[Formerly known as OOLITE MARL MEMBER.] Baker, P G, 1981.
[Formerly known as OOLITE MARL SERIES.] Buckman, J, 1895, p.458; Parsons, C F, 1976, p.58.
[Formerly known as SCOTTSQUAR HILL LIMESTONE MEMBER.] Mudge, D C, 1978a.
[Formerly known as ONE BARROW BRECCIA.] (Worssam, B C and Old, R A, 1988).
[Formerly known as SOUTH QUARRY SLUMP BRECCIA MEMBER.] (Moseley, J and Ford, T D, 1985).
[Formerly known as KILNSEY LIMESTONE.] Hudson, 1930.
[Formerly known as ST RAVEN'S EDGE MEMBER - Old code was also SRE.] Lithological epithet reintroduced [D Millward] 06/03/2003.
[Otherwise known as TANNADICE FORMATION.] Tannadice, Scone Formation. Overlying Buttergash Formation fades out to north east and Sheriffmuir and Dunblane formations merge.
[Formerly known as SHERIFFMUIR MEMBER - Old code was also SRF.] Not Entered
[Formerly known as SHERRIFMUIR FORMATION.] Francis et al., 1970; Armstrong and Paterson, 1970.
[Otherwise known as STRATH RORY FORMATION.] The name Strath Rory Formation is used Offshore.
[Otherwise known as YARLSIDE VOLCANIC FORMATION.] This term replaces Stockdale Rhyolite Formation.
[Formerly known as STOCKDALE RHYOLITE.] Green, 1915.
[Formerly known as YARLSIDE RHYOLITE.] Marr, 1892.
[Otherwise known as SAND ROCK MINE COAL.] Not Entered
[Formerly known as SAND ROCK MINE.] Not Entered
[Otherwise known as RHOS HIRWAIN SYNENITE.] Hicks H. 1879.
[Formerly known as SARN GRANITE.] Shackelton R M, et al, 1956; Matley C A, et al., 1936.
[Formerly known as SRONBANE COAL.] Not Entered
[Formerly known as SHIRDLY HILL FORMATION.] Thomas, G S P, in Bowen, 1999, 95
[Formerly known as SHIRDLY HILL SAND - Old code was also SSA.] Not Entered
[Formerly known as BUNTER SANDSTONE - Old code was BNS.] Not Entered
[Formerly known as KEUPER MARL AND SANDSTONE - Old code was KMS.] The upper part of the Sherwood Sandstone Group was formerly included within the (now obsolete) Keuper Marl and Sandstone.
[Formerly known as KEUPER SERIES - Old code was KSR.] The upper part of the Sherwood Sandstone Group was formerly included within the (now obsolete) Keuper Series.
[Formerly known as KEUPER SERIES, LOWER - Old code was LKSR.] The upper part of the Sherwood Sandstone Group was formerly included within the (now obsolete) Lower Keuper Series.
[Formerly known as STOCKINGFORD SHALES.] Includes all of the latter.
[Formerly known as STRATH SUARDAL LIMESTONE - Old code was also SSLL.] Not Entered
[Otherwise known as BILINGUITES GRACILIS MARINE BAND.] Possible correlative.
[Otherwise known as SUBCRENATUM MARINE BAND.] National standard name (Ramsbottom and others, 1978).
[Formerly known as CLEVELAND SAND FORMATION.] Chowns, T M, 1968.
[Formerly known as MARLSTONE SERIES.] Phillips, J, 1829.
[Formerly known as SANDY AND MICACEOUS BEDS.] Simpson, M, 1855.
[Formerly known as SANDY SERIES.] Fox-Strangways, C and Barrow, G, 1915.
[Formerly known as STAITHES BEDS.] Young, B and Bird, J, 1822.
[Formerly known as STAITHES FORMATION.] Hemingway, J E, 1974.
[Formerly known as DACITE GROUP.] Clark, 1964
[Formerly known as BRACKISH WATER BEDS.] Not Entered
[Formerly known as FRESHWATER BEDS.] Not Entered
[Formerly known as LOWER FRESHWATER BED.] Thompson, 1930.
[Formerly known as LOWER FRESHWATER SEQUENCE.] Aslin, in Torrens, 1968.
[Formerly known as WHITE SANDS.] Sharp, 1870.
[Formerly known as THIRD (MAIN) TERRACE OF THE SEVERN.] Worssam et al, 1989.
[Formerly known as FLUVIAL ALLUVIUM.] Not Entered
[Formerly known as STOURSCOMBE BEDS - Old code was also STB.] Not Entered
[Formerly known as PLUNGAR IRONSTONE.] Plungar Ironstone (Sylvester-Bradley and Ford, 1968)
[Formerly known as STUBTON LIMESTONE - Old code was also STBL.] Not Entered
[Otherwise known as STUBBS MINE COAL.] Not Entered
[Formerly known as STUBBS MINE.] Not Entered
[Formerly known as ST BEES TILL.] Huddart, D and Tooley, M J (1972).
[Formerly known as KEUPER BASEMENT BEDS.] Smith and Pattison, 1970.
[Formerly known as SEATON CAREW FORMATION - Old code was also STCF.] Not Entered
[Formerly known as STUDLAND CHALK.] Gale et al., 1987
[Otherwise known as STONEDELPH MINE COAL.] Not Entered
[Formerly known as STONEDELPH MINE.] Not Entered
[Formerly known as SUPRATIDAL DEPOSITS (UNDIFFERENTIATED) - Old code was also STDU.] Qualifier omitted, as unnecessary.
[Formerly known as STONE GILL LIMESTONE.] Not Entered
[Formerly known as STRATHTUMMEL SUCCESSION.] (Thomas, P R, 1980. Harris, A L, et al, 1994. Stephenson, D and Gould, D, 1995).
[Formerly known as STONESTY TUFF MEMBER - Old code was also STF.] Formerly inappropriately ranked ibn the BGS Lexicon.
[Formerly known as CALNE FREESTONE AND CORAL RAG.] Wright,1980
[Formerly known as CUMNOR FORMATION - Old code was CUMR.] Redundant term, now replaced by Stanford and Kingston formations of the Corallian Group.
[Formerly known as OSMINGTON OOLITE SERIES - Old code was OSS.] Arkell, 1927.
[Formerly known as UPPER CORALLIAN LIMESTONES.] Not Entered
[Formerly known as WHEATLEY LIMESTONE AND FARINGDON MEMBERS.] In the Swindon area (Wright, in prep.)
[Formerly known as WHEATLEY LIMESTONE, OAKLEY AND LITTLEMORE MEMBERS.] In oxford area (Horton et al, 1987)
[Formerly known as STADDON GRITS.] (Ussher, W A E, 1891).
[Formerly known as STRAITON GRITS AND CONGLOMERATES - Old code was also STGC.] Lapworth, 1882.
[Otherwise known as VANDERBECKEI MARINE BAND.] National standard Name (Ramsbottom and others, 1978).
[Formerly known as SECOND TERRACE OF THE OUSE.] Not Entered
[Formerly known as PEBBLE GRAVEL.] Bromehead, 1925, Dines and Edmonds, 1925.
[Formerly known as PLATEAU GRAVEL.] Dewey et al., 1924.
[Formerly known as SAND AND GRAVEL OF UNKNOWN AGE - Old code was SGU.] Not Entered
[Formerly known as STANMORE MEMBER.] Of the Pebble Gravel Formation of Gibbard (1999).
[Formerly known as STANMORE PEBBLE GRAVEL.] Bridgland, 1994.
[Formerly known as WARLEY GRAVEL.] Dines and Edmonds, 1925.
[Otherwise known as GANNOCHY CONGLOMERATE FORMATION.] Not Entered
[Formerly known as GANNOCHY FORMATION.] Armstrong, M and Paterson, I B, 1970
[Formerly known as STRATHFINELLA HILL CONGLOMERATE FORMATION - Old code was also STHC.] Formerly considered as a Formation within the Strathmore Group.
[Formerly known as STAFFORD HALITE FORMATION - Old code was also STHF.] Rank reassessed for local use (Howard et al., 2008).
[Formerly known as NETTLE CRAGS TUFF AND LAVAS (PART).] (Mathieson, N A, 1986)
[Formerly known as STONESIDE HILL TUFFS AND LAVAS (PART).] (Mathieson, N A, 1986)
[Otherwise known as CAMBRIENSE MARINE BAND.] National standard Name (Ramsbottom and others, 1978).
[Otherwise known as SULPHUR COAL.] Not Entered
[Otherwise known as STRUIE GROUP.] The name Struie Group is used Onshore.
[Formerly known as STRUIE GROUP - Old code was STRU.] Not Entered
[Formerly known as LOWER BOULDER CLAY.] Whitaker and Dalton, 1887.
[Formerly known as LOWER GLACIAL.] Not Entered
[Formerly known as STARSTON MEMBER.] Bowen, 1999.
[Formerly known as STARSTON TILL.] Lawson, 1982.
[Otherwise known as STOCKDALE SUBGROUP.] cf Cocks et al., 1992, Fig.6.
[Formerly known as STOCKDALE SHALES - Old code was SCSH.] Not Entered
[Formerly known as ST KILDA IGNEOUS COMPLEX - Old code was also STKI.] Previous interim Lexicon entry, now revised as the term "igneous complex" is no longer used and there is insufficient variety of rock classes to be termed a central complex.
[Formerly known as ST MARYS WELL BAY FORMATION - Old code was also STM.] Not Entered
[Otherwise known as HURLET LIMESTONE.] Not Entered
[Formerly known as ST MONANCE BRECCIATED LIMESTONE - Old code was also STMB.] Not Entered
[Formerly known as ST MONANCE LITTLE LIMESTONE - Old code was also STML.] Not Entered
[Otherwise known as STRAITON GROUP.] Not Entered
[Formerly known as STRAITON GROUP.] Part of, Lapworth, 1882.
[Otherwise known as 36 YARD ROCK.] Not Entered
[Otherwise known as COCKLETT SCAR SANDSTONES MEMBER.] Not Entered
[Formerly known as STORM BEACH - Old code was also STOB.] Not Entered
[Otherwise known as STOTFIELD CALCAREOUS FORMATION.] Stotfield Calcareous Formation on Moray Firth 1:250 000 continental shelf map.
[Formerly known as CHERTY ROCK OF STOTFIELD.] Not Entered
[Formerly known as MARLS AND CHERTY ROCK.] Golspie area.
[Formerly known as THE CHERTY ROCK.] Elgin area.
[Formerly known as BERKSHIRE OOLITE SERIES AND OSMINGTON OOLITE SERIES.] Arkell, 1933.
[Formerly known as OSMINGTON OOLITE SERIES - Old code was OSS.] Gutmann, 1970.
[Formerly known as STOUR FORMATION AND OSMINGTON FORMATION.] Wright, 1981.
[Formerly known as PISOLITE FACIES.] Gutmann, 1970.
[Formerly known as PISOLITIC BEDS.] White, 1923.
[Formerly known as LICKLE RHYOLITES.] Mitchell, 1956.
[Formerly known as STICKLE PIKE MEMBER - Old code was also STPI.] Lithological epithet added [D Millward] 06/03/2003.
[Formerly known as LOWER BOULDER CLAY.] Lower unit of a tripartite succession (Hull, 1864) now part of the Stockport Glacigenic Formation.
[Formerly known as MIDDLE SANDS.] Middler unit of a tripartite succession (Hull, 1864) now part of the Stockport Glacigenic Formation.
[Formerly known as UPPER BOULDER CLAY.] Upper unit of a tripartite succession (Hull, 1864) now part of the Stockport Glacigenic Formation.
[Formerly known as STIPERSTONES QUARTZITE - Old code was also STQ.] Not Entered
[Formerly known as LOWER EDAY SANDSTONE - Old code was LED.] On Hoy Island.
[Formerly known as STARAV GRANITE - Old code was also STRAV.] Name considered inappropriate and replaced by Starav Intrusion.
[Formerly known as WINCHESTER HARDGROUND.] Not Entered
[Otherwise known as LAIG GORGE LIMESTONE MEMBER.] Probably equivalent to LAGL on Rum (Braley, 1990)
[Formerly known as SILICIFIED CHALK.] Not Entered
[Otherwise known as STRATH RORY GROUP.] The term Strath Rory Group is used Onshore.
[Formerly known as AVON FIFTH TERRACE DEPOSITS.] On BGS sheets 199 and 216 (Barclay et al., 1997; Worssam et al., 1989). See Supplementary Information.
[Formerly known as PERSHORE SAND AND GRAVEL MEMBER.] These deposits were included in the Pershore Sand and Gravel Member (Terrace 5) of previous accounts (see Supplementary Information description).
[Otherwise known as STRUIE FORMATION.] The name Struie Formation is used Offshore.
[Otherwise known as SHINNEL FORMATION.] Stobo Slates is a local facies of the Shinnel Formation {Floyd, 1996).
[Formerly known as SHOTHOUSE SPRING TUFF.] Smith et al., 1967; Aitkenhead et al., 1985.
[Formerly known as ST TUDWAL'S GROUP - Old code was STGP.] Name/rank/code made Obsolete in favour of St Tudwal's Formation [STUD].
[Formerly known as ST TUDWAL'S SANDSTONE.] Nicholas, T C, 1915.
[Formerly known as STORNOWAY BEDS - Old code was also STW.] Not Entered
[Otherwise known as MALTBY MARINE BAND.] Ramsbottom and others, 1978.
[Formerly known as SOUTHERN UPLANDS DRIFT GROUP - Old code was also SUDR.] Not Entered
[Formerly known as COBHAM COMMON, FOXHILLS AND EASTHAMSTEAD MEMBERS.] Bowen, 1999
[Formerly known as PLATEAU GRAVEL - Old code was PLG.] Osbourne White, 1909
[Formerly known as SURREY HILL GRAVEL - Old code was also SUHG.] Not Entered
[Formerly known as SURREY HILL GRAVEL (NINTH TERRACE) - Old code was also SUHG.] Ellison and Williamson, 1999
[Formerly known as SUISGILL SEMI-PELITE.] Not Entered
[Formerly known as DIDYMOGRAPTUS SHALES.] Lapworth, 1882.
[Formerly known as DIDYMOGRAPTUS SUPERSTES MUDSTONES - Old code was also SUM.] Not Entered
[Otherwise known as SUN VEIN.] Not Entered
[Formerly known as LOGIE HEAD MEMBER.] Considered it to be a faulted repetition of the Logie Head Member of the Cullen Quartzite Formation (Read, H H, 1923).
[Formerly known as SUNNYSIDE FELDSPATHIC PSAMMITES.] Stephenson, D, et al, 1993, named it "Sunnyside Feldspathic Psammites" and included it in the Findlater Flag Formation.
[Formerly known as SUNNYSIDE SANDSTONE MEMBER - Old code was also SUNS.] Lithological epithet changed to "Psammite" (D Gould, 16-06-2000).
[Formerly known as SUPERFICIAL DEPOSITS (UNDIFFERENTIATED).] Qualifier deleted, as unnecessary.
[Formerly known as SUPERFICIAL DEPOSITS NOT MAPPED [FOR DIGITAL MAP USE ONLY] - Old code was also SUPNM.] Wording revised to remove confusion about the use of the term and code.
[Formerly known as OFFSHORE SUPERFICIAL DEPOSITS NOT MAPPED [FOR DIGITAL MAP USE ONLY] - Old code was also SUPOF.] Wording revised to remove confusion about the use of the term and code.
[Formerly known as EYNSHAM GRAVEL + STANTON HARCOURT GRAVEL.] Briggs et al, 1985
[Formerly known as SECOND OR SUMMERTOWN-RADLEY TERRACE DEPOSITS.] Harries, 1977; Corser, 1978, 1981a, b.
[Formerly known as SECOND TERRACE DEPOSITS.] BGS Maps, Robson, 1975, 1976.
[Formerly known as SECOND, 20-FOOT OR OXFORD TERRACE DEPOSITS.] Pocock, 1908.
[Formerly known as SUMMERTOWN-RADLEY FORMATION.] Bridgland, 1994.
[Formerly known as SUMMERTOWN-RADLEY MEMBER - Old code was also SURA.] Dines in Richardson, 1946; Arkell, 1947 a, b.
[Formerly known as SUMMERTOWN-RADLEY TERRACE DEPOSITS.] Sandford, 1924; Sandford in Pringle, 1926.
[Otherwise known as CORBRIDGE LIMESTONE.] Correlative in Northumberland.
[Otherwise known as FELTON ST MARY'S LIMESTONE.] Correlative in the Rothbury area.
[Formerly known as BRORA SHALE FORMATION.] Jurassic sedimantary rocks (Geological sheets 103,94,95 of Scotland);See Helmsdale (103E) and Golspie(103W) Provisional sheets.
[Formerly known as CLYNEKIRKTON SANDSTONE FORMATION - Old code was CYK.] Jurassic sedimentary rocks (Geological sheets 103,94,95 of Scotland);see Helmsdale(103E) and Golspie(103W)Provisional sheets.
[Formerly known as DUNROBIN BAY FORMATION - Old code was DRB.] Jurassic sedimentary rocks (Geological sheets 103,94,95 of Scotland);see Helmsdale(103E) and Golspie(103W) Provisional sheets.
[Formerly known as HELMSDALE BOULDER BEDS FORMATION.] Jurassic sedimentary rocks (Geological sheets 103,94,95 of Scotland);see Helmsdale(103E) and Golspie(103W) Provisional sheets.
[Otherwise known as DEARG MEMBER.] Dearg Member of the Dalcharn Formation of Sutherland in Bowen (1999)
[Formerly known as DEARG TILL FORMATION.] Incorporating the Dearg Till Formation of Walker et al, (1992) at the Dalcharn Interglacial site.
[Formerly known as BLOWN SAND - Old code was BSA.] Harrogate Sheet 62.
[Formerly known as SUTTON BLOWN SAND FORMATION - Old code was also SUTN.] Early name, subsequently revised prior to extensive use.
[Formerly known as SUTTON FORMATION - Old code was also SUTN.] Initial name, subsequently revised prior to extensive use.
[Formerly known as LOWER LIAS MARLS.] In part: Kellaway and Wilson, 1941.
[Formerly known as LOWER LIAS SHALES.] Duff and others, 1985
[Otherwise known as POTTERY MINE COAL.] Not Entered
[Otherwise known as SOD COAL.] Not Entered
[Formerly known as POTTERY MINE.] Not Entered
[Otherwise known as PANTYDARREN BEDS.] Barclay, 1989.
[Otherwise known as PANTYDARREN FORMATION.] Alternative spelling of the current name.
[Formerly known as BED 3.] George, 1954, p.288.
[Formerly known as PUSEY FLAGS - Old code was also PYF.] Not Entered
[Formerly known as PEN Y GELLI GRIT - Old code was also PYG.] Not Entered
[Otherwise known as UPPER BASIC VOLCANIC GROUP..] Not Entered
[Formerly known as PLYMOUTH LIMESTONE.] (Ussher, W A E, 1907) (Taylor, P W, 1951).
[Formerly known as PLYMOUTH LIMESTONE FORMATION.] (Chandler, P and McCall, G J H, 1985).
[Formerly known as PENNYLAND SANDSTONE FORMATION.] Fletcher & Key, 1992; Nirex 658, 1994.
[Otherwise known as POLZEATH SLATES.] Gauss and House, 1972.
[Formerly known as UPPER DEVONIAN PURPLE AND GREEN SLATES.] Reid, C, et al, 1910.
[Formerly known as YESNABY SANDSTONE FORMATION.] Name change because of Yesnaby Sandstone Group.
[Formerly known as BUCKHOLM GRITS.] Not Entered
[Formerly known as QUEENSBURY (BUCKHOLM) GRITS - Old code was also QBY.] Peach and Horne, 1899.
[Formerly known as QUEENSBURY GRITS.] Peach and Horne, 1899.
[Formerly known as QUEEN'S HILL QUARTZITE AND MICA-SCHIST GROUP.] Not Entered
[Formerly known as QUARREL HILL FLAGS - Old code was also QHF.] Not Entered
[Formerly known as QUARRY HILL SANDSTONES - Old code was also QHI.] Wilson and Hinxman, 1890, p.27.
[Formerly known as QUARTZITIC SANDSTONE GROUP - Old code was also QSG.] Not Entered
[Otherwise known as QUARRY VEIN.] Not Entered
[Formerly known as QUARRY VEIN.] Not Entered
[Formerly known as QUARTZ CONGLOMERATE - Old code was also QZC.] The term Quartz Conglomerate was originally held in the Dic_Strat dictionary. It was listed as being of Llandovery age, but no details of its geographical location were listed.
[Formerly known as HOMOCERAS MAGISTRORUM MARINE BAND.] Not Entered
[Formerly known as RETICULOCERAS GRACILE MARINE BAND.] Not Entered
[Formerly known as RETICULOCERAS BILINGUE MARINE BAND [R2B1].] Not Entered
[Formerly known as RETICULOCERAS BILINGUE MARINE BAND [R2B2].] Not Entered
[Formerly known as RETICULOCERAS BILINGUE MARINE BAND [R2B3].] Not Entered
[Formerly known as RETICULOCERAS METABILINGUE MARINE BAND.] Note also that the obsolete code MBMB was also formerly used to identify this Marine Band.
[Formerly known as RETICULOCERAS SUPERBILINGUE MARINE BAND - Old code was SPMB.] Note that the current name, Bilinguites superbilinguis was previously used with Lexicon Code BSMB
[Formerly known as GASTRIOCERAS SIGMA MARINE BAND.] Not Entered
[Formerly known as RHONDDA BEDS - Old code was also RA.] Woodland et al., 1957.
[Formerly known as RHONDDA FORMATION - Old code was also RA.] Rank revised.
[Formerly known as RAISE BECK MEMBER - Old code was also RABK.] Lithological epithet added [D Millward] 06/03/2003.
[Formerly known as RADSTOCK FORMATION - Old code was also RAD.] Kellaway and Welch, 1993.
[Formerly known as RADSTOCK GROUP - Old code was also RAD.] Kellaway, 1969.
[Otherwise known as RADLEY MINE COAL.] Not Entered
[Formerly known as RADLEY MINE.] Not Entered
[Formerly known as MIDDLE JURASSIC SERIES.] Fox-Strangways, 1892
[Otherwise known as EIGHTEEN INCH COAL.] Of Whaley Bridge.
[Otherwise known as FIRST MINE COAL.] Of Hockerly.
[Otherwise known as LITTLE COAL.] Of New Mills.
[Formerly known as RAMASAIG GROUP.] Used and commonly mis-spelled as Ramascaig or Ramascraig, by Anderson and Dunham, 1966.
[Otherwise known as RAMS MINE COAL.] Not Entered
[Formerly known as RAMS MINE.] Not Entered
[Formerly known as RAMS MINE COAL - Old code was also RAMS.] Not Entered
[Formerly known as RASCARREL GROUP.] Deegan, 1973
[Formerly known as RASCARREL SANDSTONE FORMATION - Old code was also RASC.] Not Entered
[Formerly known as RASCARREL SANDSTONES AND CONGLOMERATES.] Craig and Nairn, 1956
[Formerly known as READING BEDS - Old code was also RB.] Not Entered
[Formerly known as ROEBURNDALE FORMATION - Old code was also RBL.] Not Entered
[Formerly known as ROEBURNDALE GRIT GROUP - Old code was RBG.] Moseley, 1954. Name derived from Roeburndale Grit Group which became Roeburndale Formation (Arthurton, et al, 1988) but usage different:- NB. Previous usage includes unnamed equivalent of Ward's Stone Sandstone.
[Formerly known as READING BEDS AND LONDON CLAY [UNDIFFERENTIATED] - Old code was also RBLC.] Not Entered
[Formerly known as RUBERY SANDSTONE.] Old, et al. 1991.
[Formerly known as UPPER LLANDOVERY SANDSTONE - Old code was ULS.] Eastwood and others, 1925
[Formerly known as RUBERY SHALE - Old code was also RBSH.] Not Entered
[Formerly known as UPPER LLANDOVERY SHALE.] Eastwood and others, 1925
[Formerly known as BIGHOUSE SANDSTONE FORMATION.] Fletcher & Key, 1992.
[Formerly known as ROUEN BAY TUFF MEMBER - Old code was also RBT.] Not Entered
[Formerly known as ROUEN FORMATION.] Armstrong, M and Patterson, I B, 1970. Included within the Rouen Formation (which is not used in this area) of the Crawton Group.
[Otherwise known as SERW FORMATION..] Howells and Smith, 1997; c.f. Zalasiewicz, 1992.
[Formerly known as RHIW BACH FORMATION..] Lynas, 1973.
[Formerly known as RUBERY SANDSTONE AND RUBERY SHALE.] Wills and others, 1925
[Formerly known as RUBERY SANDSTONE SERIES.] Butler, 1937
[Formerly known as UPPER LLANDOVERY SANDSTONE AND SHALE.] Eastwood and others, 1925
[Formerly known as GOURDON FORMATION.] Previously included in the undivided Gourdon Formation
[Formerly known as ROB'S COVE CONGLOMERATE FORMATION - Old code was also RCC.] Rank revised
[Formerly known as LOWER CRAG.] Bell and Bell, 1871.
[Formerly known as RED CRAG - Old code was also RCG.] Not Entered
[Formerly known as RED CRAG MEMBER.] Not Entered
[Formerly known as RED CRAG SERIES.] Not Entered
[Otherwise known as BIG COAL [IN PART].] The Rock Coal and Little Coal together form the Big Coal.
[Otherwise known as NO.2 MARINE BAND LIMESTONE.] Not Entered
[Formerly known as RICCARTON AND RAEBERRY CASTLE BEDS - Old code was RRC.] Not Entered
[Otherwise known as RAGLAN MARL FORMATION.] Not Entered
[Formerly known as "MENEAGE CRUSH ZONE".] Not Entered
[Formerly known as GRAMPOUND GRIT - Old code was GPG.] Not Entered
[Formerly known as MENEAGE FORMATION.] Not Entered
[Formerly known as MENEAGE OLISTOSTROME - Old code was MENO.] The rocks on the Lizard that were originally referred to the "Meneage Crush Zone" were temporarily referred to as the Meneage Olistostrome but are now believed to be equivalent to the Roseland Breccia Formation of the Mevagissey area.
[Formerly known as ROSELAND AND MENEAGE BRECCIAS.] Not Entered
[Formerly known as ROSELAND VOLCANICS - Old code was RSV.] Not Entered
[Formerly known as VERYAN SERIES.] Not Entered
[Formerly known as RICHMOND CHERT SERIES.] Not Entered
[Formerly known as RADCLIFFE FORMATION - Old code was also RDCF.] Elliott, 1961.
[Formerly known as RED DOWN IRONSAND.] Arkell, 1951.
[Formerly known as RED DOWN IRONSAND MEMBER - Old code was also RDDI.] Not Entered
[Formerly known as RED SAND IN UPPER CALCAREOUS GRIT.] Arkell, 1941.
[Formerly known as SECOND (WORCESTER) TERRACE OF THE SEVERN.] Worssam et al, 1989.
[Formerly known as READYCON DEAN GRIT - Old code was also RDG.] Not Entered
[Formerly known as RED MARL.] Not Entered
[Formerly known as RAYDALE DOLOMITE - Old code was also RDO.] Not Entered
[Formerly known as RAYDALE DOLOMITE FORMATION.] Not Entered
[Otherwise known as RINGSTEAD SAND AND GRAVEL.] Bowen (1999).
[Formerly known as RAVENSDALE TUFF.] Aitkenhead et al., 1985.
[Formerly known as REBECCA GRIT (MEMBER).] Not Entered
[Formerly known as REAY TILL.] Omand, 1973. The term is abandoned as the Reay Diorite is already coded in the Lexicon.
[Formerly known as REDDISH BROWN GROUND MORAINE.] Peach and Horne, 1881.
[Formerly known as LOWER CALCAREOUS GRIT AND BERKSHIRE OOLITE SERIES.] Of Arkell, 1933; 1947.
[Formerly known as NOTHE FORMATION.] Sensu BGS (see BGS 1:50 000 map 341-342 West Fleet and Weymouth). Combined Nothe Formation and Redcliffe Formation of Wright (1986).
[Formerly known as DALCHARN CRYOTURBATE MEMBER.] Not Entered
[Otherwise known as GOLDEN COAL [SOUTH WALES COALFIELD].] Not Entered
[Formerly known as INCLUDED IN DURN HILL QUARTZITE.] Read, H H, 1923.
[Otherwise known as CAITHNESS SHELLY TILL.] Informal name
[Formerly known as LYBSTER FORMATION.] Hall and Whittington, 1989 [see also notes under Lithological Description and Geographical Limits.
[Formerly known as REST GILL TUFF MEMBER - Old code was also REG.] Formerly inappropriately ranked in the BGS Lexicon. See also Branney et al., 1993.
[Formerly known as DINORWIC FORMATION - Old code was DWIC.] Term made obsolete in favour of Red Wharf Limestone Formation [CNW, 22/10/2003].
[Formerly known as RED WHARF CHERTY LIMESTONE.] BGS, 1989
[Formerly known as RED WHARF LIMESTONE - Old code was also REL.] Rank epithet now included in name [CNW; 24/10/2003].
[Formerly known as SUMMIT LIMESTONE FORMATION - Old code was SUL.] Not Entered
[Formerly known as UPPER OLD RED SANDSTONE (PART OF).] Not Entered
[Formerly known as LATTERBARROW SANDSTONE.] Eastwood, and others, 1931. Geology of the Whitehaven and Workington district. Memoir of the Geological Survey of England and Wales.
[Formerly known as REIDH PSAMMITE - Old code was also REP.] Not Entered
[Formerly known as REDHOUSE SANDSTONES.] Not Entered
[Formerly known as REDCLIFFE SANDSTONE - Old code was also RESA.] Former informal local usage within the Mercia Mudstone Group.
[Formerly known as REDCLIFFE SANDSTONE FORMATION - Old code was also RESA.] Not Entered
[Formerly known as RESIPOL STRIPED ASSEMBLAGE [FORMATION] - Old code was also RESI.] Not Entered
[Formerly known as LOWER OLD RED SANDSTONE AND LAVAS - Old code was LORS.] Greig, D C. 1988.
[Otherwise known as BRYN COAL.] Not Entered
[Otherwise known as GNAPIOG COAL.]
[Otherwise known as WATER COAL.] Not Entered
[Otherwise known as MDMC MIDDLETON MAIN COAL (WEST YORKSHIRE).] Correlated unit.
[Formerly known as RAGLAN MARL FORMATION - Old code was also RG.] Not Entered
[Formerly known as RAGLAN MARL GROUP - Old code was also RG.] Welch and Trotter, 1961.
[Formerly known as RED DOWNTONIAN - Old code was RD.] Not Entered
[Otherwise known as SELHAM IRONSHOT SANDS.] The two units are lateral equivalents.
[Formerly known as LATERAL EQUIVALENT OF SELHAM IRONSHOT SANDS.] Not Entered
[Formerly known as PREVIOUSLY PART OF SANDGATE BEDS (UNDIFFERENTIATED).] Not Entered
[Formerly known as ROGATE BEDS.] Bristow, 1991
[Formerly known as RHAETIC - Old code was also RH.] Not Entered
[Otherwise known as RICKETS HEAD VEIN.] Not Entered
[Formerly known as RICKETS HEAD VEIN.] Not Entered
[Formerly known as RUE HILL DOLOMITES.] Not Entered
[Formerly known as RED HEAD FORMATION - Old code was also RHF.] Armstrong et al., 1985; Armstrong and Paterson, 1970.
[Formerly known as TANNADICE FORMATION.] Equivalent to lower part of Tannadice Formation and to Melgund Formation on north west limb of anticline.
[Otherwise known as CORVIE GROUP.] Of the Turriff outlier: Probably equivalent to the Rhynie Group
[Formerly known as OLD RED SANDSTONE OF RHYNIE AND CABRACH OUTLIERS.] Not Entered
[Formerly known as RED HILL OOLITE - Old code was also RHO.] Rose and Dunham, 1977.
[Formerly known as INCLUDED IN 'BROCKRAM'.] Not Entered
[Formerly known as CWMSYMLOG FORMATION - Old code was CSF.] A junior synonym, now considered obsolete due to the priority of the term Rhayader Mudstones.
[Formerly known as RHAYADER PALE SHALES FORMATION - Old code was RPSL.] Not Entered
[Formerly known as RHAYADER SHALES - Old code was also RHS.] Not Entered
[Otherwise known as GREEN MUDSTONES "MEMBER".] Term used informally in the Aberystwyth Memoir.
[Otherwise known as EDMONDIA MARINE BAND.] Ramsbottom and others, 1978.
[Otherwise known as RYHOPE SAND MEMBER.] Of the Sunderland Formation of Thomas (1999).
[Formerly known as RYHOPE SANDS.] Smith, 1994.
[Otherwise known as CROSSBASKET IRONSTONES.] Not Entered
[Otherwise known as RAESGILL CLAY IRONSTONES.] Not Entered
[Formerly known as FLUVIAL PARTS OF SWETTENHAM AND LYTHAM FORMATIONS..] Bowen. 1999.
[Formerly known as BINCOMBE MUDSTONE MEMBER.] Westhead, 1993.
[Formerly known as UPPER GLACIAL SERIES.] Kelly, 1964.
[Formerly known as WESTERN DRIFT.] Constituant of the pre-Devensian "Western Drift" of the Birmingham region.
[Formerly known as SANDGATE BEDS.] Previously treated as an undifferentiated part of the Sandgate Beds.
[Formerly known as PEN BWLCH TUFF - Old code was also PBT.] Not Entered
[Formerly known as PEN BWLCH TUFF FORMATION - Old code was also PBT.] Not Entered
[Otherwise known as PORT BEAG MEMBER.] of the Lewis Formation of Bowen, 1999.
[Formerly known as BENTON SERIES.] Strahan et al., 1914.
[Formerly known as BENTON VOLCANIC SERIES - Old code was also PBV.] Strahan et al., 1914.
[Formerly known as BALLYCASTLE WHITE LIMESTONE (LOWER PART).] Wood, 1967
[Formerly known as PORT CALLIAGH CHALK MEMBER.] Not Entered
[Formerly known as PONT-CEUNANT ASH - Old code was also PCE.] Not Entered
[Formerly known as SEDGWICKI SHALES.] Lapworth, 1882. Quarterly Journal of the Geological Society, Vol.38, p.537-666.
[Formerly known as PORTSDOWN CHALK MEMBER - Old code was also PCK.] Rank elevated to Formation as part of new Upper Cretaceous stratigraphical framework.
[Otherwise known as BELLING LIMESTONE.] Not Entered
[Formerly known as PRODUCTIVE COAL MEASURES - Old code was LMCM.] Whitehead and Pocock, 1947.
[Otherwise known as FURNACE COAL.] Possible correlative.
[Otherwise known as TOP COAL ((ROTHBURY AREA).] Alternative name, not coded, to avoid confusion with coals of similar name elsewhere,
[Formerly known as PATHHEAD BEDS.] Not Entered
[Formerly known as LOWER OLD RED SANDSTONE LAVAS.] Mykura, 1960.
[Formerly known as PENDLESIDE LIMESTONE - Old code was also PDL.] Not Entered
[Formerly known as LIGHT OOLITE.] Robertson, 1933.
[Formerly known as LLANDYFAN LIMESTONE.] In part - the Penderyn Oolite Member equates with the lower, ooidal part of the Llandyfan Limestone.
[Formerly known as PADARN IGNIMBRITE - Old code was ACPR.] Not Entered
[Formerly known as PADARN RHYOLITE - Old code was ACPR.] Not Entered
[Formerly known as BASEMENT BEDS FORMATION.] Not Entered
[Formerly known as PENTAMERUS BEDS - Old code was also PEB.] Not Entered
[Formerly known as CHERT BEDS.] Not Entered
[Formerly known as HALKYN FORMATION - Old code was HAF.] Part of the former Halkyn Formation is now placed within the Pentre Chert Formation in appropriate areas.
[Formerly known as ROAD UCHAF FORMATION.] Kokelaar and others, 1985. Journal of the Geological Society, Vol.142.
[Formerly known as TETRAGRAPTUS SHALES - Old code was TESH.] Hicks, 1875.
[Formerly known as PORTREE SHALE.] On old maps.
[Otherwise known as DENBIGH GRITS (NOW FORMATION).] Penstrowed Grits Formation is a local and subjective synonym of the Denbigh Grits Formation.
[Formerly known as DENBIGHSHIRE GRITS AND SHALES.] Not Entered
[Otherwise known as PELAW MEMBER.] Of the Sunderland Formation (Thomas, 1999).
[Formerly known as PELAW CLAY - Old code was also PELC.] Not Entered
[Formerly known as UPPER CLAYS.] Units was formerly included as part of the Upper Clays of Smith (1998).
[Formerly known as CLIFTON DOWN GROUP - Old code was CDGP.] Rocks formerly assigned to various formal and informal units withing this "Group" are now assigned to various components of the Pembroke Limestone Group.
[Formerly known as MAIN LIMESTONE GROUP - Old code was MNLS.] Dixey and Sibly, 1918. Rocks formerly covered by this obsolete term are now part of the Pembroke Limestone Group.
[Formerly known as BRENNAND GRIT FORMATION (LANCASTER DISTRICT).] Brandon, 1998.
[Formerly known as PENDLE GRIT FORMATION (LANCASTER DISTRICT).] Brandon, 1998.
[Formerly known as SKIPTON MOOR GRIT GROUP (BRADFORD DISTRICT).] Stephens et al., 1953.
[Formerly known as LINOPRODUCTUS OOLITE.] George, 1954.
[Formerly known as PENNARD SANDS - Old code was PNS.] Kellaway and Wilson, 1941; Bristow and Westhead, 1993.
[Formerly known as FRIAR WADDON MEMBER.] Westhead, R K, 1993.
[Formerly known as UPPER PURBECK BEDS - Old code was UPB.] The entire "Upper Purbeck Beds" sequence now lies within the Peveril Point Member.
[Otherwise known as ARDRISHAIG PHYLLITES.] Not Entered
[Formerly known as PORT ELLEN PHYLLITE - Old code was DBPE.] Not Entered
[Formerly known as TEIRW BEDS.] The Pen Plaenau Siltstone Formation correlates with the lower part of the Teirw Beds of Groom and Lake, 1908.
[Formerly known as PADDY END MEMBER - Old code was also PER.] Lithological epithet reintroduced [D Millward] 06/03/2003.
[Formerly known as PADDY END RHYOLITE.] Mitchell, 1940.
[Formerly known as AVON FIFTH TERRACE [DEPOSITS].] Worssam et al., 1989.
[Formerly known as FIFTH OR PERSHORE TERRACE [DEPOSITS].] Barclay et al., 1997.
[Formerly known as FIFTH TERRACE [DEPOSITS].] Williams and Whittaker, 1974.
[Formerly known as NO 5 TERRACE [DEPOSITS].] Tomlinson. 1925, Whitehead, 1989.
[Formerly known as PERSHORE MEMBER - Old code was also PERT.] Bowen, 1999.
[Formerly known as PERSHORE TERRACE DEPOSITS (WARWICKSHIRE AVON) - Old code was also PERT.] Not Entered
[Formerly known as PENNANT FORMATION (FOREST OF DEAN) - Old code was PNNT.] Not Entered
[Formerly known as PENNANT GROUP (SOUTH WALES) - Old code was PTS.] Not Entered
[Formerly known as PENNANT MEASURES.] Part of the Pennant Measures sensu Woodland et al., 1957, is now represented by the Pennant Sandstone Formation.
[Formerly known as PENNANT SANDSTONE GROUP - Old code was also PES.] Not Entered
[Formerly known as PENNANT SANDSTONES - Old code was also PES.] Not Entered
[Otherwise known as PETERLEE MEMBER.] Of the East Durham Formation of Thomas (1999).
[Formerly known as MIDDLE SANDS.] Of Smith and Francis, 1967.
[Formerly known as PETERLEE MEMBER.] Of the East Durham Formation of Thomas (1999).
[Formerly known as PETERLEE SANDS.] Of Francis, 1970.
[Otherwise known as DIPTON BURN MARINE BEDS.] Carruthers and Robertson, 1956.
[Formerly known as LOWER OXFORD CLAY - Old code was LOXC.] Callomon, 1968.
[Formerly known as RIVER TERRACE DEPOSITS, 1 (PETROCKSTOW) - Old code was also PET1.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 2 (PETROCKSTOW) - Old code was also PET2.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 3 (PETROCKSTOW) - Old code was also PET3.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 4 (PETROCKSTOW) - Old code was also PET4.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 5 (PETROCKSTOW) - Old code was also PET5.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 1 (PETROCKSTOW) - Old code was PET1.] Not Entered
[Otherwise known as A-BED EVAPORITE.] Not Entered
[Otherwise known as B-BED EVAPORITE.] Not Entered
[Otherwise known as C-BED EVAPORITE.] Not Entered
[Otherwise known as D-BED EVAPORITE.] Not Entered
[Formerly known as PENNY FARM GILL DOLOMITE FORMATION - Old code was also PFD.] Not Entered
[Formerly known as FOURTEEN INCH UNDER COAL - Old code was FINUC.] For a short time the bed was coded as Fourteen Inch Under Coal. This term is incorrect in the Glasgow area and the full name Possil Fourteen Inch Under Coal should be used.
[Formerly known as BASEMENT BEDS.] Strahan et al, 1914
[Formerly known as MIDDLE SANDS AND GRAVELS.] sensu Trotter and Hollingworth, 1932.
[Otherwise known as EQUIVALENT TO PENDLE TOP GRIT..] Moseley,1954.
[Otherwise known as EQUIVALENT TO SKIPTON MOOR GRIT..] of the Bradford district.
[Formerly known as PENDLE GRIT FORMATION - Old code was also PG.] Rank reduced to Member.
[Formerly known as PENDLE GRITS - Old code was also PG.] Name first used by R H.Tiddeman on the one-inch old series Sheet 92SE.
[Formerly known as PEN-Y-GADER VOLCANIC GROUP.] Cox, 1925.
[Formerly known as UPPER BASIC (VOLCANIC) GROUP.] Cox and Wells, 1927.
[Otherwise known as MIDDLETON LITTLE COAL.] Not Entered
[Formerly known as POWGAVIE CLAY.] Not Entered
[Formerly known as PEN Y GARNEDD LIMESTONE - Old code was also PGD.] Not Entered
[Otherwise known as HOLLYBUSH LIMESTONE.] Not Entered
[Formerly known as PASSAGE GROUP - Old code was also PGP.] Not Entered
[Formerly known as PEN Y GRAIG ASH.] Groom, T. and Lake, P. 1908. Wedd et al., 1929; Brenchley, 1966.
[Formerly known as INDIGO BOULDER CLAY.] of Jamieson, 1906.
[Formerly known as PITLURG FARM TILL - Old code was also PGTI.] Not Entered
[Formerly known as PALEOGENE (UNDIFFERENTIATED) - Old code was also PGU.] Not Entered
[Otherwise known as FOODEN LIMESTONE.] Possible correlatives.
[Otherwise known as MIDGLEY GRIT.] Probable correlatives.
[Formerly known as PHYNIS SHALES - Old code was also PHS.] Parkinson, 1936.
[Formerly known as MOTTLED SHALE OF DOG CRAG TYPE.] Mathieson, 1987.
[Formerly known as PO HOUSE TUFFS.] (Mathieson, N A, 1987)
[Formerly known as PRE-GLACIAL RAISED BEACH.] The named unit forms part of the deposits formerly included under this terminology.
[Formerly known as PISTYLL GWYN MUDSTONES MEMBER - Old code was also PIG.] Not Entered
[Otherwise known as PILKEN COAL.] The preferred spelling is uncertain.
[Formerly known as PINBAIN FORMATION - Old code was also PIN.] Not Entered
[Formerly known as BALLANTRAE BRECCIA FORMATION.] Brookfield, 1978.
[Formerly known as CROSSPODIA SHALES AND PENKILL FLAGS.] (Lapworth, 1882)
[Formerly known as PARK LIMESTONE - Old code was also PKL.] Rose and Dunham, 1977.
[Formerly known as CARBONIFEROUS LIMESTONE SERIES.] Not Entered
[Otherwise known as LYNECROOK LIMESTONE.] Possible correlatives.
[Otherwise known as WHITEHOLME LIMESTONE.] Possible correlatives.
[Formerly known as UPPER BOULDER CLAY.] Equivalent to part of the Upper Boulder Clay of Eastwood et al, 1931.
[Otherwise known as PORTLAND FORMATION.] Portland Group is equivalent to Portland Formation of Horton et al, 1995.
[Formerly known as PORTLAND BEDS - Old code was also PL.] Damon, 1860.
[Formerly known as PORTLAND FORMATION.] Horton et al, 1995.
[Formerly known as PORTLAND ROCKS.] Blake, 1880.
[Formerly known as PORTLAND STRATA.] Fitton, 1836.
[Otherwise known as BELLINGHAM COAL.] Not Entered
[Formerly known as UPPER BOULDER CLAY.] sensu Trotter and Hollingworth, 1932.
[Formerly known as LOWER COAL MEASURES - Old code was LCM.] England and Wales.
[Formerly known as PELDAR-TYPE PORPHYROID.] (Watts, W W, 1947).
[Otherwise known as LOW CARRITETH LIMESTONE.] Probable correlative.
[Otherwise known as NAWORTH LIMESTONE.] Probable correlative.
[Formerly known as PLANTINHEAD FLAGS.] Lamont, 1935.
[Formerly known as PLANTINHEAD FORMATION - Old code was also PLF.] Status changed to Member, Fortey et al., 2000.
[Formerly known as POWLEY'S HILL MEMBER - Old code was also PLH.] Lithological epithet added [D Millward] 07/03/2003.
[Otherwise known as PLODDER MINE COAL.] Not Entered
[Formerly known as PLODDER MINE - Old code was also PLM.] Not Entered
[Formerly known as BELEMNITE MARLS.] Not Entered
[Formerly known as FLIXTON MEMBER.] see Jeans (1980)
[Formerly known as PLENUS MARL - Old code was PLNM.]
[Formerly known as PLENUS MARLS - Old code was also PLMA.] Not Entered
[Formerly known as VARIEGATED BEDS.] Wood and Mortimore (1995)
[Formerly known as VARIEGATED BEDS (LOWER PRT).] Not Entered
[Formerly known as PORTLAND BEDS.] Some early workers included sands now included in the Kimmeridge Clay in the Portland Beds. Horton et al., 1995.
[Otherwise known as PLENUS MARLS MEMBER.] Not Entered
[Formerly known as UNNAMED DACITE.] Worssam et al, 1988.
[Formerly known as PORTLAND SAND - Old code was also PLS.] Not Entered
[Formerly known as BASEMENT BEDS.] Ussher. 1887.
[Formerly known as PILTON BEDS - Old code was also PLT.] Hall. 1867.
[Formerly known as PILTON SHALES - Old code was also PLT.] Edmonds et al. 1979
[Formerly known as PILTON SHALES FORMATION - Old code was also PLT.] Minor revision of lithological epithet.
[Formerly known as BUNTER PEBBLE BEDS - Old code was BNP.] (Locally)
[Formerly known as PLEWLANDS FORMATION.] Walton, E.K. 1965. "in" Craig, G Y. (Editor). The Geology of Scotland: Lower Palaeozoic rocks, 161-227.
[Otherwise known as BOTTOM OF BROOMHILL COAL.] Not Entered
[Otherwise known as L.] British Coal Index.
[Otherwise known as LLANMADOC MEMBER.] Bowen, 1999
[Formerly known as CENTRAL WALES DRIFT.] Bowen, 1970.
[Formerly known as ELENID FORMATION.] Bowen, 1999.
[Formerly known as WELSH TILL.] British Geological Survey.
[Formerly known as PITTENWEEM BEDS.] Not Entered
[Formerly known as MIDDLE COAL MEASURES FORMATION - Old code was MCM.] Central and northern England, and North Wales.
[Formerly known as PENMAEN FORMATION - Old code was also PMN.] Not Entered
[Formerly known as BALCLATCHIE BEDS.] Part of the Balclatchie Beds of Lapworth, 1882.
[Formerly known as BALCLATCHIE MUDSTONES.] Not Entered
[Formerly known as PUMPHERSTON SHALE - Old code was also PMSH.] Not Entered
[Formerly known as PORTH MEUDWY BEDS - Old code was also PMU.] Not Entered
[Formerly known as PORTH MEUDWY MEMBER.] Beckly, 1998.
[Formerly known as LOWER RHYOLITIC DIVISION.] Thomas and Thomas, 1956.
[Formerly known as LOWER PEBIDIAN (UNDIFFERENTIATED) - Old code was PVL.] Not Entered
[Formerly known as PEBIDIAN VOLCANIC COMPLEX - Old code was PVL.] Not Entered
[Formerly known as PEBIDIAN VOLCANIC COMPLEX (UNDIFFERENTIATED) - Old code was PVL.] Not Entered
[Formerly known as PEBIDIAN VOLCANIC SERIES - Old code was PV.] Not Entered
[Formerly known as PINSTANE CONGLOMERATE.] Not Entered
[Formerly known as LOWER PENDLESIDE SANDSTONE.] Not Entered
[Formerly known as PENDLE GRIT FORMATION - Old code was PG.] Not Entered
[Formerly known as PENDLESIDE SANDSTONES MEMBER - Old code was also PNDS.] Not Entered
[Formerly known as UPPER PENDLESIDE SANDSTONE.] Not Entered
[Formerly known as LOWER RHAETIC - Old code was LRRH.] Obsolete name and code.
[Formerly known as RHAETIC - Old code was RH.] Not Entered
[Formerly known as PINSKEY GILL BEDS - Old code was also PNKG.] Garwood, 1913.
[Otherwise known as GREENGATE WELL LIMESTONE.] Not Entered
[Formerly known as TWYFORD BEDS.] These "beds" are now included within the Penarth Group Marginal Facies. Warrington et al., 1980; Horton et al., 1987.
[Formerly known as BED 4.] (Geological Survey Memoir Sheet 96, 1923)
[Formerly known as DAILLY SERIES.] Lapworth, 1882
[Formerly known as NEWLANDS SERIES.] Lapworth, 1882
[Formerly known as PENRHOS SLATES - Old code was PESL.] Not Entered
[Otherwise known as GWERN GOF TUFF.] Possible but not definite equivalence.
[Formerly known as MIDDLE DIBUNOPHYLLUM LIMESTONES.] Robertson, 1933.
[Formerly known as PORTHKERRY FORMATION - Old code was also PO.] Not Entered
[Formerly known as GRAMSCATHO BEDS.] (Hendriks, E M L, 1931-1937).
[Formerly known as TANG SANDSTONE FORMATION.] The Member equates with the upper part of the Tang Sandstone Formation of Fletcher and Key, 1991.
[Formerly known as CHERTY BEDS.] This is the upper part of the Portland Chert Member on the Isle of Portland, overlying the Basal Shell Bed.
[Formerly known as OLDER LITTORAL SAND AND GRAVEL.] British Geological Survey, 1973.
[Formerly known as PORTENCROSS BEDS.] Not Entered
[Formerly known as PORTENCROSS FORMATION - Old code was also POCR.] Not Entered
[Formerly known as FREESTONE SERIES - Old code was FRES.] Not Entered
[Formerly known as POTTS GHYLL FORMATION - Old code was also POG.] Not Entered
[Formerly known as PALAGONITIC TUFFS AND PLANT BEDS.] Anderson and Dunham, 1966.
[Otherwise known as PORCELLANOUS BED.] Alternative spelling.
[Formerly known as MEADFOOT BEDS - Old code was MDT.] (Part thereof).
[Otherwise known as NEWSTEAD ROCK.] Not Entered
[Formerly known as LOWER DIVISION.] Of the Bagshot Beds (cf White, 1917). See also Pipe-Clay Division
[Formerly known as PIPE-CLAY DIVISION.] Of the Bagshot Beds (cf White, 1917). See also Lower Division.
[Formerly known as FLUVIO-GLACIAL SAND AND GRAVEL.] none
[Formerly known as GLACIAL SAND AND GRAVEL.] none
[Formerly known as POPPLETON GLACIOFLUVIAL FORMATION - Old code was also POPP.] Simple revision of Rank within new framework.
[Formerly known as SAND AND GRAVEL.] Not Entered
[Formerly known as PORTSKERRA FORMATION - Old code was also PORK.] Term originally used on the Reay sheet. The lithological epithet is added in line with usage on the adjacent Badenloch sheet.
[Formerly known as FALMOUTH BEDS - Old code was FAB.]
[Formerly known as FALMOUTH SERIES.] Not Entered
[Formerly known as GRAMPOUND AND PROBUS SERIES.] Not Entered
[Formerly known as LOWER GRAMSCATHO BEDS - Old code was LGRO.] Not Entered
[Formerly known as PORTSCATHO BEDS - Old code was PTB.] Not Entered
[Formerly known as PORTSCATHO SERIES.] Not Entered
[Formerly known as SPARA BRIDGE FORMATION.] Chesher, 1968.
[Formerly known as PORTLAND SAND.] Not Entered
[Formerly known as POWILLIMOUNT BEDS - Old code was POW.] Craig, 1956; Deegan, 1970
[Formerly known as POWILLIMOUNT MEMBER - Old code was also POSD.] Not Entered
[Formerly known as POWILLIMOUNT SANDSTONE FORMATION - Old code was also POSD.] Not Entered
[Formerly known as PONTESFORD SHALES - Old code was also POSH.] Not Entered
[Formerly known as PORTLAND STONE - Old code was PLST.] Not Entered
[Formerly known as KIRKHILL BASAL SAND/KIRKHILL GRAVEL.] Connell, Hall and Romans. 1984.
[Formerly known as KIRKHILL LOWER SAND AND GRAVEL/KIRKHILL GRAVEL.] Connell and Hall. 1987; Hall and Connell,. 1991.
[Formerly known as PITSCOW MEMBER.] of the Kirkhill Formation of Sutherland, 1999.
[Formerly known as PITSCOW SAND AND GRAVEL FORMATION.] Merritt, Connell, and Bridgland. 2000.
[Otherwise known as KINGS COAL [SOUTH WALES COALFIELD].] Not Entered
[Formerly known as GLENWHAN FORMATION - Old code was GLWH.] Glenwhan Formation is a redundant junior synonym of Portpatrick Formation.
[Formerly known as PORTPATRICK GROUP.] (Kelling, 1961)
[Formerly known as SCAR FORMATION - Old code was SCAR.] Scar Formation is a redundant junior synonym of Portpatrick Formation (Floyd, 1996).
[Formerly known as PLIOCENE-PLEISTOCENE GRAVELS AND CRAGS (UNDIFFERENTIATED) - Old code was also PPGC.] Not Entered
[Formerly known as PIPE ROCK - Old code was also PPR.] Lapworth 1883
[Formerly known as PIPE ROCK FORMATION.] Johnson and Mykura, 1989
[Formerly known as UPPER QUARTZITE PIPE-ROCK OR PIPED QUARTZITE.] Peach et al., 1907
[Otherwise known as AEGIRANUM MARINE BAND.] National standard Name (Ramsbottom and others, 1978).
[Formerly known as PEACH QUARRY LIMESTONE.] Earp et al., 1961.
[Formerly known as CARDIASTERT BEDS.] Wood in Wilson, 1972
[Formerly known as GREEN BEDS.] Manning et al., 1970
[Formerly known as PORTRUSH CHALK.] Fletcher, 1967
[Formerly known as PORTRUSH CHALK MEMBER.] Not Entered
[Otherwise known as PREESALL HALITE MEMBER.] Equivalent to the Preesall Halite Member of western Lanacashire (Howard et al., 2008).
[Formerly known as PRIMROSE HILL GNEISSES.] Not Entered
[Formerly known as PRIMROSE HILL GRANITE.] Thorpe, R S, 1974.
[Otherwise known as PELEW CLAY.] These beds are part of the Pelew Clay.
[Otherwise known as UPPER CLAYS.] Smith, 1998.
[Formerly known as PRISMATIC CLAY.] Smith and Francis, 1967.
[Formerly known as PLYMOUTH LIMESTONE.] (Part of Plymouth Limestone).
[Otherwise known as SHAFTON MARINE BAND.] Ramsbottom and others, 1978.
[Formerly known as ROCH RHYOLITIC SERIES - Old code was also PRR.] Thomas and Cox, 1924.
[Formerly known as TREFGARN RHYOLITIC SERIES.] Thomas and Jones, 1912.
[Formerly known as PURPLE SANDSTONE MEMBER.] Equivalent to the Purple Sandstone Member plus the Basal Breccia Member of Armstrong, M, Donovan, R N and Paterson, I B, 1978.
[Otherwise known as PREESALL HALITE FORMATION.] Equivalent to Preesall Halite Formation of the East Irish Sea Basin (Jackson et al., 1997)
[Formerly known as PREESALL HALITE FORMATION - Old code was also PRSA.] Warrington et al., 1980.
[Formerly known as PREESALL SALT.] Evans, 1970; Wilson, 1990; Wilson and Evans, 1990.
[Formerly known as PREN-TEG GRIT.] Shackleton, 1959.
[Formerly known as PLEISTOCENE SANDS AND GRAVELS (UNDIFFERENTIATED) - Old code was also PSGU.] Not Entered
[Formerly known as PURLEY SHALES - Old code was also PSH.] Not Entered
[Formerly known as BASAL CONGLOMERATE.] BGS, 1985.
[Formerly known as GLAUCONITIC BEDS.] Sensu lato [ but some early workers included sands now included in the Kimmeridge Clay in the Portland Sand - see Horton et al., 1995].
[Formerly known as UPPER LYDITE BED.] Not Entered
[Formerly known as POOLSCAR MEMBER - Old code was also PSR.] Not Entered
[Formerly known as PORTLAND STONE.] Also known in terms of its named components (see lithology).
[Formerly known as 1ST TERRACE DEPOSITS (RIVER SEVERN).] Not Entered
[Formerly known as LOW POWER STATION TERRACE.] (Mitchell, G H, et al, 1962).
[Formerly known as POWER HOUSE MEMBER.] (Maddy, D, et al, 1995).
[Formerly known as POWER STATION TERRACE.] (Wills, L J, 1958).
[Formerly known as MIDDLE OLD RED SANDSTONE VOLCANIC ROCKS AND SEDIMENTS OF PAPA STOUR.] Mykura and Phemister, 1976.
[Formerly known as PITTS HEAD "TUFFS".] Not Entered
[Otherwise known as HILLHOUSE LIMESTONE.] Computer Code HHL
[Formerly known as LLANBEDROG MUDSTONE.] Matley, 1938.
[Formerly known as PENNANT "SERIES" - Old code was also PTS.] Not Entered
[Formerly known as UPPER PART OF PORTSOY GROUP.] Read, H H, 1923.
[Formerly known as PLATYSCHISMA BED (NOW OBSOLETE: USE PTY) - Old code was PAB.] Not Entered
[Formerly known as PUBLOW FORMATION.] Kellaway & Welch, 1993.
[Formerly known as PUBLOW GROUP - Old code was also PUB.] Kellaway, 1969.
[Formerly known as PULSFORD LIMESTONE - Old code was also PUL.] Not Entered
[Formerly known as PULSFORD LIMESTONE FORMATION - Old code was also PUL.] Not Entered
[Formerly known as PURPLE SHALES (OF SHROPSHIRE) - Old code was also PUS.] Not Entered
[Formerly known as CAERBWDY SERIES.] Green, 1908.
[Formerly known as LOWER PEBIDIAN [UNDIFFERENTIATED] - Old code was also PVL.] Not Entered
[Formerly known as PEBIDIAN VOLCANIC COMPLEX - Old code was also PVL.] Pharaoh and Gibbons, 1994.
[Formerly known as PENRHIW SERIES.] Not Entered
[Formerly known as RAMSEY SOUND SERIES - Old code was also PVR.] Not Entered
[Formerly known as TREGINNIS SERIES - Old code was also PVT.] Not Entered
[Formerly known as PETHERWIN BEDS - Old code was also PWB.] (Reid et al. 1911); (Sedgewick and Murchison, 1840).
[Formerly known as MIDDLE GRAMSCATHO BEDS - Old code was MGRO.] Not Entered
[Formerly known as VERYAN BEDS - Old code was VEB.] Not Entered
[Formerly known as VERYAN LIMESTONE - Old code was VEL.] Not Entered
[Formerly known as PORTWAY GROUP - Old code was also PWG.] Not Entered
[Formerly known as NEW INN MEMBER AND AILSTONE MEMBER (UNDIFFERENTIATED) (WARWICKSHIRE AVON) - Old code was also NIAT.] Not Entered
[Otherwise known as SLATE COAL.] Locally in Warwickshire Coalfield.
[Formerly known as AVON THIRD TERRACE DEPOSITS.] Worssam et al., 1989; Old et al., 1991.
[Formerly known as NEW INN MEMBER - Old code was also NIT.] Bowen, 1999; Maddy et al., 1991.
[Formerly known as NEW INN TERRACE DEPOSITS (WARWICKSHIRE AVON) - Old code was also NIT.] Not Entered
[Formerly known as NO.3 TERRACE DEPOSITS.] Shotton, 1953; Tomlinson, 1925.
[Formerly known as THIRD TERRACE DEPOSITS.] Williams and Whittaker, 1974. Edmonds et al, 1965.
[Otherwise known as NEW JET AMBER MINE COAL.] Not Entered
[Formerly known as NEW JET AMBER MINE.] Not Entered
[Formerly known as SKERRIES GROUP - Old code was also NK.] Not Entered
[Formerly known as SKERRIES GRIT FORMATION - Old code was also NKSG.] Not Entered
[Otherwise known as K.] British Coal Index.
[Otherwise known as PRINCESS COAL.] Not Entered
[Otherwise known as TOP OF BROOMHILL COAL.] Not Entered
[Formerly known as MONA GNEISSES - Old code was also NMG.] Not Entered
[Formerly known as NORTHMAVEN COMPLEX.] Not Entered
[Formerly known as NEWBURY NO.1 VEIN.] Not Entered
[Formerly known as NEWBURY NO.2 VEIN.] Not Entered
[Formerly known as NEILSTON LAVAS.] Not Entered
[Otherwise known as AEGIRANUM MARINR BAND.] National standard Name (Ramsbottom and others, 1978).
[Formerly known as FIRST NORTHMOOR TERRACE DEPOSITS.] Harries, 1977; Corser, 1978, 1981, a, b.
[Formerly known as FIRST OR 10 FOOT TERRACE.] Pocock, 1908.
[Formerly known as FIRST TERRACE DEPOSITS.] BGS maps; Robson, 1975, 1976.
[Formerly known as FIRST TERRACE DEPOSITS OR FLOODPLAIN GRAVELS PLUS SUNK CHANNEL.] Sandford, 1924; Sandford in Pringle, 1926.
[Formerly known as FLOODPLAIN TERRACE DEPOSITS.] Briggs et al., 1985.
[Formerly known as FLOODPLAIN TERRACE DEPOSITS + SUBMERGED CHANNEL.] Dines in Richardson, 1946.
[Formerly known as FLOODPLAIN TERRANCE DEPOSITS PLUS BURIED CHANNEL.] Arkell, 1947a, b.
[Formerly known as NORTHMOOR MEMBER - Old code was also NO.] Not Entered
[Formerly known as NORTHMOOR [GRAVEL] FORMATION.] Bridgland, 1994.
[Formerly known as NORTHMOOR MEMBER, LOWER FACET - Old code was also NO1A.] Not Entered
[Formerly known as NORTHMOOR MEMBER, UPPER FACET - Old code was also NO1B.] Not Entered
[Formerly known as NO.5 VEIN.] Not Entered
[Formerly known as NO.7 VEIN.] Not Entered
[Formerly known as NO.9 VEIN.] Not Entered
[Formerly known as JASPER AND GREEN-ROCK SERIES - Old code was JGR.] Barrow, G, 1901.
[Otherwise known as CADNANT SHALES.] Though formerly considered as being equivalent, the term Cadnant Shales is now superseded by the term Nod Glas Formation.
[Formerly known as CADNANT SHALE FORMATION - Old code was CDN.]
[Formerly known as CADNANT SHALES - Old code was CDN.] Not Entered
[Formerly known as DDWYRYD SHALES.] Matley, 1938.
[Formerly known as LLANRYCHWYN SLATES.] Howells et al., 1981.
[Formerly known as NOD GLAS.] Pugh, 1923.
[Formerly known as NOD GLAS BLACK SHALE - Old code was also NOG.] Not Entered
[Formerly known as PENARWEL SHALES.] Matley. 1938.
[Formerly known as NODULAR BEDS - Old code was NOB.] Butler, 1939
[Formerly known as NODULAR MEMBER.] Cutler and others, 1990
[Otherwise known as AMALIAE MARINE BAND.] Ramsbottom and others, 1978.
[Formerly known as NORDON SLATE FORMATION - Old code was also NOSL.] Not Entered
[Otherwise known as CROSSDALE GRIT.] Not Entered
[Formerly known as AYCLIFF MEMBER.] Robinson, 1986.
[Formerly known as NEW PIT CHALK MERMBER.] Bristow et al., 1997.
[Formerly known as SHAKESPEAR CLIFF MEMBER.] Upper Part: Robinson, 1986.
[Formerly known as UPPER HOLYWELL BEDS AND NEW PIT BEDS.] Mortimore, 1986; Mortimore and Pomerol, 1996.
[Formerly known as BOULDER CLAY.] BGS maps and memoirs for areas east of the Pennines.
[Formerly known as ESKER.] BGS maps and memoirs for areas east of the Pennines.
[Formerly known as GLACIAL SAND AND GRAVEL.] BGS maps and memoirs for areas east of the Pennines.
[Formerly known as GLACIAL TILL.] BGS maps and memoirs for areas east of the Pennines.
[Formerly known as MORAINE.] BGS maps and memoirs for areas east of the Pennines.
[Otherwise known as NANT-Y-BIG FORMATION.] The Nant Pig Mudstone is now included within the Nant-y-Big Formation (Young et al., 1995).
[Formerly known as CERDIC SAND.] 5th Century AD.
[Formerly known as CERDIC SHORE.] 5th Century AD.
[Formerly known as NEW RED SANDSTONE SEQUENCE OR SUPERGROUP.] Laming, 1968.
[Formerly known as NEW RED SANDSTONE SERIES.] Ussher,1906.
[Formerly known as NARROW VEIN.] Pugh, 1923.
[Formerly known as NARROW VEIN FORMATION - Old code was also NRV.] Mudstone epithet added to distinguish unit from mineral veins.
[Formerly known as DOGGER.] In north Lincolnshire.
[Formerly known as IRONSTONE BEDS.] Not Entered
[Formerly known as IRONSTONE SERIES.] Not Entered
[Formerly known as NORTHAMPTON IRONSTONE BEDS.] Not Entered
[Formerly known as NORTHAMPTON IRONSTONE SERIES.] Not Entered
[Formerly known as NORTHAMPTON SAND - Old code was also NS.] Not Entered
[Formerly known as NORTHAMPTON SAND (LOWER PART).] Not Entered
[Formerly known as NORTHAMPTON SAND IRONSTONE.] Not Entered
[Formerly known as VARIABLE BEDS OF NORTHAMPTON SAND.] Not Entered
[Otherwise known as HEAVITREE BRECCIA.] Correlative in the Exeter area.
[Formerly known as ST CYRES BEDS.] Hutchins, 1963.
[Formerly known as ST CYRES BRECCIAS.] Laming, 1982.
[Formerly known as NORTH SEA DRIFT.] Not Entered
[Otherwise known as NANT HIR FORMATION.] Code NAH.
[Formerly known as NORTHHAMPTON SAND IRONSTONE - Old code was also NSI.] Not Entered
[Formerly known as NORTH ESK FORMATION - Old code was NES.] Made Obsolete in favour of NSK.
[Formerly known as SOUTH STACK GROUP - Old code was also NSS.] Not Entered
[Formerly known as BUNTER PEBBLE BEDS.] Not Entered
[Formerly known as NOTTINGHAM CASTLE FORMATION.] Warrington et al, 1980. "Sandstone" added by Charsley et al, 1990.
[Formerly known as CAMLO HILL GROUP.] (Part of)
[Formerly known as NETHERTON BRECCIA - Old code was also NTN.] Not Entered
[Formerly known as NETHERTON FORMATION - Old code was also NTN.] Not Entered
[Formerly known as LOWER GLACIAL SERIES + LATE-GLACIAL SERIES.] Kelly, 1964
[Formerly known as WESTERN DRIFT.] The Formation represents part of the pre-Devensian "Western Drift" of the Birmingham Region.
[Formerly known as NEWSIDE ARENITE.] of Rolfe (1960).
[Otherwise known as GOAT ISLAND LIMESTONE.] Not Entered
[Formerly known as NEWLANDS BEDS - Old code was NWB.] Not Entered
[Formerly known as NEWLANDS PENTAMERUS GRITS - Old code was NPG.] Not Entered
[Formerly known as KEUPER SALIFEROUS BEDS, LOWER - Old code was LKSB.] Not Entered
[Formerly known as NORTHWICH HALITE FORMATION - Old code was also NWHF.] Wilson, 1993. See Revision data.
[Otherwise known as PIGDON LIMESTONE.] Local name.
[Formerly known as BRAMPTON LOWER FELLTOP LIMESTONE - Old code was BLFL.] This misleading term, which does not equate with the Lower Fell Top Limestone of the Northumberland Trough is considered obsolete and replaced by the correlative Newton Limestone.
[Otherwise known as CREAG MHOR CONGLOMERATE.] Equivalent to Creag Mhor Conglomerate of Arran.
[Formerly known as COSHESTON GROUP.] These beds wee formerly included in the Upper Cosheston division of the Cosheston Group (Cantrill et al., 1916).
[Formerly known as CHURCH BAY TUFF FORMATION - Old code was also NXCT.] Not Entered
[Formerly known as NANT PIG MUDSTONES.] Nicholas, T C, 1915. Note that the Nant Pig Mudstone is now considered as part of the Nant-y-Big Formation (Young et al., 1995).
[Formerly known as UPPER CAERED MUDSTONES.] Nicholas, T C, 1915.
[Formerly known as NANT-YSGOLLEN MUDSTONE FORMATION - Old code was also NYG.] Former mis-spelling in the Lexicon.
[Formerly known as NANT-YSGOLLEN SHALES - Old code was also NYG.] Former mis-spelling in the Lexicon.
[Formerly known as PEGWN MUDSTONES.] Not Entered
[Formerly known as WENLOCK SHALES.] The Nant-ysgollon Mudstone Formation rocks were formerly included as the lower part of the Wenlock Shales.
[Formerly known as NANT-YSGOLLEN MUDSTONE FORMATION AND NANTGLYN FLAGS FORMATION (UNDIFFERENTIATED) - Old code was also NYNG.] Former mis-spelling in the lexicon.
[Formerly known as BRAEMORE SANDSTONE FORMATION - Old code was BRSS.] Not Entered
[Formerly known as OUSDALE ARKOSE - Old code was also OA.] Not Entered
[Formerly known as LOWER LUDLOW GRAPTOLITIC SHALES.] Not Entered
[Formerly known as ESTUARINE ALLUVIUM.] Not Entered
[Otherwise known as UPPER LIMESTONE SHALES.] Not Entered
[Formerly known as BLACK LIAS.] Stahan, 1907.
[Formerly known as BULLSLAUGHTER LIMESTONE FORMATION - Old code was BULL.] George et al., Term made obsolete [CNW; 22/10/2003].
[Formerly known as OYSTERMOUTH BEDS - Old code was also OB.] Institute of Geological Sciences, 1973.
[Formerly known as ROTTONSTONE BEDS.] Geological Survey of Great Britain, 1901.
[Formerly known as UPPER LIMESTONE SHALES - Old code was ULSH.] Strahan, 1907. Term made obsolete [CNW; 24/10/2003].
[Formerly known as OBSERVATORY GROUP - Old code was also OBG.] Not Entered
[Formerly known as ODDICOMBE BRECCIA - Old code was also OBR.] Not Entered
[Formerly known as CAREG-ONEN-BEDS.] Greenly E, et al., 1919; Reedman A J et al., 1984.
[Otherwise known as CLIFTON ROCK.] The Clifton Rock of the Huddersfield area occupies the same stratigraphical position.
[Formerly known as CHALKY BOULDER CLAY.] (Clayton, K M, 1953).
[Formerly known as OADBY TILL - Old code was also ODT.] Not Entered
[Formerly known as OADBY TILL [LIAS-RICH] - Old code was also ODTL.] Not Entered
[Formerly known as OADBY TILL [TRIAS-RICH] - Old code was also ODTT.] Not Entered
[Formerly known as BEACON HILL ACID GROUP.] Jones, B. 1933.
[Formerly known as LOWER ACID GROUP.] Cox, A H, 1925; Jones, B. 1933.
[Formerly known as LOWER ACID VOLCANIC GROUP.] Cox, A H and Wells, A K. 1927.
[Formerly known as MYNYDD GADER VOLCANIC SERIES.] Cox, A H and Wells, A K, 1921.
[Formerly known as MYNYDD-Y-GADER GROUP.] Cox, A H and Wells, A K, 1916; Cox, A H, 1925.
[Formerly known as RHYOLITIC SERIES AND ASHY SERIES.] which were combined; Lake, P and Reynolds, S H. 1912.
[Formerly known as UPPER VOLCANIC SERIES.] Lake, P and Reynolds, S H. 1896.
[Otherwise known as OLDHAM GREAT MINE COAL.] Not Entered
[Formerly known as OLDHAM GREAT MINE.] Not Entered
[Otherwise known as CODDINGTON TILL.] 1:50K sheet 199.
[Formerly known as OLDER GLACIOFLUVIAL DEPOSITS (UNDIFFERENTIATED) - Old code was also OGFD.] Qualifier deleted, as unnecessary.
[Formerly known as ABERCASTLE BEDS - Old code was ACA.] Not Entered
[Formerly known as BRUNEL BEDS - Old code was BRU.] Not Entered
[Formerly known as PORTH GAIN BEDS.] Not Entered
[Otherwise known as HARWICH FORMATION.] Used in some areas to include rocks formerly described as Oldhaven Beds.
[Formerly known as CRICKMAIL LIMESTONE - Old code was CKL.] George et al., 1976. Name made obsolete [CNW; 22/10/2003].
[Formerly known as HOTWELLS LIMESTONE FORMATION - Old code was HL.] Kellaway and Welch, 1955. Name made obsolete [RW; 02/01/2004]
[Formerly known as LLANDYFAN LIMESTONE FORMATION - Old code was LLB.] Institute of geological Sciences, 1977. Name made obsolete [CNW; 23/10/2003].
[Formerly known as MYNYDD-Y-GARREG LIMESTONE.] George et al., 1976.
[Formerly known as PENWYLLT LIMESTONE - Old code was PNWL.] George et al., 1976. Name made obsolete [RW; 30/01/2004].
[Formerly known as OLD HYTHE TILL FORMATION - Old code was also OHT.] Not Entered
[Formerly known as UPPER TILL (UNIT 4).] Peacock, J D, 1966.
[Formerly known as EXOGYRA NANA BEDS.] Davies, 1907.
[Formerly known as EXOGYRA NANA CLAY.] Davies, 1907.
[Formerly known as EXOGYRA NANA ZONE.] Davies, 1907.
[Formerly known as OAKLEY BEDS.] Arkell, 1933.
[Formerly known as OAKLEY CLAY.] Buckman, 1927.
[Formerly known as UPPER HILTON TERRACE.] (Clayton, K M, 1953).
[Formerly known as OAKWOOD FORMATION.] Not Entered
[Formerly known as LOWER PURBECK.] Not Entered
[Formerly known as LULWORTH BEDS.] In part; e.g. Wimbledon and Cope, 1978; Wimbledon, 1980.
[Otherwise known as OLIVE MINE COAL.] Not Entered
[Formerly known as OLIVE MINE.] Not Entered
[Otherwise known as OLD MINE COAL.] Not Entered
[Formerly known as OLD MINE.] Not Entered
[Formerly known as LOWER PART OF BOYNE LIMESTONE.] (Read, H H, 1923).
[Formerly known as OLD HYTHE LIMESTONE MEMBER - Old code was also OLHL.] Not Entered
[Otherwise known as DALRADIAN SUPERGROUP.] The metasedimentary component of the Ollaberry 'Series' is now believed to be largely equivalent to the Dalradian Supergroup; pro tem, however, it is considered as a separate Group within the Dalradian Supergroup.
[Formerly known as LOWER KEUPER SANDSTONE - Old code was LKS.] Not Entered
[Formerly known as ORMSKIRK SANDSTONE - Old code was also OMS.] Not Entered
[Formerly known as LOWER CARBONIFEROUS SANDSTONE AND SHALE.] Wilkinson and Kilroe, 1886.
[Formerly known as ONECOTE SANDSTONE MEMBER - Old code was also ONS.] Not Entered
[Otherwise known as OLD RED SANDSTONE SUPERGROUP.] The term Orcadian Old Red Sandstone Supergroup is now subsumed within the Old Red Sandstone Supergroup (January 1998).
[Formerly known as AQUEDUCT ROCK.] Binney, 1841.
[Otherwise known as OPENSHAW MINE COAL.] Not Entered
[Formerly known as OPENSHAW MINE.] Not Entered
[Formerly known as ORDOVICIAN UNDIVIDED - Old code was also ORD.] Cosmetic improvement of code-only description.
[Formerly known as ORROLAND FORMATION - Old code was also ORR.] Not Entered
[Formerly known as ORROLAND GROUP - Old code was also ORR.] Formerly Orroland Limestone, then Orroland Group.
[Formerly known as ORROLAND LIMESTONE BEDS.] Craig and Nairn, 1956.
[Formerly known as MAIN LIMESTONE.] George, 1956.
[Formerly known as ORETON LIMESTONE - Old code was also ORTL.] Not Entered
[Formerly known as OTTER SANDSTONE.] Selwood, and others, 1984.
[Formerly known as OTTER SANDSTONES.] Laming, 1968.
[Formerly known as UPPER SANDSTONE.] Ussher, 1902.
[Formerly known as OSDALE GROUP.] Anderson and Dunham, 1966.
[Formerly known as ONNY SHALES - Old code was also OSH.] Not Entered
[Formerly known as MOINE SERIES.] Mapped as part of the Moine psammites.
[Formerly known as OSMINGTON OOLITE SERIES - Old code was also OSS.] Arkell, 1933.
[Formerly known as OUTER STARAV GRANITE - Old code was also OSTAR.] Name considered inappropriate and superseded by Outer porphyritic monzogranite facies, Starav Intrusion.
[Formerly known as OLD STORM BEACH - Old code was also OSTB.] Not Entered
[Formerly known as OUTWOODS MEMBER.] (Moseley, J and Ford, T D, 1985).
[Formerly known as OULTON BEDS - Old code was also OULT.] Original Lexicon entry; See also Banham (1971) and Pointon (1978).
[Formerly known as OVERWATER FORMATION - Old code was also OV.] Not Entered
[Formerly known as OVERTOUN SANDSTONE FORMATION.] IGS, 1978.
[Formerly known as NORTH SEA DRIFT FORMATION.] Reid, 1882; Bowen et al, 1999. Includes Cromer and Mundesley Diamictons of Lunkka (1994), and Walcott Diamicton of Hart and Boulton (1991).
[Formerly known as OVERSTRAND GLACIGENIC FORMATION - Old code was also OVSD.] Not Entered
[Formerly known as OUTWOODS SHALES - Old code was also OWSH.] Not Entered
[Formerly known as CLUNCH CLAY.] Current name first used by Buckland "in" Phillips, 1818.
[Formerly known as CLUNCH CLAY AND SHALE.] Smith, 1817.
[Formerly known as FEN CLAY.] Buckland in Phillps, 1818, see Arkell, 1933.
[Formerly known as FEN CLAY FORMATION [PART].] Current name first used by Buckland "in" Phillips, 1818
[Formerly known as FOREST CLAY.] Buckland in Phillips, 1818.
[Formerly known as OXFORD CLAY AND KELLAWAYS FORMATIONS [UNDIFFERENTIATED] - Old code was also OXKL.] The same combination of formations was listed in reverse order in the Lexicon before adoption of an "oldest-first" policy for dealing with undifferentiated combinations.
[Formerly known as GREENSES LIMESTONE.] Frost and Holliday, 1980.
[Formerly known as OXFORD LIMESTONE - Old code was also OXL.] Not Entered
[Formerly known as OXENDALE MEMBER - Old code was also OXT.] Re-ranked (D Millward) 03/03/2003.
[Formerly known as WEST WALTON FORMATION AND OXFORD CLAY FORMATION [UNDIFFERENTIATED] - Old code was WWOX.] Order initially reversed. Now revised in line with BGS-DigMap convention.
[Otherwise known as EDAY GROUP.] The term "Orkney Sandstone Group", proposed by Fletcher (1996) is replaced by Eday Group, to resolve problems of relative ages of the unit and its components, and to avoid confusion with similar terms.
[Formerly known as DUNNET HEAD SANDSTONE GROUP.] Not Entered
[Formerly known as EDAY GROUP - Old code was EDY.] Not Entered
[Formerly known as HOY SANDSTONE GROUP (OBSOLETE NAME AND CODE: USE OYS) - Old code was HOY.] Not Entered
[Formerly known as OLD RED SANDSTONE, UPPER - Old code was ORSU.] Not Entered
[Otherwise known as UPPER OAKLEY COAL.] Not Entered
[Formerly known as PAXFORD GRAVEL - Old code was also PA.] Not Entered
[Otherwise known as PABAY SHALE FORMATION.] Not Entered
[Formerly known as PABBA SHALE.] Old maps
[Formerly known as PABBA SHALE FORMATION.] Morton and Hudson, 1995.
[Otherwise known as WARP.] As recorded in historical borehole logs and other written accounts.
[Formerly known as SAND CLAY OF 25 FOOT DRIFT OF VALE OF YORK.] British Geological Survey, 1973.
[Formerly known as PARK HILL QUARTZITE.] New unit includes latter, with exception of some Basal Conglomeratic beds (Now Boons Member).
[Formerly known as CLYDE BEDS.] Not Entered
[Formerly known as PAISLEY FORMATION - Old code was also PAIS.] Previous Lexicon entry.
[Otherwise known as PASTURE MINE COAL.] Not Entered
[Formerly known as PASTURE MINE - Old code was also PAMC.] Not Entered
[Otherwise known as LANGLEY MARINE BAND.] Ramsbottom and others, 1978.
[Formerly known as BASAL SHALES.] Not Entered
[Formerly known as GRORUDITE SWARM ["GRORUDITE" SWARM] - Old code was GRUD.] Not Entered
[Formerly known as PANDY ASH.] Wedd et al, 1929.
[Formerly known as PANDY TUFF.] Not Entered
[Formerly known as PAVEY ARK MEMBER - Old code was also PAV.] Lithological epithet added [D Millward] 06/03/2003.
[Otherwise known as DURE CLOUGH SANDSTONES MEMBER.] Not Entered
[Formerly known as PURBECK.] Not Entered
[Formerly known as PURBECK BEDS.] Buckland in Phillips, 1818.
[Formerly known as PURBECK FORMATION.] Damon, 1860.
[Formerly known as PURBECK GROUP.] Not Entered
[Formerly known as PURBECK LIMESTONE FORMATION.] Wimbledon, 1980.
[Formerly known as PURBECK STONE.] Not Entered
[Formerly known as PURBECK STRATA.] Fitton, 1836.
[Formerly known as BASAL BRECCIA.] (sheet 52)
[Formerly known as BASAL PERMIAN BRECCIA.] (sheet 33)
[Formerly known as PEBBLE GRAVEL - Old code was also PBGR.] Not Entered
[Formerly known as POTTS BECK LIMESTONE.] Not Entered
[Formerly known as MYLOR BEDS - Old code was also MLB.] Not Entered
[Formerly known as LADY BURN CONGLOMERATE.] Cocks & Toghill 1973.
[Otherwise known as MALLARDALE SHALES-WITH-LIMESTONE.] Not Entered
[Otherwise known as CUMNOCK LOW ELL COAL.] To avoid confusion with a seam of similar name of Pendleian age at Muirkirk, it is preferable to refer to the Muirkirk Lower Ell Coal as the Cumnock Lower Ell Coal, as the two coalfields are contiguous.
[Otherwise known as BROMLEY NO. 4.] Possible correspondence.
[Otherwise known as NO. 5 VEIN.] Comprising the Dabchick and Peacock veins at Greyfield Colliery.
[Otherwise known as SMITH'S VEIN.] Not Entered
[Formerly known as MIDDLE COAL (SOMERSET).] Not Entered
[Formerly known as MIDDLE VEIN.] Not Entered
[Otherwise known as UPPER LIDDESDALE GROUP.] Not Entered
[Formerly known as MIDDLE LIMESTONE GROUP - Old code was also MLG.] Not Entered
[Formerly known as UPPER BERNICIAN.] Not Entered
[Formerly known as MULLOCH HILL FORMATION - Old code was MLH.] Cocks & Toghill, 1973
[Otherwise known as STAITHES SANDSTONE FORMATION.] In England and Wales superseded by lithostratigraphical formations defined by Cox et al (1999). Corresponds broadly to the Staithes Sandstone plus Cleveland Ironstone formations in the Cleveland Basin, and Dyrham plus Marlstone Rock formations elsewhere.
[Formerly known as MILL LANE LIMESTONE - Old code was also MLLL.] Not Entered
[Formerly known as MEALL ODHAR GRANITE - Old code was also MLODR.] Name considered inappropriate and superseded by Meall Odhar Intrusion.
[Formerly known as CRUTCHMAN SANDSTONE - Old code was CRSS.] Not Entered
[Otherwise known as KUPTERSCHIEFER FORMATION.] Deegan and Skull, 1977.
[Otherwise known as LOWER PERMIAN MARL.] Eden, et al., 1957.
[Formerly known as MARL SLATE.] Sedgwick, 1892; Hutton, 1831.
[Formerly known as MANCHESTER MARL - Old code was also MM.] Taylor and others, 1963.
[Formerly known as MOTTLED MEMBER [LOWER LLANDOVERY] - Old code was also MMB.] Not Entered
[Formerly known as KEUPER MARL - Old code was KM.] Obsolete name and code.
[Formerly known as KEUPER MARL AND SANDSTONE - Old code was KMS.] Obsolete name and code.
[Formerly known as KEUPER SERIES - Old code was KSR.] Obsolete name and code.
[Formerly known as LOWER KEUPER MARL - Old code was LKM.] Obsolete name and code.
[Formerly known as LOWER KEUPER SERIES - Old code was LKSR.] Obsolete name and code.
[Formerly known as MIDDLE KEUPER MARL - Old code was MKM.] Obsolete name and code.
[Otherwise known as 'SYENITE' OR 'DIORITE INTRUSIONS'.] Commonly referred to (Eastwood et al.,1923, Carney et al.,1992)
[Formerly known as MOYNE MOOR LAVAS.] Not Entered
[Formerly known as DOLOMITIC CONGLOMERATE - Old code was DCG.] For example: Kellaway and Welch,1993.
[Formerly known as DOLOMITIC CONGLOMERATE AND RED MARL - Old code was KLIT.] Not Entered
[Formerly known as CALP SANDSTONE OF THE CALP OR MIDDLE LIMESTONE.] Not Entered
[Formerly known as CLONELLY SANDSTONE GROUP - Old code was CLSP.] Not Entered
[Formerly known as MOTTLED MUDSTONE - Old code was also MMU.] Not Entered
[Formerly known as MINTLYN BEDS - Old code was also MNB.] Not Entered
[Formerly known as LOWER THAMES FORMATION.] Sensu Gibbard, 1999, now subsumed into Maidenhaed Formation sensu BGS.
[Formerly known as MAIDENHEAD FORMATION.] Sensu Gibbard, 1999, now subsumed into Maidenhaed Formation sensu BGS.
[Formerly known as ARDAIR SEMIPELITE FORMATION.] Lateral equivalent.
[Formerly known as TARFF BANDED FORMATION.] Key et al, 1997. Lateral equivalent.
[Otherwise known as HOLT HEAT MEMBER.] Not Entered
[Formerly known as MAIN TERRACE.] Wills, L J, 1938.
[Formerly known as THIRD TERRACE (RIVER SEVERN).] Not Entered
[Formerly known as MONSAL DALE BEDS.] Not Entered
[Formerly known as MONSAL DALE FORMATION - Old code was also MO.]
[Formerly known as MONSAL DALE GROUP.] Not Entered
[Formerly known as MONSAL DALE LIMESTONES - Old code was also MO.] Not Entered
[Formerly known as MONSAL DALE LIMESTONES FORMATION - Old code was also MO.] Incorrect spelling
[Formerly known as MOSEDALE ANDESITES.] Not Entered
[Otherwise known as MALTBY MARINEBAND.] Ramsbottom and others, 1978.
[Formerly known as MOORCOCK FLAGS.] Slinger, 1936
[Formerly known as MOORCOCK SANDSTONES MEMBER - Old code was also MOCS.] Rank reduced to Bed.
[Formerly known as MOORSIDE FARM FORMATION - Old code was also MOF.] Not Entered
[Formerly known as CENOMANIAN GREENSAND.] Not Entered
[Formerly known as GREENSAND OF MORVERN - Old code was GSM.] Not Entered
[Formerly known as GORLLWYN GRITS.] Shackleton, 1959.
[Formerly known as MORAINIC DRIFT.] Lumsden et al., 1969.
[Formerly known as MOIRA BRECCIA.] (Worssam, B C and Old, R A, 1988).
[Formerly known as PERMIAN BASAL BRECCIA.] Not Entered
[Formerly known as PERMIAN BRECCIAS OR MARLS.] (Fox-Strangways, C, 1905)
[Otherwise known as HAUGHTON MARINE BAND.] Ramsbottom and others, 1978.
[Otherwise known as BLACKCLOSE COAL.] Not Entered
[Formerly known as MORANIC DRIFT - Old code was DOD.] Not Entered
[Formerly known as MORAR DIVISION - Old code was MA.] Not Entered
[Formerly known as MILLSTONE GRIT SERIES.] The formation has been traditionally included within the Millstone Grit Series (now Millstone Grit Group).
[Formerly known as MORSTON MEMBER.] Of the Hunstanton Formation of Lewis, 1999.
[Formerly known as MOELFRE TUFF MEMBER - Old code was also MOT.] Not Entered
[Otherwise known as STEWARTBY MEMBER.] (Cox et al. 1992).
[Formerly known as A VARIETY OF LOCAL NAMES.] (Mathieson, N A, 1987)
[Formerly known as MIDDLE TUFFS.] (Green, J F N, 1913)
[Otherwise known as STAIR HOLE MEMBER.] The equivalence is not total. The former "Middle Purbeck" rocks are now assigned to the upper part of the Worbarrow Tout Member (Lulworth Formation) and the whole of the Stair Hole Member (Durlston Formation).
[Otherwise known as WORBARROW TOUT MEMBER.] Upper part of Member only. See Alternative Name Description relating to Stair Hole Member, and the Alternative Name entry for Lower Purbeck Beds (LPB).
[Otherwise known as PETERBOROUGH MEMBER.] Not Entered
[Formerly known as MOHUNS PARK MEMBER.] Bristow et al., 1995, 1999.
[Formerly known as MILLSTONE POINT SANDSTONES MEMBER.] Minor revision of lithological epithet.
[Formerly known as MAIDEN PAP CONGLOMERATE FORMATION - Old code was MAPA.] This name was made obsolete as it was clearly a misnomer with at least 90 percent of the Formation comprising sandstone.
[Formerly known as MAIDEN PAP SANDSTONE.] DigMap V 1
[Formerly known as MONKS PARK SHALES.] Includes all of latter.
[Formerly known as MIDDLE POTASH - Old code was also MPT.] Not Entered
[Formerly known as LOWER CULM MEASURES.] In part; Ussher 1887, 1892; Dearman, 1959.
[Formerly known as LOWER SHALE AND QUARTZITE GROUP.] Of Dearman, 1959.These rocks now form part of the Meldon Shale and Quartzite Formation.
[Formerly known as UPPER SHALE AND QUARTZITE GROUP.] Of Dearman, 1959.These rocks now form part of the Meldon Shale and Quartzite Formation.
[Formerly known as VOLCANIC GROUP.] Of Dearman, 1959.These rocks now form part of the Meldon Shale and Quartzite Formation.
[Formerly known as MELBOURN ROCK - Old code was also MR.] Not Entered
[Formerly known as MARLSTONE.] Smith, W, 1817.
[Formerly known as MARLSTONE ROCK.] Not Entered
[Formerly known as MARLSTONE ROCK BED - Old code was also MRB.] Brandon, A, et al, 1990, (but recommending formational status).
[Formerly known as MARLSTONE ROCK MEMBER.] Gaunt, G D, Fletcher, T P and Wood, C J, 1992.
[Otherwise known as SALOP FORMATION.] The former Meriden Formation rocks are now assigned to the Salop Formation, Powell et al, 1999.
[Formerly known as COVENTRY SANDSTONE FORMATION.] In upper part, Old et al, 1987.
[Formerly known as KEELE FORMATION.] In lower part, Old et al, 1987.
[Formerly known as ARENACEOUS LIMESTONE.] Not Entered
[Formerly known as SANDY LIMESTONE: ARENACEOUS LIMESTONE; SANDY PASSAGE BEDS.] Not Entered
[Formerly known as LOWER LIAS, MARGINAL FACIES - Old code was also MRGF.] Not Entered
[Otherwise known as RAVENHEAD MAIN DELF.] Not Entered
[Formerly known as RAVENHEAD MAIN DELF.] Not Entered
[Formerly known as KEASGILL TUFFS.] Nutt, 1970.
[Formerly known as MARDALE FORMATION - Old code was also MRL.] Lithological epithet added [D Millward] 07/03/2003.
[Formerly known as MARDALE TUFF FORMATION - Old code was also MRL.] Not Entered
[Formerly known as NAN BIELD FORMATION.] Soper and Numan, 1974.
[Formerly known as MYNYDD RHIW RHYOLITIC TUFF MEMBER.] (Fitch, F J, 1967).
[Formerly known as MYLOR SLATES - Old code was also MRSL.] Not Entered
[Otherwise known as BRIDPORT SAND FORMATION.] Not Entered
[Formerly known as MYTHOP HALITE FORMATION - Old code was also MSA.] Warrington et al., 1980.
[Formerly known as MYTHOP SALTS.] Wilson and Evans, 1990.
[Formerly known as FELDSPATHIC GNEISS OF STRATHY.] Not Entered
[Formerly known as GRANITE.] (Fox-Strangways, 1903).
[Formerly known as MAUCHLINE SANDSTONE.] Not Entered
[Otherwise known as DARK GREY MUDSTONE MEMBER.] Computer Code - DMM
[Formerly known as DARK GREY MUDSTONE MEMBER - Old code was DMM.] Not Entered
[Formerly known as MERSEY HIGH TERRACE.] The Mersey High Terrace of Johnson, 1970 is subsumed into the Mersey Valley Formation.
[Formerly known as SWETTENHAM FORMATION.] The fluvial parts (terraces) of the Swettenham Formation of Thomas in Bowen, 1999, p.95 are now included in the Mersey Valley Formation.
[Otherwise known as MAM TOR SANDSTONES.] Allen, 1960.
[Formerly known as MYNYDD TIR-Y-CWMWD GRANOPHYRIC MICROGRANITE - Old code was also MTGM.] Not Entered
[Otherwise known as ASHCLOUGH MARINE BAND.] Local name in parts of the Lancashire coalfield area, possibly still to some extent in current use.
[Otherwise known as BLACKSTONE MARINE BAND.] Local name in the Coalbrookdale area, possibly still to some extent in current use.
[Otherwise known as GRAIGOG MARINE BAND.] Local name in parts of the South Wales Coalfield area, possibly still to some extent in current use.
[Otherwise known as HIGH MAIN MARINE BAND.] Local name, Northumberland/Durham area.
[Otherwise known as MOSS CANNEL MARINE BAND.] Local name, North Staffordshire Coalfield area, possibly still to some extent in current use.
[Otherwise known as POWELL MARINE BAND.] Local name in parts of the Denbighshire and Flintshire coalfield areas, possibly still to some extent in current use.
[Otherwise known as SUB-BROOCH MARINE BAND.] Local name in parts of the South Staffordshire and Cannock coalfield areas, possibly still to some extent in current use.
[Otherwise known as TWO-FOOT MARINE BAND.] Local name in parts of the Derbyshire, Nottinghamshire and Yorkshire coalfield areas, possibly still to some extent in current use.
[Formerly known as ASHCLOUGH MARINE BAND - Old code was ASHMB.] Local name in parts of the Lancashire coalfield area, possibly still to some extent in current use.
[Formerly known as BLACKSTONE MARINE BAND - Old code was BSTMB.] Local name in the Coalbrookdale area, possibly still to some extent in current use.
[Formerly known as GRAIGOG MARINE BAND - Old code was GGGMB.] Local name in parts of the South Wales Coalfield area, possibly still to some extent in current use.
[Formerly known as HIGH MAIN MARINE BAND - Old code was HMMB.] Local name, Northumberland and Durham coalfield areas, possibly still to some extent in current use.
[Formerly known as MOSS CANNEL MARINE BAND - Old code was MOCMB.] Local name, North Staffordshire Coalfield area, possibly still to some extent in current use.
[Formerly known as POWELL MARINE BAND - Old code was POWMB.] Local name in parts of the Denbighshire and Flintshire coalfield areas, possibly still to some extent in current use.
[Formerly known as SUB-BROOCH MARINE BAND - Old code was SUBMB.] Local name in parts of the South Staffordshire and Cannock coalfield areas, possibly still to some extent in current use.
[Formerly known as TWO-FOOT MARINE BAND - Old code was 2FTMB.] Local name in parts of the Derbyshire, Nottinghamshire and Yorkshire coalfield areas, possibly still to some extent in current use.
[Formerly known as MEADOWTOWN BEDS - Old code was MEB.] Not Entered
[Formerly known as MEADOWTOWN LIMESTONE BEDS.] Not Entered
[Otherwise known as SUTTON MARINE BAND.] Ramsbottom and others, 1978.
[Formerly known as GLACIAL SAND AND GRAVEL.] Some of the deposits were included within this generic grouping on BGS Sheet 114.
[Formerly known as GLACIOFLUVIAL SHEET DEPOSITS.] Some of the deposits were included within this generic grouping on BGS Sheet 115.
[Formerly known as MARTIN MEMBER.] Bowen, 1999.
[Formerly known as MARTIN TERRACE DEPOSITS.] in part - Straw, 1958.
[Formerly known as OLDER RIVER SAND AND GRAVEL.] Some of the deposits were included within this generic grouping on BGS Sheet 114.
[Formerly known as RIVER AND GLACIOFLUVIAL SHEET DEPOSITS, UNDIVIDED.] Possibly some of the deposits were included within this generic grouping on BGS Sheet 115.
[Formerly known as TATTERSHALL AIRFIELD MEMBER.] Possibly (see Geographical Description and Reference Section); Bowen, 1999.
[Formerly known as UPPER RIVER TERRACE DEPOSITS.] Some of the deposits were included within this generic grouping on BGS Sheet 115.
[Otherwise known as BIRRENSWARK VOLCANIC FORMATION.] Correlative.
[Formerly known as KELSO LAVAS.] Not Entered
[Formerly known as KELSO TRAPS - Old code was also KT.] Not Entered
[Otherwise known as ETRURIA FORMATION.] Rocks of the former Kinlet Beds/Kinlet Formation are now assigned to the Etruria Formation (Powell et al., 1999).
[Formerly known as KINLET BEDS - Old code was also KTB.] Not Entered
[Formerly known as KIRKHILL GELIFLUCTATE COMPLEX 1.] Connell and Hall, 1987; Hall and Connell, 1991; Hall and jarvis, 1993.
[Formerly known as KIRKHILL HEAD 1.] Connell, Hall and Romans, 1984.
[Formerly known as KIRKTON GELIFLUCTATE BED.] Merritt, Connell and Bridgland, 2000.
[Formerly known as KIRKTON MEMBER.] of the Kirkton Formation of Sutherland, 1999.
[Formerly known as BECKLEY SAND, TEMPLE COWLEY AND ARNGROVE SPICULITE MEMBERS.] In Oxford area commonly referred to in terms of its component units (members), (Horton et al.,1995)
[Formerly known as CUMNOR FORMATION - Old code was CUMR.] Redundant term now replaced by Stanford and Kingston formations of the Corallian Group.
[Formerly known as LOWER CALCAREOUS GRIT.] Lower Calcareous Grit plus Berkshire Oolite Series (Arkell, 1927)
[Formerly known as LOWER CALCAREOUS GRIT+HIGHWORTH LIMESTONE+PUSEY FLAGS+HIGHWORTH CLAY+HIGHWORTH GRIT.] Not Entered
[Formerly known as LOWER CORALLIAN - Old code was LCR.] (Of some authors)
[Formerly known as KEVIN LIMESTONES - Old code was also KV.] Not Entered
[Otherwise known as SCAD VEIN.] Not Entered
[Formerly known as LENY GRIT (IN PART).] Stone, M, 1957
[Formerly known as SHELLY SANDS AT 50FT OD.] Probable correlation. Trotter, F M, et al. 1937.
[Otherwise known as HAIGH MOOR ROCK.] Probable equivalent in areas to the north, towards Pontefract and Wakefield.
[Otherwise known as SIX FOOT COAL.] Not Entered
[Formerly known as KYNACHAN PSAMMITE.] (Thomas, P R, 1980).
[Formerly known as KYNACHAN QUARTZITE.] (Thomas, P R, 1980).
[Formerly known as DURNHILL QUARTZITE.] In the northern part. This name is retained for a similar unit north of Keith.
[Otherwise known as WOODHEAD SANDSTONE.] Cheadle - South Staffordshire area.
[Formerly known as LEWISIAN ROCKS [UNDIFFERENTIATED] - Old code was also L.] Not Entered
[Formerly known as LOWER OLD RED SANDSTONE "TUFFS".] These rocks were formerly included as part of the Lower Old Red Sandstone "Tuffs" on the 1986 edition of 1:50 000 Sheet Scotland 15W.
[Formerly known as LANGWELL CONGLOMERATE - Old code was also LACO.] Not Entered
[Formerly known as LACUSTRINE DELTA DEPOSITS - Old code was also LADD.] Revised for consistency with related terms.
[Formerly known as ACHRAY SANDSTONE.] Not Entered
[Otherwise known as HIGH MAIN COAL.] Not Entered
[Otherwise known as STONE COAL.] Not Entered
[Formerly known as LAIG LIMESTONE FORMATION - Old code was also LAGL.] Not Entered
[Formerly known as LIMESTONES IN LAGGAN BURN.] Bulman, 1945-47.
[Formerly known as LOCH AILSH INTRUSION - Old code was also LAIL.] Not Entered
[Formerly known as LOWER ABDON LIMESTONE - Old code was also LAL.] Not Entered
[Otherwise known as DUN LIMESTONE MEMBER.] Lamberton Limestone considered obsolete within the revised (2008) Carboniferous Stratigraphical Framework.
[Otherwise known as EDMONDIA MARINE BAND.] Tentative correlation (Ramsbottom and others, 1978).
[Formerly known as CRACKINGTON FORMATION (PARS).] (McKeon et al, 1973) Freshney et al. 1972)
[Formerly known as BED F.] (Peach and Horne, 1899).
[Formerly known as BEDS AT F.] (Henderson and Brown, 1870).
[Formerly known as MIDDLE MEMBER WETHER LAW LINN FORMATION.] (Robertson, 1989).
[Formerly known as MIDDLE PART OF BED C.] (Howell and Geikie, 1861).
[Formerly known as MIDDLE PART OF FOSSILIFEROUS MUDSTONES AND SILTSTONES.] Mykura and Smith in Mitchell and Mykura, 1962.
[Formerly known as UNIT D, WETHER LAW LINN FORMATION.] (Tipper, 1976).
[Formerly known as LATTERBARROW SANDSTONE.] Eastwood et al., 1931.
[Formerly known as "ESTHERIA" SHALES.] Not Entered
[Formerly known as LONFEARN MEMBER - Old code was LOFN.] Not Entered
[Formerly known as BRICKEARTH - Old code was BRK.] Not Entered
[Formerly known as LANGLEY SILT FORMATION - Old code was also LASI.] Not Entered
[Formerly known as LLANDRINDOD TUFF - Old code was LLDT.] Not Entered
[Formerly known as CYRTOGRAPTUS GRAYI MUDSTONES - Old code was CGG.] Lapworth, 1882. Quarterly Journal of the Geological Society, Vol.38, p.537-666.
[Formerly known as LOWER ACID RHYOLITIC GROUP.] Not Entered
[Formerly known as MYNYDD Y GADER RHYOLITIC GROUP.] Not Entered
[Formerly known as MYNYDD Y GADER VOLCANIC GROUP - Old code was MGV.] Not Entered
[Formerly known as LOCH ALINE GLASS SAND.] Not Entered
[Formerly known as LOCH ALINE SANDSTONE - Old code was also LAWS.] Former spelling in the Lexicon. Geographical epithet modified and Rank added.
[Formerly known as LOCH ALINE WHITE SANDSTONE.] Not Entered
[Formerly known as WHITE SANDSTONE.] Not Entered
[Formerly known as LAW FORMATION.] Now Clyde Valley Formation: Browne and McMillan, 1989a.
[Formerly known as RED SERIES.] Part of the "Red Series" of Hall and Connell, 1991.
[Formerly known as LUDLOW BONE BED - Old code was also LBB.] Not Entered
[Formerly known as LARRY BANE CHALK.] Fletcher, 1967
[Formerly known as LARRY BANE CHALK MEMBER.] Not Entered
[Formerly known as LOGIE-BUCHAN DRIFT GROUP - Old code was also LBD.] Epithet "Drift" revised to "Glacigenic" in line with BGS policy (November 2003).
[Formerly known as LOGIE-BUCHAN GLACIGENIC GROUP - Old code was also LBD.] Not Entered
[Formerly known as RED COASTAL SERIES.] Not Entered
[Formerly known as RED SERIES.] Not Entered
[Otherwise known as BORDER GROUP.] Beds formerly placed within the Lower, Middle and Upper Border groups are now subsumed within the Border Group.
[Formerly known as LOWER CHANNEL DEPOSITS.] Holmes, 1977. Report of the Institute of Geological Science, No.77/14.
[Formerly known as LADY BURN MUDSTONE.] Not Entered
[Formerly known as BRINGEWOOD GROUP.] Not Entered
[Formerly known as LOWER BRINGEWOOD BEDS.] Not Entered
[Otherwise known as CEMENTSTONE GROUP.] Approximately equivalent to Lower Border Group.
[Formerly known as BORDER GROUP, LOWER (OBSOLETE CODE: USE LBO) - Old code was LBG.] Not Entered
[Formerly known as LLANBEDR SLATES.] Matley and Wilson, 1946.
[Formerly known as LOCH BORRALAN INTRUSION - Old code was also LBRR.] Not Entered
[Formerly known as BOWLAND SHALE, LOWER - Old code was also LBS.] Not Entered
[Formerly known as LAG BANK FORMATION - Old code was also LBT.] Lithological epithet reintroduced [D Millward] 05/03/2003.
[Formerly known as LAG BANK TUFF - Old code was also LBT.] Mitchell, 1956.
[Otherwise known as ABDY COAL.] Especially in parts of Nottinghamshire.
[Formerly known as LLYN-Y-GAFR SPILITIC GROUP - Old code was LYG.] Not Entered
[Formerly known as THE LOWER BASIC SPILITIC GROUP.] Not Entered
[Formerly known as BERRY MEMBER.] Page, 1989. [See Supplementary Information Description.]
[Otherwise known as HARWICH FORMATION.] Used in some areas to include rocks formerly described as London Clay Basement Bed.
[Formerly known as CAITHNESS FLAGSTONE SERIES.] Not Entered
[Formerly known as LOWER CAITHNESS FLAGSTONE FORMATION - Old code was also LCF.] Not Entered
[Formerly known as LOWER CAITHNESS FLAGSTONE GROUP - Old code was also LCF.] Not Entered
[Otherwise known as LOWER CALCAREOUS GRIT FORMATION.] In northern England the Lower Calcareous Grit is considered as a Formation within the Corallian Group. Farther south it is considered to be a part of the Kingston Formation, which is in turn part of the Corallian Group.
[Formerly known as FLUVIO-MARINE CRAG.] Lyell, 1938
[Formerly known as ICENIAN CRAG.] Harmer, 1900.
[Formerly known as MAMMALIFEROUS CRAG.] Charlesworth, 1837
[Formerly known as UPPER CRAG.] Bell and Bell, 1871.
[Formerly known as DUMFRIES SANDSTONE - Old code was DFS.] Not Entered
[Formerly known as LOWER OLD RED SANDSTONE - Old code was LORS.] Not Entered
[Otherwise known as COWGLEN SCLUTTY COAL.] Not Entered
[Formerly known as LINCOLN HILL LIMESTONE - Old code was also LCHL.] Not Entered
[Otherwise known as LOWER CHAMBER MINE COAL.] Not Entered
[Formerly known as LOWER CHAMBER MINE.] Not Entered
[Formerly known as CHALK, LOWER (NOW LOWER CHALK FORMATION) - Old code was also LCK.] Lower Chalk has had a variety of meanings, many of which included part of the "Middle Chalk" and excluded the "Chalk Marl"
[Formerly known as BRICKCLAY.] Brickclaus associated with the "100-foot Raised Beach".
[Formerly known as COMLEY LIMESTONE FORMATION.] Brasier, M D, 1989
[Formerly known as LOWER COAL MEASURES (SCOTLAND) - Old code was also LCMS.] Cosmetic reordering of the name to match formats used in the southern UK.
[Formerly known as PRODUCTIVE COAL MEASURES (PART).] Not Entered
[Formerly known as LOWER CAMREGAN GRITS.] (Lapworth, 1882)
[Formerly known as RHYNCHONELLA GRIT.] (Lapworth, 1882)
[Otherwise known as PLESHETTS DUN LIMESTONE.] Not Entered
[Formerly known as COMLEY SANDSTONE SERIES.] Not Entered
[Formerly known as LOWER COMLEY SANDSTONE GROUP.] Not Entered
[Formerly known as LOWER COMLEY SERIES.] Including limestone now formally named Lower Comley Limestones, Sheet 166
[Otherwise known as SELKER TILL.] Bowen et al., 1999.
[Formerly known as LOWCA TILL.] Of Huddart and Tooley, 1972.
[Formerly known as LOWER CULM - Old code was also LCU.] Not Entered
[Otherwise known as UPPER FOREST BEDS AND LOWER LLANBADOC BEDS [UNDIFFERENTIATED].] The order of the names has been reversed to conform to current BGS practice of placing the older named unit first.
[Formerly known as LIMESTONE COAL GROUP AND UPPER LIMESTONE GROUP - Old code was also LCUL.] Not Entered
[Otherwise known as BLACK ROCK LIMESTONE SUBGROUP.] Not Entered
[Formerly known as LOWER DEVIL'S BRIDGE FORMATION - Old code was also LDB.] As a subdivision of the Devil's Bridge Formation, the former rank was inappropriate. The term is now retained with informal Member status.
[Formerly known as BEN LEDI GRITS.] (Part of the Ben Ledi Grits).
[Otherwise known as BANKNOCK UPPER DRUMGRAY COAL.] Not Entered
[Otherwise known as CONEYPARK COXROD COAL.] Not Entered
[Otherwise known as DIRT COAL.] Not Entered
[Formerly known as PREVIOUSLY COMPRISED LOWER AND UPPER LIDDESDALE GROUP.] Not Entered
[Formerly known as LACUSTRINE DEPOSITS (UNDIFFERENTIATED) - Old code was also LDE.] Qualifier deleted, as unnecessary.
[Formerly known as ROUGH COAL.] Formerly applied in the Penston and Winton Hill areas.
[Formerly known as UNDER COAL.] Formerly applied in the Penston and Winton Hill areas.
[Otherwise known as FOUR FATHOM LIMESTONE MEMBER.] Low Dean Limestone considered obsolete within the revised (2008) Carboniferous Stratigraphical Framework.
[Otherwise known as LOWDEAN LIMESTONE.] Spelling formerly used in the Lexique Stratigraphique and in the BGS Lexicon.
[Otherwise known as CROMHALL SANDSTONE FORMATION.] Currently the "Lower Drybrook Sandstone" is condsidered as a leaf of the Cromhall Sandstone Formation, probably of Member Rank, but no new name has yet been proposed.
[Formerly known as LOWER DUNSCOME BED - Old code was also LDU.] Not Entered
[Formerly known as EASTERN GNEISSES.] Not Entered
[Otherwise known as DUN LIMESTONE MEMBER.] Ladies Wood Limestone considered obsolete within the revised (2008) Carboniferous Stratigraphical Framework.
[Otherwise known as SEVEN FOOT COAL.] Not Entered
[Formerly known as PROLECANITES COMPRESSUS BEDS.] Parkinson, 1926.
[Formerly known as AKERS STEPS AND ST MARGARETS MEMBERS.] Robinson, 1986.
[Formerly known as LEWES NODULAR AND FLINTY CHALK MEMBER.] Mortimore, 1986.
[Formerly known as LEWES NODULAR CHALK MEMBER.] Bristow et al., 1997
[Formerly known as AMMONITE AND BELEMNITE BED.] Brodie, P B, 1851.
[Formerly known as FERRUGINOUS OOLITE ('BELEMNITE BED').] Brodie, P B, 1850.
[Formerly known as LECKHAMPTON LIMESTONE MEMBER.] Mudge, D C, 1978a.
[Formerly known as SANDY FERRUGINOUS BEDS OR STONE.] Buckman, J, 1893, p.510; 1901, pp.150-151.
[Formerly known as SANDY FERRUGINOUS LIMESTONES.] Witchell, E, 1882, p.39.
[Formerly known as SANDY LIMESTONE.] Witchell, E, 1886, p.268.
[Formerly known as SCISSUM BEDS.] Richardson, L, 1904.
[Formerly known as LOWER EDAY SANDSTONE - Old code was also LED.] Not Entered
[Otherwise known as DULAS LIMESTONE.] Of Colwyn Bay: Lateral equivalent of Leete Limestone Formation.
[Otherwise known as TANDINAS LIMESTONE.] Of Anglesey: Lateral equivalent of Leete Limestone Formation.
[Otherwise known as TY-NANT LIMESTONE.] Of Llangollen: Lateral equivalent of Leete Limestone Formation.
[Formerly known as CAREG-ONEN LIMESTONE FORMATION - Old code was COLF.] Not Entered
[Formerly known as DULAS LIMESTONE - Old code was DLSL.] = UPPER PART OF LEETE LIMESTONE FORMATION
[Formerly known as LEETE LIMESTONE FORMATION (OBSOLETE CODE: USE LEEL) - Old code was LEET.] Not Entered
[Formerly known as LOWER BROWN LIMESTONE - Old code was LBRL.] Not Entered
[Formerly known as SYCHTYN MEMBER.] Not Entered
[Formerly known as TANDINAS LIMESTONE FORMATION - Old code was TDL.] Term made obsolete [CNW; 24/10/2003].
[Formerly known as TY-NANT LIMESTONE FORMATION - Old code was TNL.] Not Entered
[Formerly known as LOCH EIL DIVISION.] Not Entered
[Formerly known as LOWER ELTON BEDS - Old code was also LEL.] Replaced by the term Lower Elton Formation for BGS informal use.
[Formerly known as LENTHAY BED.] Torrens, 1968; Cope and others, 1980.
[Formerly known as SPHAEROIDOTHYRIS BED.] Fowler, 1957.
[Formerly known as LETHAM BEDS.] Not Entered
[Formerly known as LEIGHLAND BEDS - Old code was also LESL.] Not Entered
[Otherwise known as CLOUGHTON FORMATION.] Rocks formerly referred to the Lower Estuarine (or Deltaic) "Series" now form the lower part of the Cloughton Formation.
[Otherwise known as GRANTHAM FORMATION.] See rationalization under "Revisions".
[Otherwise known as CASTLECARY LIMESTONE.] Not Entered
[Otherwise known as DUN MEMBER.] Of the Lewis Formation of Bowen, 1999.
[Formerly known as RUAIVAL DRIFT.] Sutherland, et al., 1984.
[Otherwise known as DENEND GRAVEL FORMATION.] Not Entered
[Formerly known as LEYS LOWER GRAVELS OF KIRKHILL SEQUENCE.] Hall, A M and Connell, E R, 1986.
[Formerly known as LEYS MEMBER.] of the Kirkhill Formation of Sutherland, 1999.
[Formerly known as LEYS TILL.] Hall and Jarvis. 1993.
[Formerly known as LEYS TILL FORMATION.] Merritt, Connell and Bridgland. 2000.
[Formerly known as LINGULA FLAGS - Old code was also LF.] Not Entered
[Formerly known as LOCH FAD CONGLOMERATE - Old code was also LFC.] Anderson, 1946.
[Formerly known as SCHISTOSE CONGLOMERATE.] 1" sheet 29, 1971.
[Formerly known as LOWER FIRECLAYS OF THE PASSAGE GROUP - Old code was also LFCL.] Not Entered
[Formerly known as FOLLIFOOT GRIT.] as two beds [Fox-Strangways, 1873, 1908].
[Formerly known as LOWER FOLLIFOOT GRIT.] Hudson, 1934, 1937, 1938; Wilson, 1960, 1977; Cooper and Burgess, 1993.
[Formerly known as LOWER FOLLIFOOT RIDGE GRIT.] Edwards et al., 1950.
[Formerly known as FLOW MOSS LAVAS.] Not Entered
[Formerly known as LANE FOOT SANDSTONE MEMBER - Old code was also LFOS.] Not Entered
[Formerly known as LINGULA FLAG SERIES - Old code was also LFS.] Not Entered
[Formerly known as BASEMENT BEDS.] (Dunham and Rose, 1941; Rose and Dunham, 1977)
[Otherwise known as LOWER FOOT MINE COAL.] Not Entered
[Formerly known as LOWER FOOT MINE.] Not Entered
[Otherwise known as CORBRIDGE LIMESTONE.] Not Entered
[Otherwise known as LOWER FELL TOP LIMESTONE.] Spelling formerly used on various BGS maps but now considered incorrect, with "Felltop" being preferred.
[Formerly known as LOWER FELL TOP LIMESTONE - Old code was also LFTL.] This spelling is now considered incorrect by the BGS. However it still occurs on a number of published maps, and hence may also be considered as an alternative, though unrecommended, spelling.
[Otherwise known as HONLEY MARINE BAND.] Ramsbottom and others, 1978.
[Otherwise known as BRAINSHAUGH LIMESTONE.] Correlative in the Rothbury area.
[Otherwise known as LOWER FELL TOP LIMESTONE.] Correlative in the area north of the River Tyne.
[Formerly known as DOWNTONIAN RED MARL.] Not known. Mentioned in Cocks, L R M, and others, 1971.
[Formerly known as ALLUVIUM - Old code was ALV.] Not Entered
[Formerly known as LODGE FARM LIMESTONE - Old code was also LGFL.] Not Entered
[Formerly known as PLUNGAR IRONSTONE.] Sylvester-Bradley and Ford, 1968).
[Formerly known as LOWER GRAVELS.] Not Entered
[Otherwise known as EGLWYSEG LIMESTONE.] Of Llangollen: lateral equivalent of Loggerheads Limestone Formation, Warren, et al, 1984.
[Otherwise known as GREAT ORME LIMESTONE.] Of Llandudno district: lateral equivalent of Loggerheads Limestone Formation, Warren, et al, 1984.
[Otherwise known as LLANDULAS LIMESTONE.] Of Llandudno district: lateral equivalent of Loggerheads Limestone Formation, Warren, et al, 1984.
[Formerly known as EGLWYSEG LIMESTONE.] Somerville, 1979
[Formerly known as GREAT ORME LIMESTONE FORMATION - Old code was ORL.] BGS, 1989
[Formerly known as LLANDULAS LIMESTONE.] Warren et al, 1984
[Formerly known as LLANDULAS LIMESTONE FORMATION - Old code was LNDL.] Term made obsolete [CNW; 22/10/2003].
[Formerly known as MIDDLE WHITE LIMESTONE - Old code was MDWL.] Morton, 1876-78.
[Formerly known as PENMON LIMESTONE FORMATION - Old code was PEL.] Term made obsolete [CNW; 23/10/2003].
[Formerly known as TREBORTH FORMATION - Old code was TREB.] Term made obsolete [CNW; 24/10/2003].
[Otherwise known as GOVAN BLACKBAND IRONSTONE.] Not Entered
[Otherwise known as IBROX BLACKBAND IRONSTONE.] Not Entered
[Formerly known as BRASSY MINE.] Not Entered
[Formerly known as CENTRAL GRAMPIAN DRIFT GROUP.] The Subgroup includes some units formerly assigned to the Central Grampian Drift Group.
[Formerly known as MANX GROUP UNDIVIDED AND AGNEASH GRITS.] Geological Survey, 1898; Lamplugh, 1903]
[Formerly known as MAUGHOLD BANDED GROUP AND SULBY SLUMP BRECCIA.] Simpson, 1963.
[Formerly known as LAXFORDIAN - Old code was LLX.] (IN PART RHICONICH GROUP): Orthogneisses and metatonalites formerly referred to as "Laxfordian" are now included in the Inchard Gneisses.
[Formerly known as RHICONICH GNEISSES.] Sheraton et al., 1973.
[Formerly known as RHICONICH GROUP - Old code was LLX.] Not Entered
[Formerly known as HAPPISBURGH CLAYS.] Lunkka, 1994.
[Formerly known as TRIMINGHAM CLAYS.] Hart, 1992.
[Formerly known as INTERGLACIAL GRAVEL BEACH DEPOSITS - Old code was also IGBD.] The explicit lithological qualifier was redundant for use in BGS systems.
[Otherwise known as INDEX LIMESTONE.] Informal synonym used in geographical/geological contexts where there is no potential for confusion with the (Pendleian) Index Limestone (Bed) of Scotland.
[Formerly known as INDEX LIMESTONE - Old code was also IL.] Unqualified name/code combination readily confused with similarly named bed in Scotland. Both Lexicon entries now carry area data. Index Limestone can still be used informally if there is no potential for confusion.
[Otherwise known as INDEX LIMESTONE.] Informal synonym used in geographical/geological contexts where there is no potential for confusion with the (Westphalian) Index Limestone (Bed) of England/Wales.
[Formerly known as COWGLEN LIMESTONE.] In type area within the Arden "basin".
[Formerly known as INDEX LIMESTONE - Old code was also ILS.] Unqualified name/code combination readily confused with similarly named bed in England/Wales. Both Lexicon entries now carry area data. Index Limestone can still be used informally if there is no potential for confusion.
[Formerly known as BRICKEARTH.] Not Entered
[Formerly known as GRAYS BRICKEARTH.] Not Entered
[Formerly known as ILFORD SILT FORMATION - Old code was also ILSI.] Not Entered
[Otherwise known as NONE.] Probable regional tectonism produces isolation, but comparable conglomerate bodies at simlar stratigraphical levels throughout the Northern Midland Valley.
[Formerly known as INCHMURRIN CONGLOMERATE FORMATION - Old code was also IMC.] Not Entered
[Otherwise known as LISMORE LIMESTONE.] Of southwest Grampians correlates with this formation
[Otherwise known as INCH MINE COAL.] Not Entered
[Formerly known as INCH MINE.] Not Entered
[Formerly known as INSHES FLAGSTONE.] Not Entered
[Formerly known as INGLETONIAN.] Not Entered
[Formerly known as INFERIOR OOLITE.] Townsend, J, 1813.
[Formerly known as INFERIOR OOLITE SERIES.] Woodward, H B, 1887.
[Formerly known as REDBOURNE GROUP - Old code was RDBN.] The lower part of this now Obsolete unit (Gaunt et al., 1992) comprised rocks that are better considered as components of the Inferior Oolite Group.
[Formerly known as UNDER OOLITE OR OOLYTE.] Smith, W, 1815.
[Formerly known as MIDDLE OLD RED SANDSTONE - Old code was MOR.] Not Entered
[Formerly known as CEMENTSTONE GROUP - Old code was CST.] Lower part of Calciferous Sandstone Measures plus top part of upper Old Red Sandstone. (MacGregor, 1960).
[Formerly known as CENTRAL GRAMPIAN DRIFT GROUP.] Subgroup includes some units formerly assigned to the Central Grampian Drift Group.
[Formerly known as INVERLEVEN FORMATION - Old code was also INVN.] Rank revised and lithological epithet introduced.
[Otherwise known as COLONSAY GROUP.] Possible correlative. Cf. Gibbons and Harris, 1994.
[Otherwise known as TORRIDONIAN.] Not Entered
[Otherwise known as INCH MINE ROCK.] Not Entered
[Formerly known as INCH MINE ROCK - Old code was also IR.] Not Entered
[Formerly known as GREAT OOLITE LIMESTONE.] Un-named part of the Great Oolite Limestone, equivalent to the Blisworth Limestone Formation, above the Kallirhynchia Sharpi Beds, identified as the Roade Member of Torrens (1967).
[Formerly known as HIGH HAUME LIMESTONE.] Rose and Dunham, 1977.
[Formerly known as IRELETH LIMESTONE.] Sedgwick, 1846.
[Formerly known as INISCARN SANDSTONE FORMATION.] (GSNI, 1983)
[Formerly known as LOWER CALCIFEROUS SANDSTONE.] (Egan, 1881)
[Formerly known as BYTHAM SANDS AND GRAVELS.] Hamblin and Moorlock, 1995.
[Formerly known as INGHAM SANDS AND GRAVELS - Old code was also ISAG.] Not Entered
[Formerly known as IRISH SEA DRIFT.] Not Entered
[Formerly known as WEST CUMBRIA DRIFT GROUP - Old code was WCDR.] Not Entered
[Formerly known as HOMOCERAS SUBGLOBOSUM MARINE BAND.] Not Entered
[Formerly known as GREY MARLS AND YELLOW SANDSTONES WITH CHERT.] Tate, 1865; Reid; 1971
[Formerly known as ISLAND MAGEE SILTS MEMBER - Old code was also ISMS.] Not Entered
[Formerly known as YELLOW SANDSTONES.] Hume 1897; Hancock, 1961
[Formerly known as YELLOW SANDSTONES AND GREY MARLS.] Manning, Robbie and Wilson, 1970
[Formerly known as PART OF THE 'SEDIMENTARY GROUP' OF THE LOWER OLD RED SANDSTONE.] In Central Ayrshire. Eyles et al., 1949.
[Formerly known as IRON TORS LIMESTONE.] Parkinson, 1950.
[Formerly known as JOHN O'GROATS SANDSTONE AND FLAGSTONE GROUP.] Not Entered
[Formerly known as JOHN O'GROATS SANDSTONE GROUP - Old code was also JOG.] Not Entered
[Formerly known as JOHNSTON COMPLEX.] Thorpe, R A, 1972.
[Formerly known as JOHNSTON DIORITE COMPLEX.] Bevins, R E. et al., 1995.
[Formerly known as JOHNSTON SERIES.] Strahan, A, et al., 1914.
[Otherwise known as CHIRDON NO.2 LIMESTONE.] Not Entered
[Formerly known as CARBONIFEROUS LIMESTONE.] (Termed 'Carboniferous Limestone' on 1929 edition of Wolverhampton Geological Sheet).
[Formerly known as RED AND GREY LIMESTONES.] (Recognised as the 'Red and Grey Limestones' (Group 2) by Prestwich, J, 1840 and Murchison, R I, 1839. Modified and interpreted by Whitehead, T H, et al, 1928. Wolverhampton Sheet Memoir).
[Otherwise known as ISLAY QUARTZITE.] Not Entered
[Formerly known as JURA QUARTZITE - Old code was DBJQ.] Not Entered
[Formerly known as JURA SLATE(S) - Old code was DBJS.] Not Entered
[Otherwise known as OXFORD LIMESTONE.] ? Equivalent of the Oxford Limestone of Northumberland.
[Formerly known as JEW LIMESTONE - Old code was also JWL.] Not Entered
[Otherwise known as BANK COAL.] Glasgow mining terminology (sometimes "Bank Coal" used).
[Formerly known as KILLEARN FORMATION - Old code was also KARN.] Not Entered
[Otherwise known as GARC GARW COAL (SOUTH WALES).] Correlated unit.
[Otherwise known as KNGC KING COAL (NORTH STAFFORDSHIRE).] Correlated unit.
[Formerly known as KIRKBECK MEMBER - Old code was also KBF.] The Formation was erroneously downgraded to Member status prior to being made Obsolete. See related discussion under Supplementary Information.
[Otherwise known as CLATTERING BAND.] Not Entered
[Formerly known as BRECCIA OF KENILWORTH,LOWER.] Not Entered
[Formerly known as BRECCIA OF KENILWORTH,UPPER.] Not Entered
[Otherwise known as GLENVALE SANDSTONE FORMATION.] Not Entered
[Formerly known as KELLYBURN SANDSTONE FORMATION - Old code was also KBS.] Inserted space into name.
[Formerly known as SEAMILL SANDSTONE FORMATION - Old code was SEA.] Not Entered
[Otherwise known as NITHSDALE KAMES.] Huddart (1999).
[Formerly known as COASTAL DEPOSITS OF BANFFSHIRE.] Not Entered
[Formerly known as OAKTREE CLAY.] William Smith, 1817.
[Formerly known as OAKTREE SOIL.] William Smith, 1815.
[Formerly known as KNUCKLAS CASTLE BEDS (OBSOLETE CODE: USE KCA) - Old code was KCB.] Not Entered
[Formerly known as KIRKTON CEMENTSTONES MEMBER PLUS KIRTON CEMENT SHALE.] Ashton, 1975
[Formerly known as KIRTON BEDS (PART).] Ussher et al., 1890.
[Formerly known as KIRTON CEMENTSTONES - Old code was also KCM.] Gaunt et al. 1992.
[Formerly known as KIRTON CEMENTSTONES AND KIRTON [CEMENT] SHALE.] Kent, 1966.
[Formerly known as KIRTON CEMENTSTONES MEMBER.] Gaunt et al., 1992.
[Formerly known as KIRTON CEMENTSTONES MEMBER PLUS KIRTON SHALE MEMBER.] Ashton, 1980.
[Formerly known as CORAL KNOLL (IN KIRTON CEMENTSTONES).] Term used on the Kingston upon Hull (80) Sheet.
[Formerly known as CORALLINE KNOLLS OF PATCH-REEF TYPE.] Knoll reefs, reefs, reef knolls of various authors. Gaunt et al. 1992.
[Formerly known as BUNTER PEBBLE BEDS - Old code was BNP.] Mitchell and others, 1962.
[Formerly known as KIDDERMINSTER CONGLOMERATE FORMATION.] Smith, and others, 1974.
[Formerly known as KILDRESS BEDS (PART).] Not Entered
[Formerly known as KILDRESS LIMESTONE.] Not Entered
[Otherwise known as ALVELEY MEMBER.] The Alveley Member of the Salop Formation contains rocks formerly included in the upper part of the Keele Formation, Powell et al, 1999.
[Otherwise known as HALESOWEN FORMATION.] The lower part of the former Keele Formation is now regarded as a red lithofacies of the Halesowen Formation, Powell et al, 1999.
[Formerly known as KEELE BEDS.] Not Entered
[Formerly known as KEELE FORMATION (OBSOLETE CODE: USE KE) - Old code was KEG.] Not Entered
[Formerly known as KEELE GROUP.] Not Entered
[Formerly known as KEELE SANDSTONE SERIES.] Not Entered
[Formerly known as KESSOCK BRIDGE FORMATION - Old code was also KEBR.] Not Entered
[Otherwise known as MAPPLEWELL COAL.] In part of the Barnsley Sheet area.
[Formerly known as KELVIN FORMATION - Old code was also KELV.] Not Entered
[Formerly known as MORAINIC DRIFT.] Not Entered
[Formerly known as LONAN AND NIARBYL FLAGS.] Geological Survey, 1898; Lamplugh, 1903; Simpson, 1963.
[Formerly known as ESSEX WHITE BALLAST.] Not Entered
[Formerly known as GLACIAL SAND AND GRAVEL - Old code was GSG.] Not Entered
[Formerly known as KESGRAVE FORMATION (OBSOLETE CODE: USE KES) - Old code was KESF.] Not Entered
[Formerly known as KESGRAVE SANDS AND GRAVELS (OBSOLETE NAME AND CODE: USE KES) - Old code was KGSG.] Not Entered
[Formerly known as LORNE SEDIMENTARY 'SERIES' - Old code was LOSS.] Sedimentary rocks of Lower Old Red Sandstone age
[Formerly known as KINDERSCOUT GRIT GROUP - Old code was also KG.] See Revisions to the Unit's Definition.
[Formerly known as KINDERSCOUT GRIT SERIES.] Not Entered
[Formerly known as KESGRAVE FORMATION.] Not Entered
[Formerly known as KESGRAVE SANDS AND GRAVELS.] Not Entered
[Otherwise known as KING MINE COAL.] Not Entered
[Formerly known as KING MINE.] Not Entered
[Otherwise known as REPLACED BY KESGRAVR FORMATION [KES].] Not Entered
[Formerly known as PART OF: BROCKRAM - Old code was BK.] Not Entered
[Otherwise known as BANTON MAIN COAL.] Not Entered
[Otherwise known as LOWER KNOTT COAL.] Not Entered
[Otherwise known as SHALE COAL.] Not Entered
[Formerly known as GLACIAL SAND AND GRAVEL.] Not Entered
[Formerly known as KIPPET HILLS GRAVELS - Old code was also KHG.] Not Entered
[Formerly known as GLACIOFLUVIAL SAND AND GRAVEL.] Connell, Edwards and Hall. 1982; Connell and Hall. 1987; Hall and Connell, 1991; Hall and Jarvis. 1993.
[Formerly known as KIRKHILL CHURCH SAND FORMATION.] Merritt, Connell and Bridgland. 2000.
[Formerly known as KIRKHILL LOWER BURIED SOIL.] Connell and Hall, 1987; Hall and Connell, 1991; Hall and Jarvis, 1993.
[Formerly known as KIRKHILL LOWER PALAEOSOL.] Connell, Hall and Romans, 1984.
[Formerly known as KIRKHILL PALAEOSOL.] of the Kirkhill Formation of Sutherland, 1999.
[Formerly known as KINGSHOUSE BRECCIA MEMBER - Old code was also KHOB.] Not Entered
[Formerly known as GIBBET (CONGLOMERATE) HILL GROUP.] The new name is derived from the village of Kenilworth, Warwickshire and was defined by Old et al., 1987. It includes the 'Kenilworth Breccia Group' and the 'Gibbet (Conglomerate) Hill Group' as defined by Shotton (1929).
[Formerly known as KENILWORTH BRECCIA GROUP.] The new name is derived from the village of Kenilworth, Warwickshire and was defined by Old et al., 1987. It includes the 'Kenilworth Breccia Group' and the 'Gibbet (Conglomerate) Hill Group' as defined by Shotton (1929).
[Formerly known as PART OF ARDWELL BRIDGE LAVAS (INFORMAL).] Mac Gregor and Roberts 1963
[Formerly known as BASAL CEMENTSTONES.] Craig, 1956; Deegan, 1970
[Formerly known as KIRKBEAN CEMENTSTONE FORMATION - Old code was also KICM.] Not Entered
[Formerly known as KIRKBEAN MEMBER - Old code was also KICM.] Not Entered
[Otherwise known as EQUIVALENT TO BEDMINSTER GREAT COAL [BEGT].] Not Entered
[Otherwise known as BANKNOCK MAIN COAL.] Not Entered
[Formerly known as KILDONAN PSAMMITE.] Not Entered
[Formerly known as KILMARONOCK FORMATION - Old code was also KILK.] Not Entered
[Formerly known as KILCHRIST FORMATION - Old code was also KILL.] Not Entered
[Formerly known as PART OF STRATH SUARDAL AND BEINN AN DUBHAICH FORMATION.] Not Entered
[Formerly known as DINGLE BEDS (LOWER OLD RED SANDSTONE).] Geological Survey of Northern Ireland, 1882.
[Formerly known as FINTONA GROUP - Old code was FIN.] Now restricted to Devonian sediments. Geological Survey of Northern Ireland, 1982.
[Formerly known as (KINGSTEPS) NAIRN SANDSTONES.] Miles, 1968, Table 1.
[Formerly known as NAIRN SANDSTONE.] Traquair 1905, p547.
[Formerly known as NAIRN SANDSTONE FORMATION - Old code was NSA.] Not Entered
[Formerly known as NAIRN SANDSTONES.] Westoll 1951, p11.
[Formerly known as HIGH HAUME MUDSTONE.] (Rose and Dunham, 1977)
[Otherwise known as GRENOSIDE ROCK.] Grenoside Rock erroneously identified on former Huddersfield Sheet
[Formerly known as ABINGTON FORMATION.] The Abington Formation of Hepworth et al (1982) is a redundant synonym of the Kirkcolm Formation (Floyd, 1996).
[Formerly known as AFTON FORMATION - Old code was AFTN.] Afton Formation is a redundant junior synonym of Kirkcolm Formation (Floyd, 1996).
[Formerly known as BUTT HILL MEMBER.] The Butt Hill Member (Hepworth et al, 1982) is a local facies of the Kirkcolm Formation (Floyd, 1996).
[Formerly known as CONRIG FORMATION.] The Conrig Formation of Hepworth et al (1982) is a local facies of the Kirkcolm Formation (Floyd, 1996).
[Formerly known as KIRKCOLM GROUP.] Not Entered
[Formerly known as LOCHRYAN FORMATION (OBSOLETE NAME AND CODE: USE KKF) - Old code was LRYN.] Not Entered
[Formerly known as KIRK HILL CONGLOMERATE.] of Rolfe (1960)
[Formerly known as QUARTZITE-CONGLOMERATE.] of Read (1927).
[Otherwise known as HAWICK GROUP UNDIVIDED.] Webb et al., 1993, White et al., 1991
[Formerly known as BUCKHOLM FORMATION.] These beds formed part of the Buckholm Formation of the Gala Group, as described by Kassi and Weir, 1993.
[Formerly known as HAWICK GROUP.] Formerly within the undivided Hawick Group: Webb et al., 1993, White et al., 1991.
[Formerly known as QUEENSBURY FORMATION.] Part of these beds were formerly included in the Queensbury Formation of Webb et al., 1993.
[Formerly known as QUEENSBURY GRITS.] Part of these beds were formerly included in the Queensbury Grits of Peach and Horne, 1899.
[Formerly known as KINNEIL KERSE BEDS.] Not Entered
[Formerly known as KELLAWAYS BEDS - Old code was also KLB.] Not Entered
[Formerly known as KELLAWAYS BEDS FORMATION.] Gaunt et al., 1992
[Formerly known as KELLAWAYS FORMATION PLUS CAYTON CLAY FORMATION.] IN areas excluding the Cleveland Basin (Page, 1989).
[Formerly known as KELLAWAYS ROCK PLUS KELLAWAYS CLAY.] Not Entered
[Formerly known as KELLAWAYS CLAY.] Not Entered
[Formerly known as KELLAWAYS CLAY MEMBER PLUS CAYTON CLAY FORMATION.] (In areas excluding the Cleveland Basin) of Page, 1989; the latter unit is the smooth basal unit of the Kellaways Clay as defined herein.
[Formerly known as KINLOCHLAGGAN QUARTZITE - Old code was DAKQ.] Not Entered
[Otherwise known as LISTERI MARINE BAND.] National Standard name.
[Formerly known as KILBIRNIE MUDSTONE FORMATION - Old code was also KLMD.] Rank reduced to Member.
[Formerly known as LIMESTONE COAL GROUP.] In part: the Kilbirnie Mudstone Member was formerly the lower part of the Limestone Coal Group of North Ayrshire.
[Formerly known as KILN BANK MEMBER - Old code was also KLN.] Lithological epithet added [D Millward] 06/03/2003.
[Formerly known as KELLAWAYS (OR KELLAWAY) ROCK.] of early authors: see Arkell, 1933
[Formerly known as KELLAWAYS (OR KELLAWAY) STONE.] of early authors: see Arkell, 1933
[Formerly known as KELLAWAYS ROCK - Old code was KLR.] Townsend, J, 1813.
[Formerly known as KELLAWAYS SAND.] Gaunt et al., 1992.
[Formerly known as KELLAWAYS SAND MEMBER PLUS KELLAWAYS ROCK MEMBER.] Gaunt et al., 1992.
[Formerly known as KELLAWAYS SAND PLUS CAVE ROCK MEMBER.] Page, 1989.
[Formerly known as KELLAWAYS SAND PLUS KELLAWAYS ROCK.] Not Entered
[Formerly known as KILNSEY LIMESTONE - Old code was also KLSL.] Not Entered
[Otherwise known as CREETOWN GRANITE.] Not Entered
[Formerly known as KENDAL GROUP.] Not Entered
[Formerly known as KIRKBY MOOR FLAG FORMATION - Old code was also KMF.] Not Entered
[Formerly known as KIRKBY MOOR FLAGS.] Not Entered
[Formerly known as SCOUT HILL FLAGS - Old code was SCH.] Shaw, 1971.
[Formerly known as UNDERBARROW FLAG FORMATION - Old code was UND.] Not Entered
[Formerly known as UPPER SLATES OF KENDAL.] Not Entered
[Formerly known as KIRKHAM FORMATION.] sensu Thomas, G S P, in Bowen, 1999, p.95.
[Formerly known as KIRKMAIDEN BEDS.] Not Entered
[Formerly known as KENTMERE FORMATION.] Part of: Soper and Numan, 1974.
[Formerly known as KENTMERE PIKE FORMATION - Old code was also KMR.] Lithological epithet re-introduced [D Millward] 05/03/2003.
[Formerly known as KENTMERE PIKE RHYOLITES.] Unit No. 6 of Mitchell, G H, 1929
[Otherwise known as BERESFORD SEAM.] At Tilmanstone and Snowdown collieries.
[Otherwise known as 'F' SEAM.] At Betteshanger Colliery
[Otherwise known as MILLYARD SEAM.] At Snowdown Colliery
[Otherwise known as 'H' SEAM.] At Betteshanger Colliery
[Otherwise known as NO.5 SEAM.] At Chislet Colliery
[Formerly known as KILLEN BURN FISH BED.] Not Entered
[Formerly known as BASAL GRAMPIAN DIVISION.] Not Entered
[Formerly known as GRANTOWN FORMATION.] Not Entered
[Formerly known as ORD BAN SUBGROUP.] Kincraig Limestone and Quartzite Succession.
[Formerly known as BLOWN SAND.] British Geological Survey
[Formerly known as KNOCKGARDNER FORMATION.] Cocks and Toghill, 1973.
[Formerly known as KNOCKGARDNER SHALES - Old code was also KNG.] Lapworth, 1882.
[Formerly known as KNOCK HEAD GRIT.] (Still within Whitehills Grit Formation. Stephenson, D, et al, 1993).
[Formerly known as UPPERMOST PART OF WHITEHILLS GROUP.] (Read, H H, 1923, p.52).
[Otherwise known as BATHAMPTON DOWN MEMBER.] One of 5 members recognized by Campbell et al., 1999.
[Otherwise known as BLEADON MEMBER.] One of 5 members recognized by Campbell et al., 1999.
[Otherwise known as KENN COURT MEMBER.] One of 5 members recognized by Campbell et al., 1999.
[Otherwise known as KENNPIER MEMBER.] One of 5 members recognized by Campbell et al., 1999.
[Otherwise known as NIGHTINGALE MEMBER.] One of 5 members recognized by Campbell et al., 1999.
[Formerly known as BURTHEL BEDS.] Outcrops of this unit were previously shown incorrectly as Burthel Beds on 1:50K sheet 264.
[Formerly known as KENN GRAVELS.] Kellaway and Welch, 1993.
[Formerly known as SAND AND GRAVEL OF UNKNOWN ORIGIN.] Whittaker and Green, 1983. 1:50 000 Sheet 279.
[Formerly known as KNOCK PIKE FORMATION - Old code was also KNPK.] BGS Lexicon entry lacked lithology epithet.
[Formerly known as KNOWLE SANDSTONES - Old code was also KNS.] Knowle Sandstone of Edmonds, and others, 1968 also included "Creedy Park Sandstone" recognised in Exeter district).
[Formerly known as BUDDON SANDS.] Not Entered
[Formerly known as KINGSTON BEDS.] Not Entered
[Formerly known as LOWER MOTTLED SANDSTONE.] Not Entered
[Formerly known as KNIGHTON SAND AND GRAVEL - Old code was also KNSG.] Not Entered
[Formerly known as BURNTISLAND LAVAS.] Former local and informal name.
[Formerly known as CORNSTONE BEDS - Old code was CRNI.] In Stirlingshire.
[Formerly known as CORNSTONE FORMATION.] Not Entered
[Formerly known as POWMILL FORMATION.] In west Fife.
[Formerly known as KNORRI CLAYS - Old code was also KNY.] Not Entered
[Otherwise known as AMALIAE MARINE BAND.] Ransbottom and others, 1978.
[Formerly known as CHLORITIC SANDS AND SANDSTONES.] in part- Tate, 1865; Hume 1897
[Formerly known as KILCOAN SANDS MEMBER.] Not Entered
[Formerly known as SENONIAN GREENSANDS.] Manning, Robbie and Wilson, 1970
[Formerly known as UPPER GLAUCONITIC BEDS.] in part -- Hancock, 1961
[Formerly known as UPPER HIBERNIAN GREENSANDS.] Reid, 1971
[Formerly known as KNOX PULPIT FORMATION - Old code was also KPF.] Name expanded from Knox Pulpit Formation to Knox Pulpit Sandstone Formation.
[Formerly known as FLOOD PLAIN GRAVEL - Old code was FPGR.] Not Entered
[Formerly known as KEMPTON PARK GRAVEL.] Not Entered
[Formerly known as KEMPTON PARK MEMBER.] Bowen, 1999.
[Formerly known as UPPER FLOODPLAIN TERRACE.] Dewey and Bromehead, 1921.
[Otherwise known as KEITH-PORTSOY GRANITE.] The term Keith-Portsoy syn-tectonic Granitic Suite was introduced in error and should not be used. The term Keith -Portsoy Granite has precedence.
[Formerly known as KILRANNY CONGLOMERATE - Old code was also KRC.] Williams, 1962.
[Formerly known as KIRKTON BEDS.] (Hepworth, 1981)
[Formerly known as KIRKHAM MUDSTONE FORMATION - Old code was also KRM.] Not Entered
[Formerly known as COVENTRY SANDSTONE (MIDDLE PART).] Not Entered
[Formerly known as FOURTH TERRACE (RIVER SEVERN).] Not Entered
[Formerly known as KIDDERMINSTER TERRACE.] (Wills, L J, 1958).
[Formerly known as KIDDERMINSTER TERRACE DEPOSITS (RIVER SEVERN) - Old code was also KRT.] Not Entered
[Formerly known as KIRKWOOD FORMATION.] Formerly 'KRF'
[Formerly known as KERSDOWN BEDS.] Webby and Thomas, 1965.
[Formerly known as KERSDOWN CHERT FORMATION - Old code was also KSDC.] Not Entered
[Formerly known as MIDDLE BAMPTON CHERTS.] Thomas, 1962.
[Formerly known as KIRKSTEAD MEMBER.] Bowen, 1999.
[Otherwise known as KERSHAW MINE COAL.] Not Entered
[Formerly known as KERSHAW MINE.] Not Entered
[Formerly known as KINCURDIE SILTS FORMATION.] Former incorrect spelling of place name.
[Formerly known as BLACK SLATES OF SKIDDAW.] Ward, 1876
[Formerly known as BLAKEFELL "MUDSTONE".] Simpson, 1967.
[Formerly known as KIRK STILE SLATES.] Eastwood et al, 1933; Jackson, 1978
[Formerly known as KIRKSTILE SLATES.] Dixon, 1925; Simpson, 1967.
[Formerly known as MOSSER SLATES.] Eastwood et al 1933; Simpson, 1967.
[Formerly known as MOSSER STRIPED SLATES.] Dixon, 1925
[Formerly known as MOSSER-KIRKSTILE SLATES.] Rose, 1955; Jackson, 1961.
[Formerly known as SUNDERLAND SLATES.] Simpson, 1967.
[Formerly known as 'MULATTO'.] a collective term for the greensands, conglomerates and marls beneath the White Limestone (Whitehurst, 1786);
[Formerly known as GREENSANDS.] Portlock 1843
[Formerly known as HIBERNIAN GREENSAND.] Tate, 1865
[Formerly known as HIBERNIAN GREENSANDS (PART).] Hancock, 1961
[Formerly known as HIBERNIAN GTREENSAND FORMATION.] BGS publications and Fletcher, 1967
[Formerly known as UPPER AND LOWER HIBERNIAN GREENSANDS.] Reid, 1971
[Otherwise known as LISTERI MARINE BAND.] Hard Bed Marine Band is a local [Yorkshire Coalfield] name for the Listeri Marine Band.
[Formerly known as DRYBROOK LIMESTONE.] Kellaway and Welch, 1955.
[Formerly known as HUNTS BAY GROUP.] Wilson, et al., 1990.
[Formerly known as HUNTS BAY OOLITE FORMATION - Old code was also HBO.] Not Entered
[Formerly known as HUNTS BAY OOLITE GROUP - Old code was also HBO.] Not Entered
[Formerly known as HAFFIELD CONGLOMERATE.] Phillips, 1848.
[Otherwise known as HIGHER BENT MINE COAL.] Not Entered
[Formerly known as HIGHER BENT MINE.] Not Entered
[Formerly known as RED BEDS.] eg Rickards, R B, 1970
[Formerly known as HIGHLAND BORDER SERIES.] Barrow, 1901.
[Formerly known as HIGHLAND BOUNDARY COMPLEX - Old code was also HBX.] Henderson and Fortey, 1982; also used on BGS 1:50 000 Sheets 30W (Greenock), 38W (Ben Lomond) and Arran special sheet.
[Formerly known as SHINETON SHALES - Old code was SHSH.] Not Entered
[Otherwise known as GOURDIE CONGLOMERATE FORMATION.] Not Entered
[Formerly known as HATTON CONGLOMERATE FORMATION - Old code was also HCF.] Not Entered
[Otherwise known as NARNELLS GRIT.] Lapworth and Watts, 1910.
[Otherwise known as HIGHER CHAMBER MINE COAL.] Not Entered
[Formerly known as HIGHER CHAMBER MINE.] Not Entered
[Formerly known as HOLYWELL CHALK MEMBER - Old code was also HCK.] Under this name it did not include the Plenus Marls
[Formerly known as LOWER AND MIDDLE HOLYWELL BEDS.] (Of Mortimer, 1986).
[Otherwise known as WICKERSLEY ROCK.] Supposed correlative (qv).
[Formerly known as UPPER DEVONIAN PURPLE AND GREEN SLATE.] Reid, C, et al, 1910.
[Otherwise known as ETRURIA FORMATION.] See Powell et al, 1999.
[Otherwise known as GANISTER COAL.] Name used in some parts of South Yorkshire.
[Formerly known as HEADLEY FORMATION - Old code was also HDY.] Not Entered
[Formerly known as HEADON BEDS - Old code was also HE.] Not Entered
[Formerly known as FIFTH (BUSHLEY GREEN LOWER PART) TERRACE OF THE SEVERN.] Worssam et al, 1989.
[Formerly known as KINDERSCOUT GRIT GROUP.] Formerly referred to as Kinderscout Grit Group of Bradford (Stephens, 1953), unsuitable as there is a sandstone already called Kinderscout Grit, and the name has also been used for the Stage.
[Formerly known as HEYSHAM HARBOUR SANDSTONE FORMATION - Old code was also HEH.] Treated as a Formation on 1:50000 BGS Sheet 59 (Lancaster); now reverts to Bed status.
[Otherwise known as WARP.] As recorded in historical borehole logs and in other written accounts.
[Formerly known as HEMINGBROUGH GLACIAL LAKE FORMATION - Old code was also HEM.] Initial name, subsequently revised before extensive use.
[Formerly known as SAND OF THE 25 FOOT DRIFT.] Part of the Formation was placed in this category. British Geological Survey, 1973.
[Formerly known as SILT AND CLAY OF THE 25 FOOT DRIFT.] British Geological Survey, 1973.
[Formerly known as HEMSWORTH DIVISION.] Not Entered
[Otherwise known as WARMDEN SANDSTONE.] Probable correlative in the Accrington area.
[Formerly known as AMBASTON MEMBER.] of the Derwent (Bowen, 1999).
[Formerly known as HEMINGTON MEMBER.] Bowen, 1999.
[Formerly known as HEMINGTON TERRACE DEPOSITS - Old code was also HETD.] eg Carney et al, 2002.
[Formerly known as BEARSTONE SANDSTONES - Old code was BSS.] Now subsumed into the Helsby Sandstone Formation.
[Formerly known as KEUPER SANDSTONE, LOWER - Old code was LKS.] Not Entered
[Otherwise known as MANGANESE GROUP.] Matley and Wilson, 1946.
[Otherwise known as TRWYN Y FULFRAN FORMATION.] Lateral equivalent on the Pwllheli (134) sheet.
[Formerly known as HAFOTTY GROUP.] Andrew, 1910.
[Formerly known as GROUPING OF HARFORD SANDS.] Buckman, J, 1887.
[Formerly known as HARFORD SANDS MEMBER.] Mudge, D C, 1978a.
[Formerly known as NAUNTON CLAY.] Richardson, L, 1929, p.39.
[Formerly known as SNOWSHILL CLAY.] Buckman, J, 1897.
[Formerly known as STANWAY HILL FORMATION.] Parsons, C F, 1980.
[Formerly known as TILESTONE.] Buckman, J, 1901.
[Formerly known as HIGHFIELD FARM LIMESTONE - Old code was also HFFL.] Not Entered
[Formerly known as HAGLEY ASH - Old code was also HGA.] Not Entered
[Formerly known as HANGED MAN MEMBER (FORMER FORMATION) - Old code was also HGF.] Not Entered
[Formerly known as HOGHILL GRAVEL FORMATION - Old code was also HGGR.] Not Entered
[Otherwise known as HANGMAN SANDSTONE FORMATION.] Not Entered
[Formerly known as HANGMAN GRITS - Old code was HAG.] Not Entered
[Otherwise known as STAINMORE FORMATION.] Hensingham Group might be obsolete and replaced by Stainmore Formation.
[Formerly known as BEDS INCLUDED IN 'MILLSTONE GRIT'.] From Sheets 28 (Whitehaven) and 23 (Cockermouth).
[Formerly known as HALDON GRAVEL - Old code was also HGR.] Unit given formal rank of Formation on the recommendation of RJO Hamblin.
[Formerly known as HAGLEY SHALES - Old code was also HGSH.] Not Entered
[Formerly known as HADDISCOE SANDS AND GRAVELS - Old code was also HGV.] Arthurton et al., 1994; Moorlock et al., 2000.
[Formerly known as VALLEY FLANK SANDS AND GRAVELS.] Bridge and Hopson, 1985.
[Formerly known as HAGLEY ASH - Old code was HGA.] Not Entered
[Formerly known as HAGLEY VOLCANIC GROUP - Old code was HVG.] Not Entered
[Otherwise known as KENT'S THICK COAL.] Name used in parts of Yorkshire.
[Otherwise known as MAPPLEWELL COAL.] Name used in parts of Yorkshire.
[Formerly known as HOLYHEAD QUARTZITE.] Greenly, 1919.
[Formerly known as HILL HOUSE FLAGS - Old code was also HHF.] The Unit is given "informal" Member status pending fuller study of the components of the Upper Comley Sandstone Formation.
[Formerly known as HILL HOUSE GRITS - Old code was also HHGT.] The Unit is given "informal" Member status pending fuller study of the components of the Upper Comley Sandstone Formation.
[Otherwise known as PETERSHILL LIMESTONE.] Computer Code PTLS
[Formerly known as CRAIGBURN LIMESTONE - Old code was CNLS.] Not Entered
[Formerly known as PRODUCTUS GIGANTEUS LIMESTONE.] Not Entered
[Otherwise known as HELL HOLE MINE COAL.] Not Entered
[Formerly known as HELL HOLE MINE.] Not Entered
[Formerly known as HIGH HAUME RHYOLITE - Old code was also HHR.] Rose and Dunham, 1977
[Formerly known as HIGH HAUME VOLCANIC FORMATION - Old code was also HHR.] Change of lithological epithet [D Millward] 03/03/2003.
[Formerly known as HAM HILL STONE - Old code was also HHS.] Woodward, 1887.
[Formerly known as HILL HOUSE SHALES - Old code was also HHSH.] The Unit is given "informal" Member status pending fuller study of the components of the Upper Comley Sandstone Formation.
[Formerly known as HARRATH TUFFS AND LAVAS.] Mathieson, N A, 1987
[Formerly known as RHYOLITIC SERIES.] Green, J F N, 1913
[Formerly known as HOLT HEATH TERRACE DEPOSITS - Old code was also HHTD.] Not Entered
[Otherwise known as UPPER LINCOLNSHIRE LIMESTONE MEMBER.] Hibaldstow Limestone is a local name for the Upper Lincolnshire Limestone Member.
[Formerly known as HIBALDSTOW LIMESTONE MEMBER - Old code was also HIL.] Member status revoked; reverts to informal usage (recommended by M G Sumbler, 25/09/2005).
[Formerly known as HIBALDSTOW LIMESTONES - Old code was also HIL.] Ussher et al. 1990
[Formerly known as HIBALDSTOW LIMESTONES MEMBER.] Gaunt, et al. 1992
[Formerly known as HIBALDSTOW OOLITE.] Not Entered
[Otherwise known as INDEX LIMESTONE.] Supposed correlative (qv).
[Otherwise known as LADY COAL.] Not Entered
[Formerly known as HIRNANT LIMESTONE - Old code was also HIR.] Not Entered
[Formerly known as HIND SANDSTONE MEMBER - Old code was also HIS.] Rank reduced to Bed.
[Formerly known as NEWTON FELLS GRIT - Old code was NFG.] Not Entered
[Formerly known as HOMOCERAS HENKEI MARINE BAND.] Not Entered
[Formerly known as VAUGHANS D1 ZONE.] Approximately Vaughans D1 Zone (Avonian)
[Otherwise known as WATLING SHALES.] Blake, J F, 1890.
[Formerly known as HELMETH GRITS.] Lapworth, 1904; 1910.
[Formerly known as HALLAIG SANDSTONE.] Not Entered
[Formerly known as HOLEHOUSE GILL FORMATION - Old code was also HLH.] Lithological epithet added [D Millward] 03/03/2003.
[Formerly known as LOWER BASSY MARINE BAND.] Not Entered
[Formerly known as HELLVELLYN FORMATION - Old code was also HLV.] Lithological epithet reintroduced [D Millward] 06/03/2003.
[Formerly known as HELWELLYN TUFF MEMBER - Old code was also HLV.] Unit re-ranked and lithological epithet removed.
[Otherwise known as ARDEN SANDSTONE.] Probable lateral equivalent in central Midlands and Worcester Basin.
[Otherwise known as DANE HILLS SANDSTONE MEMBER.] Probable lateral equivalent in Leicestershire.
[Formerly known as HOLLYGATE LANE SKERRIES.] Not Entered
[Formerly known as HOLLYGATE SKERRIES.] Elliott, 1961.
[Formerly known as HOLLYGATE SKERRY.] Not Entered
[Formerly known as HOLLYGATE SKERRY MEMBER.] Warrington, et al., 1980.
[Formerly known as HAMPEN MARLY BEDS.] Arkell, W J, 1933.
[Formerly known as HAMPEN MARLY FORMATION.] McKerrow, W S and Kennedy, W J, 1973.
[Formerly known as MARLY BEDS.] Woodward, H B, 1894.
[Formerly known as HOLM FARM LIMESTONE - Old code was also HMFL.] Plus limestones X and Y all of Brandon et al. (1990).
[Otherwise known as RHINOG FORMATION.] Lateral equivalent on the Harlech Sheet, 135.
[Formerly known as HELL'S MOUTH GRITS - Old code was also HMG.] Nicholas, 1915.
[Otherwise known as BENSHAM COAL.] Not Entered
[Otherwise known as E.] British Coal Index
[Otherwise known as KEXBOROUGH ROCK.] Probable equivalent in areas farther south.
[Formerly known as HIGH MAINS SANDSTONE - Old code was also HMS.] Not Entered
[Otherwise known as CUTTIES HILLOCK SANDSTONE.] Westoll, 1951.
[Otherwise known as HOPEMAN-CUMMINGSTOWN SANDSTONE.] Westoll, 1951.
[Formerly known as SANDSTONES OF CUTTIES HILLOCK (QUARRY WOOD).] Peacock, et al. 1968.
[Formerly known as SANDSTONES OF HOPEMAN.] Peacock, et al. 1968.
[Formerly known as UPPER BOULDER CLAY.] Equates with SOME of the deposits assigned to the "Upper Boulder Clay" by Eastwood et al (1931) and Trotter et al (1937).
[Otherwise known as FOXHOLES ROCK.] Not Entered
[Formerly known as HUNCLIFF [FOXHOLES] ROCK - Old code was also HNC.] Not Entered
[Formerly known as HORTON FLAGS.] King and Wilcockson, 1934.
[Formerly known as HANGING STONE TUFF MEMBER - Old code was also HNG.] Formerly inappropriately ranked in the BGS Lexicon.
[Otherwise known as BRICKWORKS MARINE BAND.] Local name in the Cumberland Coalfield area, possibly still in use to some extent.
[Otherwise known as FIRST SMALLEY MARINE BAND.] Local name in the Nottinghamshire Coalfield and parts of Derbyshire, possibly still in use to some extent.
[Otherwise known as LOWER FOOT MARINE BAND.] Local name in part(s) of the Lancashire Coalfield and North Staffordshire, possibly still in use to some extent.
[Otherwise known as M2 MARINE BAND.] Possible correlative local name in part(s) of the South Wales Coalfield, possibly still in use to some extent.
[Otherwise known as MIDDLE BAND MARINE BAND.] Local name in part(s) of the Yorkshire Coalfield and northern Derbyshire, possibly still in use to some extent.
[Formerly known as BRICKWORKS MARINE BAND - Old code was BWKMB.] Local name in the Cumberland Coalfield area, possibly still in use to some extent.
[Formerly known as FIRST SMALLEY MARINE BAND - Old code was FSMMB.] Local name in the Nottinghamshire Coalfield and parts of Derbyshire, possibly still in use to some extent.
[Formerly known as LOWER FOOT MARINE BAND - Old code was LFTMB.] Local name in part(s) of the Lancashire Coalfield and North Staffordshire, possibly still in use to some extent.
[Formerly known as M2 MARINE BAND - Old code was M2MB.] Possible correlative local name in part(s) of the South Wales Coalfield, possibly still in use to some extent.
[Formerly known as MIDDLE BAND MARINE BAND - Old code was MBDMB.] Local name in part(s) of the Yorkshire Coalfield and northern Derbyshire, possibly still in use to some extent.
[Otherwise known as HORDEN MEMBER.] Of the East Durham Formation (Thomas, 1999).
[Formerly known as DURHAM UPPER TILL.] Of Smith, 1994.
[Formerly known as HOLLOWBROOK FORMATION - Old code was also HOB.] Not Entered
[Formerly known as TRENTISHOE GRITS.] In part only - the rocks of the Hollowbrook Member were formerly included as part of the Trentishoe Grits of Evans (1922) and Lane (1965).
[Formerly known as BYTH GRAVEL.] Hall et al, 1995.
[Formerly known as HOWE MEMBER.] of the Kirkhill Formation of Sutherland, 1999.
[Formerly known as HOWE OF BYTH GRAVEL FORMATION.] Merritt et al, 2000.
[Formerly known as HORRACE FLAGS.] Used on 1:25,000 Special Sheet SD27 (Dalton in Furness).
[Formerly known as MAIN TERRACE.] (Wills, 1938).
[Formerly known as MAIN TERRACE DEPOSITS [RIVER SEVERN] - Old code was MNT.] Not Entered
[Otherwise known as HOOKES VEIN.] Not Entered
[Formerly known as HOOKES VEIN.] Not Entered
[Formerly known as KEUPER SANDSTONE, LOWER - Old code was LKS.] Lower Keuper Sandstone below the Waterstones (Hull,1869).
[Formerly known as WORSTON SHALES - Old code was WRSH.] The Hodder Mudstone Formation was part of the former Worston Shale Group.
[Formerly known as OIL SHALE GROUP, UPPER - Old code was URO.] Not Entered
[Formerly known as HOPE SHALES - Old code was also HOSH.] Not Entered
[Formerly known as HOLBORN SANDSTONE FORMATION.] Fletcher & Key, 1992; Nirex 658, 1994.
[Otherwise known as HOLKHAM TILL.] Bowen, 1999
[Formerly known as HUNSTANTON TILL.] Now Obsolete. Gallois, 1978, 1994.
[Formerly known as HOY LAVAS.] Not Entered
[Formerly known as HOY VOLCANIC FORMATION - Old code was also HOV.] Not Entered
[Otherwise known as TAN HILL COAL.] Variant of Tanhill Coal.
[Otherwise known as TANHILL COAL.] Owens and Burgess, 1965.
[Formerly known as UPPER CULM.] Sedgwick and Murchison, 1840.
[Otherwise known as REPLACED BY ORKNEY SANDSTONE GROUP [OYS].] Not Entered
[Formerly known as HOY SANDSTONE GROUP - Old code was also HOY.] Not Entered
[Formerly known as HOY SANDSTONES.] Mykura, 1976.
[Formerly known as HOPEDALE LIMESTONES - Old code was also HP.] Not Entered
[Formerly known as HARTLEPOOL ANHYDRITE - Old code was also HPA.] Marley, 1892; Trechmann, 1913 and Smith and Francis, 1967.
[Formerly known as BARR BEACON BEDS - Old code was ARBC.] Not Entered
[Formerly known as MOIRA BRECCIA - Old code was MOB.] (Or Hopwas Breccia)
[Formerly known as CORTON FORMATION.] Lee et al., 2004.
[Formerly known as HAPPISBURGH SANDS.] Lunkka, 1994.
[Formerly known as INTERMEDIATE BEDS.] Banham, 1966.
[Formerly known as FLOODPLAIN SAND AND GRAVEL.] Brandon, A and Sumbler, M G, 1988.
[Formerly known as FLOODPLAIN TERRACE.] Clayton, K M, 1953.
[Formerly known as HOLME PIERREPONT SAND AND GRAVEL - Old code was also HPSG.] Charsley, T J, et al, 1990.
[Formerly known as FIRST CROMER TILL.] Banham, 1968; Ranson, 1968.
[Formerly known as HAPPISBURGH DIAMICTON.] Lunkka, 1994.
[Otherwise known as SECOND PIPER COAL [NOTTINGHAM].] Though a separate Second Piper seam is present in the Derby area, the Hospital Coal is probably a partial correlative of the Second Piper Coal in the Nottingham area.
[Formerly known as HARLOCK GRITS.] Used on 1:25,000 Special Sheet SD27 (Daltan in Furness).
[Otherwise known as RAVENHEAD HIGHER DELF.] Not Entered
[Formerly known as RAVENHEAD HIGHER DELF.] Not Entered
[Otherwise known as JOHNSTONE SHELL BED.] Correlative.
[Formerly known as QUARTZITE CONGLOMERATE - Old code was QZT.] Not Entered
[Formerly known as LOWER BOULDER CLAY OF THE MAIN GLACIATION.] Trotter et al., 1937.
[Formerly known as HILLHEAD GROUP.] Mykura, 1991, p322.
[Formerly known as HILLHEAD SANDSTONES, FLAGSTONES AND SHALES.] Horne, 1923, p 65.
[Formerly known as HARDRAW SCAR LIMESTONE.] Former mis-spelling based on the original usage "Hardraw Limestone" of Phillips (1836).
[Formerly known as LAKE FLOOR DEPOSITS.] Trotter et al., 1937.
[Otherwise known as BOWLAND SHALE FORMATION.] Not Entered
[Formerly known as HOLYWELL SHALES - Old code was also HSH.] Not Entered
[Formerly known as HAM-SCARFSKERRY FLAGSTONE SUBGROUP - Old code was also HSK.] Not Entered
[Formerly known as HAILES MEMBER.] Not Entered
[Formerly known as NOTHE CLAY - Old code was NOC.] In north Dorset, sensu Wright, 1981, p. 18-22.
[Formerly known as HORSHAM STONE.] Not Entered
[Formerly known as BED D.] (Howell and Geikie, 1861).
[Formerly known as BEDS AT J TO M.] (Henderson and Brown, 1870).
[Formerly known as LOWER ARGILLACEOUS BEDS.] Mykura and Smith in Mitchell and Mykura, 1962.
[Formerly known as LOWER RED SANDSTONE.] Mykura and Smith in Mitchell and Mykura, 1962.
[Formerly known as MIDDLE RED SANDSTONE.] Mykura and Smith in Mitchell and Mykura, 1962.
[Formerly known as RED IGNEOUS CONGLOMERATE AND SANDSTONE.] Mykura and Smith in Mitchell and Mykura, 1962.
[Formerly known as RED SANDSTONE SERIES.] (Peach and Horne, 1899).
[Formerly known as UPPER ARGILLACEOUS BEDS.] Mykura and Smith in Mitchell and Mykura, 1962.
[Formerly known as UPPER RED SANDSTONE.] Mykura and Smith in Mitchell and Mykura, 1962.
[Formerly known as HASCOSAY SLIDE.] Flinn, 1994.
[Otherwise known as HIGHER TWO MINES COAL.] Not Entered
[Formerly known as HIGHER TWO MINES.] Not Entered
[Formerly known as HARTFIELD BRECCIA FORMATION.] Not Entered
[Formerly known as MOFFAT BRECCIA FORMATION.] Obsolete (fide M Akhurst, 24/03/2004.
[Formerly known as HARRISON STICKLE MEMBER - Old code was also HTK.] BGS Lexicon entry lacked lithology epithet.
[Otherwise known as HUNTLY-KNOCK PLUTON.] The name Huntly-Knock Basic Intrusion is preferred.
[Formerly known as BIRNBECK LIMESTONE FORMATION - Old code was BBL.] Obsolete/redundant term. Whittaker and Green, 1983.
[Otherwise known as BLACK METALS MARINE BAND.] Local name, Cumbria, possibly still to some extent in current use.
[Otherwise known as BRADFORD MARINE BAND.] Local name in parts of the Lancashire Coalfield area, possibly still to some extent in current use.
[Otherwise known as DOCTORS MINE MARINE BAND.] Local name, North Staffordshire Coalfield area, possibly still to some extent in current use.
[Otherwise known as HAFOD HEULOG MARINE BAND.] Local name in parts of the South Wales Coalfield area, possibly still to some extent in current use.
[Otherwise known as KIRKBY'S MARINE BAND.] Local name, Northumberland and Durham coalfield areas, possibly still to some extent in current use.
[Otherwise known as LOWER STINKING MARINE BAND.] Local name in parts of the Denbighshire and Flintshire coalfield areas, possibly still to some extent in current use.
[Otherwise known as MOLE MARINE BAND.] Local name in parts of the South Wales Coalfield area, possibly still to some extent in current use.
[Otherwise known as SANDWICH MARINE BAND.] Local name, Canonbie area, possibly still to some extent in current use.
[Formerly known as BLACK METALS MARINE BAND - Old code was BMET.] Local name, Cumbria, possibly still to some extent in current use.
[Formerly known as BRADFORD MARINE BAND - Old code was BFDMB.] Local name in parts of the Lancashire Coalfield area, possibly still to some extent in current use.
[Formerly known as DOCTORS MINE MARINE BAND - Old code was DMMB.] Local name, North Staffordshire Coalfield area, possibly still to some extent in current use.
[Formerly known as HAFOD HEULOG MARINE BAND.] Local name in parts of the South Wales Coalfield area, possibly still to some extent in current use.
[Formerly known as KIRKBY'S MARINE BAND - Old code was KMB.] Local name, Northumberland and Durham coalfield areas, possibly still to some extent in current use.
[Formerly known as LOWER STINKING MARINE BAND - Old code was LOSMB.] Local name in parts of the Denbighshire and Flintshire coalfield areas, possibly still to some extent in current use.
[Formerly known as MOLE MARINE BAND - Old code was MOLMB.] Local name in parts of the South Wales Coalfield area, possibly still to some extent in current use.
[Formerly known as SANDWICH MARINE BAND - Old code was SHMB.] Local name, Canonbie area, possibly still to some extent in current use.
[Formerly known as HOLT TOWN SANDSTONE - Old code was also HTS.] Not Entered
[Formerly known as HUNSTANTON CHALK FORMATION.] Not Entered
[Formerly known as HUNSTANTON CHALK MEMBER - Old code was also HUCK.] Not Entered
[Formerly known as HUNSTANTON LIMESTONE.] Not Entered
[Formerly known as HUNSTANTON RED CHALK FORMATION.] (Owen, H G, 1995).
[Formerly known as HUNSTANTON RED ROCK.] Not Entered
[Formerly known as RED CHALK.] Not Entered
[Otherwise known as PWLL BIG COAL [SOUTH WALES COALFIELD].] Not Entered
[Otherwise known as WENALLT COAL [SOUTH WALES COALFIELD].] Not Entered
[Formerly known as HUGHES BEDS - Old code was H.] Woodland et al., 1957.
[Formerly known as HUGHES FORMATION - Old code was H.] Not Entered
[Otherwise known as HUTTON HENRY BED.] of Thomas, 1999.
[Formerly known as CHEADLE BRECCIAS.] WILLS, 1956.
[Formerly known as HUDSONOCERAS PROTEUS MARINE BAND.] Not Entered
[Otherwise known as MURRAYSHALL LIMESTONE.] Not Entered
[Formerly known as BROADSTONE LIMESTONE - Old code was BRLS.] Redundant full synonym; Browne, M A E and 5 others, 1999, Table 4, p16.
[Formerly known as CHARLESTOWN STATION LIMESTONE - Old code was CHSL.] Redundant full synonym; Browne, M A E and 5 others, 1999, Table 4, p16.
[Formerly known as DOUGLAS MAIN LIMESTONE - Old code was DMLS.] Redundant full synonym; Browne, M A E and 5 others, 1999, Table 4, p16.
[Formerly known as GILMERTON LIMESTONE - Old code was GILS.] Redundant full synonym; Browne, M A E and 5 others, 1999, Table 4, p16.
[Formerly known as HAWTHORN LIMESTONE MEMBER - Old code was HAWL.] Confirmed as Obsolete by M A E Browne, 13/01/2005.
[Formerly known as ST MONANS BRECCIATED LIMESTONE - Old code was STMB.] Redundant full synonym; Browne, M A E and 5 others, 1999, Table 4, p16.
[Formerly known as UPPER CRICHTON LIMESTONE - Old code was UCRC.] Redundant full synonym; Browne, M A E and 5 others, 1999, Table 4, p16.
[Formerly known as UPPER LONGCRAIG LIMESTONE - Old code was ULOL.] Redundant full synonym; Browne, M A E and 5 others, 1999, Table 4, p16.
[Formerly known as WEST KIRKTON LIMESTONE - Old code was WKL.] Redundant full synonym; Browne, M A E and 5 others, 1999, Table 4, p16.
[Otherwise known as PURPLE SHALES.] Not Entered
[Formerly known as CONGLOMERATES OF HEAVITREE.] Murchison, 1839
[Formerly known as CORYTON BRECCIAS.] Laming, 1982
[Formerly known as EXMINSTER BRECCIAS - Old code was EXBR.] Smith and others, 1974.
[Formerly known as EXMINSTER CONGLOMERATES.] Worth, 1890
[Formerly known as HEAVITREE BRECCIA.] Ussher, 1902.
[Formerly known as HEAVITREE BRECCIA MEMBER.] Bristow, 1984.
[Formerly known as HEAVITREE CONGLOMERATE.] Murchison, 1867.
[Formerly known as KENNFORD BRECCIAS AND LANGSTONE BRECCIA.] Laming, 1982.
[Otherwise known as HAGLEY VOLCANIC FORMATION.] Not Entered
[Otherwise known as STANLLYD COAL.] Not Entered
[Otherwise known as YARTLETON FORMATION.] Lawson,1954 and Worssam et al.,1989
[Formerly known as UPPER HAUGH WOOD BEDS AND LOWER HAUGH WOOD BEDS.] Squirrell and Tucker, 1960;1982.
[Formerly known as BLACKHEATH BEDS.] Not Entered
[Formerly known as HALES CLAY.] Not Entered
[Formerly known as LONDON CLAY BASEMENT BED.] Not Entered
[Formerly known as OLDHAVEN BEDS.] Of Whitaker, 1866, now included within the Harwich Formation.
[Formerly known as HAWICK ROCKS.] Not Entered
[Otherwise known as SMIDDY LIMESTONE.] Correlative: Hawes Limestone in the Askrigg Block, Smiddy Limestone in areas to the north.
[Formerly known as HARELAW LAVAS.] Not Entered
[Formerly known as LOWER CORAL RAG.] Arkell, 1941.
[Formerly known as PEBBLE BED + PISOLITE + LOWER TRIGONIA BED + UPPER TRIGONIA BED + URCHIN MARLS.] Arkell, 1939.
[Formerly known as HYTHE BEDS.] Not Entered
[Formerly known as LOWER CALCAREOUS GRIT - Old code was LCG.] Woodward, 1895; Wright, 1981.
[Formerly known as HAYNE BEECH BEDS - Old code was also HYBC.] Informal naming may remain valid if current status as an informal Member is refuted.
[Formerly known as HAYNE BEECH FORMATION - Old code was also HYBC.] Downgraded to informal Member in line with regrading of Parent Unit.
[Formerly known as CARBONIFEROUS LIMESTONE.] Not Entered
[Formerly known as CLOUD HILL DOLOMITE FORMATION.] Not Entered
[Formerly known as LOWER CALCAREOUS GRIT FORMATION AND KINGSTON FORMATION (UNDIFFERENTIATED) - Old code was LCGK.] The term Lower Calcareous Grit Formation is now restricted to use in Yorkshire; Hazelbury Bryan Formation is now used for strata formerly attributed to this Formation in Wiltshire and south Oxfrodshire.
[Otherwise known as HALESOWEN FORMATION.] See Powell et al, 1999.
[Formerly known as HIGHLEY BEDS.] Mitchell, and others, 1962
[Formerly known as HIGHLEY GROUP.] Whitehead and Pocock, 1947.
[Otherwise known as COWDENBEATH SEVEN FOOT COAL.] Correlative.
[Otherwise known as SUTTON MARINE BAND.] Sutton Marine Band is the Standard name for the marine band at this horizon across the British Isles. Ramsbottom and others, 1978.
[Formerly known as HYNER FORMATION.] Chesher, 1968.
[Formerly known as HYNER SHALE - Old code was HYSH.] Selwood et al. 1984.
[Formerly known as HYSSINGTON VOLCANIC FORMATION - Old code was also HYS.] Not Entered
[Formerly known as LOWER ESTUARINE SERIES [INFERIOR OOLITE].] Indexed in places as above: on Sheet 218 (1968 edition), Sheet 202 (1969 edition) and Sheet 201 (1982 edition).
[Formerly known as SWERFORD BEDS.] Richardson, 1911.
[Formerly known as SWERFORD MEMBER.] Sellwood and McKerrow, 1974.
[Formerly known as HYNER SHALE.] Not Entered
[Formerly known as HYTHIE MEMBER.] of the Kirkhill Formation of Sutherland, 1999.
[Formerly known as HYTHIE TILL FORMATION.] Merritt et al., 2000.
[Formerly known as KIRKHILL UPPER TILL.] Connell, Hall and Romans, 1984; Connell and Hall, 1987; Hall and Connell, 1991; Hall and jarvis, 1993.
[Formerly known as UNWEATHERED KIRKHILL TILL.] Connell, Edwards and Hall, 1982.
[Formerly known as HYNER SHALE FORMATION AND TRUSHAM SHALE FORMATION (UNDIFFERENTIATED) - Old code was also HYTM.] Both original terms and their unique codes made obsolete and replaced by modern equivalents. The code for this composite remains acceptable.
[Formerly known as HOUGHTON ROCK.] Not Entered
[Formerly known as GIBBET HILL CONGLOMERATE - Old code was also GHC.] Not Entered
[Formerly known as BEDS AT D TO E.] (Henderson and Brown, 1870)
[Formerly known as BEDS D TO E.] (Peach and Horne, 1899).
[Formerly known as LOWER MEMBER, WETHER LAW LINN FORMATION.] (Robertson, 1989).
[Formerly known as LOWER PART OF BED C.] (Howell and Geikie, 1861)
[Formerly known as LOWER PART OF FOSSILIFEROUS MUDSTONES AND SILTSTONES.] Mykura and Smith in Mitchell and Mykura, 1962.
[Formerly known as UNITS A TO C, WETHER LAW LINN FORMATION.] (Tipper, 1976).
[Formerly known as GARLETON HILLS VOLCANIC ROCKS.] Not Entered
[Formerly known as GILNAHIRK FORMATION - Old code was also GILN.] Not Entered
[Otherwise known as UPPER LONGCRAIG LIMESTONE.] Not Entered
[Formerly known as GILLFOOT BEDS - Old code was GIB.] Craig, 1956; Deegan, 1970)
[Formerly known as GILLFOOT MEMBER - Old code was also GISD.] Not Entered
[Formerly known as GILLFOOT SANDSTONE FORMATION - Old code was also GISD.] Not Entered
[Otherwise known as COWGLEN STINKING COAL.] Not Entered
[Formerly known as GOUROCK FORMATION - Old code was GUF.] Not Entered
[Formerly known as CATSBIT LIMESTONE.] Langholm area.
[Formerly known as DRYBURN LIMESTONE.] Northumberland.
[Formerly known as FIRST LIMESTONE.] Cumbria.
[Formerly known as GREAT LIMESTONE - Old code was also GL.] Not Entered
[Formerly known as MAIN LIMESTONE.] Askrigg Block. Cossey et al (2004).
[Formerly known as BIGHOUSE LIMESTONE MEMBER.] NIREX 658, 1994.
[Formerly known as CENTRAL HIGHLAND DIVISION.] Piasecki, 1980; Piasecki and Van Breemen, 1983.
[Formerly known as GLEANN BEAG SCHIST.] (Upton, 1986).
[Formerly known as GLION CAM UNIT.] Woodcock et al., 1999.
[Formerly known as LONAN AND NIARBYL FLAGS.] Geological Survey, 1898; Lamplugh, 1903.
[Formerly known as LONAN AND NIARBYL FLAGS, GLEN DHOO FLAGS AND CRONKSHAMERK SLATES.] Simpson, 1963.
[Formerly known as GLENFINNAN DIVISION - Old code was MB.] Not Entered
[Formerly known as ESTUARINE ALLUVIUM.] Welch and Trotter, 1960.
[Otherwise known as ARMADALE MAIN COAL.] Not Entered
[Formerly known as GLEN LETHNOT GRITS.] Effock-Lethnot Group
[Formerly known as GLACIAL LAKE DEPOSITS - Old code was also GLLD.] Not Entered
[Formerly known as GLENELLY FORMATION (OBSOLETE CODE: USE GLLY) - Old code was DCGO.] Not Entered
[Formerly known as TOURMALINE SCHISTS OF GLENELLY NORTH.] Hartley, 1938
[Otherwise known as PART OF: COALBROOKDALE FORMATION.] Not Entered
[Formerly known as WENLOCK SHALES.] Robertson, 1927.
[Formerly known as BASEMENT BED.] Kennedy, 1970
[Formerly known as CHLORITIC MARL.] Jukes-Browne and Hill, 1903
[Formerly known as GLAUCONITIC MARL MEMBER.] Robinson, 1986
[Formerly known as LOWER CHALK (PART).] Not Entered
[Otherwise known as GLACIOLACUSTRINE PRO-GLACIAL DEPOSITS.] This spelling might remain in use locally.
[Formerly known as GLACIOLACUSTRINE PRO-GLACIAL DEPOSITS - Old code was also GLPG.] Spelling revised for Lexicon consistency.
[Otherwise known as GLEANN BEAG PHYLLITES.] (SH65W)
[Otherwise known as GLEANN BEAG RIBBED LIMESTONE.] (SH65W)
[Otherwise known as GLEN BADDOCH WHITE LIMESTONE.] (SH65W)
[Otherwise known as MONZIE LIMESTONE AND SCHIST.] (SH55E)
[Formerly known as APPIN PHYLLITE AND LIMESTONE FORMATION.] Not Entered
[Formerly known as LOWER PSAMMITE.] Shepherd, 1970.
[Formerly known as LOWER QUARTZITE.] Wilson, 1975.
[Formerly known as MOELFRE GRITS.] Not Entered
[Formerly known as BARRULE SLATES.] Geological Survey, 1898; Lamplugh, 1903; Simpson, 1963.
[Formerly known as GLENSHALLOCH SHALE FORMATION - Old code was also GLSH.] Not Entered
[Otherwise known as LISTERI MARINE BAND.] This preferred form was applied by Ramsbottom and others, 1978 to replace usage of local names across Great Britain.
[Formerly known as BLUE MARL.] Smith, W, 1815. (Referred to by Jukes-Browne and Hill, 1900, p.15).
[Formerly known as BLUE MARLE.] Webster, T, 1816. (Describing Isle of Wight). (Referred to by Jukes-Browne and Hill, 1900, p. 15).
[Formerly known as GAULT - Old code was also GLT.] Not Entered
[Formerly known as GAULT CLAY.] Not Entered
[Formerly known as GAULT CLAY FORMATION - Old code was also GLT.] Lexicon entry formerly included the rock-type epithet "Clay". Removed November 1998.
[Formerly known as VOLCANIC SERIES OF GLEN COE.] Bailey, 1960.
[Otherwise known as PORTPATRICK FORMATION.] Portpatrick Formation [PPF] is the senior synonym of Glenwhan Formation (Floyd, 1996).
[Otherwise known as COWGLEN ROUGH COAL.] Not Entered
[Otherwise known as GINGHAM MINE COAL.] Not Entered
[Formerly known as GINGHAM MINE.] Not Entered
[Formerly known as LOWER MUDSTONES.] Lapworth, 1882.
[Formerly known as GLACIO-MARINE DEPOSITS (UNDIFFERENTIATED) - Old code was also GMDU.] Qualifier and hyphen deleted, as unnecessary.
[Formerly known as MAIN LIMESTONE.] Tonks et al, 1931.
[Formerly known as THREE YARDS LIMESTONE.] Tonks et al, 1931.
[Otherwise known as LEPTON EDGE ROCK.] Not Entered
[Formerly known as BED 3 (UPPER PART) OF CROVIE GROUP.] (Read, 1923)
[Formerly known as WEST HARBOUR FORMATION.] (Turner and Archer, 1975)
[Formerly known as GAMLAN BLACK SHALES.] Not Entered
[Formerly known as GAMLAN FLAGS AND GRITS.] Not Entered
[Otherwise known as GRANGEMOUTH FORMATION.] Not Entered
[Formerly known as GRANGEMOUTH BEDS.] Not Entered
[Formerly known as GLARAMARA TUFF MEMBER - Old code was also GMT.] Contraction of name to reflect bed status.
[Formerly known as GAMLAN SHALE GROUP - Old code was GMSH.] Not Entered
[Otherwise known as RHASFACH COAL.]
[Formerly known as GARDEN COURSE [VEIN].] Not Entered
[Formerly known as CASTLE HILL FORMATION - Old code was CAH.] Obsolete term (Browne et al, 2001)
[Formerly known as GOURDON FORMATION - Old code was also GNF.] Not Entered
[Formerly known as GLEN KYLLACHY GRANITE.] Smith, 1995; Van Breeman and Piasecki, 1983.
[Otherwise known as CLOWN MARINE BAND.] Ramsbottom and others, 1978.
[Formerly known as GREENAN FORMATION.] Not Entered
[Formerly known as GLEN SCADDLE COMPLEX.] Not Entered
[Otherwise known as CRAIGLEITH SANDSTONE.] This term probably replaces Granton Sandstones.
[Formerly known as GARNEDD-WEN BEDS - Old code was GWB.] Not Entered
[Formerly known as MIDDLE LIAS MUDSTONE AND SILTSTONES.] On 1972 Provisional sheet 127 (Grantham)
[Otherwise known as CLAY COAL [SOUTH WALES COALFIELD].] Not Entered
[Otherwise known as GREAT OOLITE GROUP.] Not Entered
[Formerly known as GREAT OOLITE FORMATION - Old code was GOF.] Not Entered
[Formerly known as REDBOURNE GROUP - Old code was RDBN.] The upper part of this now Obsolete unit (Gaunt et al., 1992) comprised rocks that are better considered as components of the Inferior Oolite Group.
[Formerly known as UPPER BOULDER CLAY.] includes deposits assigned to the above by Eastwood et al (1931).
[Formerly known as UPPER SANDS AND GRAVELS.] includes deposits assigned to the above by Eastwood et al (1931).
[Otherwise known as RED COAL [SOUTH WALES COALFIELD].] Not Entered
[Formerly known as UPPER SANDSTONE.] (Padget, 1952).
[Formerly known as GOWLAUN SHALE - Old code was also GOS.] Not Entered
[Formerly known as GOUROCK SAND FORMATION - Old code was also GOSA.] Re-ranking of the same deposits.
[Formerly known as POST CARSE ESTUARINE DEPOSITS.] Not Entered
[Formerly known as GARDDEN-FAWR ASH.] Wedd et al, 1929
[Formerly known as GODOR ASH.] Wedd et al, 1929
[Formerly known as GOWKSTANE MEMBER.] Earlier erroneous spelling.
[Formerly known as GLEN PARVA CLAY - Old code was also GPCL.] Not Entered
[Formerly known as GLENBURN VOLCANIC DETRITAL MEMBER (OBSOLETE NAME AND CODE: SEE GPVD) - Old code was GBV.] Not Entered
[Otherwise known as SWANSEA THREE FEET COAL.] Not Entered
[Formerly known as GRAMPOUND GROUP - Old code was also GRAD.] Not Entered
[Formerly known as EILDE FLAGS.] Former term (Bailey, E B and Maufe, H B, 1960) now part of the Grampian Group.
[Formerly known as GRAMPIAN DIVISION - Old code was MD.] These rocks were formerly considered part of the Moinian succession (eg Johnstone, 1975).
[Formerly known as STRUAN FLAGS.] Former term (Barrow, G, 1905) now part of the Grampian Group.
[Otherwise known as REPLACED BY GREEN MEMBER [GRE].] Not Entered
[Formerly known as GRANBY LIMESTONES - Old code was also GRBL.] Not Entered
[Formerly known as GRINSTEAD CLAY - Old code was also GRC.] Drew, 1861.
[Formerly known as GRINSTEAD CLAY FORMATION - Old code was also GRC.] Not Entered
[Formerly known as GOUTHER CRAG MEMBER - Old code was also GRCG.] Lithological epithet added [D Millward] 10/03/2003.
[Formerly known as GARRON CHALK.] Fletcher, 1967
[Formerly known as GARRON CHALK MEMBER.] Not Entered
[Formerly known as GREEN BEDS (OBSOLETE CODE: USE GRE) - Old code was GRB.] Not Entered
[Formerly known as GREEN BEDS (OBSOLETE: USE GRE) - Old code was GBD.] Not Entered
[Formerly known as SECOND TERRACE GRAVELS.] Castleden, 1980.
[Formerly known as BOULDER CLAY.] Not Entered
[Formerly known as LOWER ESTUARINE BEDS.] Not Entered
[Formerly known as LOWER ESTUARINE SERIES.] Judd, 1875.
[Formerly known as GLENSHIRRA SUCCESSION.] Not Entered
[Formerly known as GRYPHAEA BED.] Wright, T, 1856.
[Formerly known as GRYPHAEA GRIT.] Wright, T, 1856.
[Formerly known as GRYPHITE GRIT.] Murchison, R I, 1834, p.10; Buckman, J, 1887, p.112; 1893; Parsons, 1976, p.51.
[Formerly known as GRYPHITE GRIT AND BUCKMANI GRIT.] Buckman, J, 1895, pp.390-393.
[Formerly known as WINDRUSH MEMBER.] Parsons, 1980.
[Formerly known as STRATH TUMMEL SUCCESSION.] Part of its outcrop area.
[Formerly known as GRETA GRITS FORMATION - Old code was also GRGT.] Downgraded from Formation to Bed.
[Formerly known as CHALK OF MORVERN.] Judd, 1878
[Formerly known as GRIBUN CHALK.] h5''' on Eastern Mull and Lismore
[Formerly known as SILICIFIED CHALK.] Scott, 1928
[Formerly known as SILICIFIED LIMESTONE WITH FLINT.] Not Entered
[Formerly known as CALP LIMESTONE OF THE CALP OR MIDDLE LIMESTONE.] Not Entered
[Formerly known as GRANGE SANDSTONE MEMBER - Old code was also GRNS.] Not Entered
[Formerly known as GRAMSCATHOS BEDS - Old code was also GRO.] Not Entered
[Formerly known as GRANGE FORMATION.] Huddart et al., 1977.
[Otherwise known as BOTANY LIMESTONE.] Not Entered
[Otherwise known as NEWTON LIMESTONE.] Not Entered
[Formerly known as GREAT VEIN.] Not Entered
[Otherwise known as GHRUDAIDH FORMATION.] Alternative spellings, both in current use, though GHRUDAIDH is preferred.
[Otherwise known as PERALKALINE RHYOLITE SWARM.] Not Entered
[Formerly known as GREYWACKE CONGLOMERATE - Old code was also GRWC.] Not Entered
[Formerly known as AQUEDUCT GRIT - Old code was AQG.] The unit was formerly known as the Aqueduct Grit in areas south of the Bryneglwys (Bala) Fault line.
[Formerly known as GWESPYR SANDSTONE FORMATION - Old code was also GS.] Not Entered
[Formerly known as HALKYN FORMATION - Old code was HAF.] Part of the former Halkyn Formation is assigned to the Gwespyr Sandstone Formation in appropriate areas.
[Formerly known as GREY SANDSTONE SERIES.] Not Entered
[Otherwise known as SUBCRENATUM MARINE BAND.] This preferred form was applied by Ramsbottom and others, 1978 to replace usage of local names across Great Britain.
[Formerly known as GREAT SCAR LIMESTONE - Old code was also GSCL.] Not Entered
[Formerly known as KENTMERE FORMATION.] The GSD is part of the former Kentmere Formation (Soper, N J and Numan, N M S, 1974).
[Formerly known as KENTMERE PIKE RHYOLITES.] The GSD is part of the Kentmere Pike Rhyolites (Unit No.5) of Mitchell, 1929.
[Formerly known as "ALBANY MUDSTONES WITH LIMESTONE NODULES".] Tripp, 1965.
[Formerly known as GRIESTON SLATES - Old code was also GSN.] Not Entered
[Otherwise known as 80 YARD ROCK.] The name 80 Yard Rock is used for sandstones at the same horizon elsewhere in west and south Yorkshire.
[Otherwise known as MAIN LIMESTONE.] Equivalent of the Main Limestone of Wensleydale.
[Otherwise known as BEACON HILL FLAGS.] Correlative Name
[Otherwise known as NAB END SANDSTONE.] Correlative Name
[Formerly known as GREAT COURSE.] Not Entered
[Otherwise known as ALSTON FORMATION.] of the Yoredale Group.
[Formerly known as GLEASTON GROUP.] Lexique Stratigraphique.
[Formerly known as YOREDALES.] Not Entered
[Formerly known as GREAT LADSTONES MEMBER - Old code was also GTLA.] Lithological epithet added [D Millward] 10/03/2003.
[Formerly known as GREAT ROW FORMATION - Old code was also GTR.] Rank reduced to Member 24/12/2003 [C N Waters].
[Formerly known as GREAT ROW MEASURES.] Earp and Calver, 1961.
[Formerly known as GLEANN BEAG SCHIST.] (Upton, P S, 1986).
[Otherwise known as GRUDAIDH FORMATION.] Alternative spelling of the same name: both are in use. Now rationalized so that only one Computer Code [GRU] is used. (Huselbee and Thomas, 1998)
[Formerly known as GHRUDAIDH GROUP.] Peach et al., 1907; Phemister, 1960.
[Formerly known as LOWER OIL-SHALE GROUP [PART].] The uppermost part of the former Lower Oil-Shale Group is now placed within the West Lothian Oil-Shale Formation or the Aberlady Formation. The remaining (lower) beds correspond to the Gullane Formation.
[Formerly known as CARLTON FORMATION + HARLEQUIN FORMATION.] Elliott, 1961
[Formerly known as GUNTHORPE FORMATION - Old code was also GUN.] See Revision notes. Charsley et al, 1990.
[Formerly known as CANINIA OOLITE - Old code was CAO.] Vaughan, 1905.
[Formerly known as CASWELL BAY OOLITE FORMATION - Old code was CBO.] Not Entered
[Formerly known as CREASE LIMESTONE FORMATION - Old code was CRL.] Term used west of the River Severn, particularly in the Forest of Dean.
[Formerly known as GLENCARTHOLM VOLCANIC BEDS - Old code was also GV.] Not Entered
[Formerly known as GLENCARTHOLM VOLCANIC GROUP.] Peach and Horne, 1903.
[Formerly known as GIRVANELLA BAND - Old code was also GVB.] Not Entered
[Formerly known as GAVELLS CLOUGH SANDSTONE MEMBER - Old code was also GVCS.] Not Entered
[Formerly known as GIVEN'S COAL - Old code was also GVNC.] Former (incorrect) spelling.
[Formerly known as NEWLANDS FORMATION (LOWER PART) - Old code was NWF.] Freshney, 1959.
[Formerly known as GILWERN CLAY FORMATION.] Barclay, 1989.
[Formerly known as GREAT WHINSCALE RHYOLITE.] Firman, 1957.
[Formerly known as WHIN SILL - Old code was WHSI.] Not Entered
[Otherwise known as LITTLE COAL (NORTH WALES) [LTLC].] Not Entered
[Formerly known as GILWERN OOLITE.] George, 1954.
[Formerly known as MERISTINA CRASSA SANDSTONE.] King, 1923.
[Formerly known as GARWALLT ASH.] Wedd et al, 1929
[Formerly known as BARDON 'GOOD ROCK'.] (Watts, W W, 1947).
[Formerly known as GRIMLEY-TYPE PORPHYROID.] (Watts, W W, 1947).
[Formerly known as GRAMMYSIA BEDS - Old code was also GYB.] Not Entered
[Otherwise known as FERRIBY CHALK FORMATION.] Analogous term applied in the Northern Province.
[Otherwise known as STRATHFINELLA HILL CONGLOMERATE.] Suspected to be lens-shaped body. Not laterally continuous with Strathfinella Hill Conglomerate, Armstrong and Paterson, 1970, although occurring at similar stratigraphical level.
[Formerly known as GANNOCHY FORMATION - Old code was also GYF.] Not Entered
[Formerly known as GLYN GOWER FORMATION - Old code was also GYG.] Not Entered
[Formerly known as GLYN GOWER SILTSTONES.] Bassett, D, Whittington, H B, and Williams, A. 1966. Quarterly Journal of the Geological Society, Vol.122, p.219-271.
[Otherwise known as CORWEN GRIT MEMBER.] Not Entered
[Formerly known as GLYN GRIT.] Of Groom and Lake 1908. Quarterly Journal of the Geological Society, Vol.64.
[Otherwise known as EDEN MEMBER.] of the Penrith Formation of Bowen et al., 1999.
[Formerly known as MAIN LATE DEVENSIAN TILL OF THE VALE OF EDEN.] Not Entered
[Formerly known as HUGHES BEDS - Old code was also H.] Woodland et al., 1957.
[Formerly known as HUGHES FORMATION - Old code was also H.] Regraded to Member Rank.
[Formerly known as ARDWICK LIMESTONES.] Beds formerly assigned to the Ardwick Limestones (Lancashire Coalfield) are now referred to the Halesowen Formation (Powell et al, 1999).
[Formerly known as COALPORT FORMATION - Old code was CP.] Beds formerly assigned to the Coalport Formation (Coalbrookdale Coalfield) are now referred to the Halesowen Formation (Powell et al, 1999).
[Formerly known as COED-YR-ALLT FORMATION - Old code was CYAF.] Beds formerly assigned to the Coed-yr-Allt Formation (Shrewsbury and Denbigh Coalfield) are now referred to the Halesowen Formation (Powell et al, 1999).
[Formerly known as HALESOWEN BEDS - Old code was HB.] Whitehead and Eastwood, 1927
[Formerly known as HALESOWEN GROUP.] Eastwood and others, 1925
[Formerly known as HALESOWEN SANDSTONE SERIES.] Kay, 1913
[Formerly known as HIGHLEY FORMATION - Old code was HYG.] Beds formerly assigned to the Highley Formation (Forest of Wyre Coalfield) are now referred to the Halesowen Formation (Powell et al, 1999).
[Formerly known as KEELE FORMATION - Old code was KE.] Beds formerly assigned to the Keele Formation are now considered to be a red lithofacies of the Halesowen Formation (Powell et al, 1999).
[Formerly known as NEWCASTLE FORMATION - Old code was NCL.] Beds formerly assigned to the Newcastle Formation (North Staffordshire Coalfield) are now referred to the Halesowen Formation (Powell et al, 1999).
[Formerly known as HATHERN ANHYDRITE SERIES.] Llewellyn, P G and Stabbins, R. 1970.
[Formerly known as BASAL BRECCIA AND SANDSTONE.] Not Entered
[Otherwise known as HAGGARD VEIN.] Not Entered
[Formerly known as HAGGARD VEIN.] Not Entered
[Formerly known as HACKNEY GRAVEL FORMATION - Old code was also HAGR.] Not Entered
[Formerly known as TERRACE 3A.] Berry's 1980, 6-inch maps.
[Otherwise known as ALTERNATA LIMESTONE.] Fortey et al., 2000.
[Formerly known as MARINE WARP.] of Trotter, F F, Hollingworth, S E, Eastwood, T and Rose, W C C, 1937.
[Formerly known as OLDER STORM BEACH.] on combined Gosforth (37) and Bootle (47) sheet, 1980.
[Formerly known as MEADFOOT BEDS - Old code was MDT.] (Part thereof). Reid, 1907.
[Formerly known as HAMBLETON MUDSTONE FORMATION - Old code was also HAM.] Warrington et al., 1980
[Formerly known as HAMBLETON MUDSTONES.] Wilson and Evans, 1990.
[Formerly known as FOURTH OR HANBOROUGH TERRACE DEPOSITS.] Harries, 1977; Corser, 1978, 1981, a, b.
[Formerly known as FOURTH TERRACE DEPOSITS.] Robson, 1975.
[Formerly known as FOURTH, HIGH OR 100-FOOT TERRACE DEPOSITS.] Pocock, 1908.
[Formerly known as HANBOROUGH MEMBER - Old code was also HAN.] Not Entered
[Formerly known as HANBOROUGH TERRACE DEPOSITS.] Dines in Richardson et al, 1946, Arkell, 1947a, b.
[Formerly known as HANBOROUGH [GRAVEL] FORMATION.] Bridgland, 1994.
[Formerly known as HANDBOROUGH TERRACE DEPOSITS.] Note the misspelling of the place name: Sandford, 1924. Sandford in Pringle, 1926.
[Formerly known as HAWK'S NEST COAL.] Not Entered
[Formerly known as HANCHURCH SANDSTONE - Old code was also HANS.] Not Entered
[Formerly known as HAMBLETON OOLITES - Old code was also HAO.] Not Entered
[Otherwise known as HARD MINE COAL.] Not Entered
[Formerly known as HARD MINE.] Not Entered
[Otherwise known as STONY COAL.] Not Entered
[Otherwise known as BEAUMONT COAL.] This seam has British Coal Index = N
[Formerly known as HASTINGS BEDS.] Bristow and Bazley, 1972.
[Formerly known as HASTINGS SANDS.] see references in Bristow and Bazley, 1972.
[Formerly known as HANGMAN GRITS - Old code was HAG.] Etheridge, 1867; Edmonds et al 1985.
[Formerly known as HANGMAN SANDSTONE GROUP - Old code was HGMS.] Tunbridge, 1978.
[Formerly known as HARNAGE SHALES - Old code was also HASH.] Not Entered
[Formerly known as HAIST SANDSTONE MEMBER - Old code was also HAT.] Not Entered
[Formerly known as HATTON TILL - Old code was also HATT.] Not Entered
[Formerly known as RED SERIES TILL.] Not Entered
[Formerly known as MUIRKIRK MAIN LIMESTONE.] Not Entered
[Formerly known as HAWESWATER COMPLEX - Old code was HAWC.] Nutt 1979
[Formerly known as HARTHWAITE FORMATION - Old code was also HAWT.] BGS Lexicon entry lacked lithology epithet.
[Formerly known as HAYSTACKS ANDESITE.] (McConnell, B J and Kneller, B C, 1993).
[Formerly known as HAYSTACKS MEMBER - Old code was also HAYS.] Lithological epithet re-introduced by D Millward (04/03/2003).
[Otherwise known as MEADOW FARM MARINE BAND.] Ramsbottom and others, 1978.
[Otherwise known as LOXLEY EDGE ROCK.] Name used farther south in the Yorkshire Coalfield.
[Formerly known as HUNDLEBY CLAY - Old code was also HBC.] ( Casey, 1973)
[Formerly known as HUNDLEBY CLAY FACIES.] ( Owen & Thurrell, 1968)
[Formerly known as HUNDLEBY CLAY FORMATION - Old code was also HBC.] Formerly coded as a Formation.
[Formerly known as HOPE BECK SLATES.] Jackson, 1961.
[Formerly known as DRYBROOK SANDSTONE GROUP - Old code was DS.] Trotter, 1942. Note also that the Drybrook Limestone (DL) occurred locally between the Lower and Upper Drybrook sandstones.
[Formerly known as LOWER CROMHALL SANDSTONE FORMATION - Old code was LCS.] Kellaway and Welch, 1955.
[Formerly known as LOWER DRYBROOK SANDSTONE - Old code was LDS.] Trotter, 1942.
[Formerly known as MIDDLE CROMHALL SANDSTONE FORMATION - Old code was MCS.] Kellaway and Welch, 1955.
[Formerly known as UPPER CROMHALL SANDSTONE FORMATION - Old code was UCS.] Kellaway and Welch, 1955.
[Formerly known as UPPER DRYBROOK SANDSTONE - Old code was UDS.] Trotter, 1942.
[Otherwise known as FIVE FOOT COAL.] Not Entered
[Otherwise known as BRIGHT COAL.] Not Entered
[Otherwise known as HARTLEY COAL.] Not Entered
[Formerly known as CHELTENHAM SANDS.] Gray, J W, 1912.
[Formerly known as COMBINED CHELTENHAM SAND AND FAN GRAVEL.] Worssam, B C, et al, 1989.
[Formerly known as JURASSIC GRAVELS.] Tomlinson, M E, 1940.
[Formerly known as DICTYOCARIS MEMBER (OBSOLETE NAME AND CODE: USE CHSI) - Old code was DICT.] Armstrong, M et al, 1978.
[Formerly known as BED 3 (LOWER PART OF CROVIE GROUP.] (Read, 1923).
[Formerly known as COUNTER HEAD FORMATIONS.] (Archer, 1978)
[Formerly known as EAST HARBOUR FORMATION.] (Archer, 1978)
[Formerly known as CRAGHOUSE TUFFS MEMBER - Old code was also CHT.] Lithological epithet revised (D MIllward) 05/03/2003.
[Otherwise known as CHARLOTTE MINE COAL.] Not Entered
[Formerly known as CHARLOTTE MINE.] Not Entered
[Otherwise known as PORTLAND CHERTY MEMBER.] Not Entered
[Formerly known as CULM.] Sedgwick and Murchison, 1840.
[Otherwise known as CHEVIOT VOLCANIC FORMATION.] Browne et al, 2001.
[Formerly known as CHARLES HILL VOLCANIC BEDS.] Informal past usage.
[Formerly known as CLAXBY BEDS.] Swinnerton, 1935; Owen and Thurrell, 1968; Casey, 1973, Wingfield et al., 1978.
[Formerly known as CLAXBY IRONSTONE - Old code was also CI.] Not Entered
[Formerly known as FERRUGINOUS BAND.] Dikes and Lee, 1837.
[Formerly known as LOWER SAND AND SANDSTONE.] Judd, 1867.
[Formerly known as CINDERFORD FORMATION - Old code was also CIFD.] Was changed to rank of Member, in response to parent becoming a formation in the sfc report draft.
[Formerly known as CILAN GRITS - Old code was also CIG.] Not Entered
[Formerly known as CILAN GRITS (IN PART).] In the usage of Nicholas, T C, 1915.
[Formerly known as CALEDONIAN IGNEOUS SUPERSUITE - Old code was also CIGSS.] Not Entered
[Formerly known as CAERFAI BEDS.] Not Entered
[Formerly known as CAERFAI FORMATION - Old code was CFBS.] Not Entered
[Formerly known as CAERFAI SERIES - Old code was also CIS.] Not Entered
[Formerly known as BEN LEDI GRITS.] Previously assigned to Ben ledi Grits
[Formerly known as THE CHALK.] Not Entered
[Formerly known as ACHREAMIE SANDSTONE FORMATION.] The northern, upper part of the Crosskirk Flagstone Formation, the Achreamie Sandstone Formation and the Buldoo Flagstone Formation sequences of Fletcher and Key, 1991.
[Formerly known as BULDOO FLAGSTONE FORMATION.] The northern, upper part of the Crosskirk Flagstone Formation, the Achreamie Sandstone Formation and the Buldoo Flagstone Formation sequences of Fletcher and Key, 1991.
[Formerly known as CROSSKIRK FLAGSTONE FORMATION.] The northern, upper part of the Crosskirk Flagstone Formation, the Achreamie Sandstone Formation and the Buldoo Flagstone Formation sequences of Fletcher and Key, 1991.
[Formerly known as APPLEDORE FORMATION.] Money, 1966
[Formerly known as BLACK DOWN SANDSTONE GROUP.] Not Entered
[Formerly known as COCKINGTON BEDS.] In part; Prentice, 1960b
[Formerly known as CRACKINGTON MEASURES.] Ashwin, 1958.
[Formerly known as EGGESFORD-TYPE CULM.] Ussher, 1887; 1892.
[Formerly known as HOLMINGHAM BEDS.] Webby and Thomas, 1965.
[Formerly known as INSTOW BEDS.] Prentice, 1960a.
[Formerly known as KIDDENS FORMATION.] Chesher, 1968.
[Formerly known as LIMEKILN BEDS.] Prentice, 1960.
[Formerly known as MIDDLE OR EXETER-TYPE CULM.] Ussher, 1887; 1892.
[Formerly known as OKEHAMPTON SANDSTONE GROUP.] Not Entered
[Formerly known as SOUTHERLY DOWN SANDSTONE GROUP.] Not Entered
[Formerly known as WELCOME BEDS.] Moore, 1968.
[Formerly known as WELCOME FORMATION.] Edmonds et al. 1968, 1969.
[Formerly known as WELCOME MEASURES.] Ashwin, 1958.
[Formerly known as WHITCHURCH DOWN GREYWACKE GROUP.] Dearman and Butcher, 1959.
[Formerly known as YAHNEY BEDS.] Lucas, 1960.
[Formerly known as COCKERMOUTH LAVAS.] Not Entered
[Formerly known as COCKERMOUTH LAVAS FORMATION - Old code was also CKML.] Not Entered
[Formerly known as CHALK ROCK - Old code was also CKR.] Jukes-Browne and Hill, 1904, (see discussion at 2.3).
[Formerly known as CHALK ROCK FORMATION.] Bromley and Gale, 1982.
[Formerly known as BED B.] (Howell and Geikie, 1861).
[Formerly known as BED C.] (Peach and Horne, 1899).
[Formerly known as BEDS AT C.] (Henderson and Brown, 1870).
[Formerly known as HAGGIS GRIT AND CONGLOMERATE.] Mykura and Smith in Mitchell and Mykura, 1962.
[Formerly known as UPPER PART OF DEERHOPE FORMATION.] (Tipper, 1976).
[Otherwise known as COPLOW LIMESTONE MEMBER.] New name defined by Riley (1990).
[Formerly known as CUCKFIELD STONE - Old code was also CKST.] Bristow and Bazley, 1972.
[Formerly known as EAST GLEN TILT PLUTON - Old code was EGTLT.] This term was considered unsuitable due to the scope for confusion with the Glen Tilt Intrusive-complex, the vagueness of the geographical epithet, and the fact that the unit comprises a relatively thin, concordant sheet rather than a pluton.
[Formerly known as PART OF BOYNDIE BAY GROUP.] On 1:50k sheet 86.
[Otherwise known as CLAUGHTON FLAG SERIES..] Equivalent to Claughton Formation, Slinger, 1936, p. 345.
[Otherwise known as CLAUGHTON MOOR SHALES.] Equivalent to Claughton Formation, Slinger, 1936, p.345.
[Otherwise known as KEASDEN FLAGS..] Synonym for Claughton Formation.
[Otherwise known as MOORCOCK FLAGS.] Equivalent to Claughton Formation, Slinger, 1936, p. 345.
[Otherwise known as NOTTAGE CRAG GRIT.] Equivalent to Claughton Formation, Slinger, 1936, p. 345.
[Formerly known as CLAUGHTON FLAGS.] Moseley, 1954, p. 435.
[Formerly known as CLAUGHTON FORMATION - Old code was also CLAU.] Rank reduced to Member.
[Formerly known as CLAVELLATA BEDS FORMATION - Old code was also CLAV.] The residual "Beds" epithet (from Trigonia clavellata Beds) was removed, in keeping with modern stratigraphical usage.
[Formerly known as TRIGONIA CLAVELLATA BEDS - Old code was TCLB.] Arkell, 1933; Wright, 1981; Bristow, 1989a, 1989b; Freshney, 1989; and Gutmann, 1970.
[Otherwise known as GOODIG COAL [SOUTH WALES COALFIELD].] Not Entered
[Formerly known as CLARBOROUGH BEDS - Old code was also CLB.] Smith and Warrington, 1971; Smith et al., 1973.
[Formerly known as CLARBOROUGH FORMATION - Old code was also CLB.] Warrington et al., 1980.
[Formerly known as CLOGHASTUCAN CHALK MEMBER.] Not Entered
[Formerly known as MARSUPITES WHITE LIMESTONE.] Reid, 1964
[Formerly known as LYTHAM FORMATION.] The fluvial parts of this former unit (Thomas, 1999) are now incorporated in the Subgroup.
[Formerly known as SWETTENHAM FORMATION.] The fluvial parts of this former unit (Thomas, 1999) are now incorporated in the Subgroup.
[Formerly known as CRICKLEY MEMBER.] Included in the Crickley Member.
[Formerly known as DEVIL'S CHIMNEY OOLITE.] Mudge, D C, 1978a. Possibly additional beds included in the succeeding Devil's Chimney Oolite.
[Formerly known as DEVIL'S CHIMNEY OOLITE AND CLEEVE HILL OOLITE.] Combined Devil's Chimney Oolite and Cleeve Hill Oolite in Cheltenham area.
[Formerly known as DEVIL'S CHIMNEY OOLITE AND FIDDLER'S ELBOW LIMESTONE.] In Stroud area, Mudge, D C, 1978a.
[Formerly known as FROCESTER HILL OOLITE AND SELSEY HILL OOLITE.] Mudge, D C, 1978a. In the south, Stroud to Wootton-under-Edge area.
[Formerly known as JACKDAW QUARRY OOLITE.] Mudge, D C, 1978a. See Sumbler, M G, Barron, A J M and Morigi, A N, 2000.
[Formerly known as LOWER FREESTONE.] Hull, E, 1857.
[Formerly known as PART OF PEA GRIT SERIES.] Woodward, H B, 1894, p.110.
[Formerly known as PEA GRIT EQUIVALENT.] Richardson, L, 1904. In the north Cotswolds, Winchcombe to Stow-on-the-Wold area.
[Formerly known as WHITE GUITING STONE.] Richardson, L, 1929. Possibly additional beds included in the succeeding White Guiting Stone.
[Formerly known as YELLOW GUITING STONE.] Richardson, L, 1929. In the north Cotswolds, Winchcombe to Stow-on-the-Wold area.
[Formerly known as YELLOW STONE.] Richardson, L, 1933. In the north Cotswolds, Winchcombe to Stow-on-the-Wold area.
[Otherwise known as TUPTON ROOF COAL.] Name used in parts of Nottinghamshire.
[Otherwise known as TUPTON ROOF COAL (NOTTINGHAM).] Correlated with this unit.
[Otherwise known as ABERCRIBAN OOLITE SUBGROUP.] Lateral equivalents, but internal correlations at Formational or lower level have not been established.
[Formerly known as CLYDACH BEDS - Old code was also CLD.] Not Entered
[Formerly known as OOLITE GROUP.] George, 1954.
[Otherwise known as CLENT FORMATION.] See Powell et al, 1999.
[Otherwise known as CLIFF VEIN.] Not Entered
[Formerly known as CLIFF VEIN.] Not Entered
[Formerly known as CORSEWALL GROUP - Old code was also CLG.] (Kelling, 1961)
[Formerly known as CLAYGATE BEDS - Old code was also CLGB.] Not Entered
[Formerly known as PASSAGE BEDS - Old code was PBD.] Not Entered
[Formerly known as MIDDLE DELTAIC SERIES.] Hemingway, 1949.
[Formerly known as MIDDLE DELTAIC SERIES (HEMINGWAY, 1949).] Not Entered
[Formerly known as MIDDLE ESTUARINE SERIES.] Fox-Strangways (1892) included what are now the Cloughton Formation, the Eller Beck Formation and the Saltwick Formation in his Middle Estuarine Series.
[Formerly known as MIDDLE ESTUARINE SERIES (PARS) (FOX-STRANGWAYS, 1892).] Included what is now the Cloughton Formation and the Eller Beck Formation and the Saltwick Formation.
[Formerly known as CARBONIFEROUS LIMESTONE.] Parsons, L M, 1918.; Mitchell, G H and Stubblefield, C J, 1941.
[Formerly known as CLOUD HILL DOLOMITE FORMATION.] Monteleone, P H, 1973.
[Formerly known as CLIFT HILLS PHYLLITIC 'GROUP' - Old code was also CLHI.] Not Entered
[Formerly known as CLOSE HILL SILTSTONE MEMBER.] Not Entered
[Formerly known as CARN LLIDI INTRUSION - Old code was also CLIN.] Not Entered
[Formerly known as CLITHEROE LIMESTONE SERIES.] Parkinson, 1926.
[Otherwise known as ALLOA CHERRY COAL.] Located in the northern and western part of the Alloa-Stirling-Falkirk area.
[Otherwise known as LITTLE SPLINT COAL.] Located in the northern and western part of the Alloa-Stirling-Falkirk area.
[Formerly known as BASEMENT SANDS OF THE UPPER GLAUCONIITE BEDS.] (in part) Hancock, 1961
[Formerly known as CHLORITE SANDS AND SANDSTONES.] (in part) Hume, 1897
[Formerly known as COLLINWELL SANDS MEMBER.] in BGS publications
[Formerly known as GLAUCONITIC SANDS.] (in part) Tate, 1865
[Formerly known as LOWER HIBERNIAN GREENSANDS.] (in part) Reid, 1971
[Formerly known as QUARTZOSE SANDS.] part of the Cenomanian/Turonian Greensands (Manning et al., 1970)
[Otherwise known as COVE LOWER LIMESTONE.] Not Entered
[Formerly known as CLAUGHTON MOOR SHALES.] Slinger, 1936.
[Formerly known as CLAUGHTON MOOR SILTSTONE MEMBER - Old code was also CLMS.] Rank reduced to Bed.
[Formerly known as CLAVA SHELLY CLAY MEMBER - Old code was CSCL.] Name and code made obsolete [J W Merrit; 03/10/2003] and replaced by Clava Lodge Clay Member.
[Otherwise known as CARLOPS OIL-SHALE.] Not Entered
[Formerly known as CLAYPOLE LIMESTONE - Old code was also CLPL.] Not Entered
[Otherwise known as SCHIEHALLION QUARTZITE.] Local equivalent of Schiehallion Quartzite.
[Formerly known as CREAG LEACACH QUARTZITE.] Upton, 1986.
[Formerly known as CLAVELLATA BEDS.] Smith, W, 1815-16, Sheet 297.
[Formerly known as CUCKLINGTON OOLITE.] Smith, W, 1815-16, Sheet 297.
[Otherwise known as OAKENSHAW ROCK.] The Oakenshaw Rock, developed in the area south of Bradford, occupies the same stratigraphical position,
[Otherwise known as DALROY SAND MEMBER.] Clava Sand Member made obsolete [J W Merritt, 03/10/2003] and definition details transferred to Dalroy Sand Member [DROY].
[Formerly known as CLARAGH SANDSTONE GROUP.] Not Entered
[Otherwise known as CLITHEROE LIMESTONE FORMATION.] Not Entered
[Otherwise known as CULDOICH TILL MEMBER.] The name Clava Shelly Till Member was made obsolete (03/10/2003; J W Merritt) and details of its definition transferred to a new Lexicon entry for Culdoich Till Member.
[Formerly known as CLAVA SHELLY TILL - Old code was also CLST.] Peacock, 1975.
[Formerly known as BRECCIA GROUP.] Eastwood and others, 1925
[Formerly known as CLENT BRECCIAS - Old code was CLE.] Old and others, 1991
[Formerly known as CLENT GROUP.] Wills, 1950
[Formerly known as CLENT HILLS BRECCIA.] King, 1893
[Formerly known as TRAPPOID BRECCIA.] King, 1923
[Formerly known as CLOGAU SHALES.] Matley and Wilson, 1946.
[Formerly known as LAW FORMATION.] Browne and McMillan, 1989a.
[Formerly known as COLWICK FORMATION - Old code was also CLW.] Not Entered
[Formerly known as LOWER RED BED AND PEBBLE BED GROUP.] (Mitchell, G H and Stubblefield, C J, 1941).
[Formerly known as RED BED MEMBER.] (Monteleone, P H, 1973).
[Formerly known as DYSERTH LIMESTONE GROUP - Old code was DYL.] Made obsolete, as equivalent to the lower part of the Clwyd Limestone Group [CNW, 22/10/2003].
[Formerly known as GRONANT GROUP - Old code was GRN.] The lower part of the former Gronant Group lies within the Clwyd Limestone Group [CNW; 22/10/2003].
[Formerly known as MOUNTAIN LIMESTONE.] Not Entered
[Formerly known as CLYDE VALLEY FORMATION.] Includes parts of the Clyde Valley Formation as described by Sutherland, in Bowen, 1999.
[Formerly known as GIRVAN FORMATION.] Includes parts of the Girvan Formation as described by Sutherland, in Bowen, 1999.
[Formerly known as CLYTH SUBGROUP - Old code was HIH.] Not Entered
[Formerly known as HELMAN HEAD BEDS - Old code was HIH.]
[Formerly known as PRODUCTIVE COAL MEASURES - Old code was LMCM.] Eg. Dudley and Bridgnorth Memoirs; also Besly, 1988.
[Formerly known as CWM-AMLIW GROUP - Old code was also CMA.] Not Entered
[Formerly known as CWM-AMLIW SERIES.] Not Entered
[Formerly known as BENSCLIFFE AGGLOMERATE.] (Worssam and Old, 1988)
[Formerly known as FELSITIC AGGLOMERATE.] (Watts, 1947)
[Formerly known as CAMBECK BEDS - Old code was also CMBB.] Not Entered
[Otherwise known as COMB COAL.] Alternative spelling of name in the Derby sheet area
[Otherwise known as COOMBES COAL (NOTTINGHAM AND DERBY).] Not Entered
[Formerly known as BUCK HILLS GREYWACKE.] (Worssam, B C and Old, R A, 1988).
[Formerly known as BUCK HILLS GRIT.] (Watts, W W, 1947).
[Formerly known as BEACON HILL FORMATION.] (Moseley, J and Ford, T D, 1985).
[Formerly known as BEACON HILL TUFF FORMATION.] (Worssam, B C and Old, R A, 1988).
[Formerly known as BURN BRIDGE ARENITE.] Part of the Carmichael Burn Group of Rolfe (1960).
[Formerly known as CARMICHAEL BURN GROUP.] of Rolfe (1960)
[Formerly known as CROSSRIDGE FORMATION.] Part of the Carmichael Burn Group of Rolfe (1960).
[Formerly known as MANSE MUDSTONE.] Part of the Carmichael Burn Group of Rolfe (1960).
[Formerly known as WOODHOUSE AND BRADGATE BEDS.] (Watts, W W, 1947).
[Formerly known as WOODHOUSE AND BRADGATE TUFFS FORMATION - Old code was also CMBT.] Not Entered
[Formerly known as CREAG MHOR CONGLOMERATES (FORMATION) - Old code was also CMC.] Not Entered
[Formerly known as CHARNWOOD LODGE AGGLOMERATE MEMBER - Old code was also CMCL.] (Worssam, B C and Old, R A, 1988).
[Formerly known as CHARNWOOD LODGE MEMBER.] (Moseley, J and Ford, T D, 1985).
[Formerly known as STOCKDALE SHALES - Old code was SCSH.] King and Wilcockson, 1934.
[Formerly known as BASAL HYDRAULIC LIMESTONE MEMBER.] Basal Hydraulic Limestone Member plus part of the Santon Oolite Member of Ashton (1975; 1980). Also approximates toe the [Basal Hydraulic Limestone of some previous authors (e.g. Kent, 1966).
[Formerly known as CLEATHAM LIMESTONE MEMBER - Old code was also CML.] Formerly coded as a Member within the Lincolnshire Limestone Formation.
[Formerly known as SANTON OOLITE MEMBER.] Basal Hydraulic Limestone Member plus part of the Santon Oolite Member of Ashton (1975; 1980).
[Formerly known as COMBE FORMATION.] Chesher, 1968.
[Formerly known as COMBE SHALE.] Selwood et al, 1984.
[Formerly known as COMBE SHALE FORMATION - Old code was CMSH.] Not Entered
[Formerly known as CAMPSIE FORMATION.] Armstrong et al., 1985
[Formerly known as PITTENDREICH LIMESTONE [AT NO 578 614] - Old code was PHLS.] Armstrong and Paterson, 1970.
[Formerly known as STANLEY LIMESTONE - Old code was SYLS.] Not Entered
[Formerly known as UPPER PSAMMITE.] Shepherd, 1970; Holdsworth, 1994.
[Formerly known as UPPER QUARTZITE.] Wilson, 1975.
[Formerly known as COMLEY SANDSTONE SERIES.] But see Revision Note 1.
[Formerly known as BARREN COAL MEASURES (UPPER).] Not Entered
[Formerly known as COAL MEASURES GROUP (SCOTLAND) - Old code was also CMSC.] Cosmetic reordering of the name to match formats used in the southern UK.
[Formerly known as PRODUCTIVE COAL MEASURES (MIDDLE AND LOWER) - Old code was LMCM.] Not Entered
[Formerly known as COMBE FORMATION.] Chesher,1968.
[Formerly known as SLATE AGGLOMERATE.] (Watts, W W, 1947).
[Otherwise known as CEMENTSTONE FORMATION.] Forms part of the Farne Group offshore.
[Formerly known as MAPLEWELL SERIES.] Watts, W W, 1947.
[Formerly known as VOLCANIC CONGLOMERATES.] Frances, E H et al, 1970, p.88-90.
[Otherwise known as CROFTHEAD COAL.] Not Entered
[Otherwise known as HIGHSTONE COAL.] Not Entered
[Otherwise known as HOLLANDBUSH SMITHY COAL.] Possible correlative.
[Formerly known as PERMIAN BASAL LAVAS - Old code was PBLV.] Term now obsolete (see Revisions).
[Formerly known as CONCRETIONARY LIMESTONE FORMATION.] Smith, 1971;1994.
[Formerly known as UPPER MAGNESIAN LIMESTONE.] Smith and Francis, 1967.
[Otherwise known as GELLI-GRIN CALCAREOUS ASH FORMATION.] Lateral correlative according to Bassett et al., 1966; Lockley, 1980.
[Formerly known as UPPER CEISWYN BEDS.] Pugh, 1928
[Formerly known as CONFINIS FLAGS.] Not Entered
[Formerly known as CONFINIS FLAGS FORMATION.] "Flags" epithet removed following Fortey, et al., 2000.
[Formerly known as ORTHIS CONFINIS FLAGS.] Not Entered
[Formerly known as CLOUSTON HILL COAL - Old code was also CNHC.] An incorrect spelling that was introduced to the Lexicon accidentally.
[Formerly known as CHIPPING NORTON FORMATION.] Not Entered
[Formerly known as CHIPPING NORTON LIMESTONE.] (Hudleston, W H, 1878).
[Formerly known as SEMINULA OOLITE.] George, 1933.
[Formerly known as GASTRIOCERAS CANCELLATUM MARINE BAND - Old code was GCNMB.] Not Entered
[Formerly known as PART OF THE 'SCHISTS' WITHIN THE MOINE SERIES.] Not Entered
[Formerly known as LYTHAM FORMATION.] Non-marine parts of the former Lytham Formation (Thomas, 1999) are included in the Subgroup.
[Formerly known as SWETTENHAM FORMATION.] Non-marine parts of the former Swettenham Formation (Thomas, 1999) are included in the Subgroup.
[Otherwise known as BLAIRHALL BLACKBAND IRONSTONE.] Not Entered
[Otherwise known as INZIEVAR BLACKBAND IRONSTONE.] Not Entered
[Otherwise known as OAKLEY BLACKBAND IRONSTONE.] Not Entered
[Otherwise known as UPPER COMRIE BLACKBAND IRONSTONE.] Not Entered
[Otherwise known as LOCHGELLY BLACKBAND IRONSTONE.] Not Entered
[Otherwise known as LOWER COMRIE BLACKBAND IRONSTONE.] Not Entered
[Formerly known as COSHESTON BEDS - Old code was also COB.] Cantrill et al. 1916, who also used the term Cosheston Group.
[Otherwise known as HEAD.] Identical deposits are mapped as Head in many parts of the country and Head is the preferred term, with coombe deposits representing a chalky variant.
[Formerly known as COMBE DEPOSITS.] Shephard-Thorn and others (1994). Geology of the Country Around Leighton Buzzard. Memoir of the British Geological Survey, Sheet 220 (England & Wales).
[Formerly known as COEDANA GRANITE.] Greenly E, 1919.
[Formerly known as COLEFORD FORMATION - Old code was also COFD.] Not Entered
[Formerly known as CAIRNSMORE OF FLEET GRANITE.] Gardiner and Reynolds, 1937; Parslow, 1968.
[Formerly known as BEDS 5 AND 6.] George, 1954.
[Formerly known as ASHOVER GRIT.] Smith, 1967. Aitkenhead et al., 1985; Stevenson and Gaunt, 1971.
[Formerly known as CARSE CLAY.] Not Entered
[Formerly known as CROUSA DOWN GRAVEL BEDS.] Budge, 1843.
[Formerly known as BYDOWN CHERT - Old code was BYDC.] Correlation by implication, as formerly regarded as the "lowest member of the Chert Beds".
[Formerly known as CHERT BEDS.] Prentice, 1960.
[Formerly known as CODDEN HILL BEDS.] Ussher, 1887.
[Formerly known as CODDEN HILL CHERT.] Edmonds et al, 1985.
[Formerly known as CODDEN HILL GROUP.] Jackson, 1991.
[Formerly known as FIRE BEACON CHERT FORMATION - Old code was FCF.] Now considered to be obsolete and replaced by Codden Hill Chert Formation.
[Formerly known as MELDON CHERT FORMATION - Old code was MCF.] Term considered redundant/obsolete.
[Formerly known as MOUNT ARARAT CHERT FORMATION - Old code was ACH.] Now considered to be obsolete and replaced by Codden Hill Chert Formation.
[Formerly known as TAWSTOCK, HEARSON AND RUBBLE HILLS FORMATION.] Jackson, 1991.
[Formerly known as CONISTON LIMESTONE.] Sedgwick, 1846.
[Formerly known as CONISTON LIMESTONE SERIES.] Various authors.
[Formerly known as COLLA FIRTH 'GROUP' - Old code was also COLA.] Not Entered
[Formerly known as COLDINGHAM BEDS - Old code was also COLB.] Shiells and Dearman, 1966; Greig, 1988.
[Otherwise known as GRINLLWM GRITS.] Davies (1936)
[Formerly known as BODEIDDA AND DEGANWY MUDSTONES.] Not Entered
[Formerly known as BODEIDDA MUDSTONES - Old code was BDM.] These beds are subsumed into the Conwy Mudstones Formation.
[Formerly known as DEGANWY MUDSTONE - Old code was DYM.] These beds are subsumed into the Conwy Mudstones Formation.
[Formerly known as GYFFIN SHALES - Old code was GYS.] These beds are subsumed into the Conwy Mudstones Formation.
[Formerly known as COMLEY ROCKS (UNDIFFERENTIATED) - Old code was also COMY.] Name revised in line with changes to BGS geochronology usage.
[Formerly known as ALLUVIAL FAN DEPOSITS.] Alluvial Fan Deposits and other generic superficial deposits (qv) are subsumed within this Formation, potentially as component members.
[Formerly known as ALLUVIUM.] Alluvium and other generic superficial deposits (qv) are subsumed within this Formation, potentially as component members.
[Formerly known as HEAD.] Head and other generic superficial deposits (qv) are subsumed within this Formation, potentially as component members.
[Formerly known as LACUSTRINE DEPOSITS.] Lacustrine Deposits and other generic superficial deposits (qv) are subsumed within this Formation, potentially as component members.
[Formerly known as RIVER TERRACE DEPOSITS.] River Terrace Deposits and other generic superficial deposits (qv) are subsumed within this Formation, potentially as component members.
[Formerly known as LOWER UPPER CHANNEL DEPOSITS.] Not Entered
[Formerly known as COPLOW KNOLL SERIES.] Parkinson, 1926.
[Formerly known as PART OF BEN LUI SCHIST.] Not Entered
[Formerly known as CONWAY RHYOLITE FORMATION - Old code was also COR.] Name now de-anglicised.
[Formerly known as CORTON FORMATION - Old code was CRTB.] Same name but duplicate code now flagged as obsolete.
[Otherwise known as ACTON PARK LIMESTONE.] Not Entered
[Otherwise known as FELTON ST MARY'S LIMESTONE.] Not Entered
[Otherwise known as LOWER FELLTOP LIMESTONE.] Not Entered
[Otherwise known as SUGAR SANDS LIMESTONE.] Not Entered
[Formerly known as CORTON SANDS - Old code was also CORS.] Not Entered
[Formerly known as CORSE DIAMICTON FORMATION.] Merritt, Connell and Bridgland. 2000.
[Formerly known as EAST LEYS MEMBER.] Of the Kirkhill Formation of Sutherland, 1999.
[Formerly known as EAST LEYS TILL.] Hall and Jarvis. 1993.
[Formerly known as ELEMENT OF KIRKHILL UPPER TILL.] Connell, Hall and Romans. 1984; Connell and Hall,. 1987.
[Formerly known as UNWEATHERED MESOZOIC TILL.] Connell, Edwards and Hall. 1982.
[Formerly known as CORVANAGHAN FORMATION - Old code was DACV.] Not Entered
[Formerly known as TYRONE CENTRAL INLIER.] Not Entered
[Formerly known as TYRONE METAMORPHIC INLIER - Old code was DATI.] Not Entered
[Formerly known as CORNBROOK SANDSTONE.] Not Entered
[Formerly known as MILLSTONE GRIT - Old code was MG.] Not Entered
[Formerly known as COCKLETT SCAR FLAGS.] Slinger, F C, 1936. Report of the British Association for the Advancement of Science, Blackpool.
[Formerly known as COCKLETT SCAR SANDSTONE MEMBER - Old code was also COSS.] Rank reduced to Bed.
[Formerly known as STONEHEAD SANDSTONE - Old code was STO.] Term coined on Garstang (67) sheet, subsequently replaced by Cocklett Scar Sandstones Member.
[Formerly known as COTGRAVE PLACE SKERRY.] Not Entered
[Formerly known as COTGRAVE SKERRY.] Elliott, 1961.
[Formerly known as COTGRAVE SKERRY (MEMBER).] Not Entered
[Formerly known as COTGRAVE SKERRY MEMBER.] Warrington et al., 1980.
[Formerly known as NORWICH DIAMICTON - Old code was NDI.] Not Entered
[Formerly known as COTTONSHOPE BASALTS.] Not Entered
[Formerly known as COTTONSHOPE LAVAS.] Taylor et al, 1971.
[Formerly known as QUARTZ CONGLOMERATE.] Cocks and Toghill, 1973.
[Formerly known as COWLEIGH PARK BEDS.] Not Entered
[Formerly known as BUNTER PEBBLE BEDS - Old code was BNP.] Not Entered
[Formerly known as CONGLOMERATIC 'DIVISION' OF CORSEWELL GROUP.] Kelling, 1961
[Formerly known as CORSEWALL (POINT) CONGLOMERATE - Old code was also CPC.] (Kelling, 1961)
[Otherwise known as REPLACED BY TOWNBURN SANDSTONE MEMBER [TWN].] Not Entered
[Formerly known as COCKLEY PIKE MEMBER - Old code was also CPK.] BGS Lexicon entry lacked lithology epithet.
[Formerly known as MONOGRAPTUS-SEDGWICKII GRITS.] Lapworth, (1900).
[Formerly known as CAM SPOUT TUFF MEMBER - Old code was also CPT.] Formerly inappropriately ranked in the BGS Lexicon.
[Formerly known as CLYDE PLATEAU LAVAS.] Not Entered
[Formerly known as CLYDE PLATEAU VOLCANIC GROUP.] Not Entered
[Formerly known as CLYDE PLATEAU VOLCANIC ROCKS - Old code was also CPV.] Not Entered
[Formerly known as ALLERMUIR GROUP.] (Peach et al, 1910)
[Formerly known as CAPELAW BASIC GROUP AND CAPELAW ACID GROUP.] (Mykura, 1960)
[Formerly known as CAPELAW VOLCANIC FORMATION.] Not Entered
[Formerly known as HARTSHILL FORMATION.] As Hartshill Sandstone Formation.
[Formerly known as CORALLIAN BEDS.] Excluding the Ampthill Clay.
[Formerly known as CORALLIAN FORMATION.] Horton et al., 1995.
[Formerly known as CORALLIAN ROCKS.] Blake and Hudleston, 1880.
[Formerly known as CAERED FLAGS.] Nicholas, T C, 1915
[Formerly known as LOWER CAERED MUDSTONES.] Nicholas, T C, 1915
[Formerly known as GRONANT GROUP - Old code was GRN.] The upper part of the former Gronant Group lies within the Craven Group [CNW; 22/10/2003].
[Formerly known as IN PART: BOWLAND SHALE GROUP.] Craven Basin.
[Formerly known as IN PART: DYSERTH LIMESTONE GROUP.] North Wales.
[Formerly known as IN PART: GRONANT GROUP.] North Wales.
[Formerly known as IN PART: WORSTON SHALE GROUP.] Craven Basin.
[Formerly known as CREDITON BEDS.] (Hutchins, P F, 1963).
[Formerly known as CREDITON BRECCIAS.] (Laming, D J C, 1982).
[Formerly known as CREDITON CONGLOMERATES.] (Included in the Crediton Conglomerates of Edmonds, E A, et al, 1968).
[Formerly known as YENPACOTT BRECCIA.] (Edwards, R A, 1984).
[Otherwise known as TOP NEDDY MINE.] Not Entered
[Formerly known as CRACKERS MINE.] Not Entered
[Otherwise known as HUNTS BAY OLLITE SUBGROUP.] Not Entered
[Formerly known as DALTON BEDS - Old code was also DLB.] Not Entered
[Otherwise known as LOWER DELABOLE SLATE.] Freshney, et al., 1972.
[Formerly known as DELABOLE SLATES - Old code was also DLBS.] Original Lexicon entry.
[Formerly known as PENPETHY BEDS.] Parkinson, J, 1903; Dewey, H, 1909.
[Formerly known as DARK GROUP OF BLAIR ATHOLL SERIES.] (Bailey, E B, 1925. Bailey, E B and McCallien, W J, 1937).
[Formerly known as DARK LIMESTONE AND DARK SCHIST WITHIN BLAIR ATHOLL SUBGROUP.] British Geological Survey Sheet 55E. Smith, R A and Harris, A L, 1976.
[Formerly known as UPPER PART OF STRATH FIONAN DARK LIMESTONE AND DARK SCHIST FORMATION.] (Treagus, J E and King, G, 1978).
[Otherwise known as REPLACED BY DERRYLORAN FORMATION [DLN].] Not Entered
[Formerly known as DEESIDE LIMESTONE - Old code was DBDS.] Read, H H, 1928.
[Formerly known as DARVEL LAVAS.] Not Entered
[Formerly known as DERRYLORAN GRIT FORMATION (OBSOLETE NAME AND CODE: USE DLN) - Old code was DLG.] Not Entered
[Formerly known as DERRYLORAN GRIT MEMBER.] (Geological Survey of Northern Ireland, 1983)
[Formerly known as DERRYLORAN GRITS.] (Fowler, A and Robbie, J A, 1961)
[Formerly known as UPPER CALCIFEROUS SANDSTONE.] (Eagan, 1881)
[Otherwise known as J.] British Coal Index.
[Otherwise known as LITTLE WONDER COAL.] Note: also applied to the Bottom Bensham Coal in the same general area.
[Formerly known as DOLPHINHOLME MUDSTONE FORMATION - Old code was also DLP.] Treated as a Formation on 1:50000 BGS Sheet 59 (Lancaster); rank now reduced to Bed.
[Formerly known as CHANGUE FORMATION.] Ince (1984)
[Formerly known as DALREOCH DIVISION - Old code was also DLR.] Not Entered
[Otherwise known as DALRY SANDSTONE MEMBER.] Not Entered
[Formerly known as LIMESTONE COAL GROUP.] In part: The Dalry Sandstone Formation rocks correspond to the top part of the Limestone Coal Group in north Ayrshire.
[Formerly known as DOLGELLAU MEMBER - Old code was also DLU.] Allen and Jackson, 1985. (Part of the Cwm Hesgen Formation.)
[Formerly known as DAILLY SERIES.] Not Entered
[Formerly known as DALCHARN BIOGENIC MEMBER.] Not Entered
[Formerly known as DOLWEN MUDSTONES FORMATION - Old code was also DMF.] The term Dolwen Mudstones Formation was formerly considered obsolete. The name Dolwen Mudstones has been revived as an informal division within the Devil's Bridge Formation.
[Otherwise known as FLINTY GRAVEL.] Worssam and Old,1988.
[Formerly known as DARK GREY MUDSTONE.] Cave and Harris, 1986.
[Formerly known as MONOGRAPTUS-SEDGWICKI SHALES - Old code was MSW.] Jones and Pugh, 1916.
[Formerly known as DODMAN PHYLLITES.] Reid, C and Teall, J J H, 1907. Geology of the country around Mevagissey. Memoirs of the Geological Survey, Sheet 353 (east and west).
[Formerly known as DODMAN SERIES.] Reid, C and Teall, J J H, 1907. Geology of the country around Mevagissey. Memoirs of the Geological Survey, Sheet 353 (east and west).
[Formerly known as DODMAN SERIES/DODMAN PHYLLITES.] (Reid, C and Teall, J J H, 1907. Geology of the country around Mevagissey. Memoirs of the Geological Survey, Sheet 353 (east and west).
[Otherwise known as DOWNEND GROUP.] (Kellaway, 1969]
[Formerly known as DOWNEND FORMATION - Old code was also DN.] (Kellaway & Welsh, 1993)
[Formerly known as DOWNEND GROUP.] (Kellaway, 1969)
[Otherwise known as REPLACED BY CABAN CONGLOMERATE FORMATION [CBN].] Not Entered
[Formerly known as DOOLIE NESS CONGLOMERATE FORMATION.] Carroll, 1995.
[Formerly known as DENEND GRAVEL FORMATION.] Merritt, Connell and Bridgland. 2000.
[Formerly known as DENEND MEMBER.] of the Kirkhill Formation of Sutherland, 1999.
[Formerly known as LEYS GRAVEL FORMATION.] BGS Sheet 87W Ellon, Solid and Drift. 2002.
[Formerly known as LEYS GRAVELS.] Hall and Connell. 1986.
[Formerly known as LEYS LOWER GRAVELS.] Connell and Hall. 2000.
[Formerly known as DUNNERDALE FORMATION - Old code was also DNF.] Lithological epithet added [D Millward] 05/03/2003.
[Formerly known as DUNNERDALE TUFFS.] Mitchell, 1956.
[Formerly known as CALCAREOUS SERIES, DURNESS LIMESTONE, DURNESS LIMESTONE OR DOLOMITE.] Peach et al., 1907; Phemister, 1960.
[Formerly known as DURNESS LIMESTONE OR ERIBOLL LIMESTONE.] Lapworth, 1883.
[Formerly known as DURNESS OR ERIBOLL SERIES.] Not Entered
[Formerly known as DUN LIMESTONE - Old code was also DNL.] Not Entered
[Formerly known as LADIES WOOD LIMESTONE - Old code was LDW.] Term formerly used in the Bellingham (sheet 13) area.
[Formerly known as LAMBERTON LIMESTONE - Old code was LALS.] Confirmed as Obsolete by D Millward, 23/02/2006.
[Formerly known as DOWNEND FORMATION AND MANGOTSFIELD FORMATION (UNDIFFERENTIATED) - Old code was also DNMG.] Ranks of components revised.
[Formerly known as DALCHARN BIOGENIC FORMATION.] Not Entered
[Formerly known as DOUNREAY SHORE FORMATION.] Nirex 658, 1994.
[Formerly known as CONISTON LIMESTONE FORMATION.] Not Entered
[Formerly known as CONISTON LIMESTONE GROUP - Old code was COL.] Not Entered
[Formerly known as CONISTON LIMESTONE SERIES.] Not Entered
[Formerly known as DOLHIR BEDS.] Not Entered
[Formerly known as DOVE CRAG MEMBER - Old code was also DOCR.] Lithological epithet added [D Millward] 11/03/2003.
[Otherwise known as MORAINIC DEPOSITS.] Not Entered
[Otherwise known as DOE MINE COAL.] Not Entered
[Formerly known as DOE MINE.] Not Entered
[Formerly known as RHUDDNANT GRITS (FORMATION), DOETHIE FACIES - Old code was also DOFA.] Name and Parent both revised (J R Davies, 27/04/2004).
[Formerly known as DOLWEN GRITS - Old code was also DOG.] Matley and Wilson, 1946.
[Otherwise known as CORROUR GRANULITE.] Probable correlatives.
[Formerly known as PALE SHALES.] Not Entered
[Formerly known as LOCH DOON - LOCH DEE PLUTON.] Not Entered
[Formerly known as LOCH DOON COMPLEX.] Not Entered
[Formerly known as LOCH DOON GRANITE.] Not Entered
[Formerly known as LOCH DOON PLUTONIC COMPLEX.] Not Entered
[Otherwise known as FOUR FEET [VEIN] COAL.] Not Entered
[Otherwise known as LOCHTAY LIMESTONE FORMATION.] (Used on SH56W).
[Formerly known as DOWNTON SERIES.] Bassett and others, 1982
[Formerly known as DOWNIE POINT CONGLOMERATE.] Not Entered
[Formerly known as DOWNIE POINT CONGLOMERATE FORMATION - Old code was also DPCO.] Not Entered
[Formerly known as DEEPDALE FORMATION - Old code was also DPD.] Lithological epithet added [D Millward] 11/03/2003.
[Formerly known as "BEDDED TUFF".] Unit No 4 of Mitchell, 1929
[Formerly known as DOUNREAY SILTSTONE MEMBER.] Of the Sandside Sandstone Formation (Fletcher and Key, 1991).
[Otherwise known as DUNROBIN BAY GROUP.] The name Dunrobin Bay Group is used Offshore.
[Formerly known as DUNROBIN BEDS - Old code was also DRB.] Old Dic_Strat entry
[Formerly known as LOWER LIAS AND (?) RHAETIC.] Not Entered
[Formerly known as DRUMBEG FORMATION - Old code was also DRBG.] Not Entered
[Otherwise known as GLEN SANNOX CONGLOMERATE.] None, possibly equivalent to Glen Sannox Conglomerate.
[Formerly known as DRUID CONGLOMERATE - Old code was also DRC.] Not Entered
[Formerly known as DRUID CONGLOMERATES - Old code was also DRC.] Not Entered
[Formerly known as CASTLE HAVEN CONGLOMERATE MEMBER - Old code was CHAV.] Component member.
[Formerly known as DOWNIE POINT CONGLOMERATE FORMATION - Old code was DPCO.] Component member.
[Formerly known as STRATHLETHAN SANDSTONE MEMBER - Old code was SNF.] Component member.
[Formerly known as CRAWTON GROUP.] (New name combining the previous Dunnottar Group and Crawton Group. Both named by Campbell, R, 1913 and redefined by Armstrong, M and Paterson, I B, 1970).
[Formerly known as DUNNOTTAR AND CRAWTON GROUPS [UNDIFFERENTIATED] - Old code was also DRCR.] Formerly comprised two groups (Dunnottar Group and Crawton Group) and the new definition supersedes the existing individual definitions.
[Formerly known as DUNNOTTAR GROUP.] (New name combining the previous Dunnottar Group and Crawton Group. Both named by Campbell, R, 1913 and redefined by Armstrong, M and Paterson, I B, 1970).
[Formerly known as DROSGOL BEDS.] Jones, 1909.
[Formerly known as DROSGOL GRITS.] Jones, 1909.
[Formerly known as DROSGOL GROUP.] Jones, 1909.
[Formerly known as DUNNOTTAR CONGLOMERATE.] Hickling, G, 1908. Included Dunnottar, Crawton and part of Arbuthnott groups of present definition.
[Formerly known as DUNNOTTAR GROUP.] Campbell, R, 1913. Included upper part of Stonehaven Group of present definition.
[Formerly known as COARSE GRAVEL AND SAND.] Horne, and others, 1894.
[Formerly known as DRUMMORE GRAVEL MEMBER - Old code was also DRGR.] Rank revised to Formation (J W Merritt, 24/02/04).
[Formerly known as DRUMOCHTER SUCCESSION.] Thomas, 1980.
[Formerly known as CLAVA SAND MEMBER - Old code was CLSA.] Name and code made obsolete [J W Merritt, 03/10/2003] and definition data transferred to Dalroy Sand Member.
[Formerly known as DROPPING CRAIG FORMATION.] Not Entered
[Formerly known as PALE LIMESTONE WITHIN BLAIR ATHOLL SUBGROUP.] (British Geological Survey Sheet 55E. Treagus, J E and King, G, 1978).
[Formerly known as WHITE LIMESTONE WITHIN BLAIR ATHOLL SUBGROUP.] Smith, R A and Harris, A L, 1976.
[Formerly known as WHITE LIMESTONE WITHIN PALE GROUP OF BLAIR ATHOLL SERIES.] (Bailey, E B, 1925. Bailey, E B and McCallien, W J, 1937).
[Formerly known as DRYGILL SHALES.] Not Entered
[Formerly known as DORRERY SANDSTONE FORMATION.] Fletcher & Key, 1992; Nirex 658, 1994.
[Otherwise known as BIN DOWN FORMATION.] Not Entered
[Otherwise known as WHITSAND BAY FORMATION.] Not Entered
[Formerly known as DARTMOUTH BEDS.] Dineley, 1966.
[Formerly known as DARTMOUTH SLATES.] Ussher, 1890.
[Formerly known as THE SCOBBISCOMBE SANDSTONES.] Dineley, 1966.
[Formerly known as THE WARREN SANDSTONES.] Dineley, 1966.
[Formerly known as THE WEMBURY SILTSTONES.] Dineley, 1966.
[Formerly known as THE YEALM FORMATION.] Dineley, 1966.
[Otherwise known as BRYNCOCH COAL.] Not Entered
[Formerly known as BASAL SANDSTONE.] "Basal Sandstone" of the Cementstone Group of the Calciferous Sandstone Measures in Eyles et al., 1949.
[Formerly known as DRYDEN FLAGS - Old code was also DRY.] Wilson and Hinxman, 1890, p.27
[Formerly known as DRYDEN FORMATION - Old code was also DRY.] Not Entered
[Formerly known as DRYDEN SHALES - Old code was DRYS.] Wilson and Hinxman, 1890, p. 27
[Otherwise known as CROMHALL SANDSTONE FORMATION.] Now the preferred alternative as DS is considered Obsolete [21/12/2004].
[Formerly known as DRYBROOK LIMESTONE.] Not Entered
[Formerly known as LOWER DRYBROOK SANDSTONE.] Not Entered
[Formerly known as UPPER DRYBROOK SANDSTONE.] Not Entered
[Otherwise known as DURLSTON FORMATION.] Not Entered
[Otherwise known as APPIN GROUP.] The Scatsta 'Division' of Shetland is largely equivalent to the Appin Group of mainland Scotland etc.
[Formerly known as DEN SILTSTONE FORMATION - Old code was also DSF.] Downgraded from being a Formation within the Sarclett Group to a Member of the Braemore Mudstone Formation.
[Otherwise known as BECK BOTTOM STONE COAL (WEST YORKSHIRE).] Correlated equivalent unit.
[Formerly known as DOUNANS LIMESTONE.] Informal
[Formerly known as WATERSTONES.] Charsley, 1982.
[Formerly known as ALKALINE BASIC IGNEOUS ROCKS IN THE ORKNEYS.] Not Entered
[Formerly known as EDAY LAVAS - Old code was EDL.] Not Entered
[Formerly known as EDAY VOLCANIC ROCKS.] Not Entered
[Formerly known as EDAY VOLCANICS.] Not Entered
[Formerly known as DARTMOUTH BEDS - Old code was also DTB.] Not Entered
[Otherwise known as LOWER THIRTY INCH COAL.] Lower split of Diuglas Thirty Inch Coal.
[Otherwise known as UPPER THIRTY INCH COAL.] Upper split of Douglas Thirty Inch Coal.
[Formerly known as LOWER "OSTREA" BEDS.] Not Entered
[Formerly known as PERMIAN BRECCIAS (UNDIVIDED).] Not Entered
[Formerly known as DURE CLOUGH SANDSTONES MEMBER - Old code was also DUCS.] Rank reduced to Bed.
[Formerly known as PARK WOOD SANDSTONE - Old code was PAW.] Name coined on Garstang (67) sheet, subsequently replaced by Dure Clough Sandstones Member.
[Otherwise known as TANNADICE SANDSTONE MEMBER.] Not Entered
[Formerly known as DUNBLANE FORMATION - Old code was also DUF.] Francis et al., 1970; Armstrong and Paterson, 1970.
[Formerly known as DUNBLANE MEMBER - Old code was also DUF.] Not Entered
[Formerly known as DUNNET HEAD SANDSTONE GROUP - Old code was also DUH.] Not Entered
[Formerly known as DUNNET SANDSTONE GROUP - Old code was also DUH.] Not Entered
[Otherwise known as MAIN COAL (ROTHBURY AREA).] Alternative name, not coded, to avoid confusion with coals of similar name elsewhere.
[Otherwise known as STANLLYD COAL [IN PART].] The Dulas Coal and Nine Feet Coal together form the Stanllyd Coal.
[Formerly known as DUNGIVEN FORMATION (OBSOLETE CODE: USE DUNN) - Old code was DBDI.] Not Entered
[Formerly known as DUNGIVEN LIMESTONE.] (Hartley, 1938).
[Formerly known as LOWER BEOIL BANDED QUARTZITE.] (Thomas, P R, 1980).
[Formerly known as QUARTZITE WITHIN STRUAN FLAGS.] (Treagus, J E and King, G, 1978) (shown crossing the Lochaber Subgroup boundary).
[Otherwise known as DUNROBIN BAY FORMATION.] The name Dunrobin Bay Formation is used Onshore.
[Formerly known as BEOIL BANDED SCHIST.] (Thomas, P R, 1980).
[Formerly known as PELITE AND SEMIPELITE WITHIN STRUAN FLAGS.] (Treagus, J E and King, G, 1978) (shown crossing the Lochaber Subgroup boundary)
[Formerly known as INCLUDED, UNDIVIDED IN CLONELLY SANDSTONE GROUP (SIMPSON, I.M., 1955).] Not Entered
[Formerly known as DURINE GROUP.] Peach et al., 1907; Phemister, 1960.
[Formerly known as DURLSTON BEDS.] Not Entered
[Formerly known as DUNROSSNESS SPILITIC GROUP.] Not Entered
[Otherwise known as SKURLEY TILL MEMBER & BALANTRATH MEMBERS OF THE BERRIDALE FORMATION.] Hall and Whittington, 1989. This is a member of the Berridale Formation.
[Formerly known as DUNBEATH TILL.] Omand, 1973.
[Formerly known as PART OF CRAFNANT VOLCANIC GROUP.] Not Entered
[Formerly known as DOWSING DOLOMITE FORMATION - Old code was also DWDL.] Not Entered
[Otherwise known as ARGYLL GROUP.] The Whiteness 'Division' of Shetland is largely equivalent to the Argyll Group in mainland Scotland etc.
[Formerly known as CIL-YR-YCHEN LIMESTONE - Old code was CYL.] Name made obsolete in favour of Dowlais Limestone Formation.
[Formerly known as UPPER SEMINULA ZONE (S2) LIMESTONE.] Robertson, 1927.
[Otherwise known as BOTTOM NEDDY MINE.] Not Entered
[Otherwise known as DANDY MINE COAL.] Not Entered
[Formerly known as DANDY MINE.] Not Entered
[Formerly known as DUNGY DRIFT.] Not Entered
[Otherwise known as FIDDLER SHELL BED.] Believed to be lateral equivalents.
[Formerly known as NETHERFIELD LIMESTONE - Old code was NFLM.] Not Entered
[Formerly known as BODEIDDA-DEGANWY MUDSTONE.] Not Entered
[Formerly known as AFON GAM FORMATION.] Equivalent to, and superseded by, Dol-cyn-afon Formation (Rushton, A W A and Howells, M F, 1998. Stratigraphical framework for the Ordovician of Snowdonia and the lleyn Peninsula. British Geological Survey Technical Report RR 98/1)
[Formerly known as CWM HESGEN FORMATION - Old code was CHN.] Allen, P M and Jackson, A A, 1985
[Formerly known as DOL-CYN-AFON MEMBER.] Not Entered
[Formerly known as GLANYPWLL FORMATION.] Not Entered
[Formerly known as PORTHMADOG FORMATION.] Smith, M C, 1988.
[Formerly known as TREMADOC BEDS - Old code was TCB.] Not Entered
[Formerly known as TREMADOC SLATES.] Not Entered
[Formerly known as DYRHAM SILT(S) - Old code was also DYS.] Kellaway, G A, 1960; Stubblefield, C J, 1963; Cave, R, 1977; Donovan, D T and Kellaway, G A, 1984.
[Formerly known as DYRHAM SILTSTONE FORMATION - Old code was also DYS.] Not Entered
[Formerly known as GONERBY MEMBER - Old code was GO.] Not Entered
[Formerly known as MIDDLE LIAS.] Though this term also used in chronostratigraphical sense, = Margaritatus plus Spinatum zones.
[Formerly known as MIDDLE LIAS CLAYS.] Worssam, B C and Bisson, G, 1961.
[Formerly known as MIDDLE LIAS SANDY BEDS.] Richardson, L, 1929, 1933; Richardson, L, Arkell, W J and Dines, H G, 1946.
[Formerly known as MIDDLE LIAS SILTS.] Whittaker, A, 1972.
[Formerly known as MIDDLE LIAS SILTS AND CLAYS.] Edmonds, E A and Wilson, V, 1965.
[Formerly known as WHITECLIFF SAND MEMBER.] Previously treated as part of the Whitecliff Sand Member, into which it passes laterally.
[Otherwise known as DALMAHOY OIL-SHALE.] Not Entered
[Formerly known as EUMORPHOCERAS PSEUDOBILINGUE MARINE BAND - Old code was TPMB.] Not Entered
[Otherwise known as WARLEY WISE MARINE BAND.] Local name, where the marine band overlies the Warley Wise Grit in Lancashire.
[Formerly known as EUMORPHOCERAS BISULCATUM MARINE BAND.] Not Entered
[Formerly known as EARNLEY FORMATION.] (King and King, 1977).
[Formerly known as EARNLEY `DIVISION'.] In part (Curry et al, 1977).
[Formerly known as EAGLE CRAG MEMBER - Old code was also EAGC.] BGS Lexicon entry lacked lithology epithet (Petterson et al. 1992)
[Formerly known as EAGLE CRAG TUFFS AND HONISTER SLATES.] McConnell and Kneller, 1993
[Formerly known as EASINGTON FORMATION - Old code was also EASN.] Not Entered
[Otherwise known as ENVILLE MEMBER.] See Powell et al, 1999.
[Formerly known as ENVILLE BEDS - Old code was also EB.] Not Entered
[Formerly known as BLOWGILL MEMBER.] Considered a separate unit (marine member) by Hemingway and Knox (1973); shown to be equivalent to the Eller Beck Formation by Powell and Rathbone (1983).
[Formerly known as ELLER BECK BED - Old code was also EBB.] Barrow (1877); Fox-Strangways (1892); Hemingway (1949).
[Formerly known as HYDRAULIC LIMESTONE.] Fox-Strangways, 1892.
[Formerly known as EXE BRECCIA - Old code was also EBR.] Not Entered
[Otherwise known as EBCHESTER FORMATION.] Thomas, 1999.
[Otherwise known as SCOTLAND FLAGS.] western Yorkshire equivalent of East Carlton Grit
[Otherwise known as BOGNE HOLLOW CHERT MEMBER.] Possibly equivalent to this member of the Upper Greensand Formation
[Otherwise known as CHERT BEDS.] Not Entered
[Otherwise known as EGGARDON GRIT.] Not Entered
[Formerly known as APESTOR LIMESTONE - Old code was APSL.] Now subsumed within the Ecton Limestone Formation.
[Formerly known as ECTON LIMESTONES FORMATION - Old code was also ECL.] Incorrect spelling
[Formerly known as MIXON LIMESTONES - Old code was MXL.] Aitkenhead and Chisholm, 1982. The Mixon Limestones division was superseded by the Ecton Limestones, but the former term still appears on some maps.
[Formerly known as FLOODPLAIN GRAVELS.] Castleden, 1976.
[Formerly known as EDAY FLAGS - Old code was also EDF.] Not Entered
[Formerly known as ELDROTH GRIT FORMATION - Old code was also EDG.] Treated as a Formation on 1:50000 BGS Sheet 59 (Lancaster) but Rank now reduced to Bed.
[Otherwise known as CROMLIX MUDSTONE FORMATION.] Edzell Mudstone Formation is obsolete and has been replaced by Cromlix Formation on 66E, but may still appear on some published 1:10 000 maps on 66W.
[Formerly known as EDZELL MUDSTONES - Old code was also EDM.] Not Entered
[Formerly known as EDAY MARL - Old code was also EDMA.] Not Entered
[Otherwise known as TEITH SANDSTONE FORMATION.] Contemporaneous with the Teith Sandstone Formation, but is a more proximal alluvial fan facies so not directly comparable.
[Formerly known as EDZELL SANDSTONES - Old code was also EDS.] In part, Carroll, 1995.
[Formerly known as GANNOCHY FORMATION.] Armstrong, M and Paterson, I B, 1970. Includes lower part of Edzell Sandstone Formation.
[Formerly known as ST BEES SHALES.] (In Cockermouth area)
[Formerly known as MIDDLE PERMIAN MARLS.] Not Entered
[Formerly known as PERMIAN MIDDLE MARLS - Old code was MPM.] Not Entered
[Formerly known as EDWALTON FORMATION - Old code was also EDW.] Rank reduced to (local) Member of the Sidmouth Mudstone Formation (Howard et al., 2008).
[Formerly known as EDAY BEDS.] Together with Hoy Sandstone (Mykura, 1976).
[Formerly known as EDAY SANDSTONES.] Not Entered
[Formerly known as HOY SANDSTONE.] Together with Eday Beds (Mykura, 1976).
[Formerly known as ORKNEY SANDSTONE GROUP.] Fletcher, 1996.
[Formerly known as EEMSTELSEL.] Harting, P. 1874. "In" Versl Kon Ak. V. Wet, Afd. N, 2 (8), p.282-290.
[Otherwise known as ROT HALITE MEMBER.] Riddler, 1981.
[Formerly known as ESK EVAPORITE FORMATION - Old code was also EEV.] Not Entered
[Formerly known as KEUPER HALITE.] Raymond, 1953.
[Otherwise known as WYRLEY BOTTOM COAL.] Not Entered
[Formerly known as INLAND SERIES.] Part of the "Inland Series" of Hall and Connell, 1991.
[Formerly known as EAST GRAMPIAN DRIFT GROUP - Old code was also EGD.] Epithet "Drift" revised to "Glacigenic" in line with BGS policy (November 2003)
[Formerly known as EAST GRAMPIAN GLACIGENIC GROUP.] Not Entered
[Formerly known as INLAND SERIES.] Hall, 1984, p.11.
[Formerly known as INLAND TILLS.] Hall and Connell, 1991, p.133-134.
[Formerly known as EDERGOLE SANDSTONE - Old code was also EGS.] Not Entered
[Formerly known as EGGINTON COMMON MEMBER.] Bowen, 1999.
[Formerly known as EGGINTON COMMON SAND AND GRAVEL - Old code was also EGSG.] Not Entered
[Formerly known as HILTON GRAVELS.] Part of the Hilton Gravels of Rice, 1968.
[Formerly known as LOWER HILTON TERRACE.] Part of the lower Holton Terrace deposits of Clayton, 1953.
[Formerly known as EASTGATE FORMATION - Old code was also EGT.] Rolfe, 1960.
[Otherwise known as CLACHGHLAS GRANITE.] This name is preferred as it avoids confusion with the Glen Tilt Intrusive-complex and the vagueness and inaccuracy of the term "East Glen Tilt".
[Formerly known as ALLUVIAL FAN DEPOSITS.] Trotter et al (1937); Eastwood et al (1931); Akhurst et al (1997).
[Formerly known as ALLUVIUM AND RIVER TERRACE DEPOSITS.] Trotter et al (1937); Eastwood et al (1931); Akhurst et al (1997).
[Formerly known as HAWICK GROUP.] Rocks of the Eskdalemuir Formation were previously included in the Hawick Group, undivided, of Webb et al., 1993.
[Formerly known as HAWICK ROCKS.] Rocks of the Eskdalemuir Formation were previously included in the Hawick Rocks of Peach and Horne, 1899.
[Formerly known as EDGTON LIMESTONE - Old code was also EL.] Not Entered
[Otherwise known as COTHALL LIMESTONE MEMBER.] Probably analogous to this member of the Kingsteps Sandstone Formation. Fletcher, 1996.
[Formerly known as CORNSTONE BEDS (OF INVERNESS, NAIRN, BANFF) - Old code was CRNI.] Peacock et al., 1968.
[Formerly known as EILEAN DUBH GROUP.] Peach et al., 1907; Phemister, 1960.
[Formerly known as ELLERKER LIMESTONE MEMBER - Old code was also ELL.] Formerly coded as a Member of the Lincolnshire Limestone Formation.
[Formerly known as HYDRAULIC LIMESTONE.] The Ellerker Limestone is included within the Hydraulic Limestone of previous authors.
[Formerly known as EAST LINTON MEMBER.] Not Entered
[Formerly known as ELDERSFIELD FORMATION.] Not Entered
[Formerly known as ELSWORTH ROCK - Old code was also ELR.] Not Entered
[Formerly known as ELSWORTH ROCK GROUP.] Not Entered
[Formerly known as ELSWORTH SERIES.] Not Entered
[Formerly known as OAKLEY BEDS.] Not Entered
[Formerly known as WEST WALTON BEDS - Old code was WWB.] Not Entered
[Formerly known as ELSHAM SANDSTONE FORMATION - Old code was also ELS.] Formerly coded as a Formation within the Ancholme Group.
[Formerly known as ELTON BEDS - Old code was ELB.] Not Entered
[Formerly known as ELTON GROUP.] Not Entered
[Formerly known as LOWER, MIDDLE AND UPPER ELTON BEDS.] Not Entered
[Formerly known as ELVINGTON GLACIAL LAKE FORMATION - Old code was also ELV.] Initial name, subsequently revised before extensive use.
[Formerly known as SILTS AND CLAYS OF THE VALE OF YORK.] Not Entered
[Formerly known as ELBOW DEPOSITS.] Not Entered
[Formerly known as ELWICK MEMBER - Old code was also ELWK.] Not Entered
[Formerly known as EMBLETON DIORITE - Old code was also EMBL.] Not Entered
[Formerly known as EMBSAY LIMESTONE - Old code was also EML.] Not Entered
[Formerly known as MAIN LIMESTONE.] n.b. This is a local use of this term and not related to the Main Limestone within the Yoredale Group.
[Formerly known as EAGLESHAM LAVAS.] Not Entered
[Otherwise known as FIVE ROADS MARINE BAND.] Local name in parts of the South Wales Coalfield, possibly still in use to some extent.
[Otherwise known as FORAMINIFERA MARINE BAND.] Local name, South Wales Coalfield.
[Otherwise known as KENDRICK MARINE BAND.] Local name in the South Staffordshire Coalfield and Cannock areas, possibly still in use to some extent.
[Otherwise known as LAGRAE MARINE BAND.] Local name in the Sanquhar/New Cumnock area; tentatitive correlation only (Ramsbottom and others, 1978, Fig.14, note 14.2)
[Otherwise known as MANCHESTER MARINE BAND.] Local name in part(s) of the Lancashire Coalfield, possibly still in use to some extent.
[Otherwise known as RISEHOW MARINE BAND.] Local name in the Cumberland [Coalfield] area, possibly still in use to some extent.
[Otherwise known as ROWHURST RIDER MARINE BAND.] Local name, North Staffordshire Coalfield, possibly still in use to some extent.
[Otherwise known as TY CERRYG MARINE BAND.] Local name in the Denbighshire and Flintshire Coalfield, possibly still in use to some extent.
[Otherwise known as VIADUCT MARINE BAND.] Local name, Canonbie [Coalfield] area, possibly still in use to some extent.
[Otherwise known as WEAR MOUTH MARINE BAND.] Northumberland/Durham area.
[Formerly known as FIVE ROADS MARINE BAND - Old code was 5RDMB.] Local name in parts of the South Wales Coalfield, possibly still in use to some extent.
[Formerly known as FORAMINIFERA MARINE BAND - Old code was FORMB.] Local name in parts of the South Wales Coalfield, possibly still in use to some extent.
[Formerly known as KENDRICK MARINE BAND - Old code was KRKMB.] Local name in the South Staffordshire Coalfield and Cannock areas, possibly still in use to some extent.
[Formerly known as LAGRAE MARINE BAND - Old code was LAMB.] Local name in the Sanquhar/New Cumnock area; tentative correlation only [Ramsbottom and others, 1978, Fig.14, note 14.2].
[Formerly known as MANCHESTER MARINE BAND - Old code was MCHMB.] Local name in part(s) of the Lancashire Coalfield, possibly still in use to some extent.
[Formerly known as RISEHOW MARINE BAND - Old code was RHWMB.] Local name in the Cumberland [Coalfield] area, possibly still in use to some extent.
[Formerly known as ROWHURST RIDER MARINE BAND - Old code was RRMB.] Local name, North Staffordshire Coalfield, possibly still in use to some extent.
[Formerly known as TY CERRYG MARINE BAND - Old code was TYCMB.] Local name in the Denbighshire and Flintshire Coalfield, possibly still in use to some extent.
[Formerly known as VIADUCT MARINE BAND - Old code was VMB.] Local name, Canonbie [Coalfield] area, possibly still in use to some extent.
[Formerly known as WEAR MOUTH MARINE BAND - Old code was WMMB.] Local name, Northumberland and Durham coalfield areas, possibly still in use to some extent.
[Formerly known as EXMOUTH FORMATION.] Henson, 1970; Laming, 1982.
[Formerly known as EXMOUTH MUDSTONE AND SANDSTONE MEMBER.] Edwards, 1984.
[Formerly known as EXMOUTH SANDSTONE AND MUDSTONE.] Selwood, et al, 1984.
[Formerly known as EXMOUTH SANDSTONE AND MUDSTONE FORMATION - Old code was ESM.] Henson, 1971.
[Formerly known as EXMOUTH SANDSTONES.] (Laming,1968)
[Formerly known as EXMOUTH SANDSTONES AND MUDSTONES.] Henson, 1972.
[Formerly known as EAGLE MOOR MEMBER.] Bowen, 1999.
[Formerly known as EAGLE MOOR SAND AND GRAVEL - Old code was also EMSG.] Not Entered
[Formerly known as GLACIAL SAND AND GRAVEL.] Part of this unit, which included other component. BGS Sheet 113; Edwards, 1967. Also on Sheet 114 some of these deposits were atributed to Glacial Sand and Gravel, with some attributed to Older River Sand and Gravel (qv).
[Formerly known as HILTON TERRACE DEPOSITS.] Swinnerton, 1937; Clayton, 1953, 1957; Straw, 1963; Jackson, 1977, Gozzard, 1976; Straw and Clayton, 1979.
[Formerly known as OLDER RIVER SAND AND GRAVEL.] Part of the Eagle Moor Sand and Gravel Member was attributed to this unit on BGS Sheet 114.
[Formerly known as UPPER HILTON TERRACE (IN PART).] (Clayton, K M, 1953).
[Formerly known as MIDDLE DALRADIAN GROUP - Old code was also DB.] Not Entered
[Otherwise known as CRINAN GRIT FORMATION.] Probable [?partial] correlatives.
[Formerly known as ARDMORE GRIT - Old code was also DBAG.] Not Entered
[Otherwise known as CRAIGNISH PHYLLITE.] Lateral equivalents. Craignish Phyllite code = DBCP
[Otherwise known as CRAIGNISH PHYLLITE FORMATION.] Probable lateral equivalents.
[Formerly known as ARDRISHAIG PHYLLITE - Old code was also DBAP.] Not Entered
[Formerly known as ASTA SPILITE GROUP - Old code was also DBAS.] Not Entered
[Formerly known as ASTA SPILITIC GROUP - Old code was also DBAS.] Not Entered
[Formerly known as BONAHAVEN DOLOMITE - Old code was also DBBD.] Not Entered
[Formerly known as UPPER CRANA QUARTZITE - Old code was also DBCA.] Not Entered
[Formerly known as CREAGAN GROUP - Old code was also DBCG.] Not Entered
[Formerly known as CARN MAIRG QUARTZITE - Old code was also DBCM.] (Bailey, E B, 1925).
[Otherwise known as ARDRISHAIG PHYLLITE.] Lateral equivalents. Ardrishaig Phyllite code = DBAP
[Otherwise known as ARDRISHAIG PHYLLITE FORMATION.] Probable lateral equivalents.
[Formerly known as CRAIGNISH PHYLLITE - Old code was also DBCP.] Not Entered
[Formerly known as LOWER CRANA QUARTZITE - Old code was also DBCQ.] Not Entered
[Formerly known as CRINAN GRITS - Old code was also DBCR.] Not Entered
[Formerly known as CROAGHUBRID DARK SCHISTS - Old code was also DBCS.] Not Entered
[Formerly known as DEGNISH LIMESTONE - Old code was also DBDL.] Not Entered
[Formerly known as DUNROSSNESS PHYLLITE - Old code was also DBDP.] Not Entered
[Formerly known as DUNROSSNESS PHYLLITIC GROUP - Old code was also DBDP.] Not Entered
[Otherwise known as KYMAH QUARTZITE FORMATION.] Not Entered
[Formerly known as UPPER PART OF DURN HILL QUARTZITE - Old code was also DBDQ.] Read, H H, 1923; Stephenson, D, et al, 1993.
[Formerly known as DUNGIVEN LIMESTONE - Old code was also DBDU.] Not Entered
[Formerly known as PERMIAN EVAPORITE D - Old code was PEVD.] Not Entered
[Otherwise known as CRINAN GRIT.] Not Entered
[Formerly known as ERINS QUARTZITE - Old code was also DBEQ.] Not Entered
[Formerly known as EASDALE SLATE - Old code was also DBES.] Not Entered
[Formerly known as LOWER DEVIL'S BRIDGE MEMBER - Old code was LDB.] Redundant term, subsumed within the DBF.
[Formerly known as MIDDLE DEVIL'S BRIDGE MEMBER - Old code was MDB.] Redundant term, subsumed within the DBF.
[Formerly known as DINAS BRAN BEDS - Old code was also DBG.] Not Entered
[Formerly known as DINAS BRAN GROUP - Old code was also DBG.] Not Entered
[Formerly known as DERBYHAVEN BEDS - Old code was also DBH.] Not Entered
[Formerly known as CLIFT HILLS PHYLLITE - Old code was also DBHP.] Not Entered
[Formerly known as INZIE HEAD GNEISS - Old code was also DBIH.] Not Entered
[Formerly known as KILCHRENAN CONGLOMERATES - Old code was also DBKC.] Not Entered
[Formerly known as KINNAIRDS HEAD GROUP - Old code was also DBKH.] Not Entered
[Otherwise known as DALLABANK LIMESTONE.] Alternative spelling.
[Formerly known as KILLETER QUARTZITE - Old code was also DBKQ.] Not Entered
[Formerly known as KILLIECRANKIE SCHIST - Old code was also DBKR.] (Bailey, E B, 1925).
[Otherwise known as CLAY-WITH-FLINTS.] Not Entered
[Formerly known as LOWER ERINS QUARTZITE - Old code was also DBLE.] Not Entered
[Formerly known as LAPHROAIG QUARTZITE - Old code was also DBLQ.] Not Entered
[Formerly known as TERMON OR MILFORD PELITES - Old code was also DBMI.] Not Entered
[Formerly known as TERMON PELITES - Old code was also DBMI.] Not Entered
[Formerly known as NEWTOWNSTEWART QUARTZITE GROUP - Old code was also DBNQ.] Not Entered
[Formerly known as CARBONACEOUS GROUP.] (General name). (Portsoy Group - district name)
[Formerly known as PORT ASKAIG TILLITE - Old code was also DBPT.] Not Entered
[Formerly known as CASTLEDYKES SANDSTONE - Old code was CSDS.] Not Entered
[Formerly known as CRAIGS BRECCIA - Old code was CGB.] Not Entered
[Formerly known as SHIRA LIMESTONE AND SLATE - Old code was also DBSL.] Not Entered
[Formerly known as SLIEVE TOOEY QUARTZITE - Old code was also DBSO.] Not Entered
[Formerly known as SCHICHALLION QUARTZITE.] (Bailey, E B. 1925).
[Formerly known as SCHIEHALLION QUARTZITE - Old code was also DBSQ.] (Bailey, E B and MaCallien, W J, 1937).
[Formerly known as STONEFIELD SCHIST - Old code was also DBSS.] Not Entered
[Formerly known as SCHICHALLION BOULDER BED.] (Barrow, G, 1905. Bailey, E B, 1925).
[Formerly known as SCHIEHALLION BOULDER BED.] (Bailey, E B and McCallien, W J, 1937).
[Formerly known as DUDDON BRIDGE TUFFS.] Mitchell, 1956.
[Formerly known as TAYVALLICH LIMESTONE - Old code was also DBTL.] Not Entered
[Formerly known as TORR HEAD LIMESTONE - Old code was also DBTR.] Not Entered
[Formerly known as TAYVALLICH SLATE AND LIMESTONE - Old code was also DBTS.] Not Entered
[Formerly known as TAYVALLICH LAVAS.] (Harris, A L and Pitcher, W S, 1975).
[Formerly known as UPPER ERONS QUARTZITE - Old code was also DBUE.] Not Entered
[Otherwise known as WADBISTER NESS FORMATION.] Not Entered
[Formerly known as UPPER DALRADIAN GROUP (NOW SOUTHERN HIGHLAND GROUP) - Old code was also DC.] Not Entered
[Formerly known as LOCH AVICH GRIT - Old code was also DCAG.] Not Entered
[Formerly known as LOCH AVICH LAVAS - Old code was also DCAL.] Not Entered
[Formerly known as ABERFOYLE SLATE - Old code was also DCAS.] Has been used historically for this unit, but not formally defined
[Formerly known as BEINN BHEULA SCHIST - Old code was also DCBB.] Not Entered
[Formerly known as BOYNDIE BAY GROUP - Old code was also DCBD.] Not Entered
[Formerly known as BULLROCK GREYWACKE - Old code was also DCBG.] Not Entered
[Formerly known as BULLROCK GREYWACKE FORMATION - Old code was also DCBG.] Not Entered
[Formerly known as DOWN CLIFF CLAY.] Buckman, 1922.
[Formerly known as DOWN CLIFFS CLAY.] Buckman, 1922.
[Formerly known as DUNOON PHYLLITE - Old code was also DCDP.] Not Entered
[Formerly known as DART SCHISTS - Old code was also DCDS.] Not Entered
[Otherwise known as SOUTHERN HIGHLAND GROUP.] The Clift Hills 'Division' of Shetland is at least partially equivalent to the Southern Highland Group of mainland Scotland etc.
[Formerly known as GREEN BEDS - Old code was also DCGB.] Not Entered
[Formerly known as GLENELLY GREENBEDS - Old code was also DCGG.] Not Entered
[Formerly known as GLEN SLUAN SCHIST - Old code was also DCGS.] Not Entered
[Formerly known as VOLCANIC ROCKS AND BLACK SHALES (HIGHLAND BORDER SERIES) - Old code was also DCHV.] Not Entered
[Formerly known as DENBURY CRINOIDAL LIMESTONE - Old code was also DCL.] Not Entered
[Formerly known as ABERFOYLE SLATES - Old code was DCAS.] Not Entered
[Formerly known as LOCH RANZA SLATE - Old code was also DCLS.] Not Entered
[Formerly known as MULLAGHCARN SCHISTS - Old code was also DCMG.] Not Entered
[Formerly known as MARGIE LIMESTONE - Old code was also DCML.] Formerly listed as a 'bed' within the Margie Formation: Pringle, 1941; Gould, 2001.
[Otherwise known as REPLACED BY MACDUFF FORMATION [MCD].] Not Entered
[Formerly known as NORTH SANNOX GRITS.] Not Entered
[Formerly known as DEBRIS CONE - Old code was also DCON.] Name changed in line with Rock Classification Scheme terminology.
[Formerly known as PITLOCHRY SCHIST.] (Barrow, G, et al, 1905).
[Formerly known as ROSEHEARTY GROUP - Old code was also DCRG.] Not Entered
[Formerly known as RUNABAY HEAD FORMATION - Old code was also DCRH.] Not Entered
[Formerly known as DOWNTON CASTLE SANDSTONE GROUP.] Ball, 1951
[Formerly known as DOWN CLIFF SANDS.] Not Entered
[Formerly known as LAMINATED BEDS.] Woodward, H B, 1893.
[Formerly known as NOW PART OF DRUIM AN FHUARAIN MEMBER?.] Equivalence currently uncertain.
[Formerly known as BEDS 1 AND 2 IN CROVIE GROUP.] (Read, 1923).
[Formerly known as CROVIE CONGLOMERATE.] Not Entered
[Formerly known as CROVIE SANDSTONE.] Not Entered
[Formerly known as DUNDARG CASTLE CONGLOMERATE.] Not Entered
[Formerly known as DUNDARY CASTLE SANDSTONE FORMATIONS.] Not Entered
[Formerly known as FLECKIES MEADOW CONGLOMERATE.] Not Entered
[Otherwise known as CLIFT HILLS 'DIVISION'.] The Saxa Vord Group of Unst is equivalent to the Clift Hills 'Division' of the Shetland Mainland, and both are largely equivalent to the Southern Highland Group.
[Formerly known as PO HOUSE TUFFS (PART).] Not Entered
[Formerly known as TAYVALLICH VOLCANICS - Old code was also DCTV.] Not Entered
[Formerly known as BASEMENT BEDS.] Ussher, 1887.
[Formerly known as BASEMENT FORMATION (PARS).] These rocks were part of the Basement Formation of Swarbrick, 1962)
[Formerly known as DODDISCOMBE BEDS - Old code was also DDC.] Formational Rank confirmed. (Webby and Thomas, 1965)
[Formerly known as LANDKEY FORMATION.] Jackson, 1991
[Formerly known as LOWER CULM MEASURES (PARS).] Ussher, 1900
[Formerly known as PILTON BEDS (PARS).] These rocks were part of the Pilton Beds of Prentice, 1960.
[Formerly known as PILTON SHALES (PARS).] These rocks were part of the Pilton Shales of Edmonds et al. 1979.
[Formerly known as DURA DEN FORMATION - Old code was also DDF.] Downgraded rank from Formation to Member status.
[Formerly known as BED 6 (PART OF MARKER BEDS).] George, 1954.
[Formerly known as CLYDACH BEDS.] The member was part of the former Clydach Beds of George et al, 1976.
[Otherwise known as YARD COAL.] May be equivalent.
[Formerly known as DERSINGHAM BEDS - Old code was also DEB.] Casey and Gallois, 1984;1994.
[Formerly known as SANDRINGHAM SANDS.] [pars] Whitaker and Jukes-Browne, 1899.
[Formerly known as TYWI FORMATION.] Some of the deposits now included in the Dee Valley Formation were possibly included in the Tywi Formation of Bowen, 1999.
[Formerly known as DUNDEE FORMATION - Old code was also DEF.] Francis et al., 1970; Armstrong and Paterson, 1970, which includes several informal fish beds/members such as the Kelly Den member.
[Formerly known as ORTHIS LIMESTONE.] Fearnsides, 1905.
[Formerly known as BASEMENT BEDS.] Included in "Basement Beds", Wedd, C B, et al, 1923, in previous geological surveys. Name first defined by Thompson, D B, 1970a.
[Formerly known as HELSBY SANDSTONE FORMATION.] Included in Helsby Sandstone Formation, Earp, R and Taylor, B J, 1986, in previous geological surveys. Name first defined by Thompson, D B, 1970a.
[Formerly known as DERI BEDS.] Howell and Cox, 1924.
[Formerly known as LLYNFI BEDS AND RHONDDA BEDS.] These rocks were includes in the Llynfi Beds and the Rhondda Beds by Downing and Squirrell, 1965; Squirrell and Downing, 1969; Barclay, 1989.
[Formerly known as DENBIGH(SHIRE) GRITS - Old code was DG.] Not Entered
[Formerly known as FYNDDOG GRITS.] Not Entered
[Formerly known as DYFFRYN FLAGS.] Lapworth, 1900.
[Formerly known as DYFFRYN FLAGS FACIES - Old code was also DFN.] Not Entered
[Formerly known as DYFFRYN FLAGS FACIES FORMATION - Old code was also DFN.] Not Entered
[Otherwise known as WHITEHOUSE LIMESTONE.] Correlated horizon.
[Formerly known as DENBIGH GRITS GROUP - Old code was also DG.] Warren et al., 1984.
[Otherwise known as DOLGELLAU FORMATION.] Not Entered
[Otherwise known as COALBURN ELL COAL.] Not Entered
[Formerly known as SHELLY SANDS AT 50FT OD.] Possibly equivalent to part of the 'shelly sands at 50ft OD' Trotter et al. 1937
[Formerly known as BLOWN SAND.] On all existing 50k geological maps covering Cumbria and Lancashire coast.
[Formerly known as DOGGER.] Not Entered
[Formerly known as DOGGER IRONSTONE.] Not Entered
[Formerly known as DUDGEON SALIFEROUS FORMATION - Old code was also DGSL.] Not Entered
[Otherwise known as COALBURN SMITHY COAL.] Not Entered
[Formerly known as DOLGAU MUDSTONE FORMATION - Old code was also DGU.] Not Entered
[Formerly known as DOLGAU MUDSTONES - Old code was also DGU.] Not Entered
[Formerly known as DUNGEON GHYLL MEMBER - Old code was also DGY.] BGS Lexicon entry lacked lithology epithet.
[Formerly known as DUDDON HALL TUFFS.] Firman, 1957.
[Formerly known as LOWER TILBERTHWAITE TUFFS.] Mitchell, 1940.
[Formerly known as DALE HEAD MEMBER - Old code was also DHD.] Lithological epithet added (D Millward) 05/03/2003.
[Formerly known as DUCHRAY HILL GNEISS - Old code was DBDH.] Not Entered
[Formerly known as DOLLIS HILL GRAVEL FORMATION - Old code was also DHGR.] Not Entered
[Formerly known as DADDYHOLE LIMESTONE - Old code was also DHL.] Not Entered
[Formerly known as DUMDRUFF HILL LAVAS.] Not Entered
[Formerly known as DOON HILL CONGLOMERATE - Old code was also DHLC.] Not Entered
[Otherwise known as ASHTON SHALE MEMBER.] These terms are probably partially equivalent.
[Formerly known as ASHTON FORMATION.] Chesher, 1968.
[Formerly known as ASHTON SHALE MEMBER.] Edwards and Scrivener, 1999.
[Formerly known as CRACKINGTON FORMATION (PARS).] These rocks were part of the Crackington Formation of Edmonds et al, 1985.
[Formerly known as DOWHILLS BEDS - Old code was also DHLS.] Webby and Thomas, 1965.
[Formerly known as DOGHOLE MINE ROCK - Old code was also DHMR.] Not Entered
[Formerly known as UPPER PART OF BED A.] (Howell and Geikie, 1861).
[Formerly known as UPPER PART OF BED B.] (Peach and Horne, 1899).
[Formerly known as UPPER PART OF BEDS AT B.] (Henderson and Brown, 1870).
[Formerly known as UPPER PART OF RESERVOIR BEDS AND DEERHOPE BURN FLAGSTONES.] Mykura and Smith in Mitchell and Mykura, 1962.
[Formerly known as UPPER PART OF RESERVOIR FORMATION AND LOWER PART OF DEERHOPE FORMATION.] (Tipper, 1976).
[Formerly known as DUG HEAD SANDSTONE MEMBER - Old code was also DHS.] It appears that the previous entry, inherited from the predecessor of the Lexicon, was a mis-spelling of the actual name.
[Formerly known as DROITWICH HALITE FORMATION - Old code was also DHT.] Warrington, and others, 1980.
[Formerly known as KEUPER SALIFEROUS BEDS - Old code was UKSB.] Poole and Williams, 1981.
[Formerly known as DICKY HARE COVE FLAGS.] Stephenson, D, et al, 1993, named it Dicky Hare Cove Flags and included it in the Findlater Flag Formation.
[Formerly known as DICKY HARE MEMBER - Old code was also DICH.] Not Entered
[Formerly known as WEST SANDS MICA SCHIST.] Read, H H, 1923, considered it to be a western outcrop of the West Sands Mica Schist, repeated by faulting.
[Formerly known as BELEMNITIFEROUS AND MICACEOUS MARLS (UPPER PART).] Wilson and others, 1958
[Formerly known as LOWER LIAS MARLS (UPPER PART).] Kellaway and Wilson, 1941
[Otherwise known as REPLACED BY COWIE HARBOUR SILTSTONE MEMBER [CHSI].] Not Entered
[Formerly known as UPPER PELITE.] Shepherd, 1970; Wilson, 1975.
[Formerly known as DISEWORTH MEMBER - Old code was also DIS.] See Revision notes.
[Otherwise known as EARTHY DELF.] Discovery Coal is local seam name . Earthy Delf is coalfield seam name
[Formerly known as DRUMLISH FORMATION.] Not Entered
[Formerly known as DRUMMOCK BEDS.] Not Entered
[Formerly known as DRUMMOCK GROUP - Old code was also DKG.] Re-ranked as Subgroup following Fortey et al., 2000.
[Formerly known as TRILOBITE SHALE.] Not Entered
[Formerly known as DRUMKEERAN SILTSTONE FORMATION - Old code was also DKSF.] This term, pre-used in the south of Ireland, was used on the Kesh sheet with the same code
[Formerly known as INCLUDED AS PART OF THE CLONELLY SANDSTONE GROUP.] Simpson, I M. 1955.
[Formerly known as DEVOKE WATER MEMBER - Old code was also DKT.] Not Entered
[Formerly known as BLEA WYKE BEDS - Old code was also BW.] Davies, G M, 1929.
[Formerly known as BLEA WYKE SANDS.] Hemingway, J E, 1974.
[Formerly known as BLEA WYKE SERIES.] Fox-Strangways, C and Barrow, G, 1915.
[Formerly known as BLUE WICK SANDS.] Tate, R and Blake, J F, 1876.
[Formerly known as UPPER LIAS (PART).] Not Entered
[Formerly known as BLISWORTH CLAY MEMBER.] Of the obsolete GLENTHAM FORMATION (Gaunt et al., 1992).
[Formerly known as GREAT OOLITE CLAY - Old code was GOC.] Sharp, 1870, as modified by Arkell, 1933 and herein.
[Formerly known as BEWCASTLE BEDS - Old code was also BWCB.] Day, 1970.
[Formerly known as LLANBEDROG GRITS.] Matley, C A, 1938.
[Formerly known as PENARWEL DRIVE BEDS.] Fitch, F J. 1967.
[Formerly known as BOWHILLS MEMBER - Old code was also BWH.] Not Entered
[Formerly known as GREAT OOLITE LIMESTONE - Old code was GOL.] Judd, 1875; Torrens, 1967.
[Formerly known as SNITTERBY LIMESTONE FORMATION - Old code was SNL.] Gaunt et al., 1992.
[Formerly known as WHITE LIMESTONE - Old code was WHL.] Cripps,1986.
[Otherwise known as BARONWOOD MEMBER.] Of the Penrith Formation of Bowen et al., 1999.
[Formerly known as GLACIOFLUVIAL SAND AND GRAVEL.] Not Entered
[Formerly known as THE UPPER TUFFS.] Green, J F N, 1913
[Otherwise known as TOP HARD COAL (NOTTS AND BELVOIR).] Not Entered
[Otherwise known as SUBDIVISION OF WHEATWORTH COAL (WWC).] Not Entered
[Formerly known as BEN WYVIS PELITE.] Holdsworth, 1994.
[Formerly known as BEN WYVIS PELITIC SCHIST.] Wilson, 1975; Grant, 1989.
[Otherwise known as BALLANTRAE COMPLEX.] Bluck, 1978.
[Otherwise known as BALLANTRAE OPHIOLITE.] Church and Gayer, 1973.
[Formerly known as BALLANTRAE IGNEOUS COMPLEX.] Balsillie, 1932.
[Formerly known as BALLANTRAE IGNEOUS SERIES.] Williams, 1962.
[Formerly known as BALLANTRAE OPHIOLITE.] See Alternative Name.
[Formerly known as GIRVAN - BALLANTRAE COMPLEX.] Bloxham, 1954.
[Formerly known as BASAL CLASTICS.] Not Entered
[Formerly known as CALCIFEROUS SANDSTONE.] Not Entered
[Formerly known as LOWER CARBONIFEROUS SANDSTONE.] Not Entered
[Formerly known as WHITEHAVEN SANDSTONE.] Eastwood, T, et al, 1931.
[Formerly known as BRESSAY FLAGSTONES - Old code was also BYF.] Not Entered
[Formerly known as BUCKLEBURY GRAVEL - Old code was also BYGR.] Not Entered
[Formerly known as PLATEAU GRAVEL.] Not Entered
[Formerly known as BYLEY MUDSTONE FORMATION - Old code was also BYM.] Not Entered
[Formerly known as KEUPER MARL, MIDDLE - Old code was MKM.] Lower half (Formal). Middle division of Mercia Mudstone Group. (Lower half) (Informal).
[Formerly known as BRYN BRITH BEDS.] Cox and Wells, 1921, 1927.
[Formerly known as BRYN BRITH GRITS.] Cox and Wells, 1921, 1927.
[Formerly known as BYNE HILL GRANITE.] Not Entered
[Formerly known as BAGGY AND MARWOOD BEDS - Old code was BMB.] Made obsolete following full definition of Baggy Sandstones Formation.
[Formerly known as BAGGY AND MARWOOD SLATES.] Not Entered
[Formerly known as BAGGY BEDS.] Ussher, 1879.
[Formerly known as MARWOOD BEDS.] Not Entered
[Formerly known as BECKLEY SANDS - Old code was also BYSA.] Arkell, 1942.
[Formerly known as BERKSHIRE OOLITE SERIES - Old code was BOS.] In the south, may include the units of the above; e.g. Arkell, 1947.
[Formerly known as HIGHWORTH FORMATION.] In the south, may include the units of the above; e.g.Coe, 1995.
[Formerly known as LOWER CALCAREOUS GRIT - Old code was LCG.] Part of.
[Formerly known as LOWER CORALLIAN - Old code was LCR.] Not Entered
[Formerly known as BYTHAM FORMATION - Old code was also BYTH.] Not Entered
[Formerly known as BYTHAM SANDS AND GRAVELS FORMATION - Old code was also BYTH.] Not Entered
[Formerly known as BLYTH MEMBER.] [sic.] of the Kirkhill Formation, of Sutherland, 1999.
[Formerly known as BYTH TILL.] Hall et al., 1995.
[Formerly known as BYTH TILL FORMATION.] Merritt, Connell and Bridgland, 2000.
[Formerly known as BANGLEY MEMBER.] McAdam and Tulloch (1985).
[Otherwise known as NEWHILL COAL.] Not Entered
[Formerly known as CARSTONE - Old code was also CA.] Not Entered
[Formerly known as CARSTONE GRIT.] of the Langton Series (Swinnerton, 1935, Penny and Rawson, 1969).
[Formerly known as CARSTONE GRIT OF THE LANGTON SERIES.] Not Entered
[Formerly known as LANGTON SERIES.] Named units within this Unit - cf "Sand and Clay" and "Carstone Grit" (Swinnerton, 1935, Penny and Rawson, 1969).
[Formerly known as LOWER CARSTONE.] The lower part of the Formation; informal Member.
[Formerly known as SAND AND CLAY.] of the Langton Series (Swinnerton, 1935, Penny and Rawson, 1969).
[Formerly known as THORESWAY SAND.] Dikes and Lee, 1837.
[Formerly known as UPPER CARSTONE.] The upper part of the Formation; informal Member.
[Formerly known as CABRACH SANDSTONE - Old code was CABS.] Not Entered
[Otherwise known as CAERFAI BAY SHALES FORMATION.] The spelling "Cairfai" is incorrect; hence theis entry is rendered obsolete in favour of CFBS.
[Otherwise known as CORNBRASH FORMATION AND CAYTON SHALE FORMATION [UNDIFFERENTIATED].] The original name/code combination was inverted stratigraphically and this is now revised, putting the Cornbrash first, for consistency.
[Otherwise known as ENVILLE MEMBER.] Now considered to be synonymous with the Enville Member of the Salop Formation (Powell et al, 1999).
[Formerly known as CADDER CLAY MEMBER - Old code was also CADR.] Formerly erroneous Lexicon entry.
[Formerly known as CADDER FORMATION - Old code was also CADR.] Not Entered
[Formerly known as CADDER SAND FORMATION - Old code was also CADR.] Not Entered
[Otherwise known as CLEVELAND - ARMATHWAITE DYKE. CLEVELAND DYKE ON BGS PUBLISHED MAPS..] Macdonald, et al. 1988.
[Formerly known as CLEVELAND, COCKFIELD AND ARMATHWAITE DYKE.] Teall, 1884.
[Formerly known as CLEVELAND-ARMATHWAITE-BARASSIE-STEVENSON-GREAT CUMBRAE-TOWARD POINT DYKE.] Holmes & Harwood, 1929.
[Formerly known as CAERKETTON GROUP - Old code was also CAE.] Mykura, 1960; Peach et al, 1910
[Formerly known as CAERKETTON VOLCANIC GROUP.] Not Entered
[Formerly known as WENLOCK BEDS.] Strahan and Cantrill, 1902.
[Otherwise known as BEN LUI SCHIST FORMATION.] (SH65E)
[Otherwise known as QUEEN'S HILL GNEISS FORMATION.] (SH65E)
[Otherwise known as WAUNFFYNNOCAU COAL [SOUTH WALES COALFIELD].] Not Entered
[Formerly known as BANDED GROUP WITHIN BLAIR ATHOLL SUBGROUP.] Smith, R A and Harris, A L, 1976. Treagus, J E and King, G, 1978.
[Formerly known as BANDED SCHIST WITHIN BLAIR ATHOLL SUBGROUP.] (British Geological Survey Sheet 55E).
[Formerly known as BANDED SERIES WITHIN PALE GROUP OF BLAIR ATHOLL SERIES.] (Bailey, E B, 1925. Bailey, E B and McCallien, W J, 1937).
[Formerly known as BUNGALOW FORMATION.] The unit includes the upland blanket peat of the Bungalow Formation of Thomas (1999).
[Otherwise known as GOURDON SANDSTONE FORMATION.] Obsolete name replaced by GNF (Browne et al, 2001).
[Formerly known as CARNETHY AND HILLEND GROUP - Old code was also CAHI.] (Mykura, 1960, Peach et al, 1910)
[Formerly known as CARNETHY AND HILLEND VOLCANIC FORMATION.] Not Entered
[Otherwise known as CALEDONIAN IGNEOUS SUPERSUITE.] Not Entered
[Otherwise known as GALDENOCH FORMATION.] Galdenoch Formation [GDF] is the senior sysnonym of Cairnerzean Formation (Floyd, 1996).
[Otherwise known as BLUE TOUR LIMESTONE.] Not Entered
[Formerly known as ARDEN LIMESTONE.] Redundant full synonym.
[Formerly known as DYKENEUK LIMESTONE.] Redundant full synonym.
[Formerly known as GAIR LIMESTONE.] Redundant full synonym.
[Formerly known as GARNKIRK LIMESTONE.] Redundant full synonym.
[Formerly known as HIRST LIMESTONE.] Redundant full synonym.
[Formerly known as JANET PEAT LIMESTONE.] Redundant full synonym.
[Formerly known as ROBROYSTON LIMESTONE.] Redundant full synonym.
[Formerly known as NEWER DRIFT.] Not Entered
[Otherwise known as TOP [UNDIFFERENTIATED] PART OF THE BALLYTOBER SANDSTONE FORMATION.] GSNI, 2001
[Formerly known as LOWER PERMIAN SANDSTONE.] The undifferentiated top part (only) of the former Lower Permian Sandstone. Penn, 1983.
[Otherwise known as BAY MARINE BAND.] Local name in the North Staffordshire Coalfield.
[Otherwise known as DOWN HILL MARINE BAND.] Local name in Northumberland and Durham, possibly still to an extent in current use.
[Otherwise known as PRESTWICH TOP MARINE BAND.] Local name in part(s) of the Lancashire Coalfield, particularly the area around Prestwich.
[Otherwise known as RIBBINGS MARINE BAND.] Local name in the Canonbie Coalfield.
[Otherwise known as ST HELEN'S MARINE BAND.] Local name in Cumbria, possibly still to an extent in current use.
[Otherwise known as TOP MARINE BAND.] Local name in Derbyshire, Nottinghamshire and Yorkshire coalfields.
[Otherwise known as UPPER CWMGORSE MARINE BAND.] South Wales Coalfield, local name.
[Otherwise known as UPPER SANKEY MARINE BAND.] Local name in part(s) of the Lancashire Coalfiled, particularly the St Helens area.
[Otherwise known as WINTERBOURNE MARINE BAND.] Local name in the Bristol/Somerset Coalfield.
[Formerly known as BAY MARINE BAND - Old code was BAYMB.] Local name in the North Staffordshire Coalfield.
[Formerly known as DOWN HILL MARINE BAND - Old code was DHMB.] Local name in Northumberland and Durham, possibly still to an extent in current use.
[Formerly known as PRESTWICH TOP MARINE BAND - Old code was PWTMB.] Local name in part(s) of the Lancashire Coalfield, particularly the area around Prestwich.
[Formerly known as RIBBINGS MARINE BAND - Old code was RIBMB.] Local name in the Canonbie Coalfield.
[Formerly known as ST HELEN'S MARINE BAND - Old code was STHMB.] Local name in Cumbria, possibly still to an extent in current use.
[Formerly known as TOP MARINE BAND - Old code was TOPMB.] Local name in Derbyshire, Nottinghamshire and Yorkshire coalfields.
[Formerly known as UPPER CWMGORSE MARINE BAND - Old code was UCGMB.] South Wales Coalfield, local name.
[Formerly known as UPPER SANKEY MARINE BAND - Old code was USYMB.] Local name in part(s) of the Lancashire Coalfiled, particularly the St Helens area.
[Formerly known as WINTERBOURNE MARINE BAND - Old code was WBNMB.] Local name in the Bristol/Somerset Coalfield.
[Formerly known as GLAUCONITIC AND MICACEOUS SANDS OF THE ZONE OF MORTONICERAS INFLATUM.] White, 1923.
[Formerly known as CROISAPHUILL GROUP.] Peach et al., 1907; Phemister, 1960.
[Formerly known as CARSPHAIRN RUDITE FORMATION.] (Holroyd, 1978)
[Formerly known as LOWER PART OF PORTSOY GROUP.] Read, H H, 1923.
[Formerly known as CALETTWR QUARTZITE - Old code was also CAQ.] Not Entered
[Formerly known as CARSE CLAY (UNDIVIDED).] Not Entered
[Formerly known as CARLINDEN FORMATION - Old code was also CARL.] Not Entered
[Formerly known as LOWER RED SHALES.] Wilson and Hinxman, 1890, p.27.
[Formerly known as CARMICHAEL BURN GROUP.] Not Entered
[Formerly known as EASTGATE FORMATION.] of Rolfe, 1960
[Formerly known as FENCE CONGLOMERATE.] Not Entered
[Formerly known as KIRKHILL CONGLOMERATE.] Not Entered
[Formerly known as NEWSIDE ARENITE.] Not Entered
[Formerly known as CRAIGENBUSH LIMESTONE.] Castlecary has been used from before 1879 (see Scottish Sheet 31 Sheet Explanation).
[Formerly known as LEVENSEAT LIMESTONE.] Castlecary has been used from before 1879 (see Scottish Sheet 31 Sheet Explanation).
[Formerly known as CASTLE ESPIE LIMESTONE FORMATION - Old code was also CASP.] Former Lexicon entry of unknown lineage.
[Formerly known as BROWN CLAY WITH STONES.] Not Entered
[Formerly known as "LOWER RIVER TERRACE DEPOSITS".] BGS Sheet 115.
[Formerly known as CASTLE MEMBER.] Bowen, 1999.
[Formerly known as SOUTHREY TERRACE DEPOSITS.] Part of. These deposits also include the older Thorpe Sand and Gravel Member. Straw, 1958.
[Formerly known as TATTERSHALL-KIRKBY TERRACE DEPOSITS.] Part of. These deposits also include the older Thorpe Sand and Gravel Member.
[Formerly known as BRAIDON BAY CONGLOMERATE MEMBER - Old code was BBCO.] Obsolete term (Browne et al, 2001)
[Formerly known as CHAPEL DEN CONGLOMERATE FORMATION - Old code was CDC.] Obsolete term replaced by CATC (Browne et al, 2001)
[Formerly known as JOHNSHAVEN AND ROUEN FORMATIONS.] Armstrong, M and Paterson, I B, 1970. Including the former St. John's Knap Sandstoone Formation, Barras Conglomerate Formation, Chapel Den Conglomerate Formation and Three Wells Sandstone Formation.
[Formerly known as CORTON TILL.] As used by Arthurton et al., 1994.
[Formerly known as NORWICH BRICKEARTH.] Lunkka, 1994.
[Formerly known as GLANRAFON BEDS.] Not Entered
[Formerly known as CALDECOTE VOLCANIC SERIES - Old code was also CAV.] NEW NAME INCLUDES ALL OF LATTER.
[Formerly known as CAWDALE MEMBER - Old code was also CAWD.] Lithological epither added [D Millward] 10/03/2003.
[Formerly known as ABBOTSBURY CORNBRASH FORMATION.] Page, 1989.
[Formerly known as CORN BRASH - Old code was also CB.] Smith, 1817.
[Formerly known as CORNBRASH.] Smith, 1817.
[Formerly known as CORNBRASH LIMESTONE MEMBER.] Wright, 1977.
[Formerly known as BRAND SERIES.] (Watts, W W, 1947).
[Formerly known as CONKSBURY BRIDGE BASALT - Old code was also CBB.] Not Entered
[Formerly known as CONKSBURY BRIDGE LAVA.] Walters and Ineson, 1981; Aitkenhead et al., 1985.
[Formerly known as CRESSBROOK DALE LAVA - Old code was also CBDL.] Stevenson and Gaunt, 1971.
[Formerly known as PERMIAN EVAPORITE C - Old code was PEVC.] Not Entered
[Formerly known as CROSSBRAE FARM PEAT BED.] Merritt, Connell and Bridgland. 2000.
[Formerly known as CROSSBRAE MEMBER.] of the Kirkhill Formation of Sutherland, 1999.
[Formerly known as CROSSBRAE MEMBER, KIRKHILL FORMATION.] Sutherland. 1999.
[Formerly known as CROSSBRAE PEAT.] Hall, 1984; Connell and Hall, 1987; Hall and Connell, 1991.
[Formerly known as CAMBRIDGE BED.] See Edmonds and Dinham (1965), Jukes-Brown (1875) and Hart (1973) for discussions.
[Formerly known as CHLORITIC MARL.] Not Entered
[Formerly known as COPROLITE BED.] Not Entered
[Formerly known as GLAUCONITIC MARL.] Not Entered
[Formerly known as NODULE BED.] Not Entered
[Formerly known as PHOSPHATE BED.] Not Entered
[Formerly known as CROSSBRAE GELIFLUCTATE.] Connell and Hall. 1987; Hall and Connell, 1991.
[Formerly known as CROSSBRAE GELIFLUCTATE BED.] Merritt, Connell and Bridgland. 2000.
[Formerly known as CROSSBRAE HEAD.] Hall, 1984.
[Formerly known as HANGING ROCKS CONGLOMERATE MEMBER - Old code was also CBHR.] Moseley and Ford, 1985.
[Formerly known as CLAYBAND IRONSTONE FORMATION - Old code was also CBIF.] Rank reduced to Member 24/12/2003 [C N Waters].
[Formerly known as CLAYBAND IRONSTONE MEASURES.] Earp & Calver, 1961.
[Formerly known as BLACKBROOK BEDS.] Not Entered
[Formerly known as BLACKBROOK FORMATION.] (Worssam, B C and Old, R A, 1988).
[Formerly known as BLACKBROOK SERIES.] (Watts, W W, 1947).
[Otherwise known as HURLET LIMESTONE.] Supposed equivalents.
[Otherwise known as SWINSTONE MIDDLE MARINE BAND.] Local name, Stainmore.
[Formerly known as CUMBRIENSE MARINE BAND - Old code was also CBMB.] Not Entered
[Formerly known as GASTRIOCERAS CUMBRIENSE MARINE BAND - Old code was also CBMB.]
[Formerly known as CABAN CONGLOMERATE FORMATION (FORMERLY FACIES) - Old code was also CBN.] Not Entered
[Formerly known as CABAN CONGLOMERATES.] Lower and Upper of Lapworth (1900).
[Formerly known as DRYGARN CONGLOMERATE (OBSOLETE NAME AND CODE: USE CBN) - Old code was DNC.] Not Entered
[Formerly known as TRENT FORMATION + GLEN PARVA FORMATION.] Elliott, 1961; Warrington et al, 1980
[Formerly known as WENLOCK SHALE - Old code was WEN.] Not Entered
[Formerly known as SWITHLAND CAMP CONGLOMERATE MEMBER.] Worssam & Old, 1988.
[Otherwise known as SWITHLAND FORMATION.] Not Entered
[Formerly known as STABLE PIT QUARTZITE MEMBER.] Not Entered
[Formerly known as CROSSBRAE TILL FORMATION.] Merritt, Connell and Bridgland. 2000.
[Formerly known as LOWER DIAMICTON.] Whittington et al. 1998.
[Formerly known as TILL WITH NORTHWEST-SOUTHEAST FABRIC.] Hall and Connell. 1991.
[Formerly known as CHIRBURY FORMATION.] Not Entered
[Formerly known as CHIRBURY SERIES.] Not Entered
[Otherwise known as CORLEY SANDSTONE.] See Powell et al, 1999.
[Formerly known as CENTRAL CUMBRIA DRIFT GROUP.] The deposits now assigned to the Subgroup were formerly considered within this now obsolete Group.
[Formerly known as CUSHENDUN CONGLOMERATE - Old code was also CCC.] Not Entered
[Formerly known as CALLANDER CRAIG CONGLOMERATE.] Not Entered
[Formerly known as CAIRNFIELD ACTINOLITIC FLAGS.] Peacock et al. 1968. Also includes Crathie Point Calcareous 'Group' and Garron Point Actinolitic Schists of Read (1923), both now given member status.
[Formerly known as CRAIGHEAD LIMESTONE - Old code was also CRDL.] Confirmed as a Formation.
[Formerly known as (PART OF THE) LOWER OLD RED SANDSTONE - Old code was LORS.] Eyles et al., 1949.
[Formerly known as BIFIDUS SLATES.] Jones, 1933.
[Formerly known as CROGENEN SLATES.] Cox and Wells, 1921; 1927.
[Formerly known as MOELYN SLATES.] Cox and Wells, 1921; 1927.
[Otherwise known as BACTON MEMBER.] Uppermost of the four members of the Formation.
[Otherwise known as RUNTON MEMBER.] Second lowest of four members of the Formation.
[Otherwise known as SHERINGHAM MEMBER.] Lowest of four members of the Formation.
[Otherwise known as WEST RUNTON MEMBER.] Third highest of four members of the Formation.
[Formerly known as ARCTIC FRESHWATER BED.] Of Reid,1882, is part of the Bacton Member of the Formation.
[Formerly known as FOREST BED.] Of Reid, 1882, is part of the Sheringham Member of the Formation.
[Formerly known as LOWER FRESHWATER BED.] Of Reid, 1882, is part of the Sheringham Member of the Formation.
[Formerly known as UPPER FRESHWATER BED.] Of Reid, 1882, is part of the West Runton Member of the Formation. Also known as WEST RUNTON FRESHWATER BED.
[Formerly known as WEST RUNTON FRESHWATER BED.] Of Reid, 1882, is part of the West Runton Member of the Formation. Also known as UPPER FRESHWATER BED.
[Formerly known as WOMAN HITHE CLAY.] Of Reid, 1882, is part of the Runton Member of the Formation.
[Formerly known as CRAWFORDJOHN ESSEXITE.] Not Entered
[Formerly known as CRINIOD GRIT - Old code was also CRG.] Not Entered
[Formerly known as CRAG HILL LIMESTONE - Old code was also CRHL.] Not Entered
[Formerly known as CRINKLE MEMBER - Old code was also CRK.] Lithological epithet added (D Millward) 03/03/2003.
[Formerly known as CRINKLE TUFFS.] Branney and others, 1992; Branney and others, 1993.
[Formerly known as CARRICKMORE MARINE BAND - Old code was CKMB.] Not Entered
[Formerly known as VOLCANIC 'GROUP' OF THE LOWER OLD RED SANDSTONE.] Eyles et al., 1949.
[Formerly known as CRICKLEY LIMESTONE AND CRICKLEY ONCOLITE.] Mudge, D C, 1978a. Combined members.
[Formerly known as FROCESTER HILL OOLITE AND SELSEY HILL OOLITE.] Mudge, D C, 1978a. Provisionally taken to include combined members, in the Stroud to Wotton-under-Edge area.
[Formerly known as LOWER LIMESTONE AND PEA GRIT.] Combined Lower Limestone and Pea Grit proper of Witchell, E, 1882.
[Formerly known as PEA GRIT SERIES.] Arkell, W J, 1933, p.204.
[Otherwise known as GULLY OOLITE FORMATION.] Not Entered
[Formerly known as MANX GROUP UNDIVIDED AND AGNEASH GRITS.] Geological Survey, 1898; Lamplugh, 1903.
[Formerly known as MAUGHOLD BANDED GROUP.] Simpson, 1963.
[Formerly known as CRAIGMADDIE MUIR SANDSTONES - Old code was also CRMS.] Not Entered
[Formerly known as CRAIGMADDIE SANDSTONE FORMATION.] Tait, 1973.
[Formerly known as CRAIGMADDIE SANDSTONES.] Clough et al., 1925.
[Formerly known as CRUGAN MUDSTONES.] (Matley, C A, 1938).
[Formerly known as CARRON FORMATION - Old code was also CRN.] Not Entered
[Formerly known as DUNNOTTAR GROUP.] Campbell, R, 1913.
[Formerly known as STONEHAVEN BEDS.] Hickling, G, 1908. Included in the Stonehaven Beds.
[Formerly known as UPPER SILURIAN (DOWNTONIAN).] Campbell, R, 1911. Included in the Upper Silurian (Downtonian).
[Formerly known as UPPER GRAMSCATHO BEDS - Old code was UGRO.] Not Entered
[Formerly known as CRAWTON GROUP.] (Almost equivalent to Crawton Group of Campbell, 1913).
[Formerly known as CROVIE GROUP - Old code was also CRO.] Not Entered
[Formerly known as CROW COAL (B) - Old code was also CROC.] Not Entered
[Otherwise known as CRAG LIMESTONE.] Not Entered
[Formerly known as CROSSDALE MUDSTONE FORMATION - Old code was also CROM.] Not Entered
[Formerly known as CROSSDALE SHALES.] Not Entered
[Otherwise known as GIFFNOCK MAIN COAL.] Not Entered
[Formerly known as CRATHIE POINT CALCAREOUS FLAG MEMBER - Old code was also CRPT.] Not Entered
[Formerly known as MIDDLE PORTION OF CRATHIE POINT CALCAREOUS GROUP.] Read, H H, 1923.
[Formerly known as DONSIDE GNEISSES.] Harris, A L, and Pitcher, W S, (1975).
[Otherwise known as SOFT BED FLAGS.] Not Entered
[Formerly known as CORLEY CONGLOMERATE - Old code was CC.] Not Entered
[Otherwise known as NOTTAGE CRAG GRIT.] Not Entered
[Formerly known as CORTON BEDS - Old code was also CRTB.] Not Entered
[Formerly known as AILSTONE MEMBER.] Maddy et al., 1991.
[Formerly known as AVON FOURTH TERRACE [DEPOSITS].] Worssam et al., 1989; Old et al., 1991.
[Formerly known as CROPTHORNE MEMBER.] Bowen, 1999.
[Formerly known as CROPTHORNE TERRACE DEPOSITS - Old code was also CRTD.] Name revised in line with new Quaternary stratigraphical framework.
[Formerly known as FOURTH OR AILSTONE TERRACE [DEPOSITS].] Barclay et al., 1997.
[Formerly known as FOURTH TERRACE DEPOSITS.] Old et al., 1987.
[Formerly known as FOURTH TERRACE [DEPOSITS].] Williams and Whittaker., 1974; Edmonds et al., 1965.
[Formerly known as NO.4 TERRACE [DEPOSITS].] Shotton, 1953; Tomlinson, 1925.
[Formerly known as LOWER OR SOUTH EASTERLY DRIFT.] Read, 1923.
[Formerly known as CRUACHAN PHASE, STARAV GRANITE - Old code was also CRUA.] Inappropriate name: replaced by Cruachan Intrusion.
[Otherwise known as CRUMBOUKE MINE COAL.] Not Entered
[Formerly known as CRUMBOUKE MINE.] Not Entered
[Formerly known as ARENIG BALLANTRAE VOLCANIC COMPLEX (ASSUMED TO BE PART OF).] Re-assigned on the basis of late Llanvirn to early Caradoc conodonts in the cherts (Lamont & Lindstrom, 1957)
[Formerly known as CRAWLEY FORMATION - Old code was also CRW.] Poole, 1969.
[Formerly known as CROW COAL (A) - Old code was also CRWC.] Not Entered
[Formerly known as CORALLIFEROUS SERIES.] Not Entered
[Formerly known as QUARTZ PEBBLE CONGLOMERATE.] Barclay, 1975.
[Formerly known as (SANDSTONE IN) CWM CRYCHAN FORMATION - Old code was CWCR.] Not Entered
[Formerly known as LOWER PERMIAN SANDSTONE.] Hull, 1864.
[Formerly known as PERMIAN SANDSTONE.] Hickling, 1918, p.379.
[Formerly known as "UPPER" ST BEES SANDSTONE.] Jackson et al, 1987.
[Formerly known as PART OF ST BEES SANDSTONE.] Not Entered
[Formerly known as CASCADE BEDS.] Not Entered
[Formerly known as CASCADE GRITS AND CONGLOMERATES.] Not Entered
[Otherwise known as CLAVA LODGE CLAY MEMBER.] Clava Shelly Clay Member made obsolete [J W Merritt; 03/10/2003] and replaced by Clava Lodge Clay Member [CLOCL].
[Otherwise known as LOCHINCH CHERRY COAL.] Not Entered
[Formerly known as CORSEND GELIFLUCTATE BED.] Merritt, Connell and Bridgland. 2000.
[Formerly known as CORSEND MEMBER, KIRKHILL FORMATION.] Sutherland. 1999.
[Formerly known as KIRKHILL GELIFLUCTATE 4.] Connell and Hall. 1987.
[Formerly known as KIRKHILL GELIFLUCTATE COMPLEX 3.] Hall and Connell. 1991.
[Formerly known as KIRKHILL GELIFLUCTATE COMPLEX 4.] Hall and Jarvis. 1993.
[Formerly known as KIRKHILL HEAD 3.] Connell, Hall and Romans. 1984.
[Otherwise known as RHAYADER MUDSTONES FORMATION.] This synonym has priority over the superfluous term Cwmsymlog Formation.
[Formerly known as CATON SHALE FORMATION - Old code was also CSH.] Not Entered
[Formerly known as CATON SHALE MEMBER - Old code was also CSH.] Reduced again to informal/unclassified beds within the Millstone Grit Group in line with new BGS Stratigraphical Framework (see Revisions).
[Formerly known as CATON SHALES - Old code was also CSH.] Hudson and Turner, 1933; Moseley, 1954; Slinger, 1936; Arthurton et al, 1988.
[Formerly known as CROSS LANE LIMESTONE - Old code was also CSLL.] Not Entered
[Otherwise known as INVERCLYDE GROUP.] The lower part of the former "Calciferous Sandstone Measures" (Cementstone Group), together with the uppermost beds of the Upper Old Red Sandstone, are now placed within the Inverclyde Group. Higher beds are now part of the Strathclyde Group.
[Otherwise known as STRATHCLYDE GROUP.] Most of the former "Calciferous Sandstone Measures" succession is now placed within the Strathclyde Group. The lower beds (former Cementstone Group) are now part of the Inverclyde Group.
[Otherwise known as BREAKISH FORMATION.] Farris et al (1999) have proposed that these breccias should be regarded as the basal part of the Breakish Formation.
[Formerly known as CLOUGHFIN SPONGE BED MEMBER.] Not Entered
[Formerly known as SPONGE BED.] Hancock, 1961
[Formerly known as SPONGIARIAN ZONE.] Hume, 1897
[Otherwise known as BALLAGAN FORMATION.] The Cementstone Group was intitally replaced by the Tyninghame Formation (TYN), but this is now subsumed within the Ballagan Formation (BGN).
[Formerly known as CENTRAL STARAV GRANITE - Old code was also CSTAR.] Name considered inappropriate and superseded by Central monzogranite facies, Starav Intrusion.
[Otherwise known as GIFFNOCK JEWEL COAL.] Not Entered
[Formerly known as ALLT DDU MUDSTONE FORMATION - Old code was ADM.] These rocks are equivalent to the upper part of the Ceiswyn Formation (Rushton, A W A and Howells, M F, 1998. Stratigraphical framework for the Ordovician of Snowdonia and the Lleyn Peninsula. British Geological Survey Technical Report RR 98/1).
[Formerly known as CEISWIN MUDSTONE.] Not Entered
[Formerly known as CEISWYN BEDS.] Pugh, 1923, Quarterly Journal of the Geological Society of London, p.122.
[Formerly known as NANT HIR MUDSTONES.] Bassett, et al. 1966.
[Formerly known as TALYLLYN MUDSTONES.] Jehu, 1926, Quarterly Journal of the Geological Society of London, p.82.
[Formerly known as CHEE TOR ROCK.] Green et al., 1869; Cope, 1933.
[Formerly known as CHEE TOR ROCK MEMBER - Old code was also CT.] Former Lexicon entry derived from original term Chee Tor Rock (see elsewhere).
[Otherwise known as KINGBRIDGE LIMESTONE.] Not Entered
[Otherwise known as CARSE CLAY, CLARET FORMATION.] Not Entered
[Formerly known as CLARET BEDS.] Not Entered
[Formerly known as CAMNANT MUDSTONES FORMATION - Old code was also CTE.] Lithological epithet made singular in line with modern practice [K Ambrose, 06 January 2004].
[Otherwise known as CONISTON SUBGROUP.] cf Cocks et al., 1992, Fig.6.
[Formerly known as CONISTON GRIT FORMATION - Old code was also CTG.] Not Entered
[Formerly known as CONISTON GRITS - Old code was also CTG.] Various authors.
[Otherwise known as DRAUGHTON LIMESTONE.] Lateral equivalents according to the Lexique Stratigraphique, 1971.
[Otherwise known as PENDLESIDE LIMESTONE.] Lateral equivalents according to the Lexique Stratigraphique, 1971.
[Otherwise known as GREAT LIMESTONE MEMBER.] Catsbit Limestone considered obsolete within the revised (2008) Carboniferous Stratigraphical Framework.
[Formerly known as COTHAM BEDS.] Not Entered
[Formerly known as CAUTLEY VOLCANIC FORMATION - Old code was also CTV.] Ingham, 1966.
[Formerly known as CAUTLEY VOLCANIC GROUP (INGHAM 1966).] Not Entered
[Formerly known as CULM - Old code was also CU.] Not Entered
[Formerly known as CULM GROUP - Old code was also CU.] Not Entered
[Formerly known as CULM MEASURES.] Sedgwick and Murchison, 1840.
[Formerly known as CULVER CHALK MEMBER.] (Mortimore, 1986).
[Formerly known as OIL SHALE.] Not Entered
[Otherwise known as LITTLE LIMESTONE.] Not Entered
[Otherwise known as COVE UPPER LIMESTONE.] Not Entered
[Otherwise known as CORALLIAN GROUP.] The redundant term Cumnor Formation is equivalent to the Corallian Group in the Oxford area, where it is divided into the Stanford and Kingston formations, q.v.
[Formerly known as LIMESTONES OF LANGHAM AND CUCKLINGTON.] Arkell, 1927.
[Formerly known as CULLEN QUARTZITE.] Read, 1923; Peacock et al. 1968.
[Formerly known as CULFARGIE BEDS.] Not Entered
[Formerly known as CLAVA SHELLY TILL MEMBER - Old code was CLST.] This name made obsolete and replaced by Culdoich Till Member, with transfer of definition details, 03/10/2003, J W Merritt.
[Formerly known as KEITH LIMESTONE MEMBER - Old code was KEIT.] This code/name combination is now obsolete and replaced by CUTL/Cuthill Limestone Member, within the Keith Limestone Formation.
[Otherwise known as CUTN, CROW COAL (WEST YORKSHIRE).] Correlated unit.
[Formerly known as WHITWICK VOLCANIC COMPLEX.] In part: Moseley, J and Ford, T D, 1985. Re-defined by Carney, J N, 1994.
[Formerly known as NAIRNSIDE AND CLAVA BEDS - Old code was NCB.] Not Entered
[Otherwise known as CAVE OOLITE.] Is a local name for the Upper Lincolnshire Limestone Member. Gaunt et al, 1992.
[Otherwise known as UPPER LINCOLNSHIRE LIMESTONE.] Not Entered
[Formerly known as CAVE OOLITE.] Phillips, 1885; BGS Sheet 72 (1995).
[Formerly known as CAVE OOLITE MEMBER - Old code was also CVO.] See Supplementary Information Description.
[Otherwise known as LANGLEY MARINE BAND.] Possible correlative: Ramsbottom and others, 1978.
[Formerly known as COWIE FORMATION - Old code was also CWE.] Not Entered
[Formerly known as STONEHAVEN BEDS.] (Hickling, G, 1908. Included in the Stonehaven Beds).
[Formerly known as THE UPPER SILURIAN ( DOWNTONIAN).] (Campbell, R, 1911, 1913. Included in the Upper Silurian).
[Formerly known as CLAY-WITH-FLINTS - Old code was also CWF.] Not Entered
[Formerly known as CORWEN GRIT.] Groom, T, and Lake, P. Quarterly Journal of the Geological Society, Vol 64, p 546.
[Formerly known as CARN POWELL FACIES.] of the Black Cock Beds (Potter and Price, 1965).
[Formerly known as CARN POWELL FACIES (OF BLACK COCK BEDS).] Potter and Price 1965
[Formerly known as GRAMMYSIA BED.] Strahan et al., 1907
[Formerly known as GRAMMYSIA BEDS.] Stamp, 1923
[Otherwise known as CAPEL CURIG VOLCANIC FORMATION.] Possible lateral equivalent. Howells and Smith, 1997.
[Formerly known as VOLCANIC CONGLOMERATE MEMBER.] Armstrong, M et al, 1978.
[Formerly known as CAWK COVE MEMBER - Old code was also CWK.] Lithological epithet added [D Millward] 11/03/2003.
[Otherwise known as GARDDEN LODGE MARINE BAND.] Local name, Denbighshire and Flintshire coalfield areas, possibly still to some extent in current use.
[Otherwise known as LITTLE MARINE BAND.] Local name, Durham and Northumberland coalfield areas, possibly still to some extent in current use.
[Otherwise known as LONGTON HALL MARINE BAND.] Local name, North Staffordshire area, possibly still to some extent in current use.
[Formerly known as GARDDEN LODGE MARINE BAND - Old code was GNLMB.] Local name, Denbighshire and Flintshire coalfield areas, possibly still to some extent in current use.
[Formerly known as LITTLE MARINE BAND - Old code was LTMB.] Local name, Durham and Northumberland coalfield areas, possibly still to some extent in current use.
[Formerly known as LONGTON HALL MARINE BAND - Old code was LNHMB.] Local name, North Staffordshire area, possibly still to some extent in current use.
[Formerly known as COAT WALLS MUDSTONE - Old code was also CWMU.] Not Entered
[Formerly known as COAT WALLS MUDSTONES - Old code was also CWMU.] Wilson and Evans, 1990.
[Formerly known as CWMBARN MEMBER - Old code was also CWN.] Not Entered
[Otherwise known as UPPER YARD COAL (NORTH WALES) [UYDC].] Not Entered
[Formerly known as COWHYTHE GNEISS - Old code was DBCH.] Lowest 80% of Cowhythe Gneiss of Read, H H, 1923.
[Otherwise known as CORTON WOODS SAND AND GRAVELS.] Arthurton et al., 1994
[Formerly known as CORTON WOODS SANDS AND GRAVELS - Old code was also CWSG.] Arthurton et al., 1994
[Formerly known as GRAVEL, SAND AND LOAM.] Blake, 1890.
[Formerly known as CAW FORMATION - Old code was also CWT.] Lithological epithet added [D Millward] 05/03/2003.
[Formerly known as CAW TUFFS - Old code was also CWT.] Mitchell, 1956.
[Otherwise known as SANNOX SILTSTONES.] Of Arran: Friend, P F, Harland, W D and Hudson, J D, 1963
[Formerly known as CROMLIX FORMATION - Old code was also CXF.] Not Entered
[Formerly known as EDZELL MUDSTONE FORMATION.] Part of, Campbell, 1913.
[Formerly known as EDZELL MUDSTONES.] Armstrong, M and Paterson, I B, 1970.
[Formerly known as LAURENCEKIRK MUDSTONE FORMATION - Old code was LKMU.] Term now obsolete; Cromlix Mudstone Formation used in preference.
[Formerly known as BALA LIMESTONE.] Sedgwick, 1845.
[Formerly known as CYMERIG LIMESTONE.] Bassett et al., 1966.
[Formerly known as CWM YR AETHNEN MUDSTONES - Old code was also CYA.] Not Entered
[Formerly known as CWM YR AETHNEN SHALES - Old code was also CYA.] Not Entered
[Formerly known as CORRIEYAIRACK GRANITIC COMPLEX.] Key et al, 1997.
[Formerly known as CLAXBY BEDS - Old code was also CYB.] Not Entered
[Formerly known as CADBURY BEDS.] Hutchins (1958, 1963).
[Formerly known as BALCOMIE BEDS (FIFE).] Not Entered
[Formerly known as DOWNIES LOUP SANDSTONES (STIRLING).] Not Entered
[Formerly known as CERRIG GWYNION GRITS MEMBER - Old code was also CYG.] Not Entered
[Formerly known as CERRIGWYNION GRITS.] (Lapworth, 1900).
[Formerly known as CORAL BED.] George, 1954.
[Otherwise known as APPROXIMATELY EQUIVALENT TO THE MONOGRAPTUS LEINTWARDINENSIS SHALES..] Earp, J R. Quarterly Journal of the Geological Society London, 1938, No.94, p 125-160.
[Formerly known as BRORA ARENACEOUS SERIES + UPPER PART OF BRORA ARGILLACEOUS SERIES.] Not Entered
[Formerly known as CRAIG Y LLAM GROUP - Old code was CYLL.] Cox and Wells, 1921, QJGS London, Vol.76.
[Formerly known as UPPER ACID GROUP.] Cox and Wells, 1921. Q.J.G.S. London, Vol.76
[Otherwise known as UPPER ACID VOLCANIC GROUP..] Not Entered
[Formerly known as CYSTOID LIMESTONE.] Ingham, J K, 1966
[Formerly known as STAUROCEPHALUS LIMESTONE.] Marr, J E, 1892
[Otherwise known as ALLESLEY MEMBER.] The Allesley Member is the new name for the Coventry Sandstone Formation.
[Otherwise known as SALOP FORMATION.] Parts of the Coventry Sandstone Formation are now included within the three members of the Salop Formation (Powell et al, 1999).
[Formerly known as COVENTRY SANDSTONE.] Not Entered
[Formerly known as CAREY BEDS.] Not Entered
[Otherwise known as WHORNEYSIDE TUFF FORMATION.] The proposed term Crosby Thwaite Formation was never used and the beds that it included are now recognized as part of the Whorneyside Tuff Formation.
[Formerly known as DALCHARN UPPER TILL FORMATION.] Incorporating the Lower Member of the Dalcharn Upper Till Formation at the Dalcharn Interglacial Site.
[Formerly known as COASTAL ZONE DEPOSITS (UNDIFFERENTIATED).] Qualifier deleted, as unnecessary.
[Formerly known as LOWER DALRADIAN GROUP (NOW APPIN GROUP).] Not Entered
[Formerly known as BLAIR ATHOLL SERIES.] Bailey, E B, 1925; Bailey, E B and McCallien, 1937.
[Formerly known as BALLYGRANT LIMESTONE - Old code was also DABG.] Not Entered
[Formerly known as BALLACHULISH GROUP.] Not Entered
[Formerly known as BLAIR ATHOLL SERIES.] Included in Blair Atholl Series by Bailey, E B, 1925.
[Formerly known as BALLACHULISH LIMESTONE - Old code was also DABL.] Not Entered
[Formerly known as BINNEIN QUARTZITE - Old code was also DABQ.] Not Entered
[Formerly known as BINNEIN SCHIST - Old code was also DABS.] Not Entered
[Formerly known as CUIL BAY SLATES - Old code was also DACB.] Not Entered
[Otherwise known as DAILLY ELL COAL.] Not Entered
[Formerly known as EILDE QUARTZITE - Old code was also DAEQ.] Not Entered
[Formerly known as EILDE SCHIST - Old code was also DAES.] Not Entered
[Formerly known as RAASAY SANDSTONE MEMBER - Old code was RAAS.] cf Revisions entries for Raasay Sandstone Member [RAAS]
[Formerly known as GLEN BANVIE SERIES - Old code was also DAGB.] ? all or ? part re-ranked as Formation.
[Formerly known as GLENCOE QUARTZITE - Old code was also DAGQ.] Not Entered
[Formerly known as GLENCOE QUARTZITE MEMBER - Old code was also DAGQ.] Minor name change due to rationalization of spelling.
[Formerly known as DAILLY SERIES.] Part of, Lapworth, 1882.
[Formerly known as NEWLANDS SERIES.] Part of.
[Formerly known as PENWHAPPLE NORTH GROUP.] Lowest part of, Floyd and Williams, in press.
[Formerly known as ISLAY LIMESTONE - Old code was also DAIL.] Not Entered
[Formerly known as KINTRA LIMESTONE - Old code was also DAKL.] Not Entered
[Formerly known as EGEDALE SLATE FORMATION - Old code was also DAKP.] Not Entered
[Formerly known as KINTRA PHYLLITES - Old code was also DAKP.] Not Entered
[Formerly known as MANX SLATE SERIES.] Simpson, 1963.
[Formerly known as MANX SLATES.] Geological Survey, 1898; Lamplugh, 1903.
[Formerly known as LISMORE LIMESTONE - Old code was also DALL.] Not Entered
[Formerly known as EILDE, BINNEIN AND GLEN COE QUARTZITES.] (In type area. Bailey, E B, 1960. Treagus, J E, 1974).
[Formerly known as LOCHABER (TRANSITION) SUBGROUP.] (Harris, A L and Pitcher, W S, 1975).
[Formerly known as LEVEN SCHISTS - Old code was also DALS.] Not Entered
[Otherwise known as DAILLY MAIN COAL.] Not Entered
[Formerly known as MAOL AN FHITHICH QUARTZITE - Old code was also DAMF.] Not Entered
[Otherwise known as DAILLY PARROT COAL.] Not Entered
[Formerly known as PALUSTRINE UNIT.] (Besly & Cleal, 1997).
[Formerly known as UPPER LIMESTONE - Old code was ULE.] Not Entered
[Formerly known as DART FORMATION (OBSOLETE CODE: USE DART) - Old code was DCDF.] Not Entered
[Formerly known as SCHISTOSE GRIT GROUP OF DART.] (Hartley, 1938)
[Formerly known as CLYST SANDS.] Smith, et al, 1974; Laming, 1982.
[Formerly known as DAWLISH SANDS.] Smith, et al, 1974; Laming, 1982.
[Formerly known as DAWLISH SANDSTONE.] Selwood, and others, 1984.
[Formerly known as DAWLISH SANDSTONES.] Henson, 1971.
[Formerly known as DAWLISH SANDSTONES AND BRECCIAS.] Ussher, 1913.
[Formerly known as LOWER SANDSTONE.] Ussher, 1899.
[Formerly known as GREY SANDSTONE FACIES.] Forsyth, I H, in Francis, E H et al, 1970.
[Formerly known as SESSIAGH CLONMASS FORMATION - Old code was also DASC.] Not Entered
[Formerly known as SANDEND GROUP - Old code was also DASG.] Not Entered
[Formerly known as DARTFORD SILT - Old code was also DASI.] Not Entered
[Formerly known as BALLACHULISH SLATE - Old code was also DASL.] Not Entered
[Formerly known as SCATSA PELITIC GROUP.] Not Entered
[Formerly known as SCATSTA PELITE - Old code was also DASP.] Not Entered
[Formerly known as SCATSTA QUARTZITE - Old code was also DASQ.] Not Entered
[Formerly known as SCATSTA QUARTZITIC GROUP - Old code was also DASQ.] Not Entered
[Otherwise known as REPLACED BY TYRONE PLUTONIC GROUP [TPG].] Not Entered
[Formerly known as CENTRAL HIGHLAND MIGMATITE COMPLEX.] Fletcher, et al. 1996; Highton, 1999.
[Formerly known as DALES VOE GRIT FORMATION - Old code was also DAVO.] Not Entered
[Formerly known as BURRINGTON OOLITE FORMATION - Old code was also BO.] Rank revised as part of new framework [CNW; 22/10/2004].
[Formerly known as BOW BEDS.] Hutchins, 1963. Divisible into Knowle Sandstone overlying Bow Breccia.
[Formerly known as BOW CONGLOMERATES - Old code was BWCG.] Edmonds, et al, 1968.
[Formerly known as BRIG O' BALGOWNIE CONGLOMERATE FORMATION - Old code was also BOBC.] Not Entered
[Formerly known as OLD RED SANDSTONE - Old code was ORS.] Part of.
[Formerly known as BALLOCH FORMATION - Old code was also BOCH.] Not Entered
[Formerly known as BALLOCH MEMBER.] of the Clyde Valley Formation sensu Bowen, 1999.
[Formerly known as UPPER PART OF BOYNE LIMESTONE.] (Read, H H, 1923).
[Otherwise known as BONALY VOLCANIC MEMBER.] Obsolete terme, replaced by BNY (Browne et al, 2001)
[Formerly known as BEYRICHOCERAS HODDERENSE BED.] Not Entered
[Formerly known as BOLLANDOCERAS HODDERENSE BEDS - Old code was also BOH.] Not Entered
[Formerly known as IN PART: CHATBURN LIMESTONE GROUP.] Not Entered
[Formerly known as IN PART: WORSTON SHALE GROUP.] Not Entered
[Otherwise known as BOLE HILL CHANNEL.] Chisholm, 1990
[Formerly known as WINGFIELD FLAGS.] Upper part of Wingfield Flags (Smith et al. 1967)
[Otherwise known as GRINDSTONE LIMESTONE.] Not Entered
[Formerly known as BOTTOM LITTLE VEIN.] Not Entered
[Formerly known as BOLLIN MUDSTONE FORMATION - Old code was also BOM.] Rank revised by BGS Triassic Stratigraphical Framework Committee.
[Formerly known as KEUPER MARL, LOWER - Old code was LKM.] Not Entered
[Formerly known as MERCIA MUDSTONE GROUP (LOWER DIVISION).] Not Entered
[Formerly known as PASSAGE BEDS.] Not Entered
[Formerly known as BOG MINE OUTLIERS.] Not Entered
[Formerly known as BOG QUARTZITE.] Ziegler, A M, and others.
[Otherwise known as SHINNEL FORMATION.] Shinnel Formation [SHIN] is the senior synonym of Boreland Formation (Floyd, 1996).
[Formerly known as BOGNOR MEMBER.] (King, 1981), (Edwards and Freshney, 1987).
[Formerly known as BOGNOR ROCK BED.] Not Entered
[Formerly known as BOGNOR SAND.] (BGS sheet 331).
[Formerly known as BOSCASTLE MEASURES.] Ashwin, D P, 1958.
[Formerly known as CRACKINGTON FORMATION.] Part of Crackington Formation. Freshney, E C, McKeown, M C and Williams, M, 1972.
[Formerly known as LOWER HILTON TERRACE.] (Clayton, K M, 1953).
[Otherwise known as BOTTOM FURNACE MINE COAL.] Not Entered
[Formerly known as BOTTOM FURNACE MINE.] Not Entered
[Formerly known as MEADFOOT BEDS.] (Champernowne, A, 1881).
[Formerly known as MEADFOOT GROUP.] (Ussher, W A E, 1907).
[Formerly known as BOWMORE PSAMMITE - Old code was also BOWM.] Not Entered
[Formerly known as BOWMORE SANDSTONE.] Not Entered
[Formerly known as ASTBURY LIMESTONE.] Evans et al., 1968.
[Formerly known as BOYNE LIMESTONE - Old code was DBBO.] Not Entered
[Formerly known as WHITEHILLS GROUP.] Basal part of Whitehills Group of Read, H H, 1923.
[Otherwise known as PERMIAN BASAL BRECCIA.] Permian Basal Breccia (defined 1995) lists the Basal Permian Breccia as a Previous Name [specifically on Sheet 33].
[Formerly known as BAMPTON LIMESTONE GROUP.] Webby and Thomas, 1965.
[Formerly known as BAMPTON LIMESTONES GROUP - Old code was also BPLM.] Not Entered
[Formerly known as BAMPTON MEMBER - Old code was BPM.] Rank revised and lithological epithet added.
[Formerly known as BASEMENT FORMATION.] Rocks now within the Bampton Limestone Formation were formerly considered part of the Basement Formation of Swarbrick, 1962.
[Formerly known as CHERT FORMATION.] Swarbrick, 1962.
[Formerly known as LOWER BAMPTON LIMESTONES.] Not Entered
[Formerly known as LOWER CULM MEASURES.] Rocks now within the Bampton Limestone Formation were formerly considered part of the Lower Culm Measures. Ussher, 1900.
[Formerly known as MIDDLE BAMPTON CHERTS.] Not Entered
[Formerly known as UPPER BAMPTON LIMESTONES.] Not Entered
[Otherwise known as CHEEVELEY COAL.] Not Entered
[Otherwise known as M.] British Coal Index.
[Formerly known as BAMPTON MEMBER - Old code was also BPM.] Rank revised and lithological epithet added.
[Otherwise known as BRADFORD FOUR FOOT MINE COAL.] Not Entered
[Formerly known as BRADFORD FOUR FOOT MINE.] Not Entered
[Formerly known as FAIRMILEHEAD, BRAIDS AND BLACKFORD.] (Included in the volcanic rocks of Fairmilehead, Braids and Blackford, which were considered by Mykura, W (1960) to be younger than those of the Pentland Hills).
[Formerly known as BRORA ARGILLACEOUS SERIES.] Not Entered
[Formerly known as BOURNEMOUTH GROUP.] As applied by
[Formerly known as BRACKLESHAM BEDS.] Prestwich, 1847.
[Formerly known as BRACKLESHAM GROUP.] In part, as used by Curry et al (1977) and as used by Stinton (1975).
[Formerly known as BRACKLESHAM SAND.] Prestwich, 1847.
[Formerly known as BRACKLESHAM SAND/BEDS.] (Prestwich, 1847).
[Otherwise known as GRENOSIDE SANDSTONE COAL.] Probablt lateral equivalent in the North Derbyshire area.
[Formerly known as REAY TILL.] Omand, 1973.
[Formerly known as REDDISH BROWN GROUND MORRAINE.] Peach and Horne, 1881.
[Formerly known as DINGLE BEDS.] Geological Survey of Northern Ireland, 1882.
[Formerly known as GORTFINBAR CONGLOMERATE FORMATION - Old code was GOCF.] Now restricted to the Devonian sediments. Geological Survey of Northern Ireland, 1982.
[Formerly known as SARN FORMATION.] Beckly, A J, 1988.
[Formerly known as WIG BACH FORMATION.] Gibbons, W and McCarroll, D, 1993.
[Formerly known as MICHELINIA GRANDIS ZONE.] APPROX. EQUIVALENT OF. Garwood, 1912.
[Formerly known as BREEDON MEMBER.] See Revision notes. Carney et al., 2001, 2002.
[Formerly known as BREIGHTON COVER SAND FORMATION - Old code was also BREI.] Not Entered
[Formerly known as SAND OF 25-FOOT DRIFT OF VALE OF YORK.] British Geological Survey, 1973.
[Otherwise known as TREDORN SLATE FORMATION.] Geological Survey 1:50K sheets 335 and 336.
[Formerly known as BRENDON FORMATION.] Whiteley, M J, 1983.
[Formerly known as CULM MEASURES AND UPPER DEVONIAN SLATES.] Reid, C et al, 1911. Previously mapped as Culm Measures and Upper Devonian Slates on p.337.
[Formerly known as GREYSTONE FORMATION.] Turner, 1982.
[Formerly known as LYDFORD FORMATION.] Isaac, 1983.
[Formerly known as MIDDLE CULM MEASURES.] Ussher, 1907; Reid et al, 1911.
[Formerly known as UPTON WOOD FORMATION.] Stewart, 1981.
[Formerly known as AVON FIRST TERRACE [DEPOSITS].] Worssam et al.,1989; Old et al., 1991.
[Formerly known as BRETFORD MEMBER - Old code was also BRET.] Not Entered
[Formerly known as BRETFORD TERRACE DEPOSITS [WARWICKSHIRE AVON] - Old code was also BRET.] Not Entered
[Formerly known as FIRST OR BIRLINGTON (BIRLINGHAM) TERRACE.] Barclay et al., 1997. Correct spelling is "Birlingham").
[Formerly known as FIRST TERRACE DEPOSITS.] Old et al. 1987.
[Formerly known as FIRST TERRACE [DEPOSITS].] Williams and Whittaker, 1974., Edmonds et al. 1965.
[Formerly known as NO.1 TERRACE [DEPOSITS].] Shotton, 1953; Tomlinson, 1925.
[Formerly known as BRETFORD MEMBER, LOWER FACET - Old code was also BRETL.] Not Entered
[Formerly known as BRETFORD MEMBER, UPPER FACET - Old code was also BRETU.] Not Entered
[Formerly known as BRATHAY FLAG FORMATION - Old code was also BRF.] Not Entered
[Formerly known as BRATHAY FLAGS - Old code was also BRF.] Not Entered
[Formerly known as BURFORD COAL FORMATION - Old code was also BRFC.] Poole, 1969.
[Formerly known as BURFORD COAL GROUP.] Poole, 1969.
[Formerly known as BRIDGES GROUP - Old code was also BRGP.] Not Entered
[Otherwise known as HOOKEN NODULAR LIMESTONE MEMBER.] Correlates with the Pounds Pool Sandy Limestone, Hooken Nodular Limestone and Little Beach Bioclastic Limestone members of the Beer Head Limestone Formation of Jarvis and Woodroof (1984).
[Otherwise known as LITTLE BEACH BIOCLASTIC LIMESTONE MEMBER.] Correlates with the Pounds Pool Sandy Limestone, Hooken Nodular Limestone and Little Beach Bioclastic Limestone members of the Beer Head Limestone Formation of Jarvis and Woodroof (1984).
[Otherwise known as POUNDS POOL SANDY LIMESTONE.] Correlates with the Pounds Pool Sandy Limestone, Hooken Nodular Limestone and Little Beach Bioclastic Limestone members of the Beer Head Limestone Formation of Jarvis and Woodroof (1984).
[Formerly known as CENOMANIAN LIMESTONE.] (Smith, 1965)
[Formerly known as CHALK MARL.] (Jukes-Browne & Hill, 1896)
[Formerly known as CHLORITIC MARL.] (Meyer, 1874)
[Formerly known as NONE: INCLUDES KIRKCOLM, GALDENOCH AND BLACKCRAIG FORMATIONS.] Not Entered
[Formerly known as DUNE SANDSTONE.] Wills,1948.
[Formerly known as LOWER BUNTER.] Not Entered
[Formerly known as BRIERLEY DIVISION.] Not Entered
[Otherwise known as BROADFORD BEDS FORMATION.] Undeterminable beds fall in the Broadford Beds Formation comprising Breakish and Ardnish formations. Hesselbo et al, 1998 renamed Lower Broadford Beds as Broadford Formation, but not accepted. Hesselbo and Coe (2000) adopted Breakish Formation.
[Formerly known as LOWER BROADFORD BEDS.] The Skye Lower Lias has received much attention, especially Morton and Hudson (1995) & Morton (1999a&b), with conflicting interpretations by Hesselbo, et al, (1998, 1999 and Hesselbo & Coe, 2000). A uniformity of ideas was presented by Morton (1999a).
[Formerly known as BOURNEMOUTH FRESHWATER BEDS - Old code was BRFR.] Beds formerly termed Bournemouth Freshwater Beds now form the lower part of the Branksome Sand Formation.
[Formerly known as BOURNEMOUTH MARINE BEDS - Old code was BRMR.] Beds formerly termed Bournemouth Marine Beds now form the upper part of the Branksome Sand Formation.
[Formerly known as BLACK ROCK DOLOMITE FORMATION - Old code was BRD.] Unit made obsolete.
[Formerly known as BLACK ROCK GROUP - Old code was BPGP.] Term made obsolete [CNW; 22/10/2003]
[Formerly known as BLACK ROCK LIMESTONE FORMATION - Old code was also BRL.] Not Entered
[Formerly known as BLUCKS POOL LIMETONE - Old code was BPL.] Term made obsolete [CNW, 22/10/2003].
[Formerly known as PENMAEN BURROWS LIMESTONE FORMATION - Old code was PBL.] Now considered to be obsolete and replaced by Black Rock Limestone Subgroup.
[Formerly known as OVERSTRAND FORMATION - Old code was OVSD.] Deposits formerly covered by this term are now included within the Briton's Lane Formation [See Revision entries for Overstrand Formation].
[Formerly known as BROADLEE GLEN SANDSTONES FORMATION - Old code was also BRLG.] Not Entered
[Otherwise known as BRIMS CASTLE DOLOMITIC LIMESTONE MEMBER.] This replaces the now obsolete "Brims Limestone Member".
[Formerly known as KYLE LIMESTONE FORMATION.] Fletcher and Key 1992; Nirex 658, 1994.
[Formerly known as BROOMHILL CLAY MEMBER - Old code was also BRLL.] Rank and Parentage revised.
[Formerly known as BROOMHILL FORMATION - Old code was also BRLL.] Not Entered
[Formerly known as BROOMHILL MEMBER.] of the Clyde Valley Formation, sensu Bowen, 1999.
[Formerly known as BRITON'S LANE SANDS AND GRAVELS.] Banham, 1968.
[Otherwise known as DOWBRIDGE MUDSTONE FORMATION.] Equiavalent to the upper part of the Dowbridge Mudstone Formation of the East Irish Sea Basin (Jackson et al., 1997)
[Formerly known as BRECKELLS MUDSTONE FORMATION.] Warrington et al, 1980.
[Formerly known as BRECKELLS MUDSTONES.] Wilson and Evans, 1990.
[Otherwise known as DUKE COAL.] Not Entered
[Otherwise known as K/L.] British Coal Index.
[Formerly known as BRAEMORE MUDSTONE - Old code was also BRMU.] (part of)
[Formerly known as DEN SILTSTONE FORMATION - Old code was DSF.] (part of)
[Formerly known as BURNSIDE FORMATION - Old code was also BRN.] Expansion of name from Burnside Formation, to Burnside Sandstone Formation.
[Otherwise known as GRASSINGTON GRIT.] Not Entered
[Formerly known as BRENNAND GRITS.] MOSELEY, 1954.
[Formerly known as BRENNAND GRITS FORMATION - Old code was also BRNG.] Not Entered
[Formerly known as BALCREUCHAN GROUP (CORRELATED WITH, BUT NOT NAMED).] Re-assigned on the basis of late Llanvirn to early Caradoc conodonts (Lamont & Lindstrom, 1957)
[Formerly known as BALCREUCHAN GROUP, PART OF ARENIG VOLCANIC COMPLEX (CORRELATED WITH, BUT NO SP.] Re-assigned on the basis of late Llanvirn to early Caradoc conodonts (Lamont & Lindstrom, 1957)
[Formerly known as SANDROCK OR SAND ROCK (SWINNERTON AND KENT, 1949).] (Swinnerton and Kent, 1949).
[Formerly known as (LOCALISED PART OF) CWM CRYCHAN FORMATION - Old code was CWCR.] Not Entered
[Otherwise known as BANDY COAL.] Not Entered
[Otherwise known as S.] British Coal Index.
[Formerly known as BRIDGETON FORMATION - Old code was also BRON.] Not Entered
[Otherwise known as THREE FOOT COAL.] Not Entered
[Otherwise known as BRORA ARGILLACEOUS SERIES (PARS).] Not Entered
[Formerly known as BRORA COAL, SHALES, SHELLY CLAYS AND SANDSTONES, AND 'ROOF BED'.] Not Entered
[Formerly known as BRORA SHALE FORMATION - Old code was also BROR.] Not Entered
[Formerly known as INCLUDED IN DRUMOCHTER SUCCESSION.] (Thomas, P R, 1980. Harris, A L, et al, 1994. Stephenson, G and Gould, D, 1995).
[Formerly known as BAREN RED GROUP (SOMERSET) - Old code was also BRR.] Not Entered
[Formerly known as BARREN RED FORMATION (SOMERSET) - Old code was also BRR.] Not Entered
[Formerly known as BARREN RED GROUP.] Kellaway, 1969.
[Otherwise known as JOAN COAL.] Not Entered
[Formerly known as BROWNSTONE GROUP - Old code was BRG.] (Squirrell, H C and Downing, R A, 1968).
[Formerly known as BROWNSTONES.] (Symonds, W S, 1872).
[Formerly known as RED SANDSTONE GROUP.] (Included in the Red Sandstone Group of Abergavenny, Robertson, T, 1927).
[Formerly known as BRAICKLAICH SANDS MEMBER - Old code was also BRSA.] Minor modification of lithological epithet from SANDS to SAND in BGS usage.
[Formerly known as BURGHEAD BEDS.] Peacock, et al. 1968.
[Formerly known as BURGHEAD SANDSTONE.] Westoll, 1951.
[Formerly known as BRONSIL SHALES - Old code was also BRSH.] Not Entered
[Otherwise known as PARK GATE ROCK.] The Park Gate Rock of the Sheffield district occupies the same stratigraphical position.
[Formerly known as CROPPER GATE ROCK.] Local name in/around Cropper Gate, Yorkshite, now superseded.
[Formerly known as BRAEMORE SANDSTONES - Old code was also BRSS.] Not Entered
[Formerly known as BRITHION TUFF - Old code was also BRT.] Not Entered
[Formerly known as CREIGIAU BRITHION FORMATION.] Dunkley, 1978.
[Formerly known as BARTON LIMESTONE - Old code was also BRTL.] Not Entered
[Formerly known as BARTON MEMBER - Old code was also BRTL.] Lithological epithet re-introduced to avoid possible confusion with "Tertiary" rocks of similar name.
[Otherwise known as BRADGATE FORMATION.] The established term Bradgate Formation was replaced by Bradgate Tuff Formation for a short time, but the original term was re-instated during resurvey of the Loughborough sheet.
[Formerly known as BRUNEL FORMATION - Old code was also BRU.] Name reverted to its former/original "Beds" version, pending decisions on the unit's status.
[Formerly known as BARRULE SLATES.] Geological Survey, 1898; Lamplugh, 1903.
[Formerly known as BARRULE SLATES AND SLIEAU MANAGH SLATES.] Simpron, 1963.
[Formerly known as BROAD VEIN.] Pugh,1923.
[Formerly known as BROAD VEIN FORMATION - Old code was also BRV.] Mudstone epithet added to distinguish unit from mineral veins.
[Formerly known as RED VEIN.] Not Entered
[Formerly known as BROWGILL BEDS - Old code was also BRW.] Not Entered
[Formerly known as BROWGILL MEMBER.] Not Entered
[Formerly known as KNOCK BEDS.] Nicholson and Lapworth, 1875.
[Formerly known as BRIXHAM LIMESTONE - Old code was also BRXL.] Not Entered
[Formerly known as ALLUVIUM.] On Old Series maps. See also Blake, 1890.
[Formerly known as SHOWN AS ALLUVIUM OF OLD SERIES MAPS OF AREA.] Blake, 1890.
[Otherwise known as DREWS COAL.] Not Entered
[Otherwise known as RHASFACH COAL.] Not Entered
[Formerly known as BIRNAM GRIT - Old code was DCBI.] (Armstrong et al, 1985).
[Formerly known as BIRNAM SLATE - Old code was DCBS.] (Armstrong et al, 1985).
[Otherwise known as NOD GLAS FORMATION.] Rushton, A W A and Howells, M F, 1998. Stratigraphical framework for the Ordovician of Snowdonia and the Lleyn Peninsula. British Geological Survey Technical Report RR 98/1.
[Otherwise known as SHOTHAUGH LIMESTONE.] Not Entered
[Otherwise known as COALBROOKDALE FORMATION..] Approximate equivalent of Coalbrookdale Formation to the east of the Church Stretton Fault complex.
[Formerly known as BROMLEYSMILL SHALES FORMATION - Old code was also BSF.] Not Entered
[Formerly known as BOWLAND SHALE GROUP - Old code was also BSG.] Not Entered
[Formerly known as BOWLAND SHALES - Old code was also BSG.] Not Entered
[Formerly known as EDALE SHALE GROUP - Old code was ESH.] Made redundant by redefinition of the former Bowland Shale Group to formational status.
[Formerly known as EDALE SHALES - Old code was ESH.] Not Entered
[Formerly known as HALKYN FORMATION - Old code was HAF.] Part of the former Halkyn Formation falls within the Bowland Shale Formation in appropriate areas.
[Formerly known as HOLYWELL SHALE FORMATION - Old code was HSH.] Made redundant by redefinition of the former Bowland Shale Group to formational status.
[Formerly known as HOLYWELL SHALES - Old code was HSH.] Not Entered
[Formerly known as BEENHAM STOCKS GRAVEL - Old code was also BSGR.] Not Entered
[Otherwise known as BOTTOM SHUTTLES MINE COAL.] Not Entered
[Formerly known as BOTTOM SHUTTLES MINE.] Not Entered
[Otherwise known as EMBSAY LIMESTONE MEMBER.] Not Entered
[Otherwise known as RAIN GILL LIMESTONE MEMBER.] Not Entered
[Formerly known as BRYN BEDS.] Groom, T, and Lake, P. 1908. Quarterly Journal of the Geological Society, Vol.64, p.546.
[Otherwise known as STANLEY MAIN COAL..] When all three leaves of the Brinsley Coal are present.
[Formerly known as BEN SUARDAL LIMESTONE - Old code was also BSLL.] Not Entered
[Formerly known as RETICULOCERAS SUPERBILINGUE MARINE BAND - Old code was SPMB.] Not Entered
[Otherwise known as LOW BEESTON COAL.] Not Entered
[Formerly known as BUDLEIGH SALTERTON CONGLOMERATE.] Hull, 1891.
[Formerly known as BUDLEIGH SALTERTON PEBBLE BED.] Irving, 1888.
[Formerly known as BUDLEIGH SALTERTON PEBBLE BEDS - Old code was also BSP.] Laming, 1968.
[Formerly known as PEBBLE BEDS.] Ussher, 1902.
[Formerly known as BEESTON SAND AND GRAVEL - Old code was also BSSG.] Not Entered
[Formerly known as BEESTON TERRACE.] (Swinnerton, H H, 1937).
[Otherwise known as BLAIRHALL MAIN COAL.] Not Entered
[Formerly known as BLACK STOCKARTON MOOR COMPLEX - Old code was also BSTM.] Not Entered
[Otherwise known as BARGATE MEMBER OF THE SANDGATE FORMATION.] Farrant, 2002.
[Formerly known as BARGATE BEDS - Old code was also BT.] White, 1910; Dines and Edmunds, 1929; Kirkaldy, 1933; Lake and Shephard-Thorn, 1985; Casey, 1961.
[Formerly known as BARGATE FORMATION - Old code was also BT.] Temporary "pragmatic" rank assignment used during small-scale map compilation.
[Formerly known as BARGATE MEMBER.] of the Sandgate Formation (Farrant, 2002).
[Formerly known as BRACADALE GROUP.] Anderson and Dunham, 1966.
[Formerly known as BETTON BEDS - Old code was also BTB.] Not Entered
[Formerly known as BALLINTOY CHALK MEMBER.] Not Entered
[Formerly known as WHITE BAY CHALK.] Fletcher, 1967
[Otherwise known as NORTHUMBERLAND LOW MAIN COAL.] Not Entered
[Otherwise known as (APPROXIMATES TO PRODUCTIVE COAL MEASURES)..] Not Entered
[Formerly known as BRANTINGHAM FORMATION - Old code was also BTF.] Gaunt et al, 1980; 1992
[Formerly known as CORALLIAN LIMESTONE.] Gray, D A. 1955 The occurrence of a Corallian limestone in East Yorkshire, south of Market Weighton. Proceedings of the Yorkshire Geological Society, Vol.30, 25-34.
[Formerly known as INCLUDED IN AMPTHILL CLAY.] Richardson, G. 1979. The Mesozoic stratigraphy of two boreholes near Worlaby, Humberside. Bulletin of the Geological Survey of Great Britain, Number 58, 1-24.
[Formerly known as BUTTERGASK FORMATION - Old code was also BTG.] Francis et al., 1970; Armstron and Paterson, 1970.
[Formerly known as BUTTERGASK MEMBER - Old code was also BTG.] Not Entered
[Otherwise known as SEAHAM FORMATION (COUNTY DURHAM).] Lateral equivalent of the Seaham Formation in County Durham.
[Formerly known as BROTHERTON (MAGNESIAN LIMESTONE) FORMATION.] Not Entered
[Formerly known as BROTHERTON BEDS.] Not Entered
[Formerly known as MAGNESIAN LIMESTONE (OF YORKSHIRE), UPPER - Old code was UMLY.] Not Entered
[Formerly known as UPPER MAGNESIUM LIMESTONE.] Not Entered
[Otherwise known as CALMY LIMESTONE.] Not Entered
[Formerly known as CALIFORNIA QUARRY FORMATION.] (Stewart, I J, 1981a. Whiteley, M J, 1983).
[Formerly known as HYNER SHALE, TRUSHAM SHALE.] (Selwood, E B, et al, 1984).
[Formerly known as SOUTH BRERTOR FORMATION.] (Isaac, K P, 1983. Whiteley, M J, 1983).
[Formerly known as YEOLMBRIDGE FORMATION.] (Stewart, I J, 1981b).
[Formerly known as POCKET DEPOSITS.] This collective name has been used commonly in the past.
[Otherwise known as GREYLAKE MEMBER.] Subdivision of the Formation, introduced by Campbell, 1999.
[Otherwise known as KENN CHURCH MEMBER.] Subdivision of the Formation, introduced by Campbell, 1999.
[Otherwise known as MIDDLEZOY MEMBER.] Subdivision of the Formation, introduced by Campbell, 1999.
[Formerly known as BURTLE BEDS - Old code was also BUB.] Introduced by the Index of Colours issued for official use by the Geological Survey in c.1844.
[Formerly known as BURTLE SANDS BEDS.] Bulleid and Jackson, 1938, 1942.
[Formerly known as BUCKIE BEDS.] Peacock, et al. 1968.
[Formerly known as BUCKIE FORMATION.] House, et al. 1977; Mykura, in Craig, 1983.
[Formerly known as UPPER PURPLE SANDSTONE FACIES.] Forsyth, I H, in Francis, E H et al, 1970. Name taken from type area around village of Buchlyvie.
[Formerly known as BUCHAN GRAVELS GROUP.] Hall, 1984.
[Formerly known as PLIOCENE GRAVELS.] Flett and Read, 1921.
[Formerly known as BURWAY GROUP - Old code was also BUGP.] Not Entered
[Formerly known as BUILDWAS BEDS.] Bassett 1974; Cocks and others, 1971
[Formerly known as WENLOCK SHALE.] Butler 1937
[Otherwise known as CANCER COAL.] Not Entered
[Formerly known as BALCLATCHIE CONGLOMERATE - Old code was BBCG.] Now obsolete. New name needed to avoid confusion with the Balclatchie Formation.
[Formerly known as LOWER CALP SHALE OF THE CALP OR MIDDLE LIMESTONE.] Not Entered
[Formerly known as BUCKSTONE GRIT.] Lapworth et al., 1910.
[Formerly known as BUXTON ROCK.] Greig et al., 1968.
[Formerly known as BUCHAN GRAVELS MEMBER - Old code was also BURG.] Not Entered
[Formerly known as PLIOCENE GRAVELS.] (Of Buchan).
[Otherwise known as STOKE PARK ROCK BED.] These units may be laterally equivalent.
[Formerly known as BUSSELL'S MUDSTONE MEMBER.] Bristow, 1983; amended to Bussell's Member in Edwards (1987), p. 28-30.
[Otherwise known as Q.] British Coal Index.
[Formerly known as THE DALCHARN UPPER TILL FORMATION.] The Dalcharn Interglacial Site (to incorporate next entry)
[Formerly known as THE MOY UPPER TILL MEMBER.] Member of the Allt Odhar Site (to incorporate first entry)
[Formerly known as BUTTERTON SANDSTONE.] Not Entered
[Formerly known as BUTTERTON SANDSTONE MEMBER - Old code was also BUTS.] Not Entered
[Otherwise known as BUTTERBY MEMBER.] Of the Wear Formation (Thomas, 1999).
[Formerly known as UPPER STONY CLAYS.] Smith and Francis, 1967.
[Formerly known as BUILTH VOLCANIC GROUP - Old code was also BUV.] Not Entered
[Formerly known as THE BUILTH VOLCANIC SERIES.] Not Entered
[Formerly known as BATCH VOLCANIC BEDS.] Greig et al., 1968.
[Formerly known as BATCH VOLCANIC ROCKS.] Cobbold, 1901.
[Formerly known as BORROWDALE VOLCANIC SERIES.] Not Entered
[Formerly known as SILLS IN THE BORROWDALE VOLCANIC GROUP - Old code was also BVGS.] Not Entered
[Formerly known as BLACK MARL.] Woodward, H B and Ussher, W A E, 1911.
[Formerly known as BLACK VEN BEDS.] Woodward, H B and Ussher, W A E, 1911.
[Formerly known as BLACK VEN MARLS - Old code was also BVM.] Not Entered
[Formerly known as BOVISAND BEDS - Old code was also BVSB.] Not Entered
[Otherwise known as 27 YARD COAL (WEST YORKSHIRE).] Correlated equivalent unit.
[Otherwise known as BRADFORD THREEQUARTERS MINE COAL.] Not Entered
[Formerly known as BRADFORD THREEQUARTERS MINE.] Not Entered
[Otherwise known as BURNLEY FOUR FEET COAL.] Not Entered
[Formerly known as BARTON BEDS - Old code was also BA.] Not Entered
[Formerly known as BARTON FORMATION.] Not Entered
[Formerly known as LONDON CLAY - Old code was LC.] Not Entered
[Formerly known as BADBEA BRECCIA - Old code was also BAB.] Not Entered
[Formerly known as BASEMENT BEDS.] Mitchell, M, et al, 1978; Arthurton, R S and Wadge, A J, 1981.
[Formerly known as BASEMENT CONGLOMERATE.] Eastwood, T, et al, 1968.
[Otherwise known as BADDOCH BURN LIMESTONE MEMBER.] Not Entered
[Formerly known as BARTON CLAY - Old code was also BAC.] Not Entered
[Formerly known as BARNCROFT BECK MEMBER - Old code was also BACB.] Rank reduced to Bed.
[Formerly known as CLAUGHTON FLAG SERIES.] Slinger, 1936.
[Formerly known as BARRAS CONGLOMERATE FORMATION - Old code was also BACO.] Not Entered
[Formerly known as JOHNSHAVEN FORMATION.] Armstrong, M and Paterson, I B, 1970. Included within the Johnshaven Formation.
[Formerly known as LOCH CHOIRE INJECTION COMPLEX.] DigMap lex rock entry, Kildonanan Sheet 109E
[Formerly known as SODIC GRANITE.] DigMap lexrock Reay Sheet (115E).
[Formerly known as GLEANN BADDOCH DOLOMITE.] Sheet 65W
[Formerly known as BADSWORTH DIVISION.] Not Entered
[Formerly known as BAYSTON-OAKSWOOD GROUP - Old code was also BAGP.] Not Entered
[Formerly known as BARON HILL BEDS.] Reedman et al., 1984.
[Formerly known as BARON HILL ROCKS.] Greenly, E. 1919.
[Formerly known as LOWER LIMESTONE - Old code was GLRB.] Not Entered
[Formerly known as PETTIGO LIMESTONE GROUP - Old code was PELG.] Not Entered
[Formerly known as "SYENITE ON RIDGE BETWEEN SCAW'D LAW AND ROGER LAW".] Not Entered
[Otherwise known as BASSEY MINE COAL.] Not Entered
[Formerly known as BASSEY MINE - Old code was also BAMC.] Not Entered
[Otherwise known as TRITON FORMATION.] Equivalent beds form the UPPER part of the Triton Formation (Johnson et al., 1994) in the Southern North Sea Basin.
[Formerly known as GREY AND TEA GREEN MARLS AND SULLY BEDS.] Richardson, 1911.
[Formerly known as GREY MARLS.] Hamilton and Whittaker, 1977.
[Formerly known as PALE GREEN AND GREY MARLS.] Bristow and Etheridge, 1873; Bristow et al., 1873.
[Formerly known as PARVA FORMATION (UPPER PART).] Elliott, 1961.
[Formerly known as SULLY BEDS (LOWER PART).] Warrington et al., 1980, fig. 1.
[Formerly known as TEA GREEN AND GREY MARLS.] Richardson, 1906; Ivimey-Cook, 1974.
[Formerly known as TEA GREEN MARL(S).] numerous authors.
[Formerly known as BANHAM BEDS.] Mathers et al, 1987.
[Formerly known as BRICKEARTH.] Old series map / Memoir.
[Formerly known as GLACIAL LAKE DEPOSITS.] Diss Memoir.
[Otherwise known as FALSE-BEDDED QUARTZITE MEMBER.] Swett, 1969; Prigmore and Rushton, 1999.
[Formerly known as BASAL QUARTZITE.] Wright and Knight, 1995.
[Formerly known as CROSS-BEDDED QUARTZITE.] Not Entered
[Formerly known as FALSE BEDDED GRIT.] Not Entered
[Formerly known as FALSE BEDDED QUARTZITE, LOWER QUARTZITE.] Peach et al., 1907.
[Formerly known as FALSE-BEDDED QUARTZITE FORMATION.] Johnson and Mykura, 1999.
[Formerly known as FALSE-BEDDED QUARTZITE MEMBER.] This effectively alternative name is rendered obsolete by the preferred use of Basal Quartzite Member.
[Formerly known as BEN AIAN QUARTZITE - Old code was DAAI.] Not Entered
[Formerly known as BARRINGTON BEDS - Old code was also BARB.] Not Entered
[Formerly known as UPPER LIAS LIMESTONE.] Kellaway and Wilson, 1941.
[Otherwise known as TOP HARD COAL.] Name used farther south, in Derbyshire and Nottinghamshire.
[Formerly known as BARR SERIES.] Not Entered
[Formerly known as BARTON SAND - Old code was also BAS.] Not Entered
[Formerly known as BASSINGFIELD SAND AND GRAVEL - Old code was also BASG.] Not Entered
[Otherwise known as FOUR FOOT COAL.] Not Entered
[Otherwise known as AM BINNEIN FORMATION.] Perhaps equivalent to Am Binnein Sandstones Formation of Arran.
[Otherwise known as BATHAMPTON MEMBER.] Used by Campbell et al. (1999) to distinguish Terrace 1.
[Otherwise known as HAM GREEN MEMBER.] Used by Campbell et al. (1999) to distinguish Terrace 3.
[Otherwise known as SIDHAM MEMBER.] Used by Campbell et al. (1999) to distinguish Terrace 2.
[Otherwise known as BLACK AND WHITE MINE COAL.] Not Entered
[Formerly known as BLACK AND WHITE MINES.] Not Entered
[Otherwise known as ARDWELL FLAGS FORMATION (TOPMOST BEDS).] Ingham. In: Lawson and Weedon, 1992, p.399.
[Otherwise known as CASCADE MEMBER.] A direct correlative in the Penwhapple Burn area.
[Formerly known as WHITEHOUSE BEDS.] Erroneous appropriation by Lapworth, 1882.
[Otherwise known as REPLACED BY CERIG FORMATION [CER].] Not Entered
[Formerly known as BROWN BANK IGNIMBRITE FORMATION - Old code was also BBA.] Not Entered
[Otherwise known as CATTERLINE CONGLOMERATE FORMATION.] Obsolete term, replaced by CATC (Browne et al, 2001).
[Formerly known as PERMIAN EVAPORITE B - Old code was PEVB.] Not Entered
[Otherwise known as H2.] British Coal Index.
[Otherwise known as LITTLE WONDER COAL.] Not Entered
[Formerly known as BLACK BAND FORMATION - Old code was also BBG.] Former Lexicon entry; Rank reduced to Member and lithology added 24/12/2003 [C N Waters].
[Formerly known as BLACKBAND GROUP.] Earp & Calver, 1961.
[Formerly known as BLIND BECK SANDSTONE FORMATION - Old code was also BBKS.] Formerly considered a formation within the Upper Old Red Sandstone Group, but now reranked as a member within the Shap Wells Conglomerate Formation.
[Formerly known as PART OF: SHAP CONGLOMERATE FORMATION - Old code was SHPC.] Pattison, 1990.
[Formerly known as RED SANDSTONE GROUP.] Capewell, 1954
[Formerly known as SHAP CONGLOMERATE FORMATION.] Part of the Shap Conglomerate Formation (Pattison, 1990).
[Formerly known as SHAP RED BEDS.] Part of the Shap Red Beds (Kimber, 1984).
[Formerly known as DOUGLAS UNDER LIMESTONE - Old code was DULS.] Not Entered
[Formerly known as MUIRKIRK UNDER LIMESTONE - Old code was MULS.] Not Entered
[Formerly known as NODULAR WHITE LIMESTONE.] Not Entered
[Formerly known as STONEHOUSE UNDER LIMESTONE - Old code was STUL.] Not Entered
[Otherwise known as SHAFTON MARINE BAND.] Tentative correlation suggested by Ramsbottom and others, 1978.
[Formerly known as BURN OF BENHOLM PEAT.] Donner, J J, 1960; 1979.
[Formerly known as BURN OF BENHOLM PEAT MEMBER - Old code was also BBP.] Formerly considered as a Member of the Benholm Clay Formation.
[Otherwise known as BROOKSBOTTOM SANDSTONES.] Not Entered
[Formerly known as BOFRISHLIE BURN SANDSTONE FORMATION - Old code was also BBSA.] Not Entered
[Formerly known as CALP SHALE OF THE CALP OR MIDDLE LIMESTONE.] Not Entered
[Otherwise known as Q2.] British Coal Index.
[Otherwise known as WIDDRINGTON MAIN COAL.] Not Entered
[Formerly known as BANFFSHIRE COAST GLACIGENIC GROUP.] The Subgroup includes units formerly assigned to the Banffshire Coast Glacigenic Group.
[Formerly known as BLACK COCK BEDS - Old code was also BCB.] Not Entered
[Formerly known as BALLYCASTLE CHALK MEMBER.] Not Entered
[Formerly known as BALLYCASTLE WHITE LIMESTONE (UPPER PART).] Wood (1967).
[Otherwise known as BLACK CLIFF VEIN.] Not Entered
[Formerly known as BLACK CLIFF VEIN.] Not Entered
[Formerly known as BANFFSHIRE COAST DRIFT GROUP - Old code was also BCD.] Epithet "Drift" revised to "Glacigenic" in line with BGS policy (November 2003).
[Formerly known as BANFFSHIRE COAST GLACIGENIC GROUP.] Not Entered
[Formerly known as BLUE-GREY SERIES.] Synge, F, 1956.
[Formerly known as COASTAL DEPOSITS AND GLACIOFLUVIAL DEPOSITS.] Read, H H, 1923.
[Formerly known as LOWER OR SOUTH EASTERLY DRIFT.] Read, H H, 1923.
[Formerly known as BRIMS CASTLE DOLOMITIC LIMESTONE MEMBER - Old code was also BCDL.] Lithological epithet changed to allow for the presence of other dolomite-rich lithologies.
[Formerly known as BRIMS LIMESTONE MEMBER - Old code was BRLI.] Now considered obsolete.
[Formerly known as KYLE LIMESTONE FORMATION.] Of Fletcher and Key, 1991.
[Formerly known as BRANDY CRAIG FORMATION.] Bluck, 1982
[Formerly known as BALCLATCHIE BEDS.] Not Entered
[Formerly known as BALCLATCHIE CONGLOMERATE - Old code was BBCG.] Not Entered
[Formerly known as BALCLATCHIE GROUP.] Not Entered
[Formerly known as BALCLATCHIE MUDSTONES - Old code was BBM.] Not Entered
[Formerly known as BUCHANAN FORMATION - Old code was also BCHN.] Rank revised and lithological epithet introduced.
[Formerly known as BURNHAM FORMATION - Old code was also BCK.] Name reverts to its original form, including lithological epithet.
[Formerly known as CHALK WITH FLINTS (UPPER PART).] Early Geological Survey maps.
[Formerly known as UPPER CHALK (LOWER PART).] Not Entered
[Otherwise known as ELSWICK MUDSTONE FORMATION.] East Irish Sea Basin. Jackson et al., 1997.
[Otherwise known as TRITON FORMATION.] Lower and Middle parts, in the Southern North Sea Basin. Johnson et al., 1984.
[Formerly known as BROOKS MILL MUDSTONE FORMATION - Old code was BMI.] Wilson, 1993: Rees and Wilson, 1998.
[Formerly known as CROPWELL BISHOP FORMATION - Old code was CBP.] Charsley et al., 1990 Berridge et al., 1999, Howard et al., in press.
[Formerly known as MUDSTONE III.] approximately equivalent, Jeans, 1978.
[Formerly known as SUPRA-ARDEN KEUPER MARLS.] approximately equivalent to Wills, 1976.
[Formerly known as TRENT FORMATION PLUS GLEN PARVA FORMATION.] Warrington et al., 1980.
[Formerly known as TRENT FORMATION PLUS THE LOWER PART OF THE PARVA FORMATION.] Elliott, 1961.
[Formerly known as TWYNING MUDSTONE FORMATION - Old code was TWM.] Barclay et al., 1997.
[Formerly known as UPPER KEUPER MARL - Old code was UKM.] Wills, 1970.
[Formerly known as UPPER KEUPER MARL [S].] approximately equivalent to Harrison, 1876; Matley, 1912.
[Formerly known as KNOCKDOLIAN SPILITIC GROUP.] Bailey and McCallien, 1957.
[Formerly known as BLISCO FORMATION.] Branney and Soper, 1988.
[Formerly known as BLISCO MEMBER - Old code was also BCO.] Lithological epithet added by D Millward, 03/03/2003.
[Formerly known as BELL CRAGS MEMBER - Old code was also BCR.] Lithological epithet added [D Millward] 05/03/2003.
[Formerly known as BLAEN Y CWM BEDS.] Wills, L J, and Smith, B. 1922. Quarterly Journal of the Geological Society, Vol.78, p.176.
[Formerly known as BEACON TUFFS MEMBER.] (Moseley, J and Ford, T D, 1985).
[Formerly known as UNIT 1.] Peacock, 1966.
[Otherwise known as BEECHWOOD CONGLOMERATE BED..] New name.
[Formerly known as BRITHDIR BEDS - Old code was also BD.] Woodland et al, 1957.
[Formerly known as BRITHDIR FORMATION - Old code was also BD.] Rank revised.
[Formerly known as (UNNAMED) ANDESITES.] Worssam et al, 1988.
[Formerly known as UNNAMED CONGLOMERATE WITHIN THE DORRERY SANDSTONE FORMATION.] Fletcher & Key, 1992.
[Formerly known as BEDS AT G AND H.] (Henderson and Brown, 1870).
[Formerly known as BEDS G AND H.] (Peach and Horne, 1899).
[Formerly known as UNIT E, WETHER LAW LINN FORMATION.] (Tipper, 1976).
[Formerly known as UPPER MEMBER, WETHER LAW LINN FORMATION.] (Robertson, 1989).
[Formerly known as UPPER PART OF BED C.] (Howell and Geikie, 1861).
[Formerly known as UPPER PART OF FOSSILIFEROUS MUDSTONES AND SILTSTONES.] Mykura and Smith in Mitchell and Mykura, 1962.
[Formerly known as BARRIEDALE FLAGSTONES - Old code was also BDF.] Not Entered
[Formerly known as HIGHER GRAVEL TRAIN.] (Wooldridge, S H, 1938)
[Otherwise known as J2.] British Coal Index.
[Formerly known as HUMMOCKY GLACIAL DEPOSITS UNDIVIDED.] Not Entered
[Formerly known as BAD STEP TUFF MEMBER - Old code was also BDP.] Re-ranked (D Millward) 03/03/2003.
[Formerly known as PREVIOUSLY COMPRISED LOWER, MIDDLE AND UPPER BORDER GROUPS.] As defined at Langholm and Bewcastle, original tripartite divisions of "Border Group". New definition consists of most of Middle Border Group and part of the Lower Border Group.
[Formerly known as BRIDPORT AND YEOVIL SANDS.] Wilson, V, et al, 1958.
[Formerly known as BRIDPORT SANDS.] Woodward, H B, 1888.
[Formerly known as COTSWOLD SANDS.] Arkell, W J, 1933.
[Formerly known as COTTESWOLD SANDS.] Lycett, J, 1857.
[Formerly known as MIDFORD SAND(S).] Phillips, J, 1871.
[Formerly known as UPPER LIAS SANDS.] Not Entered
[Formerly known as YEOVIL SANDS.] Hudleston, W H in Buckman, J, 1879.
[Formerly known as BERRIEDALE SANDSTONE GROUP - Old code was BDSG.] Not Entered
[Formerly known as BERRIEDALE SANDSTONES - Old code was also BDSA.] Not Entered
[Formerly known as BREADSTONE SHALES.] Not Entered
[Otherwise known as STOCKPORT FORMATION.] Bowen (1999)
[Formerly known as UN-NAMED TILL OF IRISH SEA PROVENANCE AT FOUR ASHES.] Not Entered
[Formerly known as BALDERTON MEMBER - Old code was also BDTN.] Bowen, 1999.
[Formerly known as BALDERTON SAND AND GRAVEL.] Brandon and Sumbler, 1988; 1991.
[Formerly known as BEESTON RIVER DEPOSITS.] Straw, 1963; Gozzard, 1976; Jackson, 1977; Straw and Clayton, 1979 (incorrectly correlated with the Beeston Terrace of its type area near Nottingham.
[Formerly known as BEESTON RIVER TERRACE DEPOSITS..] Swinnerton, 1937; Clayton, 1953, 1957.
[Formerly known as OLDER RIVER GRAVEL.] The Balderton Sand and Gravel was part of the former Older River Gravel of BGS Sheet 113 and Edwards, 1967.
[Formerly known as WHATTON SAND AND GRAVEL.] ?Uncertain equivalence (BGS Sheet 126).
[Formerly known as BEALESMILL SANDSTONE FORMATION - Old code was also BEAL.] Former incorrect spelling in Lexicon entry.
[Formerly known as BEALSMILL SANDSTONE FORMATION - Old code was also BEAL.] Lithological epithet removed to avoid confusion, as mudstones also occur within the unit.
[Formerly known as CRACKINGTON FORMATION.] Edmonds et al 1968, Issac 1985.
[Formerly known as EGGESFORD-TYPE CULM.] Ussher 1887; 1892.
[Formerly known as MIDDLE OR EXETER-TYPE CULM.] Ussher 1887; 1892.
[Formerly known as OKEHAMPTON SANDSTONE GROUP.] Dearman and Butcher 1959.
[Formerly known as BEARRERAIG SANDSTONE - Old code was also BEAS.] Not Entered
[Formerly known as BENTHALL BEDS - Old code was also BEB.] Hamblin, R J O and Coppack, B C, 1995, p.13
[Formerly known as BLACK SHELLY BOULDER CLAY.] Campbell, 1934.
[Formerly known as BLACK SHELLY TILL.] Donner, 1960; 1979.
[Formerly known as HIGH-LEVEL MARINE SHELL BED.] Sutherland, 1981.
[Formerly known as BECTON SAND - Old code was also BECS.] Not Entered
[Formerly known as OLD RED SANDSTONE - Old code was ORS.] Classified as 'Old Red Sandstone' by Morton and other authors.
[Formerly known as BEDROCK GEOLOGY NOT MAPPED [FOR DIGITAL MAP USE ONLY] - Old code was also BEDNM.] Wording revised to remove confusion about the use of the term and code.
[Formerly known as OFFSHORE BEDROCK NOT MAPPED [FOR DIGITAL MAP USE ONLY] - Old code was also BEDOF.] Wording revised to remove confusion about the use of the term and code.
[Formerly known as BEINN EDRA GROUP.] Anderson and Dunham, 1966.
[Formerly known as BELDIN GILL GANISTER FORMATION - Old code was also BEG.] Not Entered
[Formerly known as BROWN SANDS AND GRAVELS.] Campbell, 1934.
[Formerly known as BEMBRIDGE LIMESTONE - Old code was also BEL.] Not Entered
[Formerly known as UPPER OLD RED SANDSTONE.] McCallien, 1927
[Otherwise known as CARRITETH COAL.] Not Entered
[Otherwise known as H.] Btitish Coal Index.
[Otherwise known as QUEEN COAL.] Not Entered
[Formerly known as PALE SUITE OF BEN MORE.] Not Entered
[Formerly known as BENSCLIFFE AGGLOMERATE.] (Worssam, B C and Old, R A, 1988).
[Formerly known as FELSITIC AGGLOMERATE.] (Watts, W W, 1947).
[Otherwise known as G1.] British Coal Index.
[Otherwise known as PRINCE COAL.] Not Entered
[Otherwise known as TOP YARD COAL.] Not Entered
[Formerly known as BEOIL QUARTZITE.] (Treagus, J E and King, G, 1978).
[Formerly known as BEOIL SCHIST.] (Treagus, J E and King, G, 1978).
[Formerly known as BERLLAN BEDS - Old code was also BER.] Not Entered
[Formerly known as BERLLAN FORMATION - Old code was also BER.] Warren et al., 1984.
[Formerly known as NORTH SEA DRIFT FORMATION (PART OF).] Reid, 1882; Banham, 1988; Hart and Boulton, 1991; Lunkka, 1994; Bowen et al., 1999.
[Formerly known as BALLBROOK SANDSTONE MEMBER.] Holdsworth, 1963.
[Formerly known as BEN EAGACH SCHIST - Old code was DBBE.] Not Entered
[Formerly known as BETTON BEDS - Old code was BTB.] Not Entered
[Formerly known as BETTON MEMBER.] Not Entered
[Formerly known as BUDE SANDSTONES.] Owen, 1934.
[Formerly known as COCKINGTON BEDS.] In part. Prentice, 1960.
[Formerly known as GREENCLIFF BEDS.] Prentice, 1960
[Formerly known as MIDDLE CULM.] Ussher, 1887; 1892
[Formerly known as MORCHARD-TYPE CULM.] Ussher, 1887.
[Formerly known as ANDESITE AND DACITE GROUPS.] Clark, 1964.
[Formerly known as BIRKER FELL ANDESITE GROUP.] Oliver, 1961.
[Formerly known as LOWER ANDESITE.] Firman, 1957.
[Formerly known as ULLSWATER GROUP.] Moseley, 1960, 1964.
[Formerly known as LOWER BROADFORD BEDS.] Now divided into Breakish Formation (~ Lower Broadford Beds) and Ardnish Formation (~ Upper Broadford Beds); where possible on Skye.
[Formerly known as UPPER BROADFORD BEDS.] Now divided into Breakish Formation (~ Lower Broadford Beds) and Ardnish Formation (~ Upper Broadford Beds); where possible on Skye.
[Otherwise known as UAMH BHEAG CONGLOMERATE MEMBER.] Not Entered
[Formerly known as BIFIDUS BEDS.] Cox, and Wells, 1921. Quarterly Journal of the Geological Society of London, Vol.76.
[Formerly known as BIFIDUS SLATES.] Jones, 1932. Quarterly Journal of the Geological Society of London, Vol.89.
[Formerly known as ABBOTSHAM BEDS.] Prentice, 1960.
[Formerly known as ABBOTSHAM FORMATION.] De Raaf et al. 1965.
[Formerly known as BIDEFORD GROUP.] De Raaf et al., 1965.
[Formerly known as CRACKINGTON FORMATION.] In part. Edmonds et al. 1979.
[Formerly known as NORTHAM BEDS.] Prentice, 1960.
[Formerly known as NORTHAM FORMATION.] De Raaf et al. 1965.
[Formerly known as WESTWARD HO FORMATION.] De Raaf et al, 1965
[Formerly known as BENCLIFF GRIT - Old code was also BFG.] Of Blake and Hudleston (1877).
[Formerly known as BENCLIFF GRIT SERIES.] Of Blake and Hudleston (1877).
[Formerly known as BOWFELL LINKS MEMBER - Old code was also BFL.] BGS Lexicon entry lacked lithology epithet.
[Formerly known as PSAMMOSTEUS LIMESTONE - Old code was PSL.] Not Entered
[Formerly known as BIFIDUS SLATE FORMATION AND MURCHISONI BEDS [UNDIFFERENTIATED] - Old code was also BFMB.] Not Entered
[Formerly known as CANDLESTON OOLITE.] George, 1933.
[Formerly known as BRIELE GROUND FORMATION - Old code was also BG.] The name Brielle Ground Formation was proposed by the Dutch Geological Survey as the precise correlation of offshore Pliocene deposits with the onshore Oosterhout and Maasluis Formations.
[Otherwise known as ROCK COAL + LITTLE COAL.] Not Entered
[Otherwise known as SIX FEET COAL [SOUTH WALES COALFIELD].] Not Entered
[Formerly known as BEN GRIAM LOWER ARKOSE - Old code was BGLA.] (1 of 4 replaced)
[Formerly known as BEN GRIAM LOWER CONGLOMERATE - Old code was BGLC.] (2 of 4 replaced)
[Formerly known as BEN GRIAM UPPER ARKOSE - Old code was BGUA.] (4 of 4 replaced)
[Formerly known as BEN GRIAM UPPER CONGLOMERATE - Old code was BGUC.] (3 of 4 replaced)
[Formerly known as BRYN-GLAS GROUP.] Not Entered
[Formerly known as BRYN-GLAS MUDSTONES.] Jones, 1909.
[Formerly known as BEENHAM GRANGE GRAVEL - Old code was also BGGR.] Not Entered
[Formerly known as VALLEY GRAVEL.] Not Entered
[Otherwise known as PEN Y GADAIR VOLCANIC FORMATION.] Pratt, Woodhall and Howells, 1995.
[Otherwise known as SERW VOLCANIC FORMATION.] Equivalent in part: Lynas, 1973.
[Formerly known as BASIC VOLCANIC GROUP.] Wells, 1925
[Formerly known as BALLAGAN CEMENTSTONE FORMATION - Old code was BNCF.] Not Entered
[Formerly known as CEMENTSTONE GROUP.] Not Entered
[Formerly known as TYNINGHAME FORMATION - Old code was TYN.] The Tyninghame Formation has been equated stratigraphically with, and incorporated within, the Ballagan Formation (Browne et al, 1996).
[Formerly known as LAVAS AND ASHES OF OLD RED SANDSTONE AGE.] BGS one-inch geological maps
[Formerly known as BAGSHOT BEDS - Old code was BGB.] Not Entered
[Formerly known as BAGSHOT SANDS - Old code was also BGS.] Not Entered
[Formerly known as BAGINTON SAND.] This formed part of the current unit (Shotton, 1953).
[Formerly known as BAGINTON SAND AND GRAVEL - Old code was also BGSG.] Not Entered
[Formerly known as BAGINTON-LILLINGTON GRAVEL.] This formed part of the current unit (Shotton, 1953).
[Formerly known as BUSHLEY GREEN TERRACE.] (Wills, L J, 1958).
[Formerly known as BUSHLEY GREEN TERRACE DEPOSITS - Old code was also BGT.] Not Entered
[Formerly known as BUSHLEY GREEN TERRACE DEPOSITS (RIVER SEVERN) - Old code was also BGT.] Not Entered
[Formerly known as FIFTH TERRACE (RIVER SEVERN).] Not Entered
[Formerly known as CROMER DIAMICTON.] Lunkka, 1994.
[Formerly known as CROMER MEMBER.] Bowen et al, 1999.
[Formerly known as MUNDESLEY DIAMICTON.] Lunkka, 1994
[Formerly known as THIRD CROMER TILL.] Banham, 1968; Banham, 1988.
[Formerly known as BARNT GREEN VOLCANIC SERIES - Old code was also BGV.] Not Entered
[Formerly known as BURGHY COAL - Old code was also BGYC.] Previous Lexicon spelling: possibly a typo but possibly a local alternative spelling.
[Formerly known as YOUNG SEA SANDS.] (Used in Dutch publications only).
[Formerly known as CHERT BEDS - Old code was CHBS.] Not Entered
[Formerly known as BOHEESHANE CHALK MEMBER.] Not Entered
[Formerly known as BLANKET HEAD (REGOLITH) - Old code was also BHED.] The regolith component of the original name is now coded separately to increase flexibility and precision of attribution.
[Formerly known as BEACON HILL TUFF FORMATION - Old code was also BHF.] Not Entered
[Formerly known as BEACONSFIELD FLAGS.] Term probably used in error by Green et al, 1878.
[Otherwise known as LOWER FOXTON LIMESTONE.] Correlative in the Felton area.
[Formerly known as BOVEY BEDS.] W A E Ussher, 1913.
[Formerly known as BULLER'S HILL GRAVEL - Old code was also BHGR.] Not Entered
[Formerly known as BULLER'S HILL GRAVEL FORMATION - Old code was also BHGR.] Rank reduced to Member on recommendation of RJO Hamblin.
[Formerly known as HALDON GRAVELS.] W A E Ussher, 1913.
[Formerly known as TERTIARY BEDS.] De La Beche, 1839.
[Formerly known as BELL'S HILL AND HOWDEN BURN GROUP - Old code was also BHHB.] (Mykura, 1960; Peach et al, 1910)
[Formerly known as BELL'S HILL AND HOWDEN BURN VOLCANIC FORMATION.] Not Entered
[Formerly known as BLACK ROCK LIMESTONE - Old code was BRL.] pars. Kellaway and Welch, 1955.
[Formerly known as LOWER DOLOMITE - Old code was LD.] pars. Kellaway and Welch, 1955
[Formerly known as PENMAEN BURROWS LIMESTONE - Old code was PBL.] pars. Institute of the Geological Sciences, 1973.
[Formerly known as RUDRY FORMATION.] pars. George et al. 1976
[Formerly known as SHIPWAY LIMESTONE - Old code was SPWL.] pars. George et al., 1976
[Otherwise known as BELHELVIE PLUTON.] The name Belhelvie Basic (or mafic-ultramafic) Intrusion is preferred.
[Otherwise known as BOTTOM HAIGH MOOR COAL.] Not Entered
[Otherwise known as LOW HAIGH COAL.] Not Entered
[Formerly known as PEAT.] On all pre-exisiting maps of the west Cumbria part of the Cumbria-Lancashire Catchment Subgroup area.
[Formerly known as PEAT AND SUBMERGED AND BURIED FOREST.] Trotter et al., 1937; Eastwood et al., 1931.
[Formerly known as SUBMERGED FOREST.] Pickering, 1878.
[Formerly known as BROOMHOUSE FORMATION - Old code was also BHSE.] Not Entered
[Formerly known as BULKELEY HILL FORMATION.] Rees and Wilson, 1999.
[Formerly known as KEUPER SANDSTONE PASSAGE BEDS.] Poole and Whiteman, 1966.
[Formerly known as BOYN HILL GRAVEL FORMATION - Old code was also BHT.] Not Entered
[Formerly known as BOYN HILL TERRACE - Old code was also BHT.] Not Entered
[Otherwise known as BLACKHALL MEMBER.] Of the East Durham Formation (Thomas, 1999).
[Formerly known as DURHAM LOWER TILL.] Francis, 1970.
[Formerly known as BATHGATE LAVAS.] Not Entered
[Formerly known as BATHGATE VOLCANIC FORMATION - Old code was also BHV.] Not Entered
[Formerly known as BEACON HILL VOLCANIC GROUP.] Jones, 1932. Quarterly Journal of the Geological Society of London, Vol.89.
[Formerly known as BILTON COAL.] Not Entered
[Formerly known as THIRD TERRACE OF THE OUSE.] Not Entered
[Formerly known as SAND OF 25-FOOT DRIFT OF THE VALE OF YORK.] British Geological Survey, 1973.
[Formerly known as BIG VEIN.] Not Entered
[Formerly known as BIGHOUSE SANDSTONE FORMATION AND LOWER PART OF SANDSIDE SANDSTONE FORMATION.] Fletcher and Key, 1991.
[Otherwise known as NO.1 LLANTWIT COAL.] Not Entered
[Formerly known as BELLSHILL CLAY MEMBER - Old code was also BILL.] Not Entered
[Formerly known as BELLSHILL FORMATION - Old code was also BILL.] Not Entered
[Otherwise known as RETICULOCERAS BILINGUE MARINE BAND.] Not Entered
[Formerly known as [RETICULOCERAS] BILINGUE MARINE BAND - Old code was also BIMB.] Not Entered
[Formerly known as DARTMOUTH GROUP.] (Sedgwick, A, 1852. Part of Dartmouth Group).
[Formerly known as DARTMOUTH SLATES.] (Ussher, W A E, 1891. Part of Dartmouth Slates).
[Formerly known as BINNEND SANDSTONE MEMBER - Old code was also BINS.] Not Entered
[Otherwise known as KELSO VOLCANIC FORMATION.] Correlative.
[Formerly known as BIRRENSWARK LAVAS - Old code was BIL.] Pallister, 1952; Lumsden et al, 1967
[Formerly known as BIRRENSWARK VOLCANIC GROUP.] McRobert, 1920
[Formerly known as BIRSTALL SAND AND GRAVEL - Old code was also BISG.] Not Entered
[Formerly known as BIRSTALL TERRACE.] (Rice, R J, 1968).
[Formerly known as BISHOPSTON FORMATION.] Cleal and Thomas, 1996.
[Formerly known as MIDDLE SHALE(S) (GROUP).] George, 2001.
[Otherwise known as DITTON MARINE BAND.] Local name in the Lancashire Coalfield area.
[Formerly known as DITTON MARINE BAND.] Local name in the Lancashire Coalfield area.
[Formerly known as BIRKBY FELL MEMBER - Old code was also BKB.] Lithological epithet added (D Millward) 04/03/2003.
[Otherwise known as BEDS C TO H.] Equivalent to Beds C to H of Dodsworth, 1996
[Formerly known as "EXPANDED STANDARD BLACK BAND SUCCESSION".] Wood et al., 1997
[Formerly known as BASAL BEDS.] Upper part of the Basal Beds, including the Black Band (Gaunt et al., 1992)
[Formerly known as FLIXTON MEMBER.] upper part of Flixton Member of Jeans, 1980
[Formerly known as PLENUS MARLS MEMBER.] Upper part of the Plenus Marls Member of Witham, 1991
[Formerly known as VARIEGATED BEDS.] Wood and Mortimore, 1995
[Otherwise known as MOORLAND COAL.] Not Entered
[Formerly known as YELLOW SANDSTONE.] Not Entered
[Otherwise known as BURIED GRAVEL LAYER.] Not Entered
[Formerly known as BOTHKENNAR GRAVEL.] Not Entered
[Formerly known as BOTHKENNAR GRAVEL FORMATION.] Not Entered
[Formerly known as BLACK HILL INTRUSION - Old code was also BKHI.] Not Entered
[Formerly known as BUCKLANDS CLAYS.] Not Entered
[Formerly known as BLACK METALS.] Clough et al., 1916.
[Formerly known as GAWTHWAITE SANDSTONE MEMBER.] Not Entered
[Formerly known as LOWER COLDWELL BEDS - Old code was LCW.] This term is obsolete. The original LCW as defined by Marr (1878) is partly synonymous with the Birk Riggs Formation (Kneller, 1990), which includes the sandstones of the LCW and also the underlying "expanded hemipelagite" where present.
[Formerly known as BIRKHILL SHALES - Old code was also BKSH.] Lapworth 1878
[Formerly known as BLADON BEDS AND KEMBLE BEDS.] Arkell, W J, 1931; Arkell, W J, 1947.
[Formerly known as FIMBRIATA-WALTONI BED (SENSU LATO) AND UPPER EPITHYRIS BED.] Not Entered
[Formerly known as FOREST MARBLE FORMATION.] This unit has been included in Forest Marble Formation by some workers, see Sumbler, M G, 1984, table 2.
[Formerly known as KEMBLE BEDS.] Barker, M J, 1976
[Otherwise known as VICTORIA COAL [SOUTH WALES COALFIELD].] Not Entered
[Formerly known as BEN LAWERS SCHIST - Old code was DBBL.] Not Entered
[Formerly known as BLANE WATER FORMATION - Old code was also BLAW.] Not Entered
[Otherwise known as HARWICH FORMATION.] Used in some areas to include rocks formerly described as Blackheath Beds.
[Otherwise known as BARCELONA COAL.] Not Entered
[Otherwise known as BLOCKING BED COAL.] Not Entered
[Formerly known as BLAKE BROW MEMBER - Old code was also BLBR.] Lithological epithet added [D Millward] 11/03/2003.
[Formerly known as SEAFORD AND NEWHAVEN CHALK.] Bristow, 1990.
[Formerly known as FAIRMILEHEAD, BRAIDS AND BLACKFORD.] (Included in the volcanic rocks of Fairmilehead, Braids and Blackford by Mykura, W (1960), who considered them to be younger than those of the Pentland Hills).
[Formerly known as BLIND COVE MEMBER - Old code was also BLCV.] Lithological epithet added [D Millward] 11/03/2003.
[Formerly known as BLEAWATH FORMATION - Old code was also BLEA.] Not Entered
[Otherwise known as BLENFIRE MINE COAL.] Not Entered
[Formerly known as BLENFIRE MINE.] Not Entered
[Formerly known as BELFAST MARLS MEMBER.] Not Entered
[Formerly known as GLAUCONITIC SANDS.] Tate, 1865
[Formerly known as BLUE LIAS - Old code was also BLI.] (a) in the sense of Smith, W, 1799, MS. (b) also corresponds with the Blue Lias (in the sense of Williams, B J and Whittaker, A, 1974; Edmonds, E A, et al, 1965; Old, R A, et al, 1987; Worssam, B C, et al, 1989) plus underlying mainly clay/mudstone unit.
[Formerly known as BLUE LIAS (OBSOLETE CODE: USE BLI) - Old code was BLS.] Not Entered
[Formerly known as LYME REGIS BEDS.] Woodward, H B and Ussher, W A E, 1911.
[Formerly known as BEE LOW FORMATION - Old code was also BLL.]
[Formerly known as BEE LOW GROUP.] Not Entered
[Formerly known as BEE LOW LIMESTONES - Old code was also BLL.] Stevenson and Gaunt, 1971.
[Formerly known as BULL VEIN.] Not Entered
[Formerly known as CHARLESTOWN MAIN LIMESTONE - Old code was CNMA.] Redundant full synonym; Browne, M A E and 5 others, 1999, table 4, p16.
[Formerly known as DOCKRA LIMESTONE - Old code was DOLS.] Redundant full synonym; Browne, M A E and 5 others, 1999, table 4, p16.
[Formerly known as DOUGLAS WEE LIMESTONE - Old code was DWLS.] Redundant full synonym; Browne, M A E and 5 others, 1999, table 4, p16.
[Formerly known as MIDDLE SKATERAW LIMESTONE - Old code was MSKL.] Redundant full synonym; Browne, M A E and 5 others, 1999, table 4, p16.
[Formerly known as MIDDLE SKATERAW LIMESTONE AND UPPER SKATERAW LIMESTONE (UNDIFFERENTIATED) - Old code was MUSKL.] Redundant full synonym; Browne, M A E and 5 others, 1999, table 4, p16.
[Formerly known as NORTH GREENS LIMESTONE - Old code was NOGL.] Redundant full synonym; Browne, M A E and 5 others, 1999, table 4, p16.
[Formerly known as TARTRAVEN LIMESTONE - Old code was TAR.] Redundant full synonym; Browne, M A E and 5 others, 1999, table 4, p16.
[Formerly known as UPPER SKATERAW LIMESTONE - Old code was USKL.] Redundant full synonym; Browne, M A E and 5 others, 1999, table 4, p16.
[Otherwise known as SHANMULLAGH FORMATION.] The lower part of the original Ballinamallard Mudstone Formation, of Devonian age, is now separated off as the Shanmullagh Formation.
[Formerly known as BALLINAMALLARD FORMATION.] Geological Survey of Northern Ireland, 1982.
[Otherwise known as OAKLEY COAL.] Not Entered
[Formerly known as BED 4 OOLITE GROUP.] George, 1954.
[Formerly known as MIDDLE OOLITE.] Owen et al. 1965.
[Formerly known as COMBINED CHELTENHAM AND STANWAY HILL FORMATIONS.] Parsons, C F, 1980.
[Formerly known as LOWER INFERIOR OOLITE.] Buckman, J, 1901, 1905.
[Formerly known as LOWER INFERIOR OOLITE FORMATION.] Mudge, D C, 1978a.
[Formerly known as PART OF CREAG LEACACH QUARTZITE.] (Upton, 1986).
[Formerly known as BLAIR FLAGS AND SHALES.] Lapworth, 1882.
[Formerly known as BLAIR SHALES - Old code was also BLRS.] Not Entered
[Formerly known as GLACIAL SANDS AND GRAVELS.] Read, 1923.
[Formerly known as BLACK SLATE AND CHERT.] Informal - Jehu, T J and Campbell, R, 1917
[Otherwise known as SARCLET SANDSTONE.] Crampton and Carruthers, 1914, p.3.
[Formerly known as BRAEMORE SANDSTONES.] Crampton and Carruthers, 1914, pp26 - 27.
[Formerly known as INLAND SERIES TILL.] of Hall. 1984.
[Formerly known as BEN LUI SCHIST - Old code was DBBU.] Not Entered
[Otherwise known as MANOR COAL.] Not Entered
[Formerly known as UPPER PERMIAN MARLS.] Not Entered
[Formerly known as BARR LIMESTONE - Old code was also BLZ.] Not Entered
[Formerly known as WOOLHOPE LIMESTONE.] Whitehead and Eastwood, 1927. Correlation disproved by Bassett, 1974.
[Formerly known as BELEMNITE BEDS.] Woodward, H B and Ussher, W A E, 1911.
[Formerly known as BELEMNITE MARLS - Old code was also BM.] Not Entered
[Formerly known as STOMEBARROW BEDS.] Woodward, H B and Ussher, W A E, 1911.
[Formerly known as BALLYMAGARRY CHALK MEMBER.] Not Entered
[Formerly known as BARYTES MINE CONGLOMERATE.] Not Entered
[Formerly known as NORITIC DYKES OF THE SCOURIE DYKE SWARM.] Tarney and Weaver, 1987
[Formerly known as SCOURIE METACLINOPYROXENE-NORITE SUBSWARM - Old code was SCOMN.] Not Entered
[Otherwise known as BASSY MINE COAL.] Not Entered
[Formerly known as BASSY MINE - Old code was also BMCO.] Not Entered
[Otherwise known as WARWICKSHIRE GROUP.] See Powell et al., 1999.
[Formerly known as BARREN MEASURES (NOW GROUP) - Old code was also BME.] Not Entered
[Formerly known as COAL MEASURES, UPPER (E & W) - Old code was UCM.] Red beds part, etc.
[Formerly known as RED BARREN COAL MEASURES.] Not Entered
[Formerly known as KEUPER MARL, UPPER - Old code was UKM.] Upper Keuper Marl (formal).
[Formerly known as MERCIA MUDSTONE GROUP (UPPER DIVISION) - Old code was MMG.] Upper division of Mercia Mudstone Group. (Informal).
[Otherwise known as BLACK MINE COAL.] Not Entered
[Otherwise known as POYNTON FOUR FOOT COAL.] Not Entered
[Formerly known as BLACK MINE.] Not Entered
[Otherwise known as COLEBY MUDSTONES FORMATION..] Brant Mudstone Formation is equivalent to the lower part of Coleby Mudstone Formation, Sheet 89.
[Formerly known as SALTHILL BANK BEDS.] Miller and Grayson, 1972.
[Otherwise known as HARVEY COAL.] Not Entered
[Otherwise known as N.] British Coal Index.
[Formerly known as INFRA-KILRANNY GREYWACKES.] Williams, 1962
[Formerly known as BRONZITE PICRITE DYKES OF THE SCOURIE DYKE SWARM.] Tarney and Weaver, 1987.
[Formerly known as GAIRBEINN PSAMMITE FORMATION.] Haselock, 1982; BGS 1996.
[Formerly known as WHITE LIMESTONE MEMBER.] Marr, 1916; McNamara, 1979.
[Formerly known as HIGHLAND BORDER GRITS.] Tremlett, 1973.
[Formerly known as HIGHLAND BORDER SANDSTONES.] Bluck, 1992.
[Formerly known as LOCH LOMOND CLASTICS.] Henderson and Robertson, 1982.
[Otherwise known as SHILBURNHAUGH COAL (?).] Not Entered
[Formerly known as BROWN BANK BED.] Oele, E, 1971. Geologie En Mijnbouw, Vol.50, p.461-474.
[Formerly known as BROWNBER PEBBLE BED - Old code was BRP.] Includes beds formerly referred to the Orton Sandstone.
[Formerly known as ANGULATA CLAYS.] Not Entered
[Formerly known as ANGULATUM CLAYS - Old code was ANGC.] Not Entered
[Formerly known as BARNBY CLAYS.] Not Entered
[Otherwise known as BIN MINE COAL.] Not Entered
[Formerly known as BIN MINE.] Not Entered
[Formerly known as BANNISDALE SLATES - Old code was BASL.] (Aveline and Hughes, 1872, after Sedgwick).
[Otherwise known as BOTTOM NEDDY MINE COAL.] Not Entered
[Otherwise known as DANDY COAL.]
[Otherwise known as DANDY MINE.] Not Entered
[Formerly known as BOTTOM NEDDY MINE.] Not Entered
[Formerly known as BARRAS NOSE BEDS.] Dewey, 1909.
[Formerly known as LOWER BLUE-BLACK SLATES.] Parkinson, 1903.
[Formerly known as BU NESS GROUP - Old code was also BNG.] Not Entered
[Formerly known as BROWN HOWE MEMBER - Old code was also BNH.] Lithological epithet added [D Millward] 07/03/2003.
[Formerly known as BALNAKIEL GROUP.] (Peach et al., 1907; Phemister, 1960)
[Otherwise known as SMIDDY LIMESTONE.] Probable correlative.
[Formerly known as JUNCTION BED.] sensu lato.
[Formerly known as JUNCTION BED AND MARLSTONE [ROCK BED].] Not Entered
[Formerly known as WATTON BED.] Buckman, J, 1922.
[Formerly known as FORMERLY INCLUDED IN CLARAGH SANDSTONE GROUP.] Simpson, 1954
[Otherwise known as BARNS NESS EAST LIMESTONE.] This and the Barns Ness Limestone itself are now redundant/obsolete terms. Browne et al., 1999.
[Formerly known as HYDRAULIC LIMESTONE SERIES.] Not Entered
[Formerly known as HYDRAULIC LIMESTONES - Old code was HYDL.] Not Entered
[Formerly known as LIMESTONE SERIES.] Not Entered
[Formerly known as STRENSHAM SERIES.] Not Entered
[Formerly known as BAILLIESTON MEMBER.] of the Clyde Valley Formation, sensu Bowen, 1999
[Formerly known as BEN NEVIS VOLCANIC SERIES - Old code was BNV.] Not Entered
[Formerly known as BEDS C, E.] (Howell and Geikie, 1861)
[Formerly known as BONALY GROUP - Old code was BOG.] (Mykura, 1960, Peach et al, 1910)
[Formerly known as BONALY VOLCANIC FORMATION - Old code was also BNY.] Not Entered
[Otherwise known as CWM BEREM MARINE BAND.] Possible correlative: local name in parts of the South Wales Coalfield area, possibly still to some extent in current use.
[Otherwise known as PASTURE MINE MARINE BAND.] Local name in parts of the Lancashire Coalfield area, possibly still to some extent in current use.
[Otherwise known as TEMPLEMAN'S MARINE BAND.] Local name in parts of the Cumberland Coalfield area, possibly still to some extent in current use.
[Otherwise known as UPPER BAND MARINE BAND.] Local name, Nottinghamshire and Derbyshire coalfield areas, possibly still to some extent in current use.
[Formerly known as CWM BEREM MARINE BAND - Old code was CWBMB.] Possible correlative: local name in parts of the South Wales Coalfield area, possibly still to some extent in current use.
[Formerly known as PASTURE MINE MARINE BAND - Old code was PAMMB.] Local name in parts of the Lancashire Coalfield area, possibly still to some extent in current use.
[Formerly known as TEMPLEMAN'S MARINE BAND - Old code was TEMMB.] Local name in parts of the Cumberland Coalfield area, possibly still to some extent in current use.
[Formerly known as UPPER BAND MARINE BAND - Old code was UBMB.] Local name, Nottinghamshire and Derbyshire coalfield areas, possibly still to some extent in current use.
[Formerly known as LOWER GRINSTEAD CLAY.] Not Entered
[Formerly known as LOWER GREENSAND.] See discussion in Casey, 1961
[Formerly known as LAGGANTUIN CORNSTONES FORMATION - Old code was also LGT.] Not Entered
[Otherwise known as FIRST ELL COAL.] May be the same seam in areas to the south.
[Otherwise known as LIDGETT COAL.] Alternative spelling with double T at end
[Formerly known as LIDGETT COAL - Old code was also LGTC.] Spelling formerly used - eg in 1947 Sheet Memoir for Barnsley (87).
[Formerly known as LOWER HARTFELL SHALES - Old code was also LHBS.] Lapworth, 1878
[Formerly known as LINNEY HEAD BEDS - Old code was also LHD.] Not Entered
[Otherwise known as RUBBLE COAL.] Not Entered
[Formerly known as SILT AND CLAY OF THE 25 FOOT DRIFT OF THE VALE OF YORK.] British Geological Survey, 1973.
[Otherwise known as LEADHILLS GROUP.] Not Entered
[Formerly known as LEADHILLS GROUP - Old code was also LHG.] This rank may still be valid in some areas.
[Otherwise known as DENHAM VALLEY TERRACE.] Laterally equivalent.
[Formerly known as LYNCH HILL GRAVEL FORMATION - Old code was also LHGR.] Not Entered
[Formerly known as LITTLE HANGMAN SANDSTONES - Old code was also LHS.] Not Entered
[Formerly known as STRINGOCEPHALUS BEDS.] Lane, 1965.
[Formerly known as LIAS.] Buckland, W in Phillips, J, 1818.
[Formerly known as LIAS GROUP (FORMERLY LIAS) - Old code was also LI.] Lias Group. The unit includes the beds previously named as "Lower", "Middle" and "Upper" Lias. (Cope and others, 1980, Special Report of the Geological Society of London, No. 14; Brandon and others, 1990; Gaunt and others, 1992; Old and others, 1991).
[Formerly known as LYAS.] Smith, W, in Townsend, J, 1813.
[Formerly known as TOP ANHYDRITE - Old code was TPA.] Not Entered
[Formerly known as LITTLE COURSE.] Not Entered
[Formerly known as LICKLE FORMATION - Old code was also LICK.] Lithological epithet added [D Millward] 06/03/2003.
[Formerly known as LICKLE RHYOLITES.] Mitchell, 1956, now includes Paddy End Rhyolite as a member, Mitchell, 1940.
[Formerly known as LLANBEDROG IGNEOUS GROUP - Old code was also LIG.] Not Entered
[Formerly known as LLANBEDROG IGNIMBRITES.] (Fitch, F J, 1967).
[Formerly known as LLANBEDROG VOLCANIC SERIES.] Not Entered
[Formerly known as MYNYTHO VOLCANIC GROUP.] Not Entered
[Formerly known as SANDEND GROUP.] The Limehillock Limestone Member was formerly the middle part of the Sandend Group: Read, H H, 1923.
[Formerly known as LITTLE MAIN SEAM - Old code was also LIMN.] Not Entered
[Formerly known as LINKIM BEDS - Old code was also LIN.] Shiells and Dearman, 1966; Greig, 1988.
[Formerly known as MIDDLE PART OF SANDEND GROUP.] (Read, H H, 1923).
[Otherwise known as BIRDLIP LIMESTONE FORMATION.] Not Entered
[Otherwise known as REPLACED BY LICKEY QUARTZITE [LQ].] Not Entered
[Formerly known as LITTLEMORE CLAY BEDS - Old code was also LITC.] Arkell, 1927.
[Formerly known as LINWOOD FORMATION - Old code was also LIWD.] Rank revised and lithological epithet introduced.
[Formerly known as LERWICK SANDSTONES - Old code was also LKF.] Not Entered
[Otherwise known as CROMLIX MUDSTONE FORMATION.] Cromlix Mudstone Formation should be used to replace Laurencekirk Mudstone Formation, which is a redundant term.
[Otherwise known as KILSYTH COKING COAL.] Not Entered
[Formerly known as GREENBEDS.] Green and dark green rocks within the formation are known informally as 'greenbeds'; unit as defined here includes 'greenbeds' and greenish and rusty weathering rocks with varying amounts of volcaniclastic detritus.
[Formerly known as LINCOLNSHIRE LIMESTONE - Old code was also LL.] Judd, 1875.
[Formerly known as LLANDDOGET FORMATION.] Warren et al., 1984.
[Formerly known as LLANDEILO TO ASHGILL ROCKS [UNDIFFERENTIATED] - Old code was also LLDA.] The former Llandeilo Series is now considered to be a Stage within the Llanvirn Series, so the limits of this composite are revised to the new Series level.
[Formerly known as LLANDEILO TO CARADOC ROCKS [UNDIFFERENTIATED] - Old code was also LLDC.] The former Llandeilo Series is now considered to be a Stage within the Llanvirn Series, so the limits of this composite are revised to the new Series level.
[Formerly known as IRISH SEA TILL.] Not Entered
[Formerly known as ST ASAPH FORMATION.] Bowen, 1999.
[Formerly known as LLYNFI BEDS - Old code was also LLFB.] Not Entered
[Formerly known as LLYNFI FORMATION - Old code was also LLFB.] Rank revised.
[Formerly known as LOWER LIMESTONE GROUP - Old code was also LLG.] Not Entered
[Formerly known as GLEN DOE PSAMMITE FORMATION.] BGS, 1995, 1996; May and Highton, 1997.
[Formerly known as LOWER LIMESTONE GROUP - Old code was also LLGS.] Not Entered
[Otherwise known as REDCAR MUDSTONE FORMATION.] In England/Wales superseded by formations defined by Cox and others (1999).Corresponds broadly with Redcar Mudstone Formation of the Cleveland Basin, and Scunthorpe Mudstone/Blue Lias Formation plus Charmouth Mudstone Formation elsewhere.
[Formerly known as LOWER LIAS CLAY - Old code was LLI.] Worssam, and others, 1989. (Note:- not total synonym of Lower Lias undivided).
[Formerly known as LOWER LIAS CLAYS.] Cope, and others, 1980
[Formerly known as KIRTON CEMENTSTONES MEMBER PLUS SANTON OOLITE MEMBER PLUS RAVENTHORPE BEDS MEMBER.] Gaunt et al., 1980
[Formerly known as LOWER LINCOLNSHIRE LIMESTONE.] Of BGS accounts from 1990 onwards. Berridge et al., 1999.
[Formerly known as LOWER LINCOLNSHIRE LIMESTONE PLUS MIDDLE LINCOLNSHIRE LIMESTONE.] Ashton, 1980.
[Otherwise known as NO.2 RHONDDA COAL.] The Upper and Lower Llwydcoed coals combine to form the No.2 Rhondda seam.
[Formerly known as LLANMAWDDWY GRIT - Old code was also LLM.] Not Entered
[Formerly known as ARAN FAWDDWYF FORMATION.] (Equivalent to Aran Fawddwyf Formation)
[Formerly known as LLYNFI FORMATION, RHONDDA FORMATION AND BRITHDIR FORMATION (UNDIFFERENTIATED) - Old code was also LLRB.] Ranks of components revised.
[Otherwise known as TIBBY PAGAN'S LIMESTONE.] Not Entered
[Formerly known as MEADFOOT BEDS.] (Part of Meadfoot Beds).
[Otherwise known as BURTON CLIFF PALYNOLOGICAL ASSOCIATION.] Thomas et al., 2006: this term is applied to the upper part of the current Formation, which equates to the former Burton Cliff Formation (sensu Thomas, 1978)
[Otherwise known as HOBBS POINT PALYNOLOGICAL ASSOCIATION.] Thomas et al., 2006: this term is applied to the lower part of the current Formation, which equates to the former Llanstandwell Formation (sensu Thomas, 1978)
[Formerly known as BURTON CLIFF FORMATION.] The upper part of the current Formation was formerly known as the Burton Cliff Formation (Thomas, 1978), overlying the Llanstadwell Formation (sensu Thomas, 1978), which is the lower part of the current Formation.
[Formerly known as LOWER COSHESTON DIVISION.] These rocks were formerly included in the "Lower Cosheston Division" of Cantrill et al. (1916) and mapped as Cosheston Group undivided.
[Formerly known as LOCH LOYAL SYENITE PLUTON - Old code was also LLSY.] Not Entered
[Otherwise known as THANET SAND FORMATION, LAMBETH GROUP AND HARWICH FORMATION [UNDIFFERENTIATED].] Not Entered
[Formerly known as LOWER LUDLOW GROUP.] 1" 232 Abergavenny (1930)
[Formerly known as LOWER LUDLOW ROCK.] (Murchison, 1839).
[Formerly known as LOWER LUDLOW SHALES - Old code was also LLU.] (Phillips, 1848; Groom, 1900).
[Formerly known as LOWER LUDLOW SILTSTONE FORMATION.] (Phipps and Reeve, 1969; Brandon, 1989).
[Formerly known as LOWER LUDLOW ROCK.] Murchison, 1839
[Formerly known as LOWER LUDLOW SHALES - Old code was LLU.] Phillips, 1848; Groom, 1900
[Formerly known as LOWER LUDLOW SILTSTONE FORMATION.] Phipps and Reeve, 1969; Brandon, 1989
[Formerly known as BASEMENT BEDS - Old code was BBW.] Not Entered
[Formerly known as CALCITE MUDSTONE GROUP.] George, 1954.
[Formerly known as WHITEHEAD LIMESTONE - Old code was WTHL.] Term formerly used in the Forest of Dean and adjacent areas to the south.
[Otherwise known as SKIPTON MOOR GRIT.] Not Entered
[Otherwise known as GREAT LIMESTONE MEMBER.] The locally named First Limestone is the lateral equivalent of the Great Limestone Member (of the Alston Block).
[Otherwise known as MAIN LIMESTONE.] The locally named First Limestone is the lateral equivalent of the Main Limestone (of the Askrigg Block), which is itself now replaced by Great Limestone Member.
[Otherwise known as TUPTON COAL [NOTTINGHAM].] The Low Main merges with the Tupton Coal (Low Thornecliffe) and then wih the Cockleshell Coal to form the Tupton Coal of Nottingham.
[Formerly known as LOWER MILLER'S DALE BASALT - Old code was also LMB.] Not Entered
[Formerly known as LOWER MILLER'S DALE LAVA.] Stevenson and Gaunt, 1971.
[Formerly known as WOOLWICH AND READING BEDS - Old code was WRB.] Not Entered
[Formerly known as LOWER DEVIL'S BRIDGE FORMATION AND MIDDLE DEVIL'S BRIDGE FORMATION [UNDIFFEREN - Old code was also LMDB.] See individual entries for LDB and MDB.
[Formerly known as LINGMELL FORMATION - Old code was also LME.] Lithological epithet added (D Millward) 03/03/2003.
[Formerly known as LITTLE MELDRUM MEMBER - Old code was also LMEL.] BGS Lexicon entry lacked lithology epithet.
[Formerly known as SALTHILL CAP BEDS.] Miller and Grayson, 1972.
[Formerly known as THORNLEY REEF CONGLOMERATE.] Parkinson, 1926.
[Formerly known as MOTTLED MUDSTONES - Old code was MMU.] Not Entered
[Formerly known as CONGLOMERATES OF MORVEN.] Actually described formerly as one of "The conglomerates of Morven, Smean and Maiden Pap, etc".
[Otherwise known as LOWER MOUNTAIN MINE COAL.] Not Entered
[Formerly known as LOWER MOUNTAIN MINE - Old code was also LMOM.] Not Entered
[Formerly known as LOCH MAREE SERIES - Old code was also LMR.] Not Entered
[Formerly known as THE SANDSTONES OF SPYNIE, LOSSIEMOUTH AND FINDRASSIE.] Peacock, et al., 1968.
[Formerly known as LITTLEHAM BEDS.] Laming, 1968.
[Formerly known as LITTLEHAM FORMATION.] Hewson, 1970.
[Formerly known as LITTLEHAM MUDSTONES.] Hewson, 1972.
[Formerly known as LYNTON FORMATION - Old code was also LNB.] Not Entered
[Formerly known as LOCHWINNOCH FORMATION - Old code was also LNCH.] Not Entered
[Otherwise known as WHITE CLIFF CORAL BAND.] Not Entered
[Otherwise known as NANTGLYN FLAGS FORMATION.] The separation of the "Upper" and "Lower" Nantglyn Flags was based only upon palaeontological criteria. The two divisons are identical lithologically and are now regarded as belonging to a single Nantglyn Flags Formation.
[Otherwise known as LONGMAN TERRACE.] Peacock, 1977.
[Formerly known as LOW LEVEL GRAVEL OF INVERNESS.] Sissons, 1981.
[Formerly known as LOWER OLD RED SANDSTONE.] Mitchell, G H and Mykura, W, 1962. For the southern part of the Midland Valley of Scotland.
[Formerly known as LUXTON NODULAR LIMESTONE - Old code was also LNL.] Not Entered
[Formerly known as LENHAM BEDS - Old code was also LNM.] Not Entered
[Otherwise known as LLYSFAEN LIMESTONE.] Of Colwyn Bay, lateral equivalent of Llanarmon Limestone Formation, Warren, and others, 1984.
[Formerly known as DYSERTH QUARRY LIMESTONE.] Not Entered
[Formerly known as GOP HILL LIMESTONE.] Not Entered
[Formerly known as LLANDUDNO PIER DOLOMITE.] Not Entered
[Formerly known as LLYSFAEN LIMESTONE FORMATION - Old code was LLYL.] Term made obsolete in favour of Llanarmon Limestone Formation [CNW; 23/10/2003].
[Formerly known as LOWER BROWN LIMESTONE - Old code was LBRL.] Part of Llanarmon Limestone Formation.
[Formerly known as MOEL HRADDUG LIMESTONE.] Not Entered
[Formerly known as OCHR-Y-FOEL LIMESTONE FORMATION - Old code was OYFL.] Term made obsolete [CNW; 23/10/2003].
[Formerly known as PARTS PORT ERIN FORMATION, SANTON FORMATION, NY GARVAIN FORMATION.] Woodcock et al., 1999.
[Formerly known as GLENBERVIE PORPHYRY.] Not Entered
[Formerly known as LINTRATHEN IGNIMBRITE.] Not Entered
[Formerly known as LINTRATHEN PORPHYRY - Old code was also LNP.] Not Entered
[Formerly known as QUARTZ PORPHYRY OF LINTRATHEN.] Not Entered
[Formerly known as LYNTON BEDS.] Evans, 1983; Simpson, 1964.
[Formerly known as LYNTON SLATES - Old code was LYS.] Edmonds et al. 1985.
[Formerly known as LATHKILL LODGE BASALT - Old code was also LOB.] Not Entered
[Formerly known as LATHKILL LODGE LAVAS.] Walters and Ineson, 1981; Aitkenhead et al., 1985.
[Otherwise known as LOWER PLOMPTON GRIT.] Cooper and Burgess, 1993. Lower Brimham Grit is probably preferred.
[Formerly known as FIRST BRIMHAM GRIT.] Wilson and Thomson, 1965.
[Formerly known as LOWER PLOMPTON GRIT.] Cooper and Burgess, 1993. Might still be used as an alternative.
[Otherwise known as LOW BOTTOM MINE COAL.] Not Entered
[Formerly known as LOW BOTTOM MINE.] Not Entered
[Formerly known as LOBBS MEMBER.] Of the Threlkeld Formation of Bowen et al., 1999.
[Otherwise known as LOWER BENT MINE COAL.] Not Entered
[Otherwise known as PEACOCK COAL.] Not Entered
[Formerly known as LOWER BENT MINE.] Not Entered
[Formerly known as LOWCRAY FORMATION - Old code was also LOCY.] BGS Lexicon entry lacked lithology epithet.
[Formerly known as LONGLANDS FARM MEMBER - Old code was also LOFA.] Not Entered
[Formerly known as LOWESTOFT BOULDER CLAY.] Baden-Powell., 1948.
[Formerly known as LOWESTOFT TILL FORMATION.] Arthurton et al., 1994.
[Formerly known as LOWESTOFT TILL GROUP.] Bridge and Hopson, 1985; Hopson and Bridge, 1987.
[Formerly known as MIDDLE SANDS AND GRAVELS.] [part] sensu Trotter and Hollingworth, 1932.
[Formerly known as LOGIE HEAD SUB-GROUP.] Read, H H, 1923.
[Formerly known as "KNOLL REEF LIMESTONES".] Not Entered
[Formerly known as LONACHAN FORMATION - Old code was also LONL.] Not Entered
[Formerly known as PART OF BEN SUARDAL FORMATION.] Not Entered
[Formerly known as LONGNOR GRIT.] Bisat and Hudson, 1943.
[Formerly known as YOREDALE GRIT.] Hull and Green, 1866.
[Formerly known as LORNE SEDIMENTARY "SERIES" - Old code was also LOSS.] Incorrect spelling subsequently corrected.
[Otherwise known as LITTLE COAL [SOUTH WALES COALFIELD].] Not Entered
[Otherwise known as SHINNEL FORMATION.] Floyd (1996).
[Otherwise known as PETERBOROUGH MEMBER.] (Cox et al. 1992).
[Otherwise known as LOWER YARD MINE COAL.] Not Entered
[Formerly known as LOWER YARD MINE.] Not Entered
[Formerly known as MAIN ALGAL - Old code was also MAN.] Not Entered
[Formerly known as MAIN ALGAL LIMESTONE BEDS.] Not Entered
[Formerly known as MAIN COAL.] Not Entered
[Formerly known as MAN-MADE GROUND NOT MAPPED [DIGITAL MAPS ONLY] - Old code was also MANNM.] Wording revised to remove confusion about the use of the term and code
[Formerly known as KIRKHILL GELIFLUCTATE 5.] Connell and Hall, 1987; Hall and Jarvis. 1993.
[Formerly known as MANSE GELIFLUCTATE BED.] Merritt, Connell and Bridgland. 2000.
[Otherwise known as NONE.] Appears to be a lateral equivalent of the Wee Bankie Formation.
[Formerly known as MARR BANK BEDS.] Not Entered
[Otherwise known as MARGERY MINE COAL.] Not Entered
[Formerly known as MARGERY MINE.] Not Entered
[Formerly known as EARNLEY "DIVISION".] In part (Curry et al., 1977).
[Formerly known as MARGIE SERIES.] Barrow, G, 1901.
[Formerly known as MILLSTONE GRIT GROUP.] As applied in South Wales, e.g. Woodland and Evans, 1964.
[Formerly known as MILLSTONE GRIT SERIES.] As applied in South Wales, e.g. Woodland and Evans, 1964.
[Formerly known as TENBY GROUP - Old code was TENBY.] Unpublished.
[Formerly known as MIDDLE GRIT GROUP.] In the Bradford area (Stephens et al., 1953).
[Otherwise known as MAENTWROG FORMATION.] The former Maentwrog Slates are included within the Maentwrog Formation (MW).
[Formerly known as MATHON BEDS.] (Hey, 1959)
[Formerly known as MATHON SAND AND GRAVEL.] (Morris, 1974).
[Formerly known as MASS MOVEMENT DEPOSITS NOT MAPPED [DIGITAL MAPS ONLY] - Old code was also MASNM.] Wording revised to remove confusion about the use of the term and code.
[Formerly known as OFFSHORE MASS MOVEMENT DEPOSITS NOT MAPPED [FOR DIGITAL MAP USE ONLY] - Old code was also MASOF.] Wording revised to remove confusion about the use of the term and code.
[Formerly known as MALPAS SANDSTONE.] Poole and Whiteman, 1966.
[Formerly known as UPPER KEUPER SANDSTONE.] Pugh, 1960.
[Formerly known as DOWNTONIAN SANDSTONE INCLUDING QUARTZITE-CONGLOMERATE.] Geological Survey of Great Britain, 1925; Read, 1927.
[Formerly known as RASTRITES MAXIMUS MUDSTONES - Old code was also MAX.] Lapworth, 1882. Quarterly Journal of the Geological Society, Vol.38, p.537-66.
[Formerly known as GLENFINNAN DIVISION - Old code was also MB.] Not Entered
[Otherwise known as MURLOUGH SHALE FORMATION.] The term Murlough Bay Formation was used "illegally", as a unit of identical name (but different age) already existed. The term Murlough Shale Formation is introduced to describe the rocks (of Brigantian age) that were previously inappropriately named.
[Formerly known as MURLOUGH BAY COALS (BALLYCASTLE, NORTHERN IRELAND) - Old code was also MBC.] Not Entered
[Otherwise known as PORTNA LOUB COAL.] Not Entered
[Otherwise known as ARCHED MINE COAL.] Not Entered
[Otherwise known as GREY.] Part of Bluers Group Described as Middle Bluers Coal or Grey
[Formerly known as RETICULOCERAS METABILINGUE MARINE BAND.] Not Entered
[Otherwise known as KIRKLAND FORMATION.] Rocks formerly referred to as the Milburn Beds (etc) now form part of the Kirkland Formation (Burgess and Wadge, 1974).
[Otherwise known as FELL SANDSTONE GROUP.] Approximately equivalent to Middle Border Group.
[Formerly known as BORDER GROUP, MIDDLE (OBSOLETE CODE: USE MBO) - Old code was MBG.] Not Entered
[Formerly known as SOUTHERN HIGHLAND GROUP (UNDIVIDED).] Not Entered
[Formerly known as LOWER COSHESTON DIVISION.] The beds were formerly included within the informal "lower Cosheston Division" of Cantrill et al., 1916, and mapped as Cosheston Group, undivided.
[Formerly known as MULLAGHCARN FORMATION (OBSOLETE CODE: USE MCA) - Old code was DCMF.] Not Entered
[Formerly known as MULLAGHCARN GROUP.] (Hartley, 1938)
[Formerly known as MULLAGHCARN SCHISTS:SEE MULLAGHCARN GROUP.] Not Entered
[Formerly known as BOYNDIE BAY GROUP.] Read, H H, 1923.
[Formerly known as MACDUFF SLATES.] Read, H H, 1923.
[Formerly known as PASSAGE BEDS.] Nicholas, T C, 1915.
[Formerly known as CHALK, MIDDLE (NOW MIDDLE CHALK FORMATION) - Old code was also MCK.] Middle Chalk included everything from Plenus Marls to Chalk Rock. In later years confined to chalks from base of Melbourn Rock to base of Chalk Rock by the Survey.
[Formerly known as MIDDLE COAL MEASURES (SCOTLAND) - Old code was also MCMS.] Cosmetic reordering of the name to match formats used in the southern UK.
[Formerly known as PRODUCTIVE MEASURES (PART).] Not Entered
[Otherwise known as NETHER COAL.] Not Entered
[Otherwise known as MIDLAND VALLEY CARBONIFEROUS TO EARLY PERMIAN BASIC DYKE SUITE.] Not Entered
[Formerly known as MIDLAND VALLEY CARBONIFEROUS TO EARLY PERMIAN BASIC DYKE SUITE - Old code was also MCPAD.] Not Entered
[Otherwise known as MARTLEY QUARTZITE = MALVERN QUARTZITE..] Not Entered
[Formerly known as CAMBRIAN QUARTZITE.] Not Entered
[Formerly known as HOLLYBUSH QUARTZITE AND CONGLOMERATE.] Groom, 1899.
[Formerly known as MYNYTHO COMMON RIEBECKITE MICROGRANITE - Old code was also MCRM.] Not Entered
[Formerly known as MANCETTER GRITS AND SHALES.] As Mancetter Shale Formation.
[Formerly known as MCGILDOWNEYS MARINE BAND - Old code was MYMB.] Not Entered
[Formerly known as MARINE AND COASTAL ZONE DEPOSITS (UNDIFFERENTIATED) - Old code was also MCZD.] Qualifier deleted, as unnecessary.
[Formerly known as MILLER'S DALE BEDS.] Cope, 1933; Stevenson and Gaunt, 1971.
[Formerly known as MILLER'S DALE LIMESTONES.] Aitkenhead et al., 1985.
[Formerly known as MILLER'S DALE LIMESTONES FORMATION - Old code was also MDA.] Lithological epithet changed from plural to singular.
[Formerly known as MIDDLE DEVIL'S BRIDGE FORMATION - Old code was also MDB.] As a subdivision of the Devil's Bridge Formation, the former rank was inappropriate. The term is now retained with informal Member status.
[Otherwise known as CLAY COAL.] Name used in some parts of South Yorkshire.
[Otherwise known as BANKNOCK JEWEL COAL.] Not Entered
[Otherwise known as CONEYPARK LOWER DRUMGRAY COAL.] Not Entered
[Otherwise known as MIDDLE DRUMGRAY COAL.] Not Entered
[Otherwise known as NO. 5 VEIN.] Not Entered
[Otherwise known as PENSFORD NO. 2.] In the Pensford Basin.
[Otherwise known as RED HEAD FORMATION.] Probably equivalent to the Red Head Formation on the south-east limb of the Sidlaw Anticline, as the Finavon Conglomerate is now considered to be a lens-shaped body within the Tannadice Formation.
[Formerly known as MELGUND FORMATION - Old code was also MDF.] Not Entered
[Formerly known as MIDDLETON GRIT GROUP - Old code was also MDGT.] Not Entered
[Otherwise known as GREEN LANE COAL.] Not Entered
[Otherwise known as HOSPITAL COAL (DERBY).] Correlated seam.
[Otherwise known as PARKGATE COAL.] Not Entered
[Otherwise known as NEW HARDS COAL.] Not Entered
[Otherwise known as SILKSTONE COAL.] Not Entered
[Otherwise known as WEST YORKSHIRE SILKSTONE COAL.] Not Entered
[Formerly known as MEARNS DRIFT GROUP - Old code was also MDR.] Epithet "Drift" revised to "Glacigenic" in line with BGS policy (November 2003).
[Formerly known as MEARNS GLACIGENIC GROUP.] Rank revised in line with new BGS Stratigraphical Framework.
[Formerly known as RED CLAY SERIES.] Jamieson, 1906, p.18.
[Formerly known as RED GLACIAL DRIFT.] Glentworth, Mitchell and Mitchell, 1964, p.373-374.
[Formerly known as RED SERIES.] Simpson, 1948, p.688; Synge, 1956, p.129; (Hall and Connell, 1991, p.133.
[Otherwise known as MEADFOOT GROUP..] Not Entered
[Formerly known as MEADFOOT BEDS.] Not Entered
[Formerly known as MEADFOOT GRITS - Old code was also MDT.] Not Entered
[Formerly known as MEADFOOT SERIES.] Not Entered
[Formerly known as MARINE DEPOSITS (UNDIFFERENTIATED) - Old code was also MDU.] Qualifier deleted, as unnecessary.
[Otherwise known as MOINE SUPERGROUP.] The Yell Sound 'Division' is now believed to be equivalent to the Moine Supergroup; pro tem, however, it is treated as a separate Group within the Supergroup.
[Formerly known as FIRST TERRACE.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 1 (MEDWAY) - Old code was also ME1.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 2 (MEDWAY) - Old code was also ME2.] Not Entered
[Formerly known as SECOND TERRACE.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 3 (MEDWAY) - Old code was also ME3.] Not Entered
[Formerly known as THIRD TERRACE.] Not Entered
[Formerly known as FOURTH TERRACE.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 4 (MEDWAY) - Old code was also ME4.] Not Entered
[Formerly known as MEADOWTOWN BEDS - Old code was also MEB.] Not Entered
[Formerly known as MEALLFUORVONIE CONGLOMERATE - Old code was also MECO.] Not Entered
[Formerly known as MIDDLE EDAY SANDSTONE - Old code was also MED.] Not Entered
[Otherwise known as FARRAGON BEDS.] (Local equivalent of Farragon Beds but contains metamorphosed lavas as well as metamorphosed pyroclastic rocks).
[Otherwise known as BADDOCH BURN DOLOMITE.] Probable equivalent on sheet 65W.
[Otherwise known as BALLACHULISH LIMESTONE.] Equivalent in Ballachulish area.
[Formerly known as BADDOCH BURN DOLOMITE.] Probable equivalent on British Geological Survey Sheet 65W.
[Formerly known as BALLACHULISH LIMESTONE.] Equivalent in Ballachulish area.
[Formerly known as MEALL DUBH LIMESTONE.] Treagus, J E and King, G, 1978.
[Otherwise known as LEVEN SCHIST.] Equivalent in Ballachulish area.
[Formerly known as MEALL DUBH STRIPED PELITE.] Treagus, J E and King, G, 1978.
[Otherwise known as APPIN QUARTZITE.] Appin area.
[Otherwise known as BEINN A'GHLO QUARTZITE FORMATION.] Sheets 55E and 64E.
[Formerly known as APPIN QUARTZITE.] Appin area
[Formerly known as BEINN A'GHLO QUARTZITE FORMATION.] British Geological Sheets 55E and 64E.
[Formerly known as MEALL DUBH QUARTZITE.] Treagus, J E and King, G, 1978.
[Otherwise known as BALLACHULISH SLATE.] Ballachulish area.
[Otherwise known as BEINN A'GHLO GRAPHITIC SCHIST.] Sheets 55E and 64E.
[Formerly known as BALLACHULISH SLATE.] Lateral equivalent in Ballachulish area.
[Formerly known as BEINN A'GHLO GRAPHITIC SCHIST.] Lateral equivalent on British Geological Survey Sheets 55E and 64E, Smith, R A and Harris, A L, 1976.
[Formerly known as MEALL DUBH GRAPHITIC SCHIST.] Treagus, J E and King, G, 1978.
[Otherwise known as F1 AND F2.] Btitish Coal Index.
[Otherwise known as RADCLIFFE COAL.] Not Entered
[Formerly known as MIDDLE ELTON BEDS - Old code was also MELB.] The term Middle Elton Formation is now preferred for BGS informal use.
[Otherwise known as FOXEARTH COAL.] Parts of the Barnsley Sheet area.
[Otherwise known as WATHWOOD COAL.] Parts of the Barnsley Sheet area.
[Otherwise known as WOODMORE COAL.] Parts of the Barnsley Sheet area.
[Otherwise known as HOUGHRIGG COAL.] Not Entered
[Formerly known as MENEVIAN BEDS.] Geological Survey Old Series One inch sheet 75SE - Caernarfonshire).
[Formerly known as MENEVIAN SERIES.] Stubblefield, C J. 1959, and references therein.
[Otherwise known as ROSELAND BRECCIA FORMATION.] The rocks on the Lizard that were originally referred to the "Meneage Crush Zone" were temporarily referred to as the Meneage Olistostrome but are now believed to be equivalent to the Roseland Breccia Formation of the Mevagissey area.
[Formerly known as KEUPER WATERSTONES - Old code was KW.] Not Entered
[Otherwise known as CLOUGHTON FORMATION.] Rocks formerly referred to the Middle Estuarine (or Middle deltaic) "Series" now comprise the upper part of the Cloughton Formation.
[Formerly known as BRIDGES SANDSTONE FORMATION.] Davies, 1983.
[Formerly known as FANOGLE SANDSTONE.] Greenly, 1919.
[Formerly known as MENEI STRAITS FORMATION - Old code was also MEST.] Incorrect spelling.
[Otherwise known as F1.] British Coal Index.
[Formerly known as MEY SUBGROUP - Old code was also MEY.] Not Entered
[Otherwise known as MIDDLETON ELEVEN YARDS COAL.] Not Entered
[Otherwise known as CANNEL MINE MARINE BAND.] Local name in the Lancashire Coalfield, possibly still to some extent in current use.
[Otherwise known as FORTY YARD MARINE BAND.] Local name in the Derbyshire-Nottinghamshire Coalfield, possibly still to some extent in current use.
[Otherwise known as HARD BED BAND MARINE BAND.] Local name in the Yorkshire Coalfield, possibly still to some extent in current use.
[Otherwise known as MARGAM MARINE BAND.] Local name in parts of the South Wales Coalfield, possibly still to some extent in current use.
[Formerly known as CANNEL MINE MARINE BAND - Old code was CLMMB.] Local name in the Lancashire Coalfield, possibly still to some extent in current use.
[Formerly known as FORTY YARD MARINE BAND - Old code was 40YMB.] Local name in the Derbyshire-Nottinghamshire Coalfield, possibly still to some extent in current use.
[Formerly known as HARD BED BAND MARINE BAND - Old code was HBBMB.] Local name in the Yorkshire Coalfield, possibly still to some extent in current use.
[Formerly known as MARGAM MARINE BAND - Old code was MGMMB.] Local name in parts of the South Wales Coalfield, possibly still to some extent in current use.
[Otherwise known as MAERDY MUDSTONE FORMATION.] Alder, K E, 1976. Term considered obsolete [D Wilson; 12/02/2004].
[Formerly known as MOELFRYN MUDSTONE - Old code was also MFN.] Not Entered
[Formerly known as RHIWLAS MUDSTONES.] Elles, G L, 1922.
[Formerly known as MOFFAT SERIES.] Not Entered
[Otherwise known as MILLSTONE GRIT FORMATION.] Forms part of the Whitehurst Group in offshore areas.
[Formerly known as MILLSTONE GRIT - Old code was MGG.] Earp and others, 1961; Phillips, 1836. The Millstone Grit approximated to the Millstone Grit Group, but the Millstone Grit Series was a chronostratigraphical term, introduced later and synonymous with the Namurian.
[Otherwise known as MAENTWROG FORMATION.] The former Maentwrog Beds are included within the Maentwrog Formation (MW).
[Formerly known as MANX GROUP UNDIVIDED.] Geological Survey, 1898; Lamplugh, 1903.
[Formerly known as MANGOTSFIELD FORMATION - Old code was also MGF.] [Kellaway & Welch, 1993]
[Formerly known as MANGOTSFIELD GROUP.] [Kellaway, 1969]
[Otherwise known as PULE HILL GRIT.] Probable correlatives.
[Formerly known as WOODHOUSE GRIT - Old code was WHGT.] The upper part of the former Woodhouse Grit is now referred to the Midgley Grit, whereas the lower part is termed the Woodhouse Flags.
[Otherwise known as MOUSEGILL MARINE BAND.] Not Entered
[Otherwise known as CHOPPING VICTORIA COAL.] Not Entered
[Otherwise known as U.] British Coal Index.
[Formerly known as MIDDLE GRIT GROUP - Old code was also MGT.] Not Entered
[Formerly known as MIDDLE GRITS - Old code was also MGT.] Not Entered
[Formerly known as MYNYDD-Y-GADER GROUP.] Not Entered
[Otherwise known as GLACIOFLUVIAL DELTAIC DEPOSITS.] 1:50 000 England Sheet 37 (Gosforth), 1999.
[Formerly known as MARE HILL CLAY.] Used by some (older) authors, but note that the eponymous village is Marehill.
[Formerly known as PREVIOUSLY PART OF UNDIFFERENTIATED SANDGATE BEDS.] Not Entered
[Formerly known as AGNEASH GRITS.] Geological Survey, 1898; Lamplugh, 1903.
[Formerly known as LONGSLEDDALE SILTSTONES.] Not Entered
[Formerly known as MOORHOWE MEMBER - Old code was also MHO.] Not Entered
[Formerly known as MAY HILL GROUP.] Woodward, H B, 1876.
[Formerly known as MAY HILL SANDSTONE - Old code was also MHS.] Sedgwick, 1853).
[Formerly known as MAY HILL SERIES.] Marr, J E, 1883.
[Formerly known as BASAL GRAVELS.] Smith 1981.
[Formerly known as WOODSPRING LAVA AND TUFF.] Not Entered
[Formerly known as MILLDALE LIMESTONES - Old code was also MI.] Not Entered
[Otherwise known as MILLSTONE GRIT GROUP.] The name Millstone Grit Group is used Onshore.
[Otherwise known as MIDDLE HOSIE LIMESTONE.] Not Entered
[Formerly known as LOWER KINNINY LIMESTONE - Old code was LRKI.] Browne, M A E and 5 others, 1999.
[Formerly known as UPPER VEXHIM LIMESTONE - Old code was UVEX.] Browne, M A E and 5 others, 1999.
[Otherwise known as BALL COAL.] Not Entered
[Otherwise known as DENNYLOANHEAD BALL COAL.] Not Entered
[Otherwise known as GREENGAIRS SMITHY COAL.] Not Entered
[Otherwise known as THIRD DRUMGRAY COAL.] Not Entered
[Otherwise known as MINFORDD FORMATION.] Spelling used by Rushton and Howells, 1998.
[Otherwise known as ASTON LIMESTONE FORMATION.] Not Entered
[Otherwise known as MAJOR MINE COAL.] Not Entered
[Formerly known as MAJOR MINE.] Not Entered
[Formerly known as MONKERTON MEMBER.] Bristow and Williams, 1968.
[Formerly known as PASSAGE GROUP.] In part: the Monkcastle Sandstone Formation rocks correspond to the lower part of the Passage Group in north Ayrshire.
[Formerly known as MARKET STANCE METABASIC COMPLEX - Old code was also MKST.] Not Entered
[Formerly known as SCAR HOUSE FORMATION - Old code was also SHF.] Appears on the Masham (E51) Sheet, following terminology erected by Wilson (1960).
[Formerly known as STONEHAVEN BEDS.] (Hickling, G, 1908; Campbell, R, 1913).
[Otherwise known as COLNE VALLEY DEPOSITS.] Laterally equivalent.
[Formerly known as SHEPPERTON GRAVEL - Old code was also SHGR.] Not Entered
[Formerly known as NEAERAN BEDS.] Walford, 1906.
[Formerly known as SHARP'S HILL BEDS - Old code was also SHHB.] Arkell, 1933, 297 - 301.
[Otherwise known as HOLLANDBUSH SPLINT COAL.] Not Entered
[Otherwise known as SOFT COAL.] Not Entered
[Otherwise known as ACRE COAL.] Not Entered
[Formerly known as BORELAND FORMATION - Old code was BORL.] Boreland Formation is a redundant junior synonym of Shinnel Formation (Floyd, 1996).
[Formerly known as ARDLEY BEDS.] Lower part of Ardley Beds of Arkell, W J, 1931
[Formerly known as CROUGHTON MEMBER.] Palmer, T J, 1974
[Formerly known as EXCAVATA BEDS.] Barker, M J, 1976
[Formerly known as BILSTON BURN LIMESTONE - Old code was BIBU.] Redundant full synonym.
[Formerly known as MID KINNINY LIMESTONE - Old code was MIKI.] Redundant full synonym.
[Otherwise known as SHREWSBURY FORMATION.] Synonyms (Shrewsbury Formation sensu Worsley, 1991; Bowen, 1999).
[Formerly known as BOULDER CLAY.] The Formation comprises the combined Fluvio-glacial Flood Gravels and Boulder Clay of Pocock et al., 1938.
[Formerly known as FLUVIO-GLACIAL FLOOD GRAVELS.] The Formation comprises the combined Fluvio-glacial Flood Gravels and Boulder Clay of Pocock et al., 1938.
[Formerly known as LOWER KEUPER SANDSTONE AND WATERSTONES.] (Fox-Strangeways, C, 1905).
[Formerly known as SAUGH HILL FORMATION - Old code was SHLF.]
[Formerly known as SAUGH HILL GRITS - Old code was SHLG.] Not Entered
[Formerly known as SAUGH HILL SANDSTONES AND GRITS.] Not Entered
[Formerly known as SHINETON SHALES - Old code was also SHSH.] Not Entered
[Formerly known as SHOPS SANDSTONE FORMATION.] Fletcher & Key, 1992; Nirex 658, 1994.
[Formerly known as PILLOW LAVA DIVISION.] Thomas and Thomas 1956.
[Formerly known as SHAP LIMESTONE.] Not Entered
[Formerly known as BLACK MARL.] Included in Black Marl (ie. Black Ven Marls, prior to Lang, W D, 1914.
[Formerly known as SHALES-WITH-BEEF.] Not Entered
[Formerly known as SHAP CONGLOMERATE FORMATION - Old code was SHPC.] Confirmed as Obsolete by M McCormac, 28/07/2006.
[Formerly known as CHERT BEDS.] Included in Chert Beds of Jukes-Browne, A J and Hill, W, 1900
[Formerly known as RAGSTONE.] Drummond, 1970.
[Formerly known as RAGSTONE AND FREESTONE BEDS.] White, 1923, p.51.
[Formerly known as RAGSTONE BEDS.] White, 1923, p.46.
[Formerly known as KEMBLE BEDS.] As originally conceived by Woodward, H B, 1894; see Cox, B M, et al, (In preparation)
[Formerly known as KEMBLE BEDS UNITS I AND II.] Worssam, B C and Bisson, G, 1961
[Formerly known as SIGNET BEDS.] Plus underlying marl in type section. Worssam, B C and Bisson, G, 1961
[Formerly known as SIDES FARM MEMBER - Old code was also SIFA.] Not Entered
[Formerly known as SILCHESTER GRAVEL - Old code was also SIGR.] Not Entered
[Formerly known as CATON SHALE.] Lancaster district, now subsumed into the Silsden Formation. Brandon et al., 1998.
[Formerly known as CLAUGHTON FORMATION.] Lancaster district, now subsumed into the Silsden Formation, Brandon et al., 1998.
[Formerly known as CROSSDALE MUDSTONE FORMATION.] Lancaster district, now subsumed into the Silsden Foramtion. Brandon et al., 1998.
[Formerly known as ROEBURNDALE FORMATION.] Lanacster district, now subsumed into the Silsden Formation. Brandon et al., 1998.
[Formerly known as SILSDEN MOOR GRIT GROUP.] Bradford District. Stephens et al., 1953.
[Formerly known as SILVER HILLS SANDSTONE FORMATION.] Lancaster district, now subsumed into the Silsden Formation. Brandon et al., 1998.
[Formerly known as WARD'S STONE SANDSTONE FORMATION.] Lancaster district, now subsumed into the Silsden Formation. Brandion et al., 1998.
[Otherwise known as DOWSING FORMATION AND DUDGEON FORMATION.] Southern North Sea Basin. Johnson et al., 1994.
[Otherwise known as LEYLAND FM PLUS PREESALL HALITE FM, DOWBRIDGE MUDSTONE FM AND WARTON HALITE FM.] Jackson et al., 1997. (Warton Halite Formation in the East Irish Sea Basin only).
[Formerly known as ELDERSFIELD MUDSTONE FORMATION - Old code was ELM.] Barclay et al., 1997.
[Formerly known as LOWER KEUPER MARL - Old code was LKM.] Wills, 1970.
[Formerly known as LOWER KEUPER MARL(S).] Approximately equivalent. Brodie, 1870; Harrison, 1876; Matley, 1912.
[Formerly known as MUDSTONE I.] Approximately equivalent to Mudstone I of Jeans, 1978.
[Formerly known as SUB-ARDEN KEUPER MARLS.] Approximately equivalent. Wills, 1976.
[Formerly known as SANDROCK "SERIES" - Old code was SRS.] Upper Clays and Sandrock (Fitton, 1847).
[Formerly known as SANDROCK [ISLE OF WIGHT] - Old code was also SIOW.] Not Entered
[Formerly known as SIDE PIKE COMPLEX - Old code was also SIPI.] Formerly inappropriately ranked in the BGS Lexicon.
[Formerly known as JOHNSHAVEN FORMATION.] Armstrong, M and Paterson, I B, 1970. Included within the Johnshaven Formation. The use of this name is now discontinued in this area.
[Formerly known as ST JOHN'S KNAP SANDSTONE FORMATION - Old code was also SJKS.] Not Entered
[Formerly known as SKAW GRANITE.] Not Entered
[Formerly known as GRAPTILIFEROUS MUDSTONES.] Not Entered
[Formerly known as SKELGILL BEDS - Old code was also SKB.] Not Entered
[Formerly known as SKELGILL MEMBER.] Not Entered
[Formerly known as SKELGILL SHALES - Old code was SGSH.] As used, for example, on the BGS Cross Fell Special Sheet [1:25000].
[Formerly known as BROOK FORMATION.] The Subgroup includes fluvial deposits formerly attributed to the Brook Formation of Gibbard, 1999.
[Formerly known as KENTISH STOUR FORMATION.] The Subgroup includes fluvial deposits formerly attributed to the Kentish Stour Formation of Gibbard, 1999.
[Formerly known as PEGWELL FORMATION.] The Subgroup includes fluvial deposits formerly attributed to the Pegwell Formation of Gibbard, 1999.
[Otherwise known as STINK VEIN.] Not Entered
[Formerly known as STINK VEIN.] Not Entered
[Formerly known as SKIDDAVIAN (SERIES).] The Latterbarrow Formation (Latterbarrow Sandstone) was included in the Group until Allen and Cooper (1986) showed it is part of the basal Borrowdale Volcanic Group. Allen and Cooper, 1986; Webb, 1972; Sedgwick, 1832; Dixon, 1931; Shotton, 1935, etc.
[Formerly known as SKIDDAW SLATE GROUP.] The Latterbarrow Formation (Latterbarrow Sandstone) was included in the Group until Allen and Cooper (1986) showed it is part of the basal Borrowdale Volcanic Group. Allen and Cooper, 1986; Webb, 1972; Sedgwick, 1832; Dixon, 1931; Shotton, 1935, etc.
[Formerly known as SKIDDAW SLATES - Old code was SKSL.] The Latterbarrow Formation (Latterbarrow Sandstone) was included in the Group until Allen and Cooper (1986) showed it is part of the basal Borrowdale Volcanic Group. Allen and Cooper, 1986; Webb, 1972; Sedgwick, 1832; Dixon, 1931; Shotton, 1935, etc.
[Formerly known as SKIDDAVIAN (SERIES) - Old code was SKVN.] SKV
[Formerly known as SKIDDAW SLATE GROUP.] Not Entered
[Formerly known as SKIDDAW SLATES - Old code was SKSL.] Webb, 1972; Sedgwick, 1832; Dixon, 1931; Shotton, 1935; Burgess and Wadge, 1974. The Latterbarrow Formation (or Latterbarrow Sst) was included in the Skiddaw Group until Allen & Cooper (1986), showed that it is part of the basal Borrowdale Volcanic Gp.
[Formerly known as SKIDDAW GRANITE - Old code was also SKID.] Name now generalised to allow for rock types other than granite within the intrusion.
[Formerly known as SAND OF 25 FOOT DRIFT OF THE VALE OF YORK.] British Geological Survey, 1973.
[Formerly known as SKIPWITH COMMON SAND MEMBER.] Initial name, subsequently revised prior to extensive use.
[Formerly known as SHOALSHOOK LIMESTONE.] Incorrect (junior) spelling.
[Formerly known as SKELMORLIE CONGLOMERATE.] Not Entered
[Formerly known as SKELMORLIE FORMATION.] Not Entered
[Otherwise known as NINE FEET COAL.] May be equivalent.
[Otherwise known as DULAS COAL AND NINE FEET COAL.] The Dulas Coal and Nine Feet Coal together form the Stanllyd (or Hwch) Coal.
[Otherwise known as HWCH COAL.] Not Entered
[Formerly known as SYENITES.] Hill & Bonney, 1878
[Formerly known as ALLUVIAL DEPOSITS AND PEAT.] Whittaker and Green, 1983.
[Formerly known as ESTUARINE ALLUVIUM AND HIGHER ESTUARINE ALLUVIUM.] Green and Welch, 1965.
[Formerly known as STINCHAR LIMESTONE - Old code was STLM.] Not Entered
[Otherwise known as SALTERELLA GRIT MEMBER.] Not Entered
[Formerly known as SALTERELLA GRIT OR QUARTZITE - Old code was SGQ.] Not Entered
[Formerly known as BARREN FLAGSTONES.] (Lapworth, 1882)
[Formerly known as SHALLOCH FLAGSTONE FORMATION.] Not Entered
[Formerly known as DEVONIAN FINTONA GROUP.] Component formations formerly assigned to above group by Simon, 1984. Now allocated to the Slievebane Group.
[Formerly known as LANDSLIDE.] Not Entered
[Formerly known as LANDSLIP - Old code was also SLIP.] Not Entered
[Otherwise known as WHEATLEY LIME COAL (WEST YORKSHIRE).] Correlated seam.
[Otherwise known as TRENCHARD GROUP.] Stallion Hill Formation possibly equates with the Trenchard Group.
[Formerly known as SLOCKENRAY FORMATION.] Not Entered
[Formerly known as REDHILL AND SLADE BEDS.] Not Entered
[Formerly known as PENDLE SHALE FORMATION.] Baines, 1977; Sims, 1988.
[Formerly known as SURGILL SHALE MEMBER - Old code was also SLSH.] Rank reduced to Bed.
[Formerly known as SURGILL SHALES.] Bray, 1927.
[Formerly known as SELSEY "DIVISION".] Curry et al, 1977.
[Formerly known as SELSEY FORMATION.] Stinton, 1975.
[Formerly known as HEVERSHAM HOUSE SANDSTONE MEMBER - Old code was HHO.] Not Entered
[Formerly known as SILVER HILLS GRIT.] Bisat and Hudson, 1943.
[Formerly known as SLEAFORD SANDS AND GRAVELS.] These beds (Berridge et al., 1999) are included in the Formation.
[Formerly known as SLYVING VEIN.] Not Entered
[Otherwise known as LINDLEY MOOR GRIT.] Not Entered
[Formerly known as ANGULATA CLAYS.] Approximately equivalent.
[Formerly known as BUCKLANDI CLAYS.] Approximately equivalent.
[Formerly known as FERRUGINOUS LIMESTONE SERIES.] Approximately equivalent.
[Formerly known as GRANBY LIMESTONES.] Approximately equivalent
[Formerly known as HYDRAULIC LIMESTONES.] Approximately equivalent
[Formerly known as SCUNTHORPE MUDSTONES - Old code was also SMD.] Not Entered
[Formerly known as SCUNTHORPE MUDSTONES FORMATION.] Gaunt, G D, Fletcher, T P and Wood, C J, 1992.
[Formerly known as COTEHELE FORMATION.] (Whiteley, M J, 1981).
[Formerly known as COTEHELE SANDSTONE FORMATION.] Whiteley, 1983.
[Formerly known as CRACKINGTON FORMATION.] In part: some rocks formerly attributed to the Crackington Formation probably belong to the St Mellion Formation (Selwood et al., 1984; Reid et al., 1912; BGS, 1995).
[Formerly known as CROCADON FORMATION.] Whiteley, M J, 1981.
[Formerly known as CULM MEASURES.] Reid, C et al, 1911.
[Formerly known as MIDDLE CULM MEASURES.] Ussher, 1907; Reid et al., 1911.
[Formerly known as ST MAUGHAN'S GROUP - Old code was also SMG.] eg Welch and Trotter, 1961.
[Formerly known as HENSINGHAM GROUP - Old code was HGP.] Not Entered
[Formerly known as MILLSTONE GRIT AND UPPER LIMESTONE GROUP.] Includes beds previously included in 'Millstone Grit' and 'Upper Limestone Group' [of Northern England].
[Formerly known as SILSDEN MOOR GRIT GROUP - Old code was also SMGR.] Not Entered
[Formerly known as SAILMHOR GROUP.] Peach et al., 1907; Phemister, 1960.
[Formerly known as SOMERSET HALITE FORMATION - Old code was also SMHF.] Not Entered
[Otherwise known as LOW MAIN COAL.] Locally in parts of the Warwickshire Coalfield.
[Otherwise known as NO.2 LLANTWIT COAL.] Not Entered
[Otherwise known as CANCELLOCERAS CUMBRIENSE MARINE BAND.] Not Entered
[Formerly known as ASSYNT META-OLIVINE SUBSWARM - Old code was AMOG.] Obsolete term.
[Formerly known as OLIVINE GABBRO DYKES OF THE SCOURIE DYKE SWARM.] Tarney and Weaver, 1987.
[Formerly known as SHOULDHAM SANDS.] These (Lewis, 1991) are included in the Formation.
[Formerly known as SHOULDHAM SANDS AND GRAVELS.] These (Lewis, 1991) are included in the Formation.
[Formerly known as DIDYMOGRAPTUS SUPERSTES MUDSTONES - Old code was SUM.] Not Entered
[Formerly known as ST MONANCE WHITE LIMESTONE - Old code was also SMW.] Not Entered
[Formerly known as UPPER ANHYDRITE - Old code was UPA.] Not Entered
[Formerly known as SNETTISHAM BEDS.] Whitaker & Jukes-Browne, 1899
[Formerly known as SNETTISHAM CLAY - Old code was also SNC.] Not Entered
[Formerly known as SNETTISHAM CLAY FORMATION - Old code was also SNC.] Not Entered
[Formerly known as BASAL UNIT OF SANDEND GROUP.] (Read, H H, 1923).
[Formerly known as SANDRINGHAM SANDS - Old code was also SNDS.] Not Entered
[Otherwise known as POYNTON FIVE FOOT COAL.] Not Entered
[Otherwise known as STONE MINE COAL.] Not Entered
[Formerly known as STONE MINE.] Not Entered
[Formerly known as STRATHLETHAN FORMATION - Old code was also SNF.] Not Entered
[Formerly known as STRATHLETHAN SANDSTONE FORMATION - Old code was also SNF.] Not Entered
[Formerly known as UPPER HALITE - Old code was UPHL.] Not Entered
[Formerly known as SINGLETON MUDSTONE FORMATION - Old code was also SNM.] Not Entered
[Formerly known as RAVENTHORPE BEDS.] The Santon Oolite is included with ithe Raventhorpe Beds of some authors.
[Formerly known as SANTON OOLITE MEMBER - Old code was also SNO.] Former BGS Lexicon entry. See Supplementary Information Description.
[Formerly known as SANTON OOLITE MEMBER - UPPER LEAF ONLY.] According to the usage of Ashton, 1975, 1980.
[Formerly known as LOWER SHEEN GRIT; UPPER SHEEN GRIT.] Bisat and Hudson, 1943.
[Otherwise known as WATLING SHALES; BROCKHURST SHALES.] Lapworth, 1910.
[Formerly known as STRETTON SHALE.] Lapworth, 1910.
[Formerly known as STRETTON SHALE GROUP.] Greig et al, 1968.
[Formerly known as ST NON'S SANDSTONE - Old code was also SNSS.] Cowie, Rushton and Stubblefield, 1972.
[Formerly known as WOODTHORPE FORMATION + COLWICK FORMATION.] Warrington et al, 1980
[Formerly known as WOODTHORPE FORMATION + WATERSTONES FORMATION.] Elliott, 1961
[Formerly known as OLDER RIVER GRAVEL FORMATION.] Reid, 1899.
[Formerly known as PLATEAU GRAVELS.] Reid, 1899.
[Formerly known as VALLEY GRAVEL.] Reid, 1899.
[Formerly known as SANTON FORMATION.] Woodcock et al., 1999.
[Formerly known as SOUTHACRE CLAY AND LIGNITE - Old code was also SO.] Not Entered
[Formerly known as SOUTHACRE CLAY-AND-LIGNITE MEMBER.] Hyphens have now been removed from the name.
[Otherwise known as GREEN COAL [SOUTH WALES COALFIELD].] Not Entered
[Formerly known as UPPER DALRADIAN GROUP - Old code was DC.] Not Entered
[Formerly known as SOLID AT OR NEAR SURFACE - Old code was also SOL.] The long-standing BGS use of the term "Solid" is discontinued in favour of using "Bedrock".
[Formerly known as SOUTHERNESS BEDS - Old code was SOBS.] Craig, 1956; Deegan, 1970
[Formerly known as SOUTHERNESS LIMESTONE FORMATION - Old code was also SOLM.] Not Entered
[Otherwise known as BRITANNIC MARINE BAND.] Local name in part(s) of the South Wales Coalfield, possibly still in use to some extent.
[Otherwise known as CLAYTON MARINE BAND.] Local name, North Staffordshire (coalfield) area, possibly still in use to some extent.
[Otherwise known as HYLTON MARINE BAND.] Local name, Northumberland and Durham coalfield areas, possibly still use to some extent.
[Otherwise known as KNOTTYHOLM MARINE BAND.] Local name, Canonbie Coalfield area, possibly still in use to some extent.
[Otherwise known as MOSTON MARINE BAND.] Local name in part(s) of the Lancashire Coalfield, possibly still in use to some extent.
[Otherwise known as TRIMSARAN MARINE BAND.] Local name in part(s) of the South Wales Coalfield, possibly still in use to some extent.
[Formerly known as BRITANNIC MARINE BAND - Old code was BRIMB.] Local name in part(s) of the South Wales Coalfield, possibly still in use to some extent.
[Formerly known as CLAYTON MARINE BAND - Old code was CTNMB.] Local name, North Staffordshire (coalfield) area, possibly still in use to some extent.
[Formerly known as HYLTON MARINE BAND - Old code was HYMB.] Local name, Northumberland and Durham coalfield areas, possibly still use to some extent.
[Formerly known as KNOTTYHOLM MARINE BAND - Old code was KMMB.] Local name, Canonbie Coalfield area, possibly still in use to some extent.
[Formerly known as MOSTON MARINE BAND - Old code was MTNMB.] Local name in part(s) of the Lancashire Coalfield, possibly still in use to some extent.
[Formerly known as TRIMSARAN MARINE BAND - Old code was TSNMB.] Local name in part(s) of the South Wales Coalfield, possibly still in use to some extent.
[Formerly known as SOLVA SERIES.] Not Entered
[Otherwise known as RED BURN MEMBER.] Of the Sourlie Formation of Bowen, 1999.
[Formerly known as UNIT D.] Of Jardine et al., 1988.
[Formerly known as OLDER RIVER SAND AND GRAVEL.] Some of the deposits were included, with other units, in this division on BGS Sheet 114.
[Formerly known as RIVER TERRACE DEPOSITS.] The deposits were included, with other units, in this division on BGS Sheet 102.
[Formerly known as RIVER TERRACE SAND AND GRAVEL, UNDIFFERENTIATED.] Some of the deposits were included, with other units, in this division on BGS Sheet 114.
[Formerly known as SOUTHREY MEMBER.] Bowen, 1999.
[Formerly known as SOUTHREY TERRACE DEPOSITS.] The deposits were included, with other units, in this division by Straw, 1958.
[Formerly known as UPPER RIVER TERRACE.] (TERRACE 2) The deposits were included, with other units, in this division on BGS Sheet 115.
[Formerly known as SUPRA-PENNANT GROUP.] Not Entered
[Formerly known as SUPRA-PENNANT MEASURES - Old code was SPM.]
[Formerly known as SUPRA-PENNANT SERIES - Old code was also SP.] Not Entered
[Formerly known as SPANGO GRANODIORITE.] Not Entered
[Formerly known as SPOTTED BEDS - Old code was also SPB.] Not Entered
[Formerly known as SPIRORBIS LIMESTONE - Old code was also SPBL.] Not Entered
[Formerly known as SAMPFORD PEVERELL BRECCIAS - Old code was also SPBR.] Not Entered
[Otherwise known as NEOCOMIAN STRATA.] Not Entered
[Formerly known as NEOCOMIAN STRATA.] Judd, 1870.
[Formerly known as SPEETON CLAY - Old code was also SPC.] Most authors since Phillips, 1829.
[Formerly known as SPEETON SERIES.] Lamplugh, 1896.
[Formerly known as UPPER SHALE.] Young & Bird, 1822.
[Otherwise known as EQUIVALENT TO THE UPPER PART OF THE CULVER CHALK.] (Of) Mortimore, 1986.
[Otherwise known as STONEPIT VEIN.] Not Entered
[Formerly known as STONEPIT VEIN.] Not Entered
[Formerly known as SPOUTY DENNANS FORMATION.] Not Entered
[Formerly known as 6TH TERRACE (RIVER SEVERN).] Not Entered
[Formerly known as BUSHLEY GREEN TERRACE (UPPER PART).] Not Entered
[Formerly known as SIXTH TERRACE [DEPOSITS].] Mitchell et al, 1962; Worssam et al, 1989.
[Formerly known as SPRING HILL MEMBER.] Maddy, D, 1995, Bowen, 1999.
[Formerly known as SPRING HILL TERRACE.] Barclay, W J, et al, 1997.
[Formerly known as SPRING HILL TERRACE DEPOSITS - Old code was also SPHT.] Not Entered
[Formerly known as SPRING HILL TERRACE DEPOSITS (RIVER SEVERN) - Old code was also SPHT.] Not Entered
[Otherwise known as HOSPITAL COAL.] Name used in parts of Nottinghamshire.
[Otherwise known as MDLC MIDDLETON LITTLE COAL (WEST YORKSHIRE).] Correlated unit.
[Formerly known as SPITAL FLAGSTONE FORMATION - Old code was SPI.] Incorrect spelling.
[Formerly known as SPITAL FLAGSTONE GROUP.] Incorrect spelling; Rank subsequently revised.
[Otherwise known as SUPRA-PENNANT FORMATION.] Not Entered
[Formerly known as BASAL BEDS.] Rickards, R B, 1970
[Otherwise known as SWINTON POTTERIES COAL.] Not Entered
[Formerly known as SPOTHFORE FORMATION.] Not Entered
[Formerly known as SPRINGPOOL SANDSTONE - Old code was also SPPS.] Not Entered
[Formerly known as SPRINGPOOL SANDSTONE MEMBER - Old code was also SPPS.] Not Entered
[Formerly known as SPRINKLING TARN MEMBER - Old code was also SPR.] BGS Lexicon entry lacked lithology epithet.
[Otherwise known as BUTCOMBE SANDSTONE MEMBER.] Possibly equivalent to the Butcombe Sandstone (Kellaway and Welch, 1993)
[Formerly known as SEVERNSIDE EVAPORITE BED.] Formerly included in Severnside Evaporite Bed (Nickless et al., 1975)
[Formerly known as SPY WOOD GRIT - Old code was SWG.] Not Entered
[Formerly known as SPY WOOD MEMBER.] Not Entered
[Otherwise known as PARKHOUSE BECK LIMESTONE.] Possible correlatives.
[Otherwise known as FOLKESTON VEIN.] Not Entered
[Formerly known as FOLKESTON VEIN.] Not Entered
[Formerly known as SANDEND GROUP (UPPER PART).] Read 1923
[Otherwise known as FORSE TILL MEMBER OF THE LYBSTER FORMATION.] Hall and Whittington, 1989.
[Formerly known as CAITHNESS SHELLY DRIFT.] Sissons, 1967.
[Formerly known as LYBSTER TILL.] Omand, 1973.
[Formerly known as SHELLY BOULDER CLAY.] Crampton and Carruthers, 1914.
[Formerly known as SHELLY TILL.] Johnstone and Mykura, 1989
[Formerly known as FRESHWATER ALLUVIUM.] Not Entered
[Otherwise known as Cowleigh Park Formation.] May be in part equivalent to the Cowleigh Park Formation of the north Malverns, Barclay et al. 1997.
[Formerly known as Rhuddanian-Aeronian Stages.] Referred to by Butler et al., 1997.
[Otherwise known as FOXHOLES MINE COAL.] Not Entered
[Otherwise known as MARY COAL.] Not Entered
[Formerly known as FOXHOLES MINE.] Not Entered
[Formerly known as MOINE SERIES.] Originally included within the Moine "Series".
[Otherwise known as BNM3 THIRD BROWN METAL COAL (WEST YORKSHIRE).] Correlated unit.
[Formerly known as BLACK ROCK DOLOMITE.] Kellaway and Welch, 1955.
[Formerly known as BLACK ROCK LIMESTONE.] (pars) Kellaway and Welch, 1955.
[Formerly known as LAMINOSA DOLOMITE - Old code was LAD.] Vaughan, 1905
[Formerly known as LANGLAND DOLOMITE - Old code was LGD.] George et al., 1976
[Formerly known as LOWER DOLOMITE - Old code was LD.] (pars) Kellaway and Welch, 1955
[Formerly known as PENMAEN BURROWS LIMESTONE - Old code was PBL.] (pars) Institute of Geological Sciences, 1973
[Formerly known as RUDRY FORMATION - Old code was RDY.] (pars) George et al., 1976
[Formerly known as TEARS POINT LIMESTONE - Old code was TPLM.] George et al., 1976
[Otherwise known as BOTTOM MAIN COAL.] Not Entered
[Otherwise known as F2.] British Coal Index
[Formerly known as FULLER'S EARTH.] Due to misunderstanding of lateral relationships. See references in Penn, I E and Wyatt, R G, 1979.
[Formerly known as FRITH CRAG MEMBER - Old code was also FRCR.] BGS Lexicon entry lacked lithology epithet.
[Formerly known as FRITH CRAG TUFFS.] Nutt, 1970
[Otherwise known as FREESTONE SERIES.] This term and the equivalent term "Portland Freestone" were emended to Portland Freestone Member by Wimbledon and Cope (1978).
[Formerly known as FARRINGTON FORMATION - Old code was also FRF.] (Kellaway & Welch, 1993)
[Formerly known as FARRINGTON GROUP - Old code was also FRF.] (Kellaway, 1969)
[Formerly known as BASEMENT BEDS.] Not Entered
[Formerly known as ALLUVIAL FAN DEPOSITS.] Old et al., 1987.
[Formerly known as DUNSMORE GRAVEL.] Included in this unit by Shotton, 1987.
[Formerly known as FROG HALL SAND AND GRAVEL.] Sumbler, 1989.
[Formerly known as FARLOW GROUP.] Not Entered
[Otherwise known as HARESHAW HEAD COAL.]
[Otherwise known as HIGHGREEN COAL.] Not Entered
[Formerly known as SEVENTH LIMESTONE.] Akhurst et al., 1997; Eastwood et al., 1931.
[Formerly known as HELSBY SANDSTONE FORMATION.] Included in Helsby Sandstone Formation, Earp, J R and Taylor, B J, 1986, in previous geological surveys. Name first defined by Thompson, D B, 1970a.
[Formerly known as OOLITIC AND NODULAR BEDS.] Jones, 1932
[Formerly known as OOLITIC IRONSTONE.] Cox, 1925.
[Formerly known as FERNAGH ANDESITE AND DACITE FORMATION (OBSOLETE NAME AND CODE: USE FRNA) - Old code was FADF.] Not Entered
[Formerly known as FERRUGINOUS SAND.] BGS 1" Sheet 330, 1970, and Sheet 331, 1970.
[Formerly known as FERRUGINOUS SANDS.] Fitton, 1847; Casey, 1961.
[Formerly known as FRESGEO SANDSTONE MEMBER.] NIREX 658, 1994.
[Formerly known as FRONDDERW ASH - Old code was FRA.] Elles, G L. 1922, pp.132-173.
[Otherwise known as LOWER SWANSEA SIX FEET COAL.] Not Entered
[Formerly known as FINDHORN SANDSTONE GROUP - Old code was also FSA.] Not Entered
[Formerly known as UPPER OLD RED SANDSTONE.] Not Entered
[Formerly known as "SANDS AND GRAVELS OF FARINGDON".] Austen, 1850; Sharpe, 1854.
[Formerly known as FARINGDON SPONGE GRAVELS.] Divided into Yellow Gravel and Red Gravel (Arkell, 1947).
[Formerly known as THE SPONGE GRAVELS OF FARRINGDON.] Mantell, 1839.
[Formerly known as BACKFOLDS PALAEOSOL.] of the Kirkhill Formation of Sutherland, 1999.
[Formerly known as FERNIESLACK PALAEOSOL BED.] Merritt, Connell and Bridgland. 2000.
[Formerly known as KIRKHILL UPPER BURIED SOIL.] Connell, Hall and Romans. 1984; Hall and Jarvis. 1993.
[Formerly known as UPPER BURIED SOIL.] Connell, Edwards and Hall. 1982.
[Otherwise known as SUGAR SANDS LIMESTONE.] Correlative in the Howick area.
[Otherwise known as "FERRUGINOUS LIMESTONE SERIES".] Approximately equivalent to the Foston Member.
[Otherwise known as FERRUGINOUS LIMESTONE.] Partly equivalent to Foston Member.
[Otherwise known as IRONSTONE SERIES.] Partly equivalent to Foston Member.
[Formerly known as FOSTON LIMESTONES - Old code was also FSTL.] Not Entered
[Formerly known as FROSWICK FORMATION - Old code was also FSW.] Lithological epithet added [D Millward] 07/03/2003.
[Formerly known as FROSWICK TUFFS.] Mitchell, 1929.
[Formerly known as FOXLEY TUFF - Old code was also FT.] Not Entered
[Otherwise known as FULLEDGE THIN MINE COAL.] Not Entered
[Formerly known as FULLEDGE THIN MINE.] Not Entered
[Otherwise known as ADWALTON STONE COAL.] Not Entered
[Otherwise known as MIDDLETON HIGH MAIN COAL.] Not Entered
[Otherwise known as ADWALTON BLACK BED COAL.] Not Entered
[Otherwise known as DOGGY COAL.] Not Entered
[Otherwise known as GAWBER COAL (WEST YORKSHIRE).] Correlated equivalent unit, sensu stricto.
[Formerly known as FUCOID BEDS - Old code was also FUB.] Lapworth, 1883.
[Formerly known as FUCOID BEDS FORMATION.] Johnstone and Mykura, 1989.
[Formerly known as FUCOID SHALES.] Peach et al., 1907.
[Otherwise known as PIPER'S CROSS COAL.] Possible correlative.
[Formerly known as BASSINGHAM FEN MEMBER.] A J Howard, in Bowen, 1999.
[Formerly known as FULBECK MEMBER - Old code was also FULB.] Bowen, 1999.
[Formerly known as FULBECK SAND AND GRAVEL - Old code was also FULB.] Not Entered
[Formerly known as GLACIAL SAND AND GRAVEL.] Part included under this general heading on Sheet 143.
[Formerly known as OLDER RIVER SAND AND GRAVEL.] Part included under this general heading on Sheet 114.
[Formerly known as RIVER TERRACE DEPOSITS, UNDIFFERENTIATED.] Part included under this general heading on Sheet 114.
[Otherwise known as MURCHISONI BEDS.] This is a possible partial or full synonym of the Murchisoni Beds of the Carmarthen district (Strahan et al., 1909).
[Otherwise known as FOOT OF WHISKEY SIKE COAL.] This spelling was used in the Lexique Stratigraphique International.
[Formerly known as UPPER BOULDER CLAY.] Member equates with some deposits assigned to the Upper Boulder Clay as used by Eastwood et al (1931) and Trotter et al (1937).
[Otherwise known as FOXMOULD.] Jukes-Browne and Hill, 1900
[Otherwise known as FOXMOULD SANDS.]
[Otherwise known as GREENSANDS.] Not Entered
[Formerly known as FOXMOULD AND COWSTONE BEDS.] De la Beche, H, 1826
[Formerly known as CHALK WITHOUT FLINTS.] Corresponds with Chalk without Flints of early Geological Survey maps.
[Formerly known as FERRIBY FORMATION - Old code was also FYCK.] Name now reverts to its original form, including Chalk epithet.
[Formerly known as LOWER CHALK.] Corresponds with Lower Chalk of early Geological Survey maps, but excluding Plenus Marls.
[Formerly known as FOEL Y DDINAS MUDSTONES - Old code was also FYD.] Not Entered
[Otherwise known as EELWELL LIMESTONE.] Correlated with the Eelwell Limestone of Northumbria
[Formerly known as FIVE YARD LIMESTONE - Old code was also FYL.] Not Entered
[Formerly known as CUMBRIENSE MARINE BAND - Old code was CBMB.] Not Entered
[Formerly known as GASTRIOCERAS CUMBRIENSE MARINE BAND - Old code was CBMB.] Not Entered
[Formerly known as GAFALLT SHALES - Old code was also GA.] Lapworth, 1900.
[Formerly known as GAFALLT SHALES FACIES FORMATION - Old code was also GA.] Not Entered
[Formerly known as GLENGAWNA FORMATION (OBSOLETE CODE: USE GAA) - Old code was DCGF.] Not Entered
[Formerly known as GREEN AMMONITE BEDS.] Day, E C H, 1863.
[Formerly known as WEAR CLIFF BEDS.] Woodward, H B and Ussher, W A E, 1911.
[Formerly known as GAIRBEINN PSAMMITE FORMATION.] Haselock, et al. 1982; BGS, 1996.
[Formerly known as GLENARM CHALK.] Fletcher, 1967
[Formerly known as GLENARM CHALK MEMBER.] Not Entered
[Formerly known as DOWLAIS LIMESTONE.] The Garn Caws Sandstone Member was formerly included in the Dowlais Limestone of George, 1954.
[Formerly known as GARN CAWS SANDSTONE - Old code was also GACA.] Name formalized at Formation level.
[Formerly known as GILWERN CLAY MEMBER.] The Garn Caws Sandstone Member was formerly included in the Gilwern Clay Member of the Llanelly Formation of Wright, 1981.
[Formerly known as GARBURN FORMATION - Old code was also GAD.] Sensu BGS: lithological epithet re-inserted [D Millward] 06/03/2003.
[Formerly known as GARBURN FORMATION [PART].] The GAD was part of the Garburn Formation sensu Soper, N J and Numan N M S, 1974.
[Formerly known as UPPER RHYOLITES.] No. 9 on the map of Mitchell, G H, 1929.
[Formerly known as GAERFAWR GROUP - Old code was GGP.] Rank status, downgraded to formation.
[Formerly known as SANDSTONES AND MARLS.] Barclay, 1975.
[Otherwise known as KILFILLAN FORMATION.] Of the Rhins of Galloway, Sheet1/3, and Wigtown, Sheet 4W.
[Formerly known as GALA GROUP.] Lapworth, 1871.
[Formerly known as QUEENSBERRY GRITS.] Peach and Horne, 1899.
[Otherwise known as MINDORK FORMATION.] Of the Rhins of Galloway, Sheet 1/3, and Wigtown, Sheet 4W, Stone, 1995; Barnes, in prep.
[Formerly known as PYROXENOUS GREYWACKE GROUP.] Walton, 1955.
[Otherwise known as MONEY HEAD FORMATION.] Of the Rhins of Galloway, Sheet 1/3, Stone, 1995.
[Formerly known as GALA GROUP.] Lapworth, 1971.
[Otherwise known as SINNINESS FORMATION OF WIGTOWN.] Sheet 4W. Barnes, in prep.
[Otherwise known as SINNINESS OR FLOAT BAY FORMATION OF THE RHINS OF GALLOWAY.] Sheet 1/3. Stone, 1995.
[Formerly known as INTERMEDIATE GREYWACKE GROUP.] Walton, 1955.
[Otherwise known as GARHEUGH FORMATION.] Stinking Bight Beds of the Rhins of Galloway, Sheet1/3, Stone,1995. Wigtown, Sheet 4W, Barnes, in prep.
[Otherwise known as GRENNAN POINT FORMATION OF THE RHINS OF GALLOWAY.] Sheet1/3. Stone, 1995.
[Otherwise known as MULL OF LOGAN FORMATION OF THE RHINS OF GALLOWAY (SHEET 1/3).] Stone, 1995.
[Formerly known as INTERMEDIATE AND GARNETIFEROUS GREYWACKE GROUPS.] Walton, 1955.
[Formerly known as QUEENSBERRY GRITS.] Peach & Horne, 1899.
[Otherwise known as PORT LOGAN FORMATION OF THE RHINS OF GALLOWAY (SHEET 1/3).] Stone, 1995.
[Formerly known as STRANGFORD GROUP - Old code was STRN.] Term formerly used to cover greywacke/turbidite sequences of Llandovery age in Northern Ireland.
[Formerly known as GLEN APP CONGLOMERATE - Old code was GAPC.] Not Entered
[Formerly known as BEN WYVIS PSAMMITE.] Wilson, 1975; Grant, 1989; Holdsworth, 1994.
[Otherwise known as CRIBBWR FACH COAL [SOUTH WALES COALFIELD].] Not Entered
[Formerly known as GARRON POINT ACTINOLITIC SCHISTS.] (Read, H H, 1923).
[Formerly known as BULLION MINE ROCK.] Not Entered
[Formerly known as GARANTIANA SHALE MEMBER - Old code was also GASH.] BGS Map S71W 2002 and Morton, N and Hudson, J D, 1995
[Formerly known as DRIFT DEPOSITS.] Not Entered
[Formerly known as GREAT BRITAIN GLACIGENIC SUPERGROUP - Old code was also GBG.] Early nomenclature revised prior to code use, to encompass the full gamut of superficial deposits.
[Formerly known as GLENKILN BLACK SHALES - Old code was also GBS.] Not Entered
[Formerly known as GLENKILN SHALES.] Lapworth, 1878
[Formerly known as BLAIR ATHOLL DARK LIMESTONE AND DARK SCHIST.] Not Entered
[Formerly known as GLEN BEAG SCHIST.] (Upton, 1986)
[Otherwise known as GLEN PARK VOLCANIC DETRITAL MEMBER.] This term was established to replace Glenburn Volcanic Detrital Member, which was considered Obsolete. The original name has been reinstated and the newer alternative is no considered Obsolete in BGS usage.
[Formerly known as GLEN PARK VOLCANIC DETRITAL MEMBER - Old code was GPVD.] This term was established to replace Glenburn Volcanic Detrital Member, which was considered Obsolete. The original name has been reinstated and the newer alternative is no considered Obsolete in BGS usage.
[Formerly known as GLENBURN VOLCANIC DETRITAL MEMBER - Old code was also GBV.] Not Entered
[Formerly known as GLAS COIRE ALLUVIAL MEMBER - Old code was also GCAL.] Not Entered
[Formerly known as TILL OF "EARLY SCOTTISH GLACIATION".] Not Entered
[Formerly known as GREAT CAVERNS CONGLOMERATE [SIC] - Old code was also GCC.] Typographical error in the original Lexicon entry. "Great Caverns Conglomerate" does not exist.
[Otherwise known as HATTON CONGLOMERATE MEMBER.] Not Entered
[Otherwise known as LAUDER CONGLOMERATE.] Obsolete name.
[Formerly known as GREAT CONGLOMERATE.] Davies et al, 1986; Clough et al, 1910.
[Formerly known as LAUDER CONGLOMERATE.] Not Entered
[Formerly known as LOWER OR GREAT CONGLOMERATE.] Howell et al, 1866.
[Formerly known as PRE-VOLCANIC SEDIMENTARY ROCKS AT BELL HILL.] Greig, D C. 1988.
[Otherwise known as BEINN A'GHLO SCHIST.] (Sheet 55E)
[Formerly known as GLEN CLUNIE SCHIST FORMATION - Old code was GCLS.] Duplicate code issued in error for use on Provisional map sheet S65W.
[Otherwise known as LOWER FOOT COAL.] Not Entered
[Formerly known as GALBOLY CHALK MEMBER.] Not Entered
[Formerly known as BRUAR PSAMMITE FORMATION.] In part equivalent to the BRUAR PSAMMITE FORMATION (Sheet 55W; Treagus, 2000)
[Formerly known as DRUMOCTER SUCCESSION.] In part equivalent to the DRUMMOCTER SUCCESSION (Harris et al., 1994).
[Formerly known as MOINE "SERIES".] Originally included within the Moine "Series".
[Otherwise known as CANCELLOCERAS CANCELLATUM MARINE BAND.] Not Entered
[Formerly known as MOTTLED SHALE.] (Green, J F N, 1913)
[Formerly known as MOTTLED TUFF.] (Rose, W C C and Dunham, K C, 1977)
[Formerly known as GLENCOE QUARTZITE MEMBER.] Presumed typographical error. Original Lexion entry now flagged as Obsolete.
[Formerly known as BEDDED AGGLOMERATE OF GREENAN CASTLE.] Eyles et al., 1949.
[Formerly known as GREENAN CASTLE ASH.] Whyte, 1964.
[Otherwise known as GLEN COE VOLCANIC FORMATION.] GCS is obsolete and replaced by GLVO (Browne et al, 2001).
[Otherwise known as GLEN COE VOLCANIC FORMATION.] GCV is obsolete and replaced by GLVO (Browne et al, 2001).
[Formerly known as GROVESEND BEDS - Old code was also GDB.] Woodland et al., 1957.
[Formerly known as GROVESEND MEMBER.] Previous Lexicon entry at Member Rank.
[Formerly known as SUPRA-PENNANT FORMATION - Old code was SP.] Grovesend Formation replaces this in the new UK stratigraphical framework.
[Formerly known as SUPRA-PENNANT GROUP.] of Bristol and Somerset (Kellaway and Welch, 1993) and the Forest of Dean (Welch and Trotter, 1961).
[Formerly known as SUPRA-PENNANT MEASURES.] of Bristol and Somerset (Kellaway and Welch, 1993) and the Forest of Dean (Welch and Trotter, 1961).
[Formerly known as BEDS OF `FINDON GROUP'.] (Read, 1923, p.168)
[Formerly known as FINDON FISH BED.] (Archer, 1978, p.93)
[Formerly known as UPPER AND LOWER FINDON CONGLOMERATE.] (Archer, 1978, p.93)
[Otherwise known as CRIBBWR FAWR COAL [SOUTH WALES COALFIELD].] Not Entered
[Formerly known as HAWICK GROUP.] Previously included partly with the Hawick Group of Webb et al., 1993.
[Formerly known as HAWICK ROCKS.] Previously included partly with the Hawick Rocks of Peach and Horne, 1899.
[Formerly known as QUEENSBERRY GRITS.] Previously included partly with the Queensberry Grits of Peach and Horne, 1899.
[Formerly known as QUEESNBERRY FORMATION.] Previously included partly with the Queensberry Formation of Webb et al., 1993.
[Formerly known as GLEN DESSARY INTRUSION - Old code was also GDESY.] Not Entered
[Formerly known as CAIRNERZEAN FORMATION - Old code was CAIZ.] Cairnerzean Formation is a redundant junior synonym of Galdenoch Formation (Floyd, 1996).
[Formerly known as GALDENOCH GROUP.] Kelling, 1961.
[Otherwise known as NANTGLYN MUDSTONE FORMATION.] Rocks formerly referred to the Glyn Dyfrdwy Group are now included in the Nantglyn Mudstone Formation.
[Formerly known as KINGSDALE LIMESTONE.] Approximate equivalent: see Arthurton et al., 1988.
[Formerly known as SNAR VALLEY BRECCIA.] Leadhills 1:50 000 15E (Scotland) published 1987.
[Formerly known as SNAR WATER PERMIAN BRECCIA.] Peach, B N and Horne, T, 1899, p.321.
[Otherwise known as LOCH LAGGAN PSAMMITE FORMATION..] Not Entered
[Formerly known as GRINDSLOW SHALES - Old code was also GDS.] Not Entered
[Formerly known as GLACIAL DRIFT (UNDIFFERENTIATED) - Old code was also GDU.] Not Entered
[Formerly known as UPPER RHYOLITE DIVISION.] Thomas and Thomas, 1956.
[Otherwise known as GREAT EASBY MEMBER.] Of Bowen et al., 1999.
[Formerly known as GLACIOLACUSTRINE DEPOSITS.] Not Entered
[Otherwise known as KELLY BURN SANDSTONE FORMATION.] Equivalent in part, to the Kelly Burn Sandstone Formation of the Inverclyde area.
[Formerly known as CLASHBENNY FORMATION - Old code was CHB.] CHB is an obsolete term, replaced by GEF, Browne et al, 2001.
[Formerly known as GLENVALE FORMATION - Old code was also GEF.] Expansion of name to Glenvale Sandstone Formation.
[Formerly known as CARBONIFEROUS LAVAS.] Pringle and Bailey, 1944.
[Formerly known as LOWER OLD RED SANDSTONE LAVAS.] Geike, 1899.
[Formerly known as GELLI-GRIN CALCAREOUS ASH SERIES.] Elles, 1922.
[Formerly known as GELLI-GRIN CALCAREOUS ASHES.] Not Entered
[Formerly known as GLEN EFFOCK SCHISTS.] (Within Effock-Lethnot Group) Harte, B, 1979.
[Formerly known as GREAT ESTUARINE SERIES - Old code was also GEST.] Not Entered
[Formerly known as GLACIOFLUVIAL DEPOSITS, UNDIFFERENTIATED (MIDDLE PLEISTOCENE) - Old code was also GFDMP.] Qualifier deleted, as unnecessary.
[Formerly known as GLACIOFLUVIAL DEPOSITS (UNDIFFERENTIATED) - Old code was also GFDU.] Qualifier deleted, as unnecessary.
[Formerly known as GLACIOFLUVIAL DEPOSITS (UNDIFFERENTIATED), 1 - Old code was also GFDU1.] Qualifier deleted, as unnecessary.
[Formerly known as GLACIOFLUVIAL DEPOSITS, UNDIFFERENTIATED, ANGLIAN.] Qualifier deleted, as unnecessary.
[Formerly known as GLACIOFLUVIAL DEPOSITS, UNDIFFERENTIATED, DEVENSIAN - Old code was also GFDUD.] Qualifier deleted, as unnecessary.
[Formerly known as GLACIOFLUVIAL DEPOSITS, UNDIFFERENTIATED (IRISH SEA ICE) - Old code was also GFDUI.] Qualifier deleted, as unnecessary.
[Formerly known as KNOLL REEF.] Not Entered
[Formerly known as REEF LIMESTONE.] Not Entered
[Formerly known as MIDDLE SANDS AND GRAVELS.] PART of the Middle Sands and Gravels of Eastwood et al, 1931.
[Formerly known as ST BEES TILL.] Beds described as PART of the St Bees Till by Huddart and Tooley, 1972, and Huddart, 1991.
[Formerly known as FLUVIOGLACIAL SAND AND GRAVEL (OBSOLETE NAME AND CODE: USE GFSG) - Old code was FGSG.] Not Entered
[Formerly known as GLACIOFLUVIAL SUB-GLACIAL DEPOSITS (UNDIFFERENTIATED) - Old code was also GFSU.] Qualifier deleted, as unnecessary
[Formerly known as GLACIOFLUVIAL DEPOSITS, UNDIFFERENTIATED, DEVENSIAN (WELSH ICE) - Old code was also GFUDW.] Qualifier deleted, as unnecessary.
[Otherwise known as BEN LAWERS SCHIST.] Local equivalent of Ben Lawers Schist
[Otherwise known as BEARING GRIT.] Not Entered
[Otherwise known as BRENNAND GRIT.] Dakyns, 1892.
[Otherwise known as WARLEY WISE GRIT.] Dakyns, 1892.
[Formerly known as GRASSINGTON GRIT FORMATION - Old code was also GGF.] Not Entered
[Formerly known as PERMIAN UPPER SANDSTONE.] No previous Lexicon entry for this unit.
[Otherwise known as PENTON LIMESTONE.] Not Entered
[Otherwise known as SCHOOL LIMESTONE.] Not Entered
[Formerly known as RISSINGTON GRAVEL - Old code was also RIN.] Not Entered
[Formerly known as RHAXELLA CHERT - Old code was RCH.] Arkell, 1941; BGS, 1974.
[Formerly known as RAD BROOK BEDS.] Metcalfe, 1981.
[Formerly known as RAVENSHOLME LIMESTONE.] Not Entered
[Formerly known as GLENTHAM FORMATION.] The rocks of the Rutland Formation formerly formed part (the Thorncroft Sand and Priestland Clay) of the GLENTHAM FORMATION (Gaunt et al. 1992).
[Formerly known as UPPER ESTUARINE SERIES - Old code was UE.] Judd, 1875.
[Formerly known as RUCHILL FORMATION - Old code was also RLF.] Not Entered
[Formerly known as ROTLIEGEND GROUP - Old code was also RLG.] Not Entered
[Formerly known as BLANKET HEAD (REGOLITH) - Old code was BHED.] The original combined term is sub-divided to provide both flexibility and precision of attribution. The code BHED remains valid for "blanket head".
[Formerly known as BLUE LIAS - Old code was BLI.] Not Entered
[Formerly known as LIMA BEDS.] Not Entered
[Formerly known as PLAGIOSTOMA BEDS.] Not Entered
[Otherwise known as ETRURIA FORMATION.] Rocks formerly referred to the Ruabon Marl Formation are now assigned to the Etruria Formation (Powell et al, 1999).
[Formerly known as RUABON MARL - Old code was also RM.] Not Entered
[Formerly known as ROSEMARKET BEDS - Old code was also RMB.] Not Entered
[Formerly known as RAISED BEACH DEPOSITS OF LATE-GLACIAL AGE.] Not Entered
[Formerly known as RAISED BEACH DEPOSITS OF POST-GLACIAL AGE.] Not Entered
[Otherwise known as INCE FOUR FOOT COAL.] Not Entered
[Otherwise known as ROGER MINE COAL.] Not Entered
[Formerly known as ROGER MINE.] Not Entered
[Formerly known as RAISED MARINE DEPOSITS (UNDIFFERENTIATED) - Old code was also RMD.] Qualifier deleted, as unnecessary.
[Formerly known as RAISED BEACH DEPOSITS, 1.] Not Entered
[Formerly known as RAISED BEACH DEPOSITS, 2.] Not Entered
[Formerly known as RAISED BEACH DEPOSITS 1.] Not Entered
[Formerly known as RAISED BEACH DEPOSITS, 2,3 ETC.] Not Entered
[Otherwise known as WETHERBY MEMBER.] Yorkshire Province.
[Formerly known as LOWER MAGNESIAN LIMESTONE.] Of County Durham, Tyne and Wear, Cleveland and northernmost North Yorkshire.
[Formerly known as RAISBY (MAGNESIAN LIMESTONE) FORMATION - Old code was also RML.] Not Entered
[Formerly known as FOURTH (KIDDERMINSTER) TERRACE OF THE SEVERN.] Worssam et al, 1989.
[Formerly known as LOWER LIAS - Old code was LLI.] This term was also used in a chronostratigraphical sense.
[Otherwise known as HELL'S MOUTH FORMATION.] Lateral equivalent on the Pwllheli (134) sheet.
[Formerly known as RUNCTON BEDS - Old code was also RNB.] Not Entered
[Formerly known as ROUND HOW BRECCIAS.] (McConnell, B J and Kneller, B C, 1993).
[Formerly known as ROUND HOW MEMBER - Old code was also RND.] Lithological epithet re-inserted by D Millward (05/03/2003).
[Formerly known as MIDDOP LIMESTONE - Old code was MDPL.] Not Entered
[Otherwise known as ROBINSON'S LIMESTONE.] Lexique Stratigraphique, 1971.
[Formerly known as UPPER MEMBER OF THE DALCHARN UPPER TILL.] Upper Member of the Dalcharn Upper Till at the Dalcharn Interglacial Site.
[Formerly known as KALLIRHYNCIA SHARPI BEDS.] Torrens, 1967; Cripps, 1986.
[Formerly known as RHYNCONELLA ZONE.] Thompson, 1924, 1927.
[Formerly known as SHARPI BEDS.] Not Entered
[Formerly known as ROSYTH ALGAL LIMESTONE - Old code was also ROAL.] Not Entered
[Formerly known as CLEEVE HILL BEDS.] Parsons, C F, 1980.
[Formerly known as MIDDLE RAGSTONES.] Buckman, J, 1905, ccix.
[Formerly known as PHILLIPSIANA BEDS, BOURGUETIA BEDS AND WITCHELLIA GRIT.] Buckman, J, 1895; 1897.
[Formerly known as ROCK VEIN.] Not Entered
[Otherwise known as KIRKHAM ABBEY FORMATION.] In Yorkshire Province.
[Formerly known as CONCRETIONARY LIMESTONE.] Smith and Francis, 1967.
[Formerly known as HARTLEPOOL AND ROKER DOLOMITE - Old code was HPRD.] Smith and Francis, 1967.
[Formerly known as ROKER DOLOMITE FORMATION - Old code was also ROD.] Not Entered
[Formerly known as ROUSAY BEDS.] Not Entered
[Formerly known as ROUSAY FLAGS - Old code was also ROF.] Not Entered
[Otherwise known as FULLETBY BEDS.] "Formation". Swinnerton, 1935.
[Formerly known as ROACH [STONE] - Old code was also ROH.] Swinnerton, 1935; "The Ironstone Facies" Owen and Thurrell, 1968.
[Formerly known as ROSNEATH CONGLOMERATE - Old code was also RON.] Name expanded.
[Formerly known as UPPER OLD RED SANDSTONE - Old code was UORS.] Not Entered
[Formerly known as RODING SILT FORMATION - Old code was also ROSI.] Not Entered
[Formerly known as ROUGH ROCK GRIT GROUP.] Equivalent to the former Rough Rock Grit Group of Bradford (Stephens, 1953), a term considered unsuitable as there are also the Rough Rock and the Rough Rock Flags, which are terms used for individual sandstones within the formation.
[Formerly known as KIRKHILL LOWER TILL.] Connell, Hall and Romans, 1984; Connell and Hall, 1987; Hall and Connell, 1991; Hall and Jarvis, 1993.
[Formerly known as KIRKHILL WEATHERED TILL.] Connell, Edwards and Hall, 1982.
[Formerly known as ROTTENHILL MEMBER.] of the Kirkhill Formation of Sutherland, 1999.
[Formerly known as FLAMBOROUGH FORMATION.] Not previously named onshore, thus by implication, previously included in Flamborough Formation.
[Formerly known as ROWE FORMATION - Old code was also ROWE.] Lithological epithet added to name.
[Formerly known as PERMIAN UPPER MARL.] Not Entered
[Formerly known as SALIFEROUS MARL.] Not Entered
[Formerly known as UPPER MARL.] Not Entered
[Formerly known as UPPER PERMIAN MARL - Old code was UPM.] Not Entered
[Formerly known as RHAYADER PALE SLATES - Old code was also RPSL.] Not Entered
[Formerly known as ROUGH ROCK FORMATION - Old code was also RR.] Treated as a Formation on 1:50000 Sheet 59 (Lancaster) but rank now reduced to Bed level.
[Formerly known as ISLINGTON SLATES.] Bristow 1963.
[Formerly known as LIVERTON SLATES.] Bristow, 1963.
[Formerly known as RORA SLATE.] Selwood et al. 1984.
[Formerly known as RORA SLATE FORMATION - Old code was RSL.] Not Entered
[Formerly known as RICCARTON AND RAEBERRY CASTLE BEDS - Old code was also RRC.] Not Entered
[Formerly known as ROCH RHYOLITIC GROUP.] Not Entered
[Formerly known as ROCH RHYOLITIC SERIES.] Thomas, H H and Cox, A H. 1912.
[Formerly known as TREFGARN RHYOLITIC SERIES.] Thomas, H H and Cox, A H. 1924.
[Formerly known as RORRINGTON BEDS - Old code was also RRR.] Not Entered
[Formerly known as RORRINGTON GROUP.] Not Entered
[Formerly known as RORRINGTON MEMBER.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 1 (ROTHER, SUSSEX) - Old code was also RS1.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 1A (ROTHER, SUSSEX) - Old code was also RS1A.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 1B (ROTHER, SUSSEX) - Old code was also RS1B.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 2 (ROTHER, SUSSEX) - Old code was also RS2.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 3 (ROTHER, SUSSEX) - Old code was also RS3.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 3A (ROTHER, SUSSEX) - Old code was also RS3A.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 3B (ROTHER, SUSSEX) - Old code was also RS3B.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 4 (ROTHER, SUSSEX) - Old code was also RS4.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 5 (ROTHER, SUSSEX) - Old code was also RS5.] Not Entered
[Formerly known as ROSSALL HALITE FORMATION - Old code was also RSA.] Warrington et al. 1980.
[Formerly known as ROSSALL SALTS.] Wilson, 1980; Wilson and Evans, 1990.
[Formerly known as RAISED STORM BEACH DEPOSITS 2.] Not Entered
[Formerly known as RAISED STORM BEACH DEPOSITS, 1.] Not Entered
[Otherwise known as SCARGILL GRIT.] According to the generalized vertical section of 1:50K geological sheet E62 (Harrogate).
[Formerly known as RODWAY BEDS.] Whittaker, 1975.
[Formerly known as RODWAY SILTSTONES.] Edmonds and Williams, 1985.
[Formerly known as ROSS SAND FORMATION - Old code was also RSSA.] Not Entered
[Formerly known as UPPER BOULDER CLAY.] Equivalent to parts of the Upper Boulder Clay of Eastwood et al., 1931, and Trotter et al., 1937.
[Formerly known as BED A AND LOWER PART OF BED B.] Peach and Horne, 1899.
[Formerly known as BED A, EXCLUDING UPPER PART.] Howell and Geikie, 1861.
[Formerly known as BEDS AT A, A1 AND LOWER PART OF B.] Henderson and Brown, 1870.
[Formerly known as RESERVOIR BEDS.] Excluding the upper part (Mykura and Smith in Mitchell and Mykura, 1962).
[Formerly known as RESERVOIR FORMATION.] Excluding the upper part (Tipper, 1976).
[Otherwise known as SUSSEX ROTHER TERRACE DEPOSITS.] Lexicon codes RS1 to RS5
[Otherwise known as UPPER SWANSEA SIX FEET COAL.] Not Entered
[Formerly known as GREEN BEDS "SENSU STRICTO".] Smith and Warrington, 1971.
[Formerly known as GREEN KEUPER BASEMENT BEDS.] Smith, 1912.
[Formerly known as RETFORD FORMATION - Old code was also RTF.] Warrington et al., 1980
[Formerly known as RAISED MARINE/BEACH/ESTUARINE DEPOSITS OF LATE-GLACIAL AGE.] Fletcher et al. 1996.
[Formerly known as RAISED MARINE/BEACH/ESTUARINE DEPOSITS OF POSTGLACIAL AGE.] Not Entered
[Formerly known as FIRST TERRACE OF WARP.] Not Entered
[Formerly known as SECOND TERRACE OF WARP.] Not Entered
[Formerly known as ROTTEN MARL - Old code was also RTM.] Not Entered
[Otherwise known as LOWER HEATHEN COAL.] Not Entered
[Formerly known as LAXFORDIAN - Old code was LLX.] Granites, granitic rocks and pegmatitic rocks formerly referred to as "Laxfordian" are now inclued within theh Rubha Ruadh Granite.
[Formerly known as LAXFORDIAN GRANITE VEIN COMPLEX - Old code was LAX.] Name previously applied to part of the Rubha Ruadh Granite.
[Formerly known as LOCH STACK GRANITE.] Not Entered
[Formerly known as RUBHA RUADH GRANITES.] Friend and Kinny, 2001; Kinney et al., 2005.
[Formerly known as RUDHA RUADH GRANITE-GNEISS.] Sutton and Watson, 1951. Note spelling
[Formerly known as RUDGE VEIN.] Not Entered
[Formerly known as RUNCTON AND ROXHAM BEDS - Old code was also RURO.] Not Entered
[Formerly known as RUNCTON AND ROXHAM FORMATION - Old code was also RURO.] Formerly the units were (?in error) described together as a Formation. To fit current ideas the beds are viewed as separte members, and the order for the undifferentiated units is reversed to Lexicon-standard "oldest first".
[Formerly known as LAMINATED DIAMICTON.] Hart and Boulton, 1991.
[Formerly known as THIRD CROMER TILL.] Banham, 1968.
[Formerly known as BASAL HYDRAULIC LIMESTONE MEMBER.] See also RAVENTHORPE MEMBER PLUS SANTON OOLITE MEMBER (PART) - "Raventhorpe Member pkus Santon OoliteMember (part) plus Basal Hydraulic Limestone Member" (Ashton, 1975, 1980).
[Formerly known as RAVENTHORPE BEDS MEMBER.] Gaunt et al., 1992.
[Formerly known as RAVENTHORPE MEMBER PLUS SANTON OOLITE MEMBER (PART).] See also BASAL HYDRAULIC LIMESTONE MEMBER - "Raventhorpe Member pkus Santon Oolite Member (part) plus Basal Hydraulic Limestone Member" (Ashton, 1975, 1980).
[Otherwise known as LOWER LINCOLNSHIRE LIMESTONE.] Locally this composite unit is equivalent to the Lower Lincolnshire Limestone of areas to the south.
[Formerly known as RAVENSTONEDALE LIMESTONE - Old code was RSDL.] Not Entered
[Formerly known as LOWER BOULDER CLAY.] Eastwood et al., 1931; Trotter et al. 1937.
[Formerly known as RINGSTEAD WAXY CLAY MEMBER - Old code was also RWC.] Coe, 1995.
[Formerly known as RINGSTEAD WAXY CLAYS.] Arkell, 1933.
[Otherwise known as SALOP FORMATION.] Rocks formerly referred to as the Radwood Formation are now assigned to the Salop Formation, Powell et al, 1999.
[Formerly known as KEELE BEDS.] Upper part only
[Formerly known as RHIWLAS LIMESTONE - Old code was also RWL.] Not Entered
[Formerly known as RHIWLAS LIMESTONE FORMATION - Old code was also RWL.] Rank reduced from Formation to Member as unit is basal Member of Moelfryn Mudstones Formation.
[Formerly known as RAWNS BEDS.] Lane, 1965.
[Formerly known as RAWNS FORMATION - Old code was also RWN.] Not Entered
[Formerly known as RAWNS SHALES.] Evans, 1922.
[Formerly known as ROWANTREETHWAITE MEMBER - Old code was also RWT.] Lithological epithet added [D Millward] 07/03/2003.
[Formerly known as ROXHAM BEDS - Old code was also RXB.] Casey & Gallois, 1973.
[Otherwise known as YARD COAL (YRC).] Not Entered
[Formerly known as ROTHERBY CLAY - Old code was also RYCL.] Not Entered
[Formerly known as SNOWDON VOLCANIC SERIES.] Not Entered
[Formerly known as SKOMER VOLCANIC SERIES - Old code was also SVG.] Not Entered
[Formerly known as SEALYHAM VOLCANIC GROUP - Old code was also SVO.] Not Entered
[Formerly known as SEALYHAM VOLCANIC SERIES - Old code was also SVO.] Not Entered
[Otherwise known as LOCH TREIG SCHIST AND QUARTZITE FORMATION.] Lateral equivalents.
[Formerly known as SWANSEA BEDS - Old code was also SW.] Formal rank applied as part of the DigMapGB rationalization. Previous name after Woodland et al., 1957.
[Formerly known as SWANSEA FORMATION - Old code was also SW.] Further refinement of Rank and position in stratigraphical framework.
[Formerly known as SWANSEA BEDS.] Woodland et al., 1957.
[Formerly known as SWANSHAW FORMATION - Old code was also SWAS.] Not Entered
[Formerly known as SHACKLOW WOOD BASALT - Old code was also SWB.] Not Entered
[Formerly known as SHACKLOW WOOD LAVA.] Walters and Ineson, 1981; Aitkenhead et al., 1985.
[Formerly known as COAL MEASURES.] Stubblefield and Trotter, 1957.
[Formerly known as KIRKHILL ORGANIC DEPOSITS.] Hall and Connell, 1991.
[Formerly known as KIRKHILL ORGANIC LAYER.] Connell, Hall and Romans, 1984.
[Formerly known as SWINEDON MEMBER.] of the Kirkhill Formation of Sutherland, 1999.
[Formerly known as SPY WOOD GRIT - Old code was also SWG.] Not Entered
[Formerly known as STAUROCEPHALUS LIMESTONE.] see Dean, 1959.
[Formerly known as LOWER COAL MEASURES - Old code was LCM.] Stubblefield and Trotter, 1957.
[Formerly known as MIDDLE COAL MEASURES - Old code was MCM.] Subblefield and Trotter, 1957.
[Formerly known as STRONACHULLIN PHYLLITE.] Not Entered
[Formerly known as SWITHLAND GREYWACKE FORMATION.] (Worssam, B C and Old, R A, 1988).
[Formerly known as SWITHLAND SLATES.] (Watts, W W, 1947).
[Formerly known as LLYNFI BEDS.] Part of the Formation was formerly included in the Lynfi "Beds". Woodland et al., 1957.
[Formerly known as UPPER COAL MEASURES.] Part of the Formation was formerly included in the Upper Coal Measures Formation as defined by Stubblefield and Trotter, 1957.
[Otherwise known as NETHERTON THICK COAL.] Name used in parts of Yorkshire.
[Otherwise known as SECOND WATERLOO COAL.] May be the same seam in Nottinghamshire.
[Otherwise known as TOP HAIGH MOOR COAL.] Name used in parts of Yorkshire.
[Formerly known as SUSSEX VALLEYS FORMATION.] The Sussex Catchments Subgroup subsumes the fluvial deposits of the Sussex Valleys Formation of Gibbard, 1999.
[Otherwise known as SIX INCH MINE COAL.] Not Entered
[Formerly known as SIX INCH MINE.] Not Entered
[Otherwise known as CROMLOX MUDSTONE FORMATION.] Not Entered
[Formerly known as ALLT NA H' ATH SILTSTONES.] Lower part of the formation only.
[Formerly known as SANNOX SILTSTONES - Old code was also SXS.] Not Entered
[Formerly known as BED 1.] Of the Oolite Group of George, 1954.
[Formerly known as PWLL-Y-CWM OOLITE.] These dolomitic beds were included within the overlying Pwll-y-Cwm Oolite by George et al., 1976.
[Formerly known as FLANDRIAN DEPOSITS.] Not Entered
[Formerly known as HOLOCENE DEPOSITS.] Not Entered
[Formerly known as POSTGLACIAL DEPOSITS.] Not Entered
[Formerly known as SOLWAY DRIFT GROUP - Old code was also SYDR.] Not Entered
[Formerly known as OIL-SHALE GROUP - Old code was URO.] Upper part of Calciferous Sandstone Measures (McGregor, 1960).
[Formerly known as SYNALDS GROUP - Old code was also SYGP.] Not Entered
[Formerly known as SCAWBY LIMESTONE MEMBER - Old code was also SYL.] Formerly coded as a Member within the Lincolnshire Limestone Formation.
[Formerly known as UNIT F.] Subdivision of Ashton's (1975) measured section in Manton Quarry.
[Formerly known as CARBONIFEROUS LIMESTONE.] Wolverhampton Sheet 153, 1929; Telford Special Sheet, 1978
[Formerly known as UPPER LIMESTONE and LOWER LIMESTONE.] Used respectively, for units above and below Little Wenlock Basalt, Humblin, R J O and Coppack, B C, 1995.
[Formerly known as PORPHYROID OF SHARPLEY TYPE.] (Watts, W W, 1947).
[Otherwise known as LOWER SAND AND SANDSTONE.] Judd, 1867.
[Formerly known as GREENSAND AND SANDSTONE.] Dikes and Lee, 1837.
[Formerly known as SPILSBY BEDS OF SPILSBY SERIES.] Swinnerton, 1935.
[Formerly known as SPILSBY SANDSTONE.] Strahan 1886; Jukes-Browne, 1887; Casey, 1973.
[Formerly known as SYSTON SAND AND GRAVEL - Old code was also SYSG.] Not Entered
[Formerly known as SYSTON TERRACE.] (Rice, R J, 1968).
[Formerly known as STAPELEY ASH.] Includes Hope Shales
[Formerly known as STAPELEY MEMBER.] Includes Hope Shales
[Formerly known as STAPELEY VOLCANIC FORMATION - Old code was also SYV.] Not Entered
[Formerly known as STAPELEY VOLCANIC GROUP.] Includes Hope Shales
[Otherwise known as TOP THREE YARDS MINE COAL.] Not Entered
[Formerly known as TOP THREE YARDS MINE.] Not Entered
[Formerly known as THANET BEDS - Old code was also TAB.] Not Entered
[Formerly known as THANET FORMATION - Old code was also TAB.] Not Entered
[Formerly known as THANET SANDS - Old code was TS.] Including Bullhead Bed.
[Otherwise known as EQUIVALENT TO THE LOWER PART OF THE CULVER CHALK.] (Of) Mortimer, 1986.
[Formerly known as TAI-HERION FLAGS.] Fearnsides, W G, 1905.QJGS, Vol 61, 608-640.
[Otherwise known as 'GREYSTONE'.] Dykes & Lee, 1837; Judd, 1967
[Formerly known as GREYSTONE.] Dikes & Lee, 1837; Judd, 1967.
[Formerly known as TEALBY LIMESTONE - Old code was also TAL.] Of the Tealby Beds, Tealby Series, Swinnerton, 1935
[Formerly known as SCREE - Old code was SCRE.] Not Entered
[Otherwise known as NONE.] May have a lateral equivalent in the Norwegian Trench Formation.
[Formerly known as TANG SANDSTONE FORMATION.] The Member is equivalent to the lower part of the Formation of Fletcher and Key, 1992. See also Nirex 658, 1994.
[Formerly known as TAPPINS FACIES.] Not Entered
[Formerly known as TAPPINS FORMATION - Old code was also TAP.] Not Entered
[Formerly known as TARVIE PSAMMITE.] Wilson, 1975; Holdsworth, 1994.
[Formerly known as TARVIE PSAMMITIC GROUP.] Johnstone, 1969.
[Otherwise known as ARDAIR SEMIPELITE FORMATION.] Lateral equivalent.
[Otherwise known as MONADHLIATH SEMIPELITE FORMATION.] Lateral equivalent.
[Formerly known as TARSKAVAIG MOINES.] Not Entered
[Formerly known as STAC FADA FORMATION - Old code was TAF.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 1 (TAW) - Old code was also TAW1.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 10 (TAW) - Old code was also TAW10.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 11 (TAW) - Old code was also TAW11.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 2 (TAW) - Old code was also TAW2.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 3 (TAW) - Old code was also TAW3.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 4 (TAW) - Old code was also TAW4.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 5 (TAW) - Old code was also TAW5.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 6 (TAW) - Old code was also TAW6.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 7 (TAW) - Old code was also TAW7.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 8 (TAW) - Old code was also TAW8.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 9 (TAW) - Old code was also TAW9.] Not Entered
[Formerly known as EPIDOTIC GRIT FORMATION - Old code was also TBE.] Not Entered
[Otherwise known as H1.] British Coal Index.
[Formerly known as GREYSTONE.] Not Entered
[Formerly known as TEALBY BEDS.] Of the Tealby Series (Swinnerton, 1935).
[Formerly known as KINLOCH BEDS.] Not Entered
[Formerly known as TYNE BOTTOM LIMESTONE - Old code was also TBL.] E.g. Trotter and Holingworth, 1932.
[Formerly known as LOCH NA DAL BEDS.] Not Entered
[Otherwise known as UPPER BENCH COAL.] Currently it is uncertain whether these two names are synonymous or whether the Top Bench represents the top leaf of the Bench Coal and is in turn overlain by the Upper Bench Coal.
[Formerly known as BEINN NA SEAMRAIG GRITS.] Not Entered
[Otherwise known as KILNHURST COAL.] In part of the Barnsley Sheet area.
[Otherwise known as Q1.] British Coal Index.
[Otherwise known as WIDDRINGTON FIVE-QUARTER COAL.] Not Entered
[Formerly known as TORRIDON SANDSTONE.] Not Entered
[Formerly known as BAGH NA H-UAMHA SHALE.] Not granted formal status.
[Formerly known as RUDHA NA ROINNE GRIT.] Not granted formal status.
[Formerly known as GUIRDIL ARKOSE.] Black and Welsh, 1961 (not granted formal status).
[Formerly known as LOCH NAN EALA ARKOSE.] Black and Welsh, 1961 (not granted formal status).
[Formerly known as RUDHA NA ROINNE GRIT.] Black and Welsh, 1961 (not granted formal status).
[Formerly known as BASAL GRIT (MILLSTONE GRIT) - Old code was BGM.] Black & Welsh,1961. (not granted formal member status).
[Formerly known as BAGH NA H-UAMHA SHALE.] Black and Welsh,1961.
[Formerly known as TRAMBLEY COVE BEDS.] Dewey, 1909.
[Formerly known as UPPER BLUE-BLACK SLATES.] Parkinson, 1903.
[Formerly known as BARRACADOS CHERTS.] Selwood, 1958.
[Formerly known as CALCAREOUS GROUP (LOWER CULM MEASURES.] Dearman, 1959.
[Formerly known as CANNAPARK LIMESTONE.] Selwood, 1958.
[Formerly known as CHERT BODIES IN CROCADEN SANDSTONE FORMATION.] Whiteley, 1983.
[Formerly known as CHERT SERIES.] Morton, 1958.
[Formerly known as FIREBEACON CHERT.] Freshney et al, 1972.
[Formerly known as LOWER CULM MEASURES (PARS).] Ussher, 1887, 1892; Dearman, 1959.
[Formerly known as MELDON CHERT FORMATION.] Edmonds, et al., 1983.
[Formerly known as MOUNT ARARAT CHERT.] Selwood et al., 1984.
[Formerly known as NEWTON CHERT FORMATION.] Leveridge et al., 2002.
[Formerly known as NEWTON CHERT MEMBER (OF BRENDON FORMATION).] Whiteley, 1983
[Formerly known as PILLATON CHERT FORMATION.] Whiteley, 1983.
[Otherwise known as CLAVELLATA BEDS FORMATION.] Code CLAV.
[Formerly known as TRIGONIA CLAVELLATA BEDS - Old code was also TCLB.] Not Entered
[Formerly known as TEMPLE CLOUD VEIN.] Not Entered
[Formerly known as BASAL CONGLOMERATE.] Fletcher & Key, 1992; Nirex 658, 1994.
[Formerly known as DEBRIS CONE - Old code was DCON.] The name and code were changed to allow conformity with the BGS Rock Classification Scheme and map production procedures.
[Formerly known as THORNCOMBE SANDS - Old code was also TCSA.] Not Entered
[Formerly known as GUIRDIL ARKOSE.] (Black and Welsh, 1961): Not granted formal member status.
[Formerly known as TANDERAGEE CHALK MEMBER.] Not Entered
[Formerly known as BED C.] (Howell and Geikie, 1861)
[Formerly known as BELL'S HILL AND HOWDEN BURN GROUP.] (Peach et al, 1910)
[Formerly known as TORDUFF HILL BRECCIATED TRACHYTE.] (Mykura, 1960)
[Formerly known as TORDUFF HILL VOLCANIC FORMATION - Old code was also TDH.] Not Entered
[Formerly known as VOLCANIC NECK.] (Geikie, 1897)
[Otherwise known as TWECHAR DIRTY COAL.] This is the correct spelling for future use.
[Otherwise known as J1.] British Coal Index.
[Formerly known as TIDCOMBE SANDS - Old code was also TDS.] Not Entered
[Formerly known as TEMESIDE BEDS - Old code was also TEB.] Not Entered
[Formerly known as LOWER CALCAREOUS GRIT - Old code was LCG.] Part of above of some authors.
[Formerly known as LOWER CORALLIAN - Old code was LCR.] Part of above of some authors.
[Formerly known as DOLOMITIC BEDS.] (Bailey, E B and McCallien, W J, 1937).
[Formerly known as ARBROATH SANDSTONES.] Upper part of Tannadice Formation.
[Formerly known as DUNBLANE FORMATION.] Upper part of Tannadice Formation.
[Formerly known as SCONE FORMATION.] Not Entered
[Formerly known as SCONE SANDSTONE FORMATION.] Tannadice Formation name and code made redundant in favour of Scone Sandstone Formation(SCN), by Devonian Stratigraphical Framework Committee.
[Formerly known as TANNADICE FORMATION.] Not Entered
[Formerly known as TEMESIDE BEDS - Old code was TEB.] Not Entered
[Formerly known as TEMESIDE FORMATION.] Not Entered
[Formerly known as EARN GRAVEL.] Not Entered
[Formerly known as FRIARTON GRAVEL.] In the Tay valley.
[Formerly known as FAREWELL ROCK.] Archer, 1965; Hampson, 1998; Ware, 1939.
[Formerly known as UPPER SANDSTONE GROUP.] George, 1982, 2001.
[Otherwise known as MARROS GROUP.] Tenby Group was adopted and abandoned without publication. Marros Group is a full synonym for the beds formerly allocated to the Tenby Group.
[Otherwise known as ALDEBURGH MEMBER.] One of three currently unmapped members distinguished by Balson et al., 1993.
[Otherwise known as RAMSHOLT MEMBER.] One of three currently unmapped members distinguished by Balson et al., 1993.
[Otherwise known as SUDBOURNE MEMBER.] One of three currently unmapped members distinguished by Balson et al., 1993.
[Formerly known as CORALLINE CRAG - Old code was also CCG.] Not Entered
[Formerly known as CENTRAL CUMBRIA DRIFT GROUP - Old code was CCDR.] Not Entered
[Formerly known as CAESAR'S CAMP FORMATION.] Gibbard, 1999.
[Formerly known as CAESAR'S CAMP GRAVEL - Old code was also CCGR.] Dines and Edmonds, 1929; Ellison et al., 2002
[Otherwise known as ARDLEIGH MEMBER.] One of four subdivisions named by Whiteman and Rose, 1992.
[Otherwise known as LOWER ST OSYTH MEMBER.] One of four subdivisions named by Whiteman and Rose, 1992.
[Otherwise known as WALDRINGFIELD MEMBER.] One of four subdivisions named by Whiteman and Rose, 1992.
[Otherwise known as WIVENHOE MEMBER.] One of four subdivisions named by Whiteman and Rose, 1992.
[Formerly known as KESGRAVE SANDS AND GRAVEL.] Not Entered
[Formerly known as CARN CHUINNEAG - INCHBAE AUGEN GNEISS - Old code was also CCIA.] Name revised to remove lithological element and emphasise intrusive nature.
[Formerly known as UN-NAMED PERMIAN SANDSTONE OF DESERT DUNE ORIGIN.] Not Entered
[Formerly known as BASTARD LIMESTONE.] Strahan and Cantrill, 1902.
[Formerly known as MARGINAL REEF LIMESTONES.] Arthurton et al., 1988.
[Otherwise known as BASKET SHELL BED.] Not Entered
[Otherwise known as CANNEL MINE COAL.] Not Entered
[Formerly known as CANNEL MINE.] Not Entered
[Otherwise known as CEFN GWYN TUFF MEMBER.] Term preferred in the Snowdonia area.
[Formerly known as CWM CLWYD TUFF - Old code was also CCT.] Not Entered
[Otherwise known as CATTERLINE CONGLOMERATE FORMATION.] CDC is an obsolete term, replaced by CATC (Browne et al, 2001)
[Formerly known as CARDING MILL GRIT.] Greig D C et al., 1968.
[Formerly known as CARDINGMILL GRIT.] Lapworth C et al., 1910.
[Otherwise known as RAISBY FORMATION (COUNTY DURHAM).] The Raisby Formation is the local equivalent of the Cadeby Formation in County Durham
[Formerly known as CADEBY (MAGNESIAN LIMESTONE) FORMATION.] Not Entered
[Formerly known as LOWER MAGNESIAN LIMESTONE - Old code was LMLY.] YORKSHIRE AND EAST MIDLANDS
[Otherwise known as PEMBROKE LIMESTONE GROUP.] All rocks formerly included within the so-called Clifton Down Group are now included within various units belonging to the Pembroke Limestone Group.
[Otherwise known as CRAIG AN DAIMH MEMBER.] Sutherland, D G. 1999. Scotland. 99-114. In D Q Bowen (Editor) A revised correlation of Quaternary deposits in the British Isles
[Formerly known as DALCHARN GRAVEL FORMATION.] Walker, M J C and 6 others. 1992. Allt Dalcharn: two pre-late Devensian (Late Weichselian) sites in northern Scotland. Journal of Quaternary Science, Vol.7, 69-86.
[Formerly known as PART OF THE MOINE PSAMMITES.] Not Entered
[Formerly known as CLEVELAND IRONSTONE SERIES.] Chowns, T M, 1966.
[Formerly known as IRONSTONE SERIES.] Phillips, J, 1829.
[Formerly known as KETTLENESS BEDS.] Young, B and Bird, J, 1822, for lower part only.
[Otherwise known as DRYBROOK LIMESTONE FORMATION.] Term formerly used west of the River Severn (Forest of Dean area) but no longer recommended [21/12/2004].
[Formerly known as CHEDDAR LIMESTONE FORMATION - Old code was CDRL.] The rocks formerly referred to as the Cheddar Limestone Formation (cf current Lexicon entry for Cheddar Limestone Member) are now included in the Clifton Down Limestone.
[Formerly known as SEMINULA OOLITE.] This is an obsolete term, commonly used for the oolites in the middle of the Formation in the Bristol area (cf Reynolds, 1921)
[Formerly known as CADGERS LOAN ROCK.] Not Entered
[Otherwise known as WHITEHEAD LIMESTONE.] Term formerly used west of the River Severn (Chepstow/Forest of Dean) but now replaced by Clifton Down Mudstone [21/12/2004].
[Formerly known as CANINIA SHALES AND DOLOMITE.] Vaughan, 1906
[Formerly known as LOWER CLIFTON DOWN MUDSTONE - Old code was LCDM.] Rocks subsumed within the Clifton Down Mudstone Formation. [Ramsbottom. 1973]
[Formerly known as MIDDLE LIMESTONE SHALES.] Lloyd Morgan, 1885
[Formerly known as UPPER CLIFTON DOWN MUDSTONE - Old code was UCDM.] Rocks subsumed within the Clifton Down Mudstone Formation. [Ramsbottom, 1973]
[Formerly known as CALDER MUDSTONE FORMATION.] Fletcher & Key, 1992; Nirex 658, 1994.
[Otherwise known as NOD GLAS FORMATION.] Not Entered
[Formerly known as ST MELLION FORMATION.] Note that this term has now been revitalized and Crocadon Formation is now considered obsolete: October 2005 (See Revisions entry).
[Otherwise known as CRIFFEL-DALBEATTIE GRANODIORITE COMPLEX..] Phillips, 1956.
[Formerly known as CRIFFEL GRANITE, CRIFFEL AND DALBEATTIE (GRANITE) MASS.] Horne, et al. 1896.
[Formerly known as PARTS OF CREAG LEACACH QUARTZITE.] (Upton, 1986).
[Formerly known as CHEDDAR LIMESTONE FORMATION - Old code was also CDRL.] Not Entered
[Formerly known as CHEDDAR OOLITE FORMATION - Old code was also CDRO.] Not Entered
[Formerly known as COLDWELL BEDS.] Aveline and Hughes, 1872.
[Formerly known as COLDWELL FORMATION.] Moseley, 1984.
[Formerly known as MIDDLE COLDWELL BEDS.] Marr, 1892
[Formerly known as ALLUVIUM.] On existing 50k geological maps of Eskdale. Trotter, et al (1937), Akhurst, et al (1997).
[Formerly known as CENNEN BEDS - Old code was also CEB.] Not Entered
[Otherwise known as BLACKHALL COLLIERY FORMATION.] Of Thonmas, 1999.
[Formerly known as DURHAM FISSURE FILLINGS.] Not Entered
[Formerly known as DALMANELLA LUNATA BEDS.] Not Entered
[Formerly known as LLAN-WEN HILL BEDS.] Not Entered
[Formerly known as WERN QUARRY BEDS.] Not Entered
[Formerly known as CEFN GOCH GRIT - Old code was also CEG.] Andrew, 1910.
[Formerly known as MENEVIAN GRIT.] Of Charles Lapworth.
[Formerly known as CENTRAL HIGHLAND DIVISION.] Not Entered
[Formerly known as CENTRAL HIGHLAND MIGMATITES - Old code was also CEHI.] Not Entered
[Formerly known as CARN-Y-PARC FORMATION.] British Geological Survey, 1993.
[Formerly known as EIDDA FORMATION - Old code was EI.] Rushton, A W A and Howells, M F, 1998.
[Formerly known as BRYN BEDWEN FORMATION (OBSOLETE NAME AND CODE: USE CER) - Old code was BB.] Not Entered
[Formerly known as TARANNON PALE SHALES.] Not Entered
[Formerly known as ALLUVIAL FAN DEPOSITS.] Trotter, et al (1937)
[Formerly known as ALLUVIUM AND RIVER TERRACE DEPOSITS.] Trotter, et al (1937)
[Otherwise known as CHILLESFORD MEMBER.] Not Entered
[Formerly known as CHILLESFORD BEDS - Old code was also CFB.] Not Entered
[Formerly known as CHILLESFORD CLAY - Old code was also CFC.] Not Entered
[Formerly known as CARROCK DIABASE.] Not Entered
[Formerly known as CARROCK GABBRO-MICROGRANITE DIVISION - Old code was also CFCOC.] Interim name prior to full submission
[Formerly known as CARROCK GRANOPHYRE.] Not Entered
[Formerly known as CARROCK SERIES.] Not Entered
[Formerly known as HARESTONES FELSITE.] Not Entered
[Formerly known as HARESTONES RHYOLITE [IN CARROCK FELL COMPLEX] - Old code was also CFCOH.] Interim code/name prior to full submission
[Formerly known as IRON CRAG MICROGRANITE [IN CARROCK FELL COMPLEX] - Old code was also CFCOI.] Interim code prior to full submission
[Formerly known as CARROCK FELL COMPLEX [MOSEDALE DIVISION] - Old code was also CFCOM.] Interim name prior to full submission
[Formerly known as GREAT OOLITE.] Approximately equivalent to term used by William Smith, c.1800 in Warner, (1811), by Lonsdale (1832), by Woodward (1894) and by Green and Donovan (1969), who coined the subdivisions Combe Down Oolite, Twinhoe Beds and Bath Oolite.
[Formerly known as GREAT OOLITE FORMATION.] Cox and Sumbler (2002, pp.125-130, fig.3.4), including their Combe Down Oolite, Twinhoe and Bath Oolite and Upper Rags members.
[Formerly known as GREAT OOLITE LIMESTONE.] Equivalent to term used by Welch (1957), including his lower un-named "oolitic freestone", Twinhoe Ironshot Limestone, Bath Oolite and Ancliff Oolite, including the Coral Bed.
[Formerly known as CEFN HIR ASHES..] Cox, A H and Wells, A K. 1921.
[Otherwise known as GARW COAL [SOUTH WALES COALFIELD].] Not Entered
[Otherwise known as TRAETH BYCHAN LIMESTONE.] Of Anglesey: Lateral equivalent of Cefn Mawr Limestone Formation.
[Otherwise known as TREFOR LIMESTONE.] Of Llangollen: Lateral equivalent of Cefn Mawr Limestone Formation.
[Formerly known as BISHOP'S QUARRY BEDS.] Not Entered
[Formerly known as BISHOP'S QUARRY LIMESTONE FORMATION.] Not Entered
[Formerly known as D2 LIMESTONES.] Not Entered
[Formerly known as TRAETH BYCHAN LIMESTONE FORMATION - Old code was TRL.] Obsolete term [CNW; 24/10/2003].
[Formerly known as TREFOR LIMESTONE FORMATION - Old code was TLF.] Term made obsolete [CNW: 24/10/2003].
[Formerly known as UPPER GREY LIMESTONE - Old code was UGL.] Not Entered
[Otherwise known as BROWNSTONES (in part).] Not Entered
[Formerly known as CLEE FORMATION - Old code was also CFO.] Not Entered
[Formerly known as CLEE GROUP.] Not Entered
[Otherwise known as GELLIDEG COAL [SOUTH WALES COALFIELD].] Not Entered
[Formerly known as CEFN-Y-FEDW SANDSTONE - Old code was also CFS.] Not Entered
[Formerly known as CEFN-Y-FEDW SANDSTONE GROUP - Old code was also CFS.]
[Formerly known as CEFN-Y-FEDW SERIES.] Not Entered
[Formerly known as DEE BRIDGE SANDSTONE - Old code was DBS.] Not Entered
[Formerly known as HALKYN FORMATION - Old code was HAF.] Part of the former Halkyn Formation is placed within the Cefn-y-Fedw Sandstone Formation in appropriate areas.
[Formerly known as MILLSTONE GRIT SERIES.] Not Entered
[Formerly known as CRAYFORD BRICKEARTH.] Not Entered
[Formerly known as CRAYFORD BRICKEARTH FORMATION.] Not Entered
[Formerly known as CRAYFORD SILT FORMATION - Old code was also CFSI.] Not Entered
[Otherwise known as CORSE OF BALLOCH MEMBER.] Of the Camp Fauld Formation of Bowen, 1999.
[Formerly known as CNOC FYRISH CONGLOMERATE - Old code was also CFY.] Not Entered
[Formerly known as CLYPEUS GRIT - Old code was also CG.] Hull, E, 1857, p.46.
[Formerly known as CLYPEUS GRIT AND WHITE OOLITE.] Witchell, E, 1880; Woodward, H B, 1894.
[Formerly known as PHOLADOMYA GRIT.] Lycett, J, 1857.
[Formerly known as RUBBLY BEDS AND UPPER CORAL BED.] Includes Rubbly Beds and Upper Coral Bed of some accounts. Richardson, L, 1907; Sumbler, M G, et al, 2000.
[Formerly known as CREGGAN CHALK MEMBER.] Not Entered
[Formerly known as CARGHIDOWN BEDS.] Not Entered
[Formerly known as CENTRAL GRAMPIAN DRIFT GROUP - Old code was also CGDR.] Epithet "Drift" revised to "Glacigenic" in line with BGS policy (November 2003).
[Formerly known as CENTRAL GRAMPIAN GLACIGENIC GROUP - Old code was also CGDR.] Revision of Rank to a Subgroup within the Caledonia Glaciegenic Group.
[Otherwise known as GRANTON SANDSTONE.] Local equivalent.
[Formerly known as CAYTON GILL BEDS.] Fox-Strangways, 1873, 1908; Tute, 1886; Hudson, 1934, 1937, 1938.
[Otherwise known as CROW LIMESTONE.] Not Entered
[Otherwise known as OAKWOOD LIMESTONE.] Not Entered
[Otherwise known as WOODBANK GROUP.] The Woodbank Group appears to cover the rocks formerly defined here as the Clee Group. Note that the Clee Formation exists as part of the Woodbank Group, but its limits are not the same as those of the former Clee Group.
[Formerly known as CLEE GROUP (SEE CLEE FORMATION) - Old code was also CGP.] Not Entered
[Otherwise known as SKOMER VOLCANIC GROUP.] By inference, rocks formerly referred to the Conglomeratic "Series" are now included within the Skomer Volcanic Group (Cocks et al, 1992).
[Otherwise known as CWM CLWYD TUFF FORMATION.] Term still used in Bala and Oswestry areas. BGS 1993.
[Formerly known as CEFN GWYN TUFF MEMBER - Old code was also CGTU.] Not Entered
[Formerly known as CWM CLWYD TUFF FORMATION - Old code was CCT.] Not Entered
[Otherwise known as ARAN FAWDDWY FORMATION.] Partially equivalent (cf Rushton and Howells, 1998).
[Otherwise known as CRAIG Y FFYNNON FORMATION.] of the Harlech district, might also be equivalent.
[Otherwise known as LLYN CONWY FORMATION.] Zalasiewicz, J A. 1992.
[Otherwise known as PISTYLLION FORMATION.] of the Harlech district might also be equivalent.
[Formerly known as CRAIG Y LAM FORMATION.] Ridgeway, J. 1975.
[Formerly known as CRAIG Y LAM GROUP.] Cox, A H. 1925.
[Formerly known as PERFEDDNANT ASHES.] Jehu, R M. 1926.
[Formerly known as UPPER ACID VOLCANIC GROUP.] Cox, A H and Wells, A K. 1927.
[Formerly known as MIDDLE SANDS AND GRAVELS.] Part of this unit: Eastwood et al., 1931.
[Formerly known as CRAIG-Y-GLYN GROUP.] Wedd, C B et al. 1929.
[Otherwise known as MERLIN ISLAND COAL.] Not Entered
[Otherwise known as MERLIN CRAGS COAL.] Not Entered
[Otherwise known as JOCK'S POOL LIMESTONE.] Not Entered
[Otherwise known as USUALLY CALLED 'ANCIENT VOLCANIC ROCKS'..] No informal name as such.
[Formerly known as CHAPELKNOWE TILL FORMATION - Old code was also CHAK.] Not Entered
[Formerly known as LOWER BOULDER CLAY.] sensu Trotter and Hollingworth, 1932.
[Formerly known as BLUE MARL.] Smith, W, 1817.
[Formerly known as BRANT MUDSTONE FORMATION - Old code was BMN.] Brandon, A, Sumbler, M G and Ivimey-Cook, H C, 1990.
[Formerly known as COLEBY MUDSTONE FORMATION (PART).] Gaunt, G D, et al, 1982.
[Formerly known as LOWER LIAS.] Not Entered
[Formerly known as LOWER LIAS CLAY FORMATION.] Not Entered
[Formerly known as LOWER LIAS CLAY(S).] Not Entered
[Formerly known as MIDDLE LIAS MUDSTONES AND SILTSTONES (EAST MIDLANDS SHELF NORTH).] Swinnerton, H H and Kent, P E, 1949; 1976.
[Formerly known as OBTUSUM-OXYNOTUM CLAYS (UPPER PART).] plus SANDROCK and UPPER CLAYS of Swinnerton, H H and Kent, P E, 1949; 1976.
[Formerly known as SHARP'S HILL FORMATION.] West of 'Moreton Axis'. (Sellwood and McKerrow, 1974).
[Formerly known as STONESFIELD SLATE BEDS - Old code was SSL.] West of 'Moreton Axis'. (Arkell, 1933).
[Formerly known as DUNNOTTAR CASTLE FORMATION - Old code was DRCC.] Carroll 1995; redefined Browne et al., 2001
[Otherwise known as GLENVALE SANDSTONE FORMATION.] CHB is obsolete, replaced by GEF (Browne et al, 2001)
[Formerly known as CHEVIOT LAVAS.] Not Entered
[Formerly known as CHEVIOT VOLCANIC GROUP - Old code was also CHEV.] House et al., 1977.
[Formerly known as CHEVIOT VOLCANIC SERIES.] Mykura, 1991.
[Formerly known as CHELFORD FORMATION.] Maddy in Bowen, 1999.
[Formerly known as CONGLETON SAND.] Evans et al. 1968.
[Formerly known as RIVELIN GRIT.] Not Entered
[Formerly known as SECOND GRIT.] Not Entered
[Formerly known as BLACKHEATH BEDS.] Previously regarded as part of the "Blackheath Beds" [now Harwich Formation] in some areas.
[Formerly known as CHELSFIELD GRAVEL - Old code was also CHGR.] Not Entered
[Formerly known as CLAY WITH FLINTS.] Previously regarded as part of Clay with Flints in some areas.
[Formerly known as DISTURBED BLACKHEATH BEDS.] Not Entered
[Formerly known as CHILMARK OOLITE MEMBER.] (Wimbledon and Cope, 1978; Wimbledon, 1980)
[Formerly known as UPPER BUILDING STONES.] (Woodward, 1895)
[Otherwise known as HAW BANK LIMESTONE.] Name coined by Hudson and Mitchell (1937) on the Skipton Anticline; not used by the BGS.
[Formerly known as CHATBURN LIMESTONE GROUP - Old code was also CHL.] Not Entered
[Formerly known as HAW BANK LIMESTONE - Old code was HBNK.] Name coined by Hudson and Mitchell (1937) on the Skipton Anticline; possibly a valid synonym but not used by the BGS.
[Formerly known as CHENEY LONGVILLE FLAGS - Old code was also CHLF.] Not Entered
[Formerly known as CAMPHILL GELIFLUCTATE BED.] Merritt, Connell and Bridgland. 2000.
[Formerly known as CORSE MEMBER.] of the Kirkfill Formation of Sutherland, 1999).
[Formerly known as KIRKHILL GELIFLUCTATE COMPLEX 2.] Hall and Connell, 1991; Hall and Jarvis. 1993.
[Formerly known as KIRKHILL GELIFLUCTATE COMPLEX 3.] Connell and Hall. 1987.
[Formerly known as KIRKHILL HEAD 2.] Connell, Hall and Romans, 1984.
[Otherwise known as CRAVENOCERAS COWLINGENSE MARINE BAND.] Not Entered
[Formerly known as CARHAM LIMESTONE - Old code was also CHML.] Robertson et al., 1949.
[Formerly known as CARHAM STONE.] Greig, 1971.
[Formerly known as CHINA MINE ROCK - Old code was also CHMR.] Not Entered
[Formerly known as CHAMA SAND - Old code was also CHMS.] Not Entered
[Formerly known as CHAMA SAND MEMBER - Old code was also CHMS.] Possibly temporary revision of the Rank to that of a Formation within the Barton Group to align the usage with that on BGS DiGMap.
[Otherwise known as CHINA MINE COAL.] Not Entered
[Formerly known as CHINA MINE.] Not Entered
[Otherwise known as NONE.] Formerly part of the Michelinia grandis Beds.
[Otherwise known as ARDWICK MARLS.] Now also obsolete. See Powell et al., 1999.
[Otherwise known as ETRURIA FORMATION.] See Powell et al., 1999.
[Formerly known as AMPTHILL CLAY - Old code was also AMC.] Not Entered
[Formerly known as BLUNTISHAM CLAY.] Seeley, 1861a.
[Formerly known as CORALLIAN.] (pars)
[Formerly known as GAMLINGAY CLAY.] Seeley, 1867.
[Formerly known as TETWORTH CLAY.] Seeley, 1861b
[Formerly known as ANCHOLME CLAY GROUP - Old code was also AMG.] Gaunt, G D, et al, 1992.
[Formerly known as ALDERWOOD MUDSTONE MEMBER - Old code was also AMM.] Not Entered
[Otherwise known as ALBRIGHTON MARINE BAND.] Local name in the Cumberland (Coalfield) area, possibly still in use to some extent.
[Otherwise known as GUBEON MARINE BAND.] Local name, Northumberland and Durham (coalfield) areas, possibly still in use to some extent.
[Otherwise known as KNYPERSLEY MARINE BAND.] Local name in the North Staffordshire (coalfield) area, possibly still in use locally.
[Otherwise known as M5 NARINE BAND.] Local name in part(s) of the South Wales Coalfield, possibly still in use locally.
[Otherwise known as NORTON MARINE BAND.] Local name in the Derby/Notts/Yorkshire coalfield areas, possibly still in use to some extent.
[Otherwise known as TONGE'S MARINE BAND.] Local name in part(s) of the Lancashire Coalfield, possibly still in use to some extent.
[Formerly known as ALBRIGHTON MARINE BAND - Old code was ABNMB.] Local name in the Cumberland (Coalfield) area, possibly still in use to some extent.
[Formerly known as GUBEON MARINE BAND - Old code was GUMB.] Local name, Northumberland and Durham (coalfield) areas, possibly still in use to some extent.
[Formerly known as KNYPERSLEY MARINE BAND - Old code was KNYMB.] Local name in the North Staffordshire (coalfield) area, possibly still in use locally.
[Formerly known as M5 MARINE BAND - Old code was M5MB.] Local name in part(s) of the South Wales Coalfield, possibly still in use locally.
[Formerly known as NORTON MARINE BAND - Old code was NOMB.] Local name in the Derby/Notts/Yorkshire coalfield areas, possibly still in use to some extent.
[Formerly known as TONGE'S MARINE BAND - Old code was TONMB.] Local name in part(s) of the Lancashire Coalfield, possibly still in use to some extent.
[Formerly known as ARDMILLAN SERIES.] Not Entered
[Formerly known as AUCHMEDDON GRAVEL.] Hall et al., 1995.
[Formerly known as AUCHMEDDON GRAVEL FORMATION.] Merritt, Cornell and Bridgland, 2000.
[Formerly known as AUCHMEDDON MEMBER.] of the KIRKHILL FORMATION of Sutherland, 1999.
[Formerly known as GLACIAL MELTWATER DEPOSITS.] On sheet 97 (Fraserburgh, Solid and Drift, 1987).
[Formerly known as ABERDEEN GROUND BEDS.] Not Entered
[Formerly known as ANNANDALE SANDSTONE.] (Nairn, 1956).
[Formerly known as ANNANDALE SANDSTONE BED - Old code was also ANSA.] The plural "Beds" more accurately describes the unit.
[Formerly known as ANNANDALE SANDSTONE MEMBER - Old code was also ANSA.] Not Entered
[Formerly known as ARGILLACEOUS SERIES.] Morton, 1958.
[Formerly known as ASHTON SHALE MEMBER - Old code was also ANSH.] Lithological epithet revised.
[Formerly known as ASHTON SHALE MEMBER (OF CRACKINGTON FORMATION).] Edwards and Scrivener, 1999.
[Formerly known as BATH STONE AND LOWER RAGS.] Arkell and Donovan, 1952, p 235, pl. 16
[Formerly known as ODHAR PEAT FORMATION.] Walker, M J C and 6 others. 1992.
[Formerly known as APPLETHWAITE FORMATION - Old code was also AP.] Name in use at time of original Lexicon definition.
[Formerly known as APPLETHWAITE GROUP.] Not Entered
[Formerly known as APPLETHWAITE SERIES.] Not Entered
[Formerly known as APPLETHWAUTE BEDS.] Applethwaite Beds (Marr, 1892), part of: Applewaite Series.
[Otherwise known as APPLETHWAITE GROUP.] Not Entered
[Otherwise known as APPLETHWAITE SERIES.]
[Otherwise known as ? LATERAL EQUIVALENT OF GLENFINNAN GROUP.] Not Entered
[Otherwise known as LOWER DALRADIAN.] Harris, A L and Pitcher, W S, 1975.
[Formerly known as LOWER DALRADIAN GROUP - Old code was DA.] Not Entered
[Otherwise known as ECTON LIMESTONE FORMATION.] The Apestor Limestones are now included within the Exton Limestone Formation.
[Otherwise known as UPPER WATERHOUSES LIMESTONE.] Local correlative, also now considered Obsolete.
[Otherwise known as PART OF ARUN MEMBER OF SUSSEX VALLEY FORMATION.] Bowen, 1999; Aldiss, 2002.
[Formerly known as RIVER TERRACE DEPOSITS, 1 (ARUN) - Old code was also AR1.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 2 (ARUN) - Old code was also AR2.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 2A (ARUN) - Old code was also AR2A.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 2B (ARUN) - Old code was also AR2B.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 3 (ARUN) - Old code was also AR3.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 4 (ARUN) - Old code was also AR4.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 5 (ARUN) - Old code was also AR5.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 6 (ARUN) - Old code was also AR6.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 7 (ARUN) - Old code was also AR7.] Not Entered
[Formerly known as ANSTRUTHER BEDS.] Not Entered
[Formerly known as ARDWELL BEDS, MIDDLE - Old code was ARBM.] Not Entered
[Formerly known as ARDWELL FLAGS.] Not Entered
[Formerly known as ARDWELL FORMATION - Old code was also ARD.] Name revised by Ingham (in Fortey et al, 2000).
[Formerly known as ARDWELL GROUP.] Not Entered
[Formerly known as MIDDLE ARDWELL BEDS - Old code was ARBM.] Not Entered
[Formerly known as CENTRE 1 (ARDNAMURCHAN COMPLEX) - Old code was also ARD1.] Not Entered
[Formerly known as CENTRE 2 (ARDNAMURCHAN COMPLEX) - Old code was also ARD2.] Not Entered
[Formerly known as CENTRE 3 (ARDNAMURCHAN COMPLEX) - Old code was also ARD3.] Not Entered
[Formerly known as ERIBOLL GROUP.] Park et al. 2002
[Formerly known as ARDLEY BEDS AND BLADON BEDS.] Barker, M J, 1976
[Formerly known as UPPER PART: ARDLEY BEDS.] Arkell, W J, 1931.
[Formerly known as BEN LEDI GRITS.] Included previously in informally termed Ben Ledi Grits
[Formerly known as AUSTWICK FLAGS & GRITS (KING AND WILCOCKSON, 1934).] Not Entered
[Formerly known as AUSTWICK FLAGS AND GRITS.] The Arcow Formation was formerly grouped within the Austwick Flags and Grits of King and Wilcockson, 1934.
[Formerly known as ARDWICK FORMATION - Old code was also ARG.] Term used instead of Ardwick Group by Ramsbottom et al,, 1978.
[Otherwise known as LISTERI MARINE BAND.] Not Entered
[Formerly known as MIDDLE DALRADIAN.] (Harris, A L and Pitcher, W S, 1975).
[Formerly known as MIDDLE DALRADIAN GROUP - Old code was DB.] Not Entered
[Formerly known as BUTE LIMESTONE.] Not Entered
[Otherwise known as ARLEY AND EXHALL SANDSTONES.] See Powell et al, 1999.
[Formerly known as ARBIGLAND BEDS.] Deegan, 1970
[Formerly known as ARBIGLAND GROUP (USE ARLM) - Old code was ARGP.] Craig, 1956
[Formerly known as ARBIGLAND LIMESTONE FORMATION - Old code was also ARLM.] Not Entered
[Formerly known as ARBIGLAND MEMBER - Old code was also ARLM.] Not Entered
[Otherwise known as ARLEY MINE COAL.] Not Entered
[Formerly known as ARLEY MINE - Old code was also ARMC.] Not Entered
[Formerly known as ARVONIAN.] Not Entered
[Formerly known as ARVONIAN FORMATION.] Not Entered
[Formerly known as DURN HILL QUARTZITE.] Included in Durn Hill Quartzite by Read, H H, 1923 and Stephenson, D, et al, 1993.
[Formerly known as ARLEY CONGLOMERATE - Old code was ARLC.] See Powell et al, 1999.
[Formerly known as ARLEY SANDSTONE - Old code was also ARSA.] See Powell et al, 1999.
[Formerly known as SOFT BRICK-RED SANDSTONES.] British Geological Survey Memoir, Sheet 85 (Scotland). The Geology of Strathspey, 1902, p.59.
[Otherwise known as ARUN MEMBER.] Bowen, 1999
[Formerly known as RIVER TERRACE DEPOSITS 1-7 (ARUN).] Lexicon codes AR1 to AR7
[Formerly known as GUNNSCROFT LIMESTONE BED.] Not Entered
[Formerly known as MARGINAL LIMESTONE AT ARYLEIVE.] Donovan, 1975.
[Otherwise known as BUTCOMBE SANDSTONE.] Green and Welch, 1965; Kellaway and Welch, 1993. Note that the term Butcombe Sandstone is now considered Obsolete.
[Formerly known as ARDEN SANDSTONE GROUP.] Matley, 1912.
[Formerly known as ARDEN SANDSTONE HORIZON.] Wills, 1970.
[Formerly known as ARDEN SANDSTONE MEMBER - Old code was also AS.] Warrington, et al, 1980.
[Formerly known as BUTCOMBE SANDSTONE - Old code was BUS.] Green and Welch, 1965; Kellaway and Welch, 1993.
[Formerly known as DANE HILLS SANDSTONE GROUP.] Horwood, 1913.
[Formerly known as DANE HILLS SANDSTONE MEMBER - Old code was DHSM.] Warrington et al., 1980.
[Formerly known as HOLLYGATE SANDSTONE MEMBER - Old code was HLY.] Charsley et al., 1990; Howard et al., in press.
[Formerly known as HOLLYGATE SKERRY.] Elliott, 1961.
[Formerly known as KEUPER SANDSTONE - Old code was KS.] Murchison and Strickland, 1840.
[Formerly known as NORTH CURRY SANDSTONE MEMBER - Old code was NCMB.] Warrington et al., 1980.
[Formerly known as UPPER KEUPER SANDSTONES - Old code was UKSB.] Phillips, 1948; Symonds, 1855; Brodie, 1870; Plant, 1856; Ussher, 1908; Wills and Campbell Smith, 1913.
[Formerly known as WESTON MOUTH SANDSTONE MEMBER - Old code was WMSF.] Warrington et al., 1980. The formation corresponds approximately to the lowermost 20 m of the Dunscombe Mudstone Formation of Gallois, 2001.
[Formerly known as ALDEBY SANDS AND GRAVELS - Old code was also ASAG.] Moorlock et al, 2000.
[Formerly known as ASSEL CONGLOMERATE - Old code was also ASC.] Not Entered
[Formerly known as ASHDOWN BEDS - Old code was ASHB.] Not Entered
[Formerly known as ASHDOWN SAND.] Not Entered
[Formerly known as THIRD GRIT.] Not Entered
[Formerly known as ACTON SCOTT GROUP - Old code was also ASGP.] Not Entered
[Otherwise known as ASHCLOUGH MINE COAL.] Not Entered
[Formerly known as ASHCLOUGH MINE.] Not Entered
[Otherwise known as DE2.] British Coal Index.
[Otherwise known as UPPER HIGH MAIN COAL.] Not Entered
[Otherwise known as ROUGH LIMESTONE.] Rowley, 1969.
[Formerly known as ASKHAM LIMESTONE - Old code was also ASKL.] Not Entered
[Formerly known as HARTLEY HILL FORMATION.] Parsons, C F, 1980.
[Formerly known as MIDDLE INFERIOR OOLITE.] Buckman, J, 1901, 1905.
[Otherwise known as AN SOCACH/CAIRNWELL QUARTZITE.] (SH65W, local equivalents of Appin Quartzite)
[Otherwise known as BEINN A'GHLO QUARTZITE.] (SH55E)
[Formerly known as MIDDLE SERIES.] Peach et al., 1907
[Formerly known as PASSAGE OR MIDDLE SERIES.] Phemister, 1948
[Formerly known as ASTA SPILITIC GROUP - Old code was DBAS.] Not Entered
[Formerly known as ASTON BEDS - Old code was also AST.] Not Entered
[Formerly known as ARTHUR'S SEAT VOLCANIC ROCKS.] Not Entered
[Formerly known as ALLESLEY CONGLOMERATE - Old code was AYC.] Not Entered
[Formerly known as COVENTRY SANDSTONE.] The upper part of the former unit is now within the Allesley Member (Powell et al,, 1999).
[Formerly known as ARBUTHNOTT GROUP.] (New name combining the previous Arbuthnott Group and Garvock Group. Both named by Campbell, R, 1913 and redefined by Armstrong, M and Paterson, I B, 1970).
[Formerly known as GARVOCK GROUP.] (New name combining the previous Arbuthnott Group and Garvock Group. Both named by Campbell, R, 1913 and redefined by Armstrong, M and Paterson, I B, 1970).
[Formerly known as DALCHARN LOWER TILL FORMATION.] of the Dalcharn Interglacial site. This plus the Moy Lower Till Member plus the Moy Paraglacial Complex Member are included in the Athais Till Formation.
[Formerly known as MOY LOWER TILL MEMBER.] This plus the Dalcharn Lower Till Member plus the Moy Paraglacial Complex Member are included in the Athais Till Formation.
[Formerly known as MOY PARAGLACIAL COMPLEX MEMBER.] of the Allt Odhar Interstadial site. This plus the Moy Lower Till Member plus the Dalcharn Lower Till Member are included in the Athais Till Formation.
[Formerly known as AUCHTITENCH FORMATION - Old code was also AUC.] Not Entered
[Formerly known as AUCHENCROW BURN FORMATION - Old code was also AUCR.] Not Entered
[Formerly known as LOWER OLD RED SANDSTONE - Old code was LORS.] Greig, D C. 1988.
[Formerly known as AUSTWICK FLAGS AND GRITS.] King and Wilcockson, 1934.
[Formerly known as GRAMPIAN GROUP (UNDIVIDED).] Not Entered
[Formerly known as MOINE.] Not Entered
[Formerly known as AUCHENCAR LAVA.] Not Entered
[Formerly known as SRON BHEAG SCHIST.] The latter entry is now flagged as Obsolete.
[Otherwise known as AULDSHIELDS BLACKBAND.] Not Entered
[Formerly known as AUCHENCAR BURN SANDSTONES - Old code was also AUSA.] Friend et al., 1963.
[Formerly known as AUCHENCAR LAVA - Old code was AULA.] Friend et al., 1963.
[Formerly known as CREAG MHOR CONGLOMERATES - Old code was CMC.] Friend et al., 1963.
[Formerly known as TORR BREAC SANDSTONES.] Friend et al., 1963.
[Otherwise known as LADY HA' COAL.] Not Entered
[Formerly known as RHYOLITIC ASH.] Not Entered
[Otherwise known as FIRST KINGSHAW LIMESTONE.] Not Entered
[Otherwise known as SECOND HOSIE LIMESTONE.] Not Entered
[Formerly known as CEFN BRYN SHALES.] George, 1939.
[Formerly known as LOWER LIMESTONE SHALE.] Buckland and Conybeare, 1824.
[Formerly known as LOWER LIMESTONE SHALE GROUP - Old code was LSH.] Kellaway and Welch, 1955. Term now considered obsolete.
[Formerly known as MAESBURY MUDSTONE FORMATION - Old code was MBYM.] Barton et al., 2002. Obsolete/redundant, subsumed within the Avon Group.
[Formerly known as AVON VALLEY FORMATION - Old code was also AVON.] Bowen, 1999. Extra geographical epithet added to avoid confusion.
[Formerly known as ASHPRINGTON VOLCANIC SERIES - Old code was also AVS.] Not Entered
[Formerly known as ASHOW GROUP.] Equivalent to the Ashow Group of Shotton (1929); the name is derived from the village of Ashow, located southeast of Kenilworth. The lower part of the formation was termed the 'Whitmoor Marls' and 'Whitmoor Sandstone' (Richardson and Fleet, 1926).
[Formerly known as LOCH AWE SERIES.] Not Entered
[Formerly known as ARDMILLAN GROUP - Old code was AMN.] Formally known (informally) as the lower part of the Ardmillan Group.
[Otherwise known as AUCHENWINSEY MEMBER.] Of the Sourlie Formation of Bowen, 1999.
[Formerly known as UNIT F.] Of Jardine et al., 1988.
[Formerly known as AYLESBEARE GROUP - Old code was also AYB.] Smith, and others, 1974.
[Formerly known as AYLESBEARE MUDSTONE FORMATION.] Edwards, 1984.
[Formerly known as EXMOUTH BEDS.] Laming, 1966.
[Formerly known as LOWER MARLS.] Ussher, 1902.
[Otherwise known as ALLESLEY MEMBER.] The former Allesley Conglomerate is now subsumed within the Allesley Member [ALY] (Powell et al, 1999).
[Formerly known as ALLESLEY CONGLOMERATE - Old code was also AYC.] Though referred to as the Allesley Conglomerate by the BGS, the original term (Allesley Sandstones and Conglomerates; Eastwood et al, 1923) is now revived (Powell et al, 1999).
[Formerly known as ASTBURY-LIMESTONE-SHALES - Old code was also AYLS.] Evans et al., 1968.
[Formerly known as MELAU TUFF FORMATION - Old code was also MU.] Not Entered
[Otherwise known as HURLET LIMESTONE.] Probable lateral equivalent.
[Formerly known as CENTRAL GROUP.] Not Entered
[Formerly known as PLATEAU GROUP.] (Including Pale Suite of Ben More)
[Formerly known as MURLOUGH BAY COAL GROUP - Old code was MBC.] Wilson, HE and Robbie, J A. 1966. Geological memoir of the Country around Ballycastle. Belfast:HMSO.
[Formerly known as MURLOUGH BAY FORMATION - Old code was MBC.] Should not be confused with the extant term Murlough Bay Formation [Neoproterozoic]. The term was applied accidentally as a revised name for Murlough Coal Group. See "Alternative Name" information under the Lexicon entry for MBC.
[Formerly known as MULTEADH SANDSTONE FORMATION.] Fletcher & Key, 1992; Nirex 658, 1994.
[Formerly known as Y GLOG VOLCANIC SERIES.] Shackleton, 1959, p.230.
[Formerly known as MALVERN COMPLEX.] Not Entered
[Formerly known as MALVERNIAN - Old code was MALV.] Not Entered
[Formerly known as MALVERNIAN COMPLEX.] Worssam, and others, 1989.
[Formerly known as MALVERNIAN GROUP - Old code was EM.] Not Entered
[Formerly known as MALVERNIAN SERIES.] Groom, 1910.
[Formerly known as MALVERNIAN SYSTEM.] Callaway,1888.
[Formerly known as HYPERSTHENE ANDESITE.] (Campbell, R, 1913).
[Formerly known as HYPERSTHENE BASALT SERIES.] (Campbell, R, 1913).
[Formerly known as PART OF MONTROSE VOLCANIC FORMATION.] (Armstrong, M and Paterson, I B, 1970).
[Formerly known as FORTH-TEITH FORMATION.] Bowen, 1999.
[Formerly known as PARTS OF CLYDE VALLEY FORMATION.] Bowen, 1999.
[Formerly known as PARTS OF MOUNTHOUSE FORMATION OF SUTHERLAND.] Bowen, 1999.
[Formerly known as PARTS OF TAYBURN FORMATION.] Bowen, 1999.
[Formerly known as SOURLIE FORMATION.] Bowen, 1999
[Formerly known as MAUCHLINE VOLCANIC BEDS - Old code was MVB.] This term is now Obsolete.
[Formerly known as MEALFUARVONIE SANDSTONE FORMATION - Old code was also MVS.] Not Entered
[Formerly known as MEREVALE SHALES - Old code was also MVSH.] As Merevale Shale Formation.
[Otherwise known as AUSTWICK FORMATION.] The Moughton Whetstones are now considered to be part of the Austwick Formation [Arthurton and others, 1988, p.15].
[Formerly known as EQUATES WITH MEADOW HOUSE CLAY MEMBER.] Nirex Science Report SA/97/045 (Issue 2.0).
[Formerly known as MWMFRI SANDSTONE MEMBER - Old code was also MWSA.] Inadvertent mis-spelling of the name, now corrected. The entry is rendered obsolete in favour of Mwmffri Sandstone Member (MWM).
[Formerly known as MANX SLATE (SERIES) - Old code was MXSL.] Not Entered
[Formerly known as MYTTON BEDS - Old code was also MY.] Not Entered
[Formerly known as MYTTON FLAGS - Old code was also MY.]
[Formerly known as MELBY FORMATION - Old code was also MYF.] Not Entered
[Otherwise known as NO.3 LLANTWIT COAL.] Not Entered
[Otherwise known as MERGED KENT'S THICK AND KENT'S THIN COALS.] Not Entered
[Formerly known as MELBY RHYOLITES.] Mykura & Phemister, 1976.
[Formerly known as CENOMANIAN SANDS.] Kennedy, 1970.
[Formerly known as PASSAGE BEDS - Old code was PBD.] Mottram, 1957
[Formerly known as WARMINSTER GREENSAND.] Edmunds, 1938.
[Formerly known as MUNDESLEY SANDS.] Banham, 1968., Lunkka, 1994.
[Formerly known as MILLYEAT BEDS MEMBER - Old code was also MYTB.] Not Entered
[Formerly known as MYNYDD-TARW ASH.] (Wedd et al., 1929).
[Formerly known as NO.10 VEIN.] Not Entered
[Otherwise known as BIG RIDER COAL (SOUTH WALES).] Not Entered
[Otherwise known as SMALL RIDER COAL (SOUTH WALES).] Not Entered
[Otherwise known as ROMAN CEMENT LIMESTONE.] Not Entered
[Otherwise known as UPPER AND LOWER LLWYDCOED COALS.] The Upper and Lower Llwydcoed coals combine to form the No.2 Rhondda seam.
[Otherwise known as MYNYDDISLWYN COAL (SOUTH WALES).] Not Entered
[Formerly known as SAND OF THE 25 FOOT DRIFT OF THE VALE OF YORK.] British Geological Survey, 1973.
[Formerly known as NANT HIR SHALES - Old code was NSH.] Not Entered
[Formerly known as NAR VALLEY CLAY - Old code was also NARC.] Not Entered
[Otherwise known as ELWY GROUP.] Rocks formerly referred to the Nant-y-Bache Group are now included in the Elwy Group.
[Formerly known as NORTH BERWICK MEMBER.] Not Entered
[Formerly known as NAIRNSIDE AND CLAVA BEDS - Old code was also NCB.] Not Entered
[Formerly known as FLUVIO-MARINE CRAG.] Lyall, 1839.
[Formerly known as NORWICH CRAG - Old code was NCRC.] Includes Chillesford Sand, Chillesford Clay and Westleton Beds.
[Formerly known as LOWER CULM MEASURES.] (Ussher, W A E, 1907).
[Formerly known as NEWTON CHERT MEMBER.] (Whiteley, M J, 1983). Newton Chert Member of Brendon Formation, Pillaton Chert Formation and other chert bodies interpreted as olistoliths within the Crocadon Formation.
[Formerly known as NORTH CHARNWOOD DIORITES.] (Worssam, B C and Old, R A, 1988).
[Formerly known as NEWHAVEN CHALK MEMBER.] Mortimore, 1986; Bristow et al., 1997
[Otherwise known as HALESOWEN FORMATION.] The rocks of the former Newcastle Formation are now assigned to the Halesowen Formation, Powell et al, 1999.
[Formerly known as NEWCASTLE FORMATION (OBSOLETE CODE: USE NCL) - Old code was NG.] Not Entered
[Formerly known as NEWCASTLE GROUP - Old code was NG.] Not Entered
[Formerly known as NEWCASTLE-UNDER-LYME SERIES ; NEWCASTLE BEDS.] Now redefined, particularly in relation to its diachronous top.
[Formerly known as NETTLE CRAGS TUFF FORMATION - Old code was also NCT.] Rank reduced to Member following stratigraphical fra,ework rationalization .
[Formerly known as PART OF NETTLE CRAGS TUFFS AND LAVAS.] (Mathieson, N A, 1986)
[Formerly known as NEWLANDS SERIES.] Not Entered
[Formerly known as NEWTON MANOR FORMATION - Old code was also NEM.] Not Entered
[Formerly known as NEW VEIN.] Not Entered
[Formerly known as NEWLANDS SERIES.] Part of, Lapworth, 1882.
[Formerly known as PENWHAPPLE SOUTH GROUP - Old code was PSO.] Not Entered
[Otherwise known as PONTEFRACT ROCK.] Not Entered
[Formerly known as NANT-Y-MOCH BEDS.] Not Entered
[Formerly known as NANT-Y-MOCH GROUP.] Jones, 1909.
[Formerly known as FYDLYN FELSITIC FORMATION - Old code was also NFFF.] Not Entered
[Otherwise known as ABERDARON BAY GROUP.] Rocks attributed to this unit (Gibbons and McCarroll, 1993) is included within the Nant Ffrancon Subgroup.
[Otherwise known as INCLUDES ABERDARON BAY GROUP..] Gibbons and McCarroll. 1993.
[Formerly known as NANT FFRANCON FORMATION - Old code was also NFR.] Howells, et al. 1983
[Formerly known as NANT FFRANCON GROUP - Old code was also NFR.] Howells and Smith, 1987.
[Formerly known as NANTGLYN FLAGS - Old code was also NGF.] Not Entered
[Formerly known as NANHORON GRANOPHYRIC MICROGRANITE - Old code was also NGM.] Not Entered
[Formerly known as NY GARVAIN FORMATION.] Woodcock et al., 1999.
[Formerly known as NANTGLYN FLAGS FORMATION AND NANT-YSGOLLEN MUDSTONE FORMATION (UNDIFFERENTIATED) - Old code was also NGNY.] Former mis-spelling in the Lexicon. Now superseded by NYNG.
[Formerly known as NOTGROVE FREESTONE.] Buckman, J, 1887.
[Formerly known as NOTGROVE OOLITE.] Buckman, J, 1895, p.393.
[Formerly known as LOWER CALCEREOUS GRIT.] Of Arkell, 1947.
[Formerly known as NOTHE FORMATION.] Sensu Wright, 1986, non BGS.
[Formerly known as BODELWYN BEDS - Old code was also NHBB.] Not Entered
[Formerly known as NEW PIT CHALK MEMBER AND HOLYWELL CHALK MEMBER (UNDIFFERENTIATED).] Not Entered
[Formerly known as LYNAS BEDS - Old code was also NHLB.] Not Entered
[Otherwise known as STEAM COAL.] Parts of the Barnsley Sheet area.
[Formerly known as HOLYHEAD QUARTZITE FORMATION - Old code was also NHQ.] Not Entered
[Otherwise known as FINERY COAL [SOUTH WALES COALFIELD].] Not Entered
[Otherwise known as THREEQUARTERS MINE COAL.] Not Entered
[Formerly known as THREE QUARTERS MINE.] Not Entered
[Otherwise known as THREE QUARTERS VEINS.] Not Entered
[Formerly known as THREE QUARTERS VEINS.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 3 TO 4 (TAW) - Old code was also 3TAW4.] Not Entered
[Otherwise known as MEADOW FARM MARINE BAND.] Ramsbottom and others, 2007.
[Otherwise known as DOUGALED RIDER COAL.]
[Otherwise known as FOUR FEET VEIN [COAL].] Not Entered
[Otherwise known as 5 FOOT VEIN.] Not Entered
[Formerly known as 5 FOOT VEIN.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 5 TO 6 (TAW) - Old code was also 5TAW6.] Not Entered
[Otherwise known as BIG COAL [SOUTH WALES COALFIELD].] Not Entered
[Otherwise known as STANLLYD COAL [IN PART].] The Nine Feet Coal and the Dulas Coal together form the Stanllyd Coal.
[Formerly known as ABBROOK CLAY AND SAND - Old code was also AB.] Not Entered
[Otherwise known as NANT FFRANCON SUBGROUP.] Rushton and Howells, 1998.
[Formerly known as ALDERBURY BRECCIA IN ERBISTOCK BEDS - Old code was also ABBR.] "Alderbury" was a typographical error, corrected 04 November 1999 during BGS DigMap compilation.
[Otherwise known as PART OF SOME TEST LAVA GROUP.] Not Entered
[Formerly known as PART OF THE ARDWELL BRIDGE LAVAS (INFORMAL NAME).] Mac Gregor and Roberts 1963
[Formerly known as AYRSHIRE BAUXITIC CLAY - Old code was also ABC.] Not Entered
[Formerly known as AYRSHIRE BAUXITIC CLAY FORMATION - Old code was also ABC.] Monro, 1982.
[Otherwise known as ABERDEEN DIVISION..] Called Aberdeen Division on BGS Sheet 87W (Ellon).
[Otherwise known as LOW BRIGHT COAL.] The Abdy Coal is known as the Low Bright Coal in South Nottinghamshire and parts of Derbyshire.
[Otherwise known as WINTER COAL.] The Abdy Coal is known as the Winter Coal in areas north of Barnsley.
[Formerly known as PERMIAN EVAPORITE A - Old code was PEVA.] Not Entered
[Formerly known as DIDYMOGRAPTUS BIFIDUS BEDS - Old code was DBB.] Strahan et al. 1909
[Formerly known as ABBEY HEAD FORMATION - Old code was also ABH.] Not Entered
[Formerly known as ABBEY HEAD MEMBER - Old code was also ABH.] Not Entered
[Formerly known as ABBOTSBURY IRONSTONE - Old code was also ABI.] Not Entered
[Formerly known as PLASTIC CLAY BEDS.] Strahan et al, 1907; Ware, 1939.
[Formerly known as BIFIDUS SHALES.] Hicks, H. 1875.
[Formerly known as ABER MAWR BEDS.] Pringle, 1930.
[Formerly known as AM BINNEIN SANDSTONES FORMATION - Old code was also ABN.] Not Entered
[Otherwise known as CLYDACH VALLEY SUBGROUP.] Lateral equivalents, but internal correlations at Formational or lower level have not been established.
[Formerly known as ABERCRIBAN OOLITE - Old code was also ABO.] Not Entered
[Formerly known as ABERCRIBAN OOLITE FORMATION - Old code was also ABO.] Not Entered
[Formerly known as ABERCRIBAN OOLITE GROUP - Old code was also ABO.] Not Entered
[Formerly known as OOLITE GROUP (PART).] George, 1954.
[Otherwise known as ?GLENRAMSKILL FORMATION.] Not known, possibly Glenramskill Formation in Kintyre.
[Formerly known as AUCHENCAR BURN SANDSTONES FORMATION - Old code was also ABS.] Not Entered
[Otherwise known as ABBEY GRAVEL(S).] Horton, 1989.
[Otherwise known as BASAL GRAVEL.] Probably partly equivalent, Gallois, 1988.
[Otherwise known as BASAL SAND AND GRAVEL.] Probably partly equivalent, Gallois,1994.
[Formerly known as FEN GRAVEL.] Formerly an undifferentiated part of fen gravel.
[Otherwise known as WEST LOTHIAN OIL-SHALE FORMATION.] The Aberlady Formation of East Lothian is equivalent to the West Lothian Oil-Shale Formation.
[Formerly known as UPPER LOTHIAN GROUP.] Equates with Aberlady Formation, Wilson, 1974.
[Formerly known as ATHERFIELD CLAY.] Not Entered
[Formerly known as ATHERFIELD CLAY SERIES.] Not Entered
[Formerly known as ATHERFIELD GROUP.] Simpson, 1985
[Formerly known as ALLT-Y-CLYCH CONGLOMERATE MEMBER (FORM FACIES) - Old code was also ACC.] Not Entered
[Otherwise known as ACUTISTRIATUM BAND.] Acutistriatum Band - Comptoni Bed (Modified herein from Hudson and Martill, 1994).
[Formerly known as ACUTISTRIATUM BAND.] Acutistriatum Band plus Comptoni Bed (of Callomon, 1968).
[Formerly known as ACUTISTRIATUM BED.] Acutistriatum Bed (of Hudson and Martill, 1994) plus Comptoni Bed (of Callomon, 1968)
[Formerly known as COMPTONI BED.] Comptoni Bed (of Callomon, 1968) plus Acutistriatum Band (of Buckman, 1909-1930).
[Formerly known as ACHSCRABSTER FLAGSTONE FORMATION.] Fletcher & Key, 1992; Nirex 658, 1994.
[Otherwise known as CLINTSFIELD GRIT.] Equivalent to the Accerhill Sandstone Formation.
[Formerly known as ACCERHILL SANDSTONE FORMATION - Old code was also ACHS.] Rank revised to Bed.
[Formerly known as WELLINGTON CRAG SANDSTONE - Old code was WCR.] Made obsolete.
[Formerly known as ACKWORTH DIVISION.] Not Entered
[Otherwise known as ACHANARRAS FISH BED MEMBER.] Supersedes Achanarras Limestone. New code is AFB.
[Otherwise known as FINAVON CONGLOMERATE MEMBER.] May be separate bodies.
[Formerly known as AUCHMITHIE CONGLOMERATE FORMATION - Old code was also ACO.] Not Entered
[Otherwise known as TREETON ROCK.] Probable correlative, as both lie c.20m above the Aegiranum Marine Band.
[Otherwise known as WARMFIELD ROCK.] This term is now considered obsolete in the light of modern mapping.
[Otherwise known as THREE YARD LIMESTONE.] Acre Limestone considered obsolete within the revised (2008) Carboniferous Stratigraphical Framework.
[Formerly known as AUCHNACLOY SANDSTONE MEMBER - Old code was ACS.] Not Entered
[Otherwise known as FACHWEN FORMATION.] Fachwen Formation is a full and preferred synonym for Tryfan Grit Group.
[Formerly known as TRYFAN GROUP.] Not Entered
[Otherwise known as OSTREA ACUMINATA BEDS.] (Of Welch and Crookall, 1935, and Arkell and Donovan, 1952). Broadly equivalent to Acuminata Beds, based on sections in Somerset and south Cotswolds. Also broadly equivalent to Acuminata Beds is unit ii of Penn (1982) in the Winterborne Kingston Borehole.
[Otherwise known as CALEY GRAGS GRIT.] Not Entered
[Otherwise known as FLOCKTON THIN COAL.] Not Entered
[Otherwise known as CEISWYN FORMATION.] Equivalent of upper part of this Formation (Rushton, A W A and Howells, M F, 1998. Stratigraphical framework for the Ordovician of Snowdonia and the Lleyn Peninsula. British Geological Survey Technical Report RR 98/1).
[Formerly known as ALLT DDU MUDSTONES.] Not Entered
[Otherwise known as HALLAIG SANDSTONE MEMBER.] Not Entered
[Otherwise known as PABAY SHALE FORMATION.] Included as the lower part of a redefined Pabay Shale Formation by Hesselbo et al, 1998 and by Hesselbo and Coe, 2000, but this nomenclature has not been used or accepted by BGS.
[Formerly known as UPPER BROADFORD BEDS.] Not Entered
[Formerly known as ALDRESS SHALE - Old code was also ADSH.] Not Entered
[Otherwise known as BRAMHOPE GRIT.] On the Leeds sheet the Bramhope Grit is a package of 3 sandstones that are mapped separately elsewhere, including the Addingham Edge Grit.
[Formerly known as ADDINGHAM HIGH MOOR GRIT.] Not Entered
[Formerly known as UPPER CALCIFEROUS SANDSTONES.] (Eagan, 1881).
[Formerly known as ACHANARRAS LIMESTONE - Old code was ACL.] Not Entered
[Otherwise known as DOL-CYN-AFON FORMATION.] Not Entered
[Formerly known as ASHFELL SANDSTONE.] Not Entered
[Otherwise known as KIRKCOLM FORMATION.] Kirkcolm Formation (KKF) is the senior synonym of Afton Formation (Floyd, 1996).
[Formerly known as CHIEF LIMESTONE GROUP.] Approximate equivalent.
[Formerly known as GLEASTON FORMATION.] Formerly used in south Cumbria.
[Formerly known as LOWER AND MIDDLE LIMESTONE GROUPS.] Not Entered
[Formerly known as UPPER LIDDESDALE GROUP.] These beds now fall within the Alston Formation.
[Otherwise known as ASHGATE LEAF 1 (OLLERTON).] Not Entered
[Otherwise known as LOUSEY COAL (BARNSLEY).] Not Entered
[Otherwise known as ASHTON GREAT MINE COAL.] Not Entered
[Formerly known as ASHTON GREAT MINE.] Not Entered
[Otherwise known as ASHGATE COAL (NOTTINGHAM).] Not Entered
[Formerly known as ABERSYTWYTH GRITS FORMATION - Old code was also AGF.] The "Formation" was redfined as a Group in the Rhyader/Llanilar Memoir.
[Otherwise known as BOLTON MARINE BAND.] Local name, Cumbria, possibly still to an extent in current use.
[Otherwise known as CEFN COED MARINE BAND.] Local name in part(s) of the South Wales Coalfield, possibly still to an extent in current use.
[Otherwise known as CHANCE PENNYSTONE MARINE BAND.] Local name in the Coalbrookdale area, possibly still to an extent in current use.
[Otherwise known as CHARLES MARINE BAND.] Local name in part(s) of the South Staffordshire and Cannock areas, possibly still to an extent in current use.
[Otherwise known as CROFTS END MARINE BAND.] Local name in parts of the Bristol and Somerset coalfield areas, possibly still to an extent in current use.
[Otherwise known as DUKINFIELD MARINE BAND.] Local name in part(s) of the Lancashire Coalfield, possibly still to an extent in current us
[Otherwise known as EYMORE FARM MARINE BAND.] Local name in Wyre Forest area, possibly still to an extent in current use.
[Otherwise known as GIN MINE MARINE BAND.] Local name in the North Staffordshire area, possibly still to an extent in current use.
[Otherwise known as LOWER TILMANSTONE MARINE BAND.] Local name in the Kent Coalfield, possibly still to an extent in current use
[Otherwise known as MANSFIELD MARINE BAND.] Local name in part(s) of the Derbyshire, Nottinghamshire and Yorkshire coalfields, possibly still to an extent in current use.
[Otherwise known as NUNEATON MARINE BAND.] Local name in part(s) of the Warwickshire Coalfield, possibly still to an extent in current use.
[Otherwise known as OVERSEAL MARINE BAND.] Local name in the South Derbyshire area, possibly still to an extent in current use.
[Otherwise known as PICTON POINT MARINE BAND.] Local name in part(s) of the South Wales Coalfield, possibly still to an extent in current use.
[Otherwise known as RYHOPE MARINE BAND.] Local name, Durham and Northumberland coalfields, possibly still to an extent in current use.
[Otherwise known as SKELTON MARINE BAND.] Local name, Canonbie Coalfield, possibly still to an extent in current use.
[Otherwise known as SKIPSEY'S MARINE BAND.] Local name, Midland Valley of Scotland, possibly still to an extent in current use.
[Otherwise known as WARRAS MARINE BAND.] Local name in the Denbighshire and Flintshire coalfields, possibly still to an extent in current use.
[Formerly known as BOLTON MARINE BAND - Old code was BTNMB.] Local name, Cumbria, possibly still to an extent in current use.
[Formerly known as CEFN COED MARINE BAND - Old code was CCDMB.] Local name in part(s) of the South Wales Coalfield, possibly still to an extent in current use.
[Formerly known as CHANCE PENNYSTONE MARINE BAND - Old code was CPSMB.] Local name in the Coalbrookdale area, possibly still to an extent in current use.
[Formerly known as CHARLES MARINE BAND - Old code was CHSMB.] Local name in part(s) of the South Staffordshire and Cannock areas, possibly still to an extent in current use.
[Formerly known as CROFTS END MARINE BAND - Old code was CSEMB.] Local name in parts of the Bristol and Somerset coalfield areas, possibly still to an extent in current use.
[Formerly known as DUKINFIELD MARINE BAND - Old code was DUKMB.] Local name in part(s) of the Lancashire Coalfield, possibly still to an extent in current use.
[Formerly known as EYMORE FARM MARINE BAND - Old code was EFMMB.] Local name in Wyre Forest area, possibly still to an extent in current use.
[Formerly known as GIN MINE MARINE BAND - Old code was GINMB.] Local name in the North Staffordshire area, possibly still to an extent in current use.
[Formerly known as LOWER TILMANSTONE MARINE BAND - Old code was LTSMB.] Local name in the Kent Coalfield, possibly still to an extent in current use.
[Formerly known as MANSFIELD MARINE BAND - Old code was MFDMB.] Local name in part(s) of the Derbyshire, Nottinghamshire and Yorkshire coalfields, possibly still to an extent in current use.
[Formerly known as NUNEATON MARINE BAND - Old code was NNNMB.] Local name in part(s) of the Warwickshire Coalfield, possibly still to an extent in current use.
[Formerly known as OVERSEAL MARINE BAND - Old code was OSLMB.] Local name in the South Derbyshire area, possibly still to an extent in current use.
[Formerly known as PICTON POINT MARINE BAND - Old code was PPTMB.] Local name in part(s) of the South Wales Coalfield, possibly still to an extent in current use.
[Formerly known as RYHOPE MARINE BAND - Old code was RYMB.] Local name, Durham and Northumberland coalfields, possibly still to an extent in current use.
[Formerly known as SKELTON MARINE BAND - Old code was SNMB.] Local name, Canonbie Coalfield, possibly still to an extent in current use.
[Formerly known as SKIPSEY'S MARINE BAND - Old code was SMB.] Local name, Midland Valley of Scotland, possibly still to an extent in current use.
[Formerly known as WARRAS MARINE BAND - Old code was WARMB.] Local name in the Denbighshire and Flintshire coalfields, possibly still to an extent in current use.
[Formerly known as ALLER GRAVEL - Old code was also AGR.] Not Entered
[Formerly known as TERTIARY DEPOSITS.] De La Beche, 1839.
[Formerly known as ABBOTSGRANGE BEDS.] Not Entered
[Formerly known as ARNGROVE STONE.] Davies, 1907.
[Formerly known as RHAXELLA CHERT - Old code was RCH.] Not Entered
[Formerly known as AUCHENHEW BEDS - Old code was also AHB.] Not Entered
[Formerly known as ASHGILL SHALE FORMATION.] (McNamara, K J, 1979)
[Formerly known as ASHGILL SHALES - Old code was also AHL.] (Salter, 1873)
[Formerly known as AUCHENHEW BEDS - Old code was AHB.] Craig, 1965.
[Formerly known as ARBROATH FORMATION.] Armstrong and Paterson, 1970.
[Formerly known as ARBROATH SANDSTONE.] Armstrong et al., 1985.
[Formerly known as ARBROATH SANDSTONE FORMATION - Old code was also AHS.] Not Entered
[Formerly known as TANNADICE FORMATION.] Arbroath Sandstone and underlying Red Head Formation merge south west of Carnoustie. Both probably equivalent to Tannadice Formation of north west limb of anticline.
[Otherwise known as ARMSHEUGH MEMBER.] Of the Dourlie Formation of Bowen, 1999.
[Formerly known as UNIT C.] Of Jardine et al., 1988.
[Formerly known as AIRY'S BRIDGE FORMATION - Old code was also AIB.] Lithological epithet intriduced (D Millward) 03/03/2003.
[Formerly known as AIRY'S BRIDGE GROUP.] Oliver, 1961.
[Otherwise known as PROGLACIAL LACUSTRINE SEQUENCE IN LOWER WASDALE.] Huddart, 1991.
[Formerly known as AILLEAG DIAMICTON MEMBER - Old code was also AILL.] Rank revised in line with new Stratigraphical Framework.
[Formerly known as AILSTONE TERRACE DEPOSITS (WARWICKSHIRE AVON) - Old code was also AILT.] Not Entered
[Formerly known as AYMESTRY ROCK.] (Phillips,1848).
[Formerly known as SEDGLEY LIMESTONE.] (Whitehead and Pocock, 1947)
[Formerly known as OLDER DRIFT.] Not Entered
[Formerly known as ALBRIGHTON SEAM (CUMBRIA) - Old code was also ALBN.] Not Entered
[Otherwise known as TEIGNMOUTH BRECCIA.] The Alphington Breccia and Heavitree Breccia are together equivalent to the Teignmouth Breccia mapped on 1:50 000 Sheet 339, Selwood, et al, 1984.
[Formerly known as ALPHINGTON BRECCIA MEMBER.] Bristow, 1984.
[Formerly known as ALPHINGTON BRECCIAS.] Laming, 1982.
[Formerly known as HEAVITREE AND ALPHINGTON BRECCIAS - Old code was HABR.] Alphington Breccia is part of Heavitree and Alphington Breccias, Smith, et al, 1974.
[Otherwise known as PRINCE ALBERT COAL.] Not Entered
[Otherwise known as YARD COAL.] British Coal Index = G
[Formerly known as ALBANY DIVISION - Old code was ALBD.] Not Entered
[Formerly known as ALLT CROM PLUTON.] Not Entered
[Formerly known as ALLUVIAL FAN - Old code was also ALF.] Not Entered
[Otherwise known as ALLERMUIR VOLCANIC MEMBER.] Not Entered
[Formerly known as ALLUVIAL AND GLACIAL DRIFT (UNDIFFERENTIATED) - Old code was also ALGD.] Not Entered
[Otherwise known as GRAIANOG SANDSTONE.] Not Entered
[Formerly known as CARNEDD IAGO FORMATION - Old code was CRI.] Not Entered
[Formerly known as CWMORTHIN FORMATION.] Not Entered
[Formerly known as ALLERMUIR GROUP - Old code was ALG.] Mykura, 1960; Peach et al, 1910; Browne et al, 2001.
[Formerly known as ALNE GLACIAL LAKE FORMATION - Old code was also ALNE.] Initial name, subsequently revised before extensive use.
[Formerly known as GLACIAL LAKE DEPOSITS.] Cooper and Burgess, 1993.
[Formerly known as GLACIAL LAKE DEPOSITS (INCLUDING PENECONTEMPORANEOUS FLUVIATILE DEPOSITS).] Powell et al, 1992.
[Formerly known as BEESTON TERRACE.] (Clayton, K M, 1953)
[Formerly known as ALTERNATA LIMESTONE - Old code was also ALT.] Not Entered
[Otherwise known as FIRST SMALLEY COAL.] In some parts of Nottinghamshire.
[Formerly known as COVENTRY SANDSTONE FORMATION - Old code was CYS.] Not Entered
[Formerly known as KEELE BEDS.] The upper part of the former Keele Beds of South Staffordshire (Whitehead and Eastwood, 1925)
[Formerly known as KEELE FORMATION - Old code was KE.] The upper part of the former Keele Formation of South Staffordshire (Besly, 1988; Powell and others, 1992)
[Otherwise known as LULWORTH FORMATION.] The equivalence is not total. Former "Lower Purbeck" beds now comprise the Mupe and Ridgeway members and the lower part of the Worbarrow Tout Member (Lulworth Formation). The upper part of the latter Member was formerly included in the "Middle Purbeck".
[Otherwise known as GOMERSAL ROCK.] Not Entered
[Otherwise known as PENNANT GROUP [SOUTH WALES COALFIELD].] Not Entered
[Formerly known as LOWER PENNANT SANDSTONES - Old code was also LPEM.] Possibly recorded erroneously as Lower Pennant Sandstones, whereas the final character of the Lexicon Code suggests that the original term should have been Lower Pennant Measures.
[Otherwise known as LOWER PLUMPTON GRIT.] Not Entered
[Formerly known as LOWER PLOMPTON GRIT FORMATION - Old code was also LPG.] Treated as a Formation of 1:50000 BGS Sheet 62 (Harrogate). Rank now reverted to Bed.
[Formerly known as LORNE PLATEAU LAVAS - Old code was also LPL.] Incorrect spelling subsequently corrected.
[Formerly known as LADY PORT BANDED GROUP AND BALLANAYRE SLUMP BRECCIA.] Simpson, 1963.
[Formerly known as LORN PLATEAU LAVAS - Old code was LPL.] Not Entered
[Formerly known as LICKEY SANDSTONE - Old code was LIS.] Not Entered
[Formerly known as LOWER WENLOCK LIMESTONE.] Butler, 1939
[Formerly known as LOWER WENLOCK LIMESTONE AND BASEMENT BEDS [TOGETHER].] Butler, 1939
[Formerly known as LOWER MATLOCK LAVA.] Aitkenhead et al., 1985.
[Formerly known as MATLOCK LOWER BASALT - Old code was also LRB.] Not Entered
[Formerly known as MATLOCK LOWER LAVA - Old code was also LRB.] Smith et al., 1967.
[Otherwise known as LOW WATER TUFF FORMATION.] The Lingmoor Fell Formation (which was shown separately on the 1:50K E38 Ambleside sheet) is now considered to be part of the Low Water Tuff Formation.
[Formerly known as LATRIGG MEMBER - Old code was also LRG.] Not Entered
[Formerly known as SHEERBATE FLAGS.] Harkness and Nicholson, 1868.
[Otherwise known as LOWER LIMESTONE GROUP.] May equate to Lower Limestone Formation farther north.
[Formerly known as GLYNTOGRAPTUS TERETIUSALUS SHALES.] Not Entered
[Formerly known as NEMAGRAPTUS GRACILIS SHALES.] Not Entered
[Formerly known as LOCH RYAN BRECCIAS - Old code was LRBR.] Not Entered
[Otherwise known as STRATHCLYDE GROUP.] The beds that were formerly part of the "Lower Oil-Shale Group" are now allocated to various formations within (the lower part of) the Strathclyde Group, depending upon area.
[Formerly known as LEANACH SANDSTONE - Old code was also LSA.] Not Entered
[Formerly known as LEES BOTTOM BASALT - Old code was also LSBB.] Not Entered
[Formerly known as LEES BOTTOM LAVA.] Walters, 1981; Aitkenhead et al., 1985.
[Formerly known as CORNSTONE-BEARING BEDS.] "Cornstone-bearing bed" of the Cementstone Group of the Calciferous Sandstone Measures in Eyles et al.,1949.
[Formerly known as LIMESTONE COAL GROUP - Old code was also LSC.] Not Entered
[Formerly known as CAITHNESS FLAGSTONE SERIES.]
[Formerly known as LOWER CAITHNESS FLAGSTONE GROUP - Old code was LCF.] Not Entered
[Formerly known as LOWER STROMNESS FLAGS - Old code was also LSF.]
[Otherwise known as AVON GROUP.] Not Entered
[Otherwise known as CEFN BRYN SHALES.] Local name in parts of South Wales, the Swansea area in particular.
[Formerly known as LOWER LIMESTONE SHALES - Old code was also LSH.] Not Entered
[Otherwise known as LLANBEDR FORMATION.] The Llanbedr Slates (and their equivalents) are now included in the Llanbedr Formation.
[Otherwise known as ALTON MARINE BAND.] Local name, Notts, Derbyshire, Leicestershire coalfields.
[Otherwise known as ARGILL MARINE BAND.] Local name, Stainmore.
[Otherwise known as HARD BED MARINE BAND.] Local name, Yorkshire Coalfield.
[Otherwise known as KAYS LEA MARINE BAND.] Local name, Northumberland and Durham.
[Formerly known as ARGILL MARINE BAND - Old code was ARGMB.] Local name, possibly still to an extent in current use.
[Formerly known as KAYS LEA MARINE BAND - Old code was KLMB.] Local name, possibly still to an extent in current use.
[Otherwise known as LITTLESTONE MEMBER.] Of the Sourlie Formation of Bowen, 1999.
[Formerly known as UNIT A.] Of Jardine et al., 1988.
[Formerly known as LATHERON SUBGROUP - Old code was also LSU.] Not Entered
[Formerly known as LOWER SPILSBY SANDSTONE - Old code was also LSYS.] Not Entered
[Otherwise known as LLEYN SHEAR ZONE.] Not Entered
[Formerly known as LLYN SHEAR ZONE ROCKS (UNDIFFERENTIATED) - Old code was also LSZ.] Name revised to reflect that this is a lithodemic rock unit composed of the highly deformed correlatives of several adjacent rock divisions. The "Shear Zone" element is retained to avoid confusion with other nearby rock units.
[Formerly known as PENMYNYDD ZONE OF METAMORPHISM.] Greenly, E. 1919; Matley, C A. 1928.
[Formerly known as LITTON TUFF.] Stevenson and Gaunt, 1971.
[Formerly known as LINCOMB TARNS FORMATION - Old code was also LTA.] Originally by Oliver (1961), subsequently without lithological epithet by BGS. Epithet added [D Millward] 06/03/2003.
[Formerly known as LOCH TAY LIMESTONE - Old code was DBLT.] Not Entered
[Formerly known as UPPER LEINTWARDINE BEDS - Old code was ULT.] Not Entered
[Formerly known as LOWER TEALBY CLAY [OF THE TEALBY SERIES].] Swinnerton, 1935
[Formerly known as LOWER TRIGONIA GRIT.] Wright, T, 1860; Buckman, J, 1893.
[Formerly known as LITTLEGATE LIMESTONE - Old code was also LTGL.] Not Entered
[Formerly known as LIGHTSPOUT GROUP - Old code was also LTGP.] Not Entered
[Otherwise known as LOWESTOFT FORMATION.] The Lowestoft Formation [loft] includes those beds formerly referred to as the Lowestoft Till Formation.
[Formerly known as LOWERSTOFT TILL - Old code was also LTIL.] Not Entered
[Otherwise known as GWERSYLLT LITTLE COAL (NORTH WALES) [GWLC].] Not Entered
[Otherwise known as UPPER LITTLE LIMESTONE.] Has been used pedantically to differentiate this bed from the (Brigantian) Lower Little Limestone.
[Otherwise known as LAWTHORN MEMBER.] Of the Sourlie Formation of Bowen, 1999.
[Formerly known as UNIT B.] Of Jardine et al., 1988.
[Otherwise known as SPEAN VIADUCT QUARTZITE FORMATION.] Lateral equivalents.
[Formerly known as LONG TOP MEMBER - Old code was also LTT.] Lithological epithet reintroduced (D Millward) 03/03/2003.
[Formerly known as LONG TOP TUFFS.] Part of the Airy's Bridge Group (Oliver, 1961).
[Formerly known as LOWER TUNBRIDGE WELLS SAND - Old code was also LTW.] Not Entered
[Formerly known as BAMPTON CONGLOMERATE.] Nutt, 1970. 'Bampton' is used elsewhere in the UK stratigraphy.
[Formerly known as LUCCOMBE BRECCIA SERIES.] In Thomas, 1940.
[Formerly known as LONGHAUGH FORMATION - Old code was also LUGH.] Rank revised and lithological epithet introduced.
[Formerly known as LEINTWARDINE BEDS.] Not Entered
[Formerly known as LEINTWARDINE GROUP.] Not Entered
[Formerly known as LOWER LEINTWARDINE BEDS.] Not Entered
[Formerly known as LOWER LEINTWARDINE FORMATION.] Not Entered
[Formerly known as UPPER LEINTWARDINE BEDS.] Not Entered
[Formerly known as LOWER PURBECK BEDS - Old code was LPB.] See notes relating to LPB Alternative Name.
[Formerly known as LULWORTH BEDS.] Not Entered
[Formerly known as INCLUDES THE FLUVIAL PARTS OF SWETTENHAM AND LYTHAM FORMATIONS.] Thomas, in Bowen, (1999), 95pp.
[Formerly known as LYTHAM FORMATION.] The fluvial components of the former Lytham Formation (sensu Thomas, 1999, p.95) are now included in the Lune Valley Formation.
[Formerly known as SWETTENHAM FORMATION.] The fluvial components of the former Swettenham Formation (sensu Thomas, 1999, p.95) are now included in the Lune Valley Formation.
[Formerly known as (UNNAMED LIMESTONE).] As seen at the base of the Breakish Formation (Bhls), as seen on 50k S71W (Broadford).
[Formerly known as BROADFORD BEDS (PART).] Not Entered
[Formerly known as LUACHAIR SANDSTONE FORMATION.] Fletcher & Key, 1992; Nirex 658, 1994.
[Formerly known as LUDLOW AND WENLOCK ROCKS (UNDIFFERENTIATED) - Old code was also LUW.] The terms have been reversed, using the same code, to conform to stratigraphical order.
[Formerly known as LLANRIAN VOLCANIC GROUP - Old code was also LVG.] Not Entered
[Formerly known as LLANRIAN VOLCANIC SERIES.] Not Entered
[Formerly known as LAVERNOCK SHALES - Old code was also LVN.] Not Entered
[Formerly known as GARTH TUFF.] (Equivalent to Garth Tuff)
[Otherwise known as LULWORTH FORMATION.] Not Entered
[Otherwise known as MOUNTAIN COAL [SOUTH WALES COALFIELD].] Not Entered
[Formerly known as GRITS IN SKIDDAW SLATES - Old code was GTSK.] Eastwood et al, 1933.
[Formerly known as LOWESWATER FLAGS.] Dixon, 1925; Eastwood et al, 1931; Jackson, 1978.
[Formerly known as SKIDDAW GRITS.] Not Entered
[Otherwise known as CEFN EINION FORMATION.] Refer to Lexicon entry for CEF.
[Formerly known as WENLOCK LIMESTONE.] 1" 232 Abergavenny (1930)
[Formerly known as UPPER SEDIMENTARY GROUP.] The Lawmuir Formation rocks were part of the former Upper Sedimentary Group.
[Otherwise known as SMITHY COAL.] This name is used more commonly across much of Warwickshire.
[Formerly known as LOWER BOULDER CLAY.] Eastwood et al. 1931.
[Formerly known as LUDLOW AND WENLOCK SEDIMENTARY ROCKS [UNDIFFERENTIATED] - Old code was also LWU.] Not Entered
[Formerly known as LINGMOOR FELL FORMATION - Old code was LRF.] Not Entered
[Formerly known as LOW WATER FORMATION - Old code was also LWW.] Lithological epithet added [D Millward] 05/03/2003.
[Formerly known as LLETTY BEDS - Old code was also LYB.] Not Entered
[Otherwise known as NO.2 BLACKBAND IRONSTONE.] Not Entered
[Formerly known as LYBSTER SUBGROUP - Old code was WIB.] Not Entered
[Formerly known as WICK BEDS - Old code was WIB.] Not Entered
[Formerly known as ARDWELL BRIDGE LAVAS.] The rocks of the Lynebain Basic Volcanic Member were part of the informal Ardwell Bridge Lavas (MacGregor and Roberts 1963).
[Otherwise known as BASIC VOLCANIC GROUP.] Jones, 1933.
[Otherwise known as LOWER BASIC (VOLCANIC) GROUP.] Cox and Wells, 1927
[Otherwise known as LOWER BASIC (VOLCANIC) SERIES.] Cox and Wells, 1921.
[Formerly known as LLYN-Y-GAFR GROUP.] Cox, 1925.
[Formerly known as LLYN-Y-GAFR SPILITIC GROUP.] Cox, A H and Wells, A K. 1916.
[Formerly known as LENY LIMESTONE.] Has been used historically as an informal term for the Leny Limestone and associated slates, best known from Leny Quarry.
[Otherwise known as FRON FRYS FORMATION.] Of Bala, 136.
[Otherwise known as LLUYN-Y-BRAIN FORMATION.] Of Montgomery, 165.
[Formerly known as LLWYN-Y-BRAIN FORMATION - Old code was LYM.] Former Lexicon entry now considered Obsolete.
[Formerly known as V2 BEDS.] King, 1928.
[Formerly known as LYNEBANK BEDS.] Day, 1970.
[Formerly known as LOWER BORDER GROUP.] Lumsden et al, 1967; Day, 1970; McMillan in Lintern and Floyd, in press.
[Otherwise known as LOWER EIGHT FOOT COAL.] Combined with Upper Eight Foot Coal forms Lochgelly Parrot Coal.
[Otherwise known as UPPER EIGHT FOOT COAL.] Combined with Lower Eight Foot Coal forms Lochgelly Parrot Coal.
[Formerly known as LYRE GEO SANDSTONE FORMATION - Old code was also LYR.] Not Entered
[Formerly known as LYDEBROOK SANDSTONE.] Not Entered
[Otherwise known as ELL COAL.] Not Entered
[Otherwise known as KINGLASSIE SPLINT COAL.] Not Entered
[Formerly known as LEZIATE BEDS - Old code was also LZB.] Not Entered
[Formerly known as MOINIAN (UNDIVIDED).] Not Entered
[Otherwise known as HONLEY MARINE BAND.] The correlation was considered tentative by Ramsbottom and others, 1978.
[Otherwise known as MARGATE MEMBER.] Not Entered
[Formerly known as MARGATE CHALK.] Not Entered
[Formerly known as MARGATE CHALK FORMATION - Old code was also MACK.] Not Entered
[Formerly known as BARNS NESS LIMESTONE - Old code was BNSS.] Redundant full equivalent, see: Browne, M A E and 5 others, 1999.
[Formerly known as LOWER VEXHIM LIMESTONE - Old code was LVEX.] Redundant full equivalent, see: Browne, M A E and 5 others, 1999.
[Formerly known as MAIN LIMESTONE GROUP.] Not Entered
[Formerly known as BOWHILLS FORMATION - Old code was BWH.] Ramsbottom and others, 1978; Old and others, 1991
[Formerly known as CALCAREOUS CONGLOMERATE GROUP - Old code was CACG.] Eastwood and others, 1925
[Formerly known as ENVILLE BEDS.] Whitehead and others, 1927
[Formerly known as ENVILLE FORMATION.] Besly, 1988; Powell and others, 1992
[Formerly known as ENDRICK FORMATION - Old code was also ENDR.] Not Entered
[Formerly known as ENNERDALE GRANOPHYRE.] Not Entered
[Otherwise known as EQUIVALENT TO PART OF THE LOWER LIMESTONE FORMATION OF THE MIDLAND VALLEY.] Not Entered
[Formerly known as LOWER LIMESTONE GROUP (UNDIVIDED).] Not Entered
[Formerly known as EAST OGWELL LIMESTONE - Old code was also EOL.] Not Entered
[Otherwise known as HALESOWEN FORMATION.] A small part of the former Erbistock Formation is now included in the Halesowen Formation (Powell et al, 1999).
[Otherwise known as SALOP FORMATION.] Most of the former Erbistock Formation is now included in the Salop Formation (Powell et al, 1999.
[Formerly known as ERBISTOCK GROUP.] In Shrewsbury Coalfield. Replaced by Halesowen and Salop Formations on Shrewsbury reprint (152). Use of Erbistock Formation on Chester (109) is restricted to the Keele Beds part (ie.late Carboniferous).
[Otherwise known as THE ERCALL IGNEOUS INTRUSION.] More specific name.
[Otherwise known as ERLEND SILICIC INTRUSIVES.] Not Entered
[Otherwise known as ERROL MEMBER.] Of the Tay Formation of Bowen, 1999.
[Formerly known as ERROL BEDS.] Not Entered
[Otherwise known as ERIBOLL SANDSTONE FORMATION.] Swett, 1969; Prigmore and Rushton, 1999.
[Formerly known as ARENACEOUS SERIES.] Peach et al., 1907.
[Formerly known as ERIBOLL SANDSTONE FORMATION.] Swett, 1969; Prigmore and Rushton, 1999.
[Formerly known as ERIBOLL SANDSTONE GROUP - Old code was also ERSA.] Johnstone and Mykura, 1989.
[Formerly known as ERSKINE FORMATION - Old code was also ERSK.] Rank revised and lithological epithet introduced.
[Formerly known as EDALE SHALES - Old code was also ESH.] Jackson, 1927; Hudson and Cotton, 1946; Stevenson and Gaunt, 1971.
[Otherwise known as EGLINTON MEMBER.] Of the Sourlie Formation of Bowen, 1999.
[Formerly known as UNIT E.] Of Jardine et al, 1988.
[Formerly known as ENFIELD SILT FORMATION - Old code was also ESI.] Not Entered
[Formerly known as ENNERDALE GRANITE.] Not Entered
[Formerly known as ESKDALE GRANODIORITE.] Not Entered
[Formerly known as ESKDALE INTRUSION - Old code was also ESK.] Interim name prior to full submission
[Formerly known as ESKDALE PLUTON.] Not Entered
[Formerly known as ESCRICK MORAINE.] e.g. Kendall and Wroot, 1924.
[Formerly known as FOURTH LIMESTONE - Old code was LM4.] Not Entered
[Formerly known as LOWER ALSTON GROUP - Old code was AGL.] Akhurst et al., 1997; Arthurton & Wadge, 1981; Eastwood et al., 1931; Eastwood et al., 1968.
[Formerly known as PART OF: CHIEF LIMESTONE GROUP - Old code was CHFL.] Upper part.
[Formerly known as ESK PIKE FORMATION - Old code was also ESP.] Lithological epithet added [D Millward] 11/03/2003.
[Formerly known as ESK PIKE HORNSTONE.] Hartley, 1932; Oliver, 1961.
[Formerly known as BLUE-GREY SERIES.] "Blue-grey Series" of Hall and Connell, 1991.
[Formerly known as ETIVE PLUTONIC COMPLEX - Old code was also ETIVE.] Name considered inappropriate and superseded by Etive Pluton.
[Formerly known as ARDWICK MARL(S) - Old code was AM.] Beds formerly assigned to the Ardwick Marl(s) (Lancashire) are now assigned to the Etruria Formation.
[Formerly known as ETRURIA MARL - Old code was also ETM.] Not Entered
[Formerly known as ETRURIA MARL FORMATION - Old code was also ETM.] Not Entered
[Formerly known as ETRURIA MARL SERIES.] Not Entered
[Formerly known as HADLEY FORMATION - Old code was HD.] Beds formerly assigned to the Hadley Formation (Coalbrookdale) are now assigned to the Etruria Formation.
[Formerly known as KINLET FORMATION - Old code was KTB.] Beds formerly assigned to the Kinlet Formation (Forest of Wyre) are now assigned to the Etruria Formation.
[Formerly known as OLD HILL MARL.] Beds formerly assigned to the Old Hill Marl (South Staffordshire) are now assigned to the Etruria Formation.
[Formerly known as RUABON MARL FORMATION - Old code was RM.] Beds formerly assigned to the Ruabon Marl Formation (Shrewsbury and Denbigh coalfields) are now assigned to the Etruria Formation.
[Formerly known as BUCKHOLM FORMATION.] Locally termed Buckholm Formation (of the Gala Group) by Kassi and Weir, 1993.
[Formerly known as GARNETIFEROUS GROUP.] Term used locally by Walton, 1955.
[Formerly known as HAWICK GROUP.] Beds now included in the Ettrick Group were formerly included partly within the undivided Hawick Group of Webb et al., 1993.
[Formerly known as HAWICK ROCKS.] Beds now included in the Ettrick Group were formerly included partly within the Hawick Rocks of Peach and Horne, 1899.
[Formerly known as QUEENSBURY FORMATION.] Beds now included in the Ettrick Group were formerly included partly within the Queensbury Formation (Webb et al., 1993).
[Formerly known as QUEENSBURY GRITS.] Beds now included in the Ettrick Group were formerly included partly within the Queensbury Grits (Peach and Horne, 1899.
[Formerly known as ETWALL MEMBER.] Bowen, 1999.
[Formerly known as ETWALL SAND AND GRAVEL - Old code was also ETSG.] Not Entered
[Formerly known as HILTON GRAVEL.] in part. Rice, 1968.
[Formerly known as UPPER HILTON TERRACE.] in part. Clayton, 1953; Posnansky, 1960.
[Formerly known as EYCOTT GROUP.] Wadge, 1978
[Formerly known as UNDIFFERENTIATED PART OF BORROWDALE VOLCANIC GROUP - Old code was BVG.] On previous editions of Cockermouth 1:50000 sheet
[Formerly known as MIDDLE SANDS AND GRAVELS.] This form part of the former Middle Sands and Gravels of Eastwood et al (1931).
[Formerly known as EELWELL LIMESTONE - Old code was also EWL.] Not Entered
[Formerly known as HARELAWHILL LIMESTONE.] Frost and Holliday (1980),
[Formerly known as LOWER NEW RED.] Ussher, 1906
[Formerly known as LOWER SANDSTONE AND BRECCIA.] Ussher, 1902.
[Formerly known as MARGINAL DEPOSITS.] Henson, 1971, 1972.
[Formerly known as EXHALL CONGLOMERATE - Old code was EXC.] Not Entered
[Formerly known as ELWY GROUP - Old code was also EY.] Warren et al., 1984.
[Formerly known as BLUE CLAYS.] Woodward, H B, 1893.
[Formerly known as EYPE CLAY.] Not Entered
[Formerly known as MARGARITATUS MARLS.] Lang, W D, 1913.
[Formerly known as MICACEOUS BEDS.] Arkell, W J, 1933.
[Formerly known as COTSWOLD SLATES.] Not Entered
[Formerly known as EYFORD SANDSTONE MEMBER.] Ager, D V, et al, 1973. Sellwood, B W and McKerrow, W S, 1974. These authors included this Member in the Sharp's Hill Formation, whereas Wyaaatt (1996) included it in the Charlbury Formation.
[Formerly known as STONESFIELD BEDS.] Wooodward, H B, 1894.
[Formerly known as STONESFIELD SLATE.] NOTE that the Eyford Member does not include the Stonesfield Slate of STonesfield, Oxon.
[Formerly known as STONESFIELD SLATE SERIES.] Arkell, W J, 1933. Richardson, L, 1929.
[Formerly known as ASHFORD BEDS.] Part of the former Ashford Beds are now included within the Eyam Limestone Formation.
[Formerly known as CAWDOR LIMESTONE.] Not Entered
[Formerly known as EYAM GROUP - Old code was EMGP.] The former Eyam Group included all the rocks now assigned to the Eyam Limestone Formation.
[Formerly known as EYAM LIMESTONES FORMATION.] Spelling error.
[Otherwise known as GAISBY ROCK.] Local name for rock at the same stratigraphical level in the area around Gaisby near Bradford.
[Otherwise known as UPPER BAND ROCK.] Not Entered
[Formerly known as LOWER DEVONIAN [LOWER OLD RED SANDSTONE] LAVAS - Old code was LORE.] Greig, D C. 1988.
[Formerly known as TRYFAN GRIT GROUP - Old code was ACTG.] This term made Obsolete in favour of the synonymous Fachwen Formation.
[Formerly known as FARRINGTON FORMATION AND BARREN RED FORMATION (UNDIFFERENTIATED) - Old code was also FABR.] Ranks of component units revised.
[Otherwise known as REPLACED BY FARNAGH FORMATION [FRNA].] Not Entered
[Formerly known as FAIRMILEHEAD, BRAIDS AND BLACKFORD.] (Included in the volcanic rocks of Fairmilehead, Braids and Blackford, which were considered by Mykura, W, (1960), to be younger than those of the Pentland Hills).
[Otherwise known as BLACKHALL LIMESTONE.] Not Entered
[Formerly known as GREY BEDS.] Eg Rickards, R B, 1964
[Otherwise known as FAROE PLATEAU LAVA GROUP.] Not Entered
[Formerly known as FOUR ASHES SAND AND GRAVEL - Old code was also FASG.] Previous Lexicon entry, prior to formalization of terminology.
[Formerly known as FOUR ASHES SANDS AND GRAVELS.] Original (outside BGS) terminology.
[Formerly known as FARRAGON BEDS - Old code was DBFB.] Not Entered
[Formerly known as FARRAGON VOLCANIC FORMATION.] (Harris et al, 1994).
[Formerly known as BASAL QUARTZITE MEMBER - Old code was BAQ.] Note that whereas this term was superseded by FBQ, it has subsequently been returned to currency.
[Formerly known as FARRINGTON FORMATION, BARREN RED FORMATION, RADSTOCK FORMATION AND PUBLOW FORM - Old code was also FBRP.] Ranks of component units revised.
[Otherwise known as FULLERS EARTH FORMATION AND FROME CLAY FORMATION [UNDIFFERENTIATED].] The same rock units are represented, but placed in conventional "oldest-first" order.
[Otherwise known as INCLUDES FIREDAMP COAL (FDC), HALF YARD COAL (HYC) AND STONE COAL (STEC)..] Not Entered
[Formerly known as CHALK WITHOUT FLINTS.] (Early Geological Survey maps).
[Formerly known as FLAMBOROUGH FORMATION - Old code was also FCK.] Name reverts to original form, including lithological epithet.
[Formerly known as UPPER CHALK.] (Pars).
[Formerly known as FINAVON CONGLOMERATE FORMATION - Old code was also FCO.] Not Entered
[Formerly known as FIVE CLOUDS GRIT.] Not Entered
[Formerly known as FINDHORN COMPLEX.] Van Breemen and Piasecki, 1983.
[Otherwise known as DYKEBAR LIMESTONE.] Believed to be lateral equivalents.
[Formerly known as FULLER'S EARTH.] NB. In Dorset, the Fuller's Earth formerly included the unit now separated as Frome Clay Formation; see Penn and Wyatt (1979).
[Otherwise known as LIDGETT COAL.] May be the same seam in areas to the north.
[Formerly known as FROME CLAY AND FULLERS EARTH [UNDIFFERENTIATED] - Old code was FCFE.] The two components are now placed conventionally in "oldest-first" order.
[Otherwise known as March Gravels, Abbey Sand and Gravel,First Terrace Deposits,etc..] In some areas components are named separately.
[Formerly known as FEN AND TERRACE GRAVEL.] BGS, 1978.
[Formerly known as FEN GRAVEL.] Skertchly, 1877.
[Formerly known as FEN-MARGIN GRAVEL.] Prentice,1950, p.136.
[Otherwise known as MIDDLE BORDER GROUP (PART).] Lumsden et al, 1968; Day, 1970.
[Formerly known as FELL SANDSTONE GROUP - Old code was FLS.] Nairn, 1956; Turner et al, 1993.
[Formerly known as FIRST TERRACE OF THE OUSE.] Not Entered
[Formerly known as FENCE CONGLOMERATE.] of Rolfe (1960)
[Formerly known as IGNEOUS CONGLOMERATE.] of Read (1927).
[Otherwise known as FIRST BROWN METAL COAL.] The Fenton Coal is correlated with the First and Second Brown Metals coals in adjacent areas.
[Otherwise known as SECOND BROWN METAL COAL.] The Fenton Coal is correlated with the First and Second Brown Metals coals in adjacent areas.
[Formerly known as MILBORNE BEDS.] Buckman, S S, Type Ammonites Vol.VI, pp.50-51, 1909-1930.
[Formerly known as THORNFORD BEDS.] Buckman, S S, Type Ammonites Vol.VI, pp.50-51, 1909-1930.
[Otherwise known as MOINE SUPERGROUP.] The metasedimentary component of this 'Series' is now believed to be largely equivalent to the Moine Supergroup; pro tem, however, the 'Series' is treated as a separate Group within the Supergroup.
[Otherwise known as 48 YARDS BAND COAL [WEST YORKSHIRE].] Not Entered
[Formerly known as FFESTINIOG GROUP.] Belt, 1867, 1868.
[Formerly known as LINGULA FLAGS.] Ramsay, 1886.
[Otherwise known as FFESTINIOG FLAGS FORMATION.] This "full" and original terminology should be used in preference to the abbreviated term Ffestiniog Formation.
[Otherwise known as BROWN'S FIRECLAY.] Not Entered
[Formerly known as PANWOOD COAL.] Formerly applied in the Penston and Winton Hill areas.
[Formerly known as FFAIRFACH GRIT - Old code was also FFG.] Not Entered
[Formerly known as FFAIRFACH GRIT MEMBER - Old code was also FFG.] See "Revisions" entry.
[Formerly known as FFAIRFACH GROUP - Old code was FFA.] Williams, 1952. Related Lexicon entry now flagged as Obsolete.
[Formerly known as BUCCLEUCH LIMESTONE.] Lumsden and Wilson, 1961.
[Formerly known as EIGHT YARD LIMESTONE.] Not Entered
[Formerly known as FOUR FATHOM LIMESTONE - Old code was also FFL.] Not Entered
[Formerly known as LOW DEAN LIMESTONE.] Gunn, 1900.
[Formerly known as SANDBANKS LIMESTONE.] Not Entered
[Formerly known as SECOND LIMESTONE.] Not Entered
[Formerly known as UNDERSET LIMESTONE.] Not Entered
[Formerly known as FEN FARM LIMESTONE - Old code was also FFML.] Not Entered
[Formerly known as FRON FRYS SLATES.] Lake and Groom, 1893.
[Formerly known as NOT PREVIOUSLY NAMED, INCLUDED AS PART OF NETTLE CRAGS TUFFS AND LAVAS.] (Mathieson, N A, 1986)
[Formerly known as FRESGOE SANDSTONE.] Fletcher and Key, 1991; Mendum, 1991.
[Formerly known as FRESGOE SANDSTONE BED.] BGS, 2003; Auton, 2003.
[Formerly known as FLUVIOGLACIAL SAND AND GRAVEL, LOCH LOMOND READVANCE - Old code was also FGSL.] Not Entered
[Formerly known as FORTH BEDS.] Not Entered
[Otherwise known as WHITEHOUSE CONGLOMERATE FORMATION.] FHC is obsolete, replaced by WCO (Browne et al, 2001).
[Otherwise known as NONE.] Broadly equivalent to 'Lower Forth Beds'
[Formerly known as FROGHALL HAEMATITE.] Not Entered
[Formerly known as FROGHALL STONE.] Not Entered
[Otherwise known as SILKSTONE ROCK.] The Silkstone Rock in areas farther south occupies the same stratigraphical position.
[Formerly known as FINDLATER CASTLE QUARTZITE.] (Read, H H, 1923).
[Formerly known as FINDLATER FLAGS - Old code was DAFF.] Read, 1923; Peacock et al. 1968.
[Formerly known as FINSBURY GRAVEL - Old code was also FIGR.] Not Entered
[Formerly known as TERRACE 3C.] Berry's 1980, 6-inch maps.
[Formerly known as DINGLE BEDS.] Wilkinson and Kilroe, 1886.
[Formerly known as FINTONA BEDS.] Nolan, 1880.
[Formerly known as FINDOCHTY SUB-GROUP.] Read, H H, 1923.
[Otherwise known as TWO-FEET NINE COAL [SOUTH WALES COALFIELD].] Not Entered
[Formerly known as FISHER BEDS.] Not Entered
[Formerly known as FISHGUARD VOLCANIC COMPLEX.] Not Entered
[Formerly known as FISHGUARD VOLCANIC SERIES.] Not Entered
[Formerly known as FREELAND MEMBER - Old code was also FL.] Of the Colchester Formation (Whiteman and Rose, 1992), Northern Drift Formation (Hey, 1986) Northern Drift Group (Bridgland, 1994).
[Formerly known as FREELAND TERRACE DEPOSITS.] Included in Northern Drift by Arkell, 1947 a, b.
[Formerly known as GLACIAL SAND AND GRAVEL.] Included within undifferentiated Glacial Sand and Gravel of Robson, 1976; Harries, 1977; Horton et al, 1987.
[Formerly known as NORTHERN DRIFT.] Included within undifferentiated Norther Drift of Hull, 1855.
[Formerly known as PLATEAU DRIFT.] Included within the undifferentiated Palteau Drift of Pocock, 1908; Sandford, 1924; Sandford in Pringle; 1926; Shotton et al., 1979.
[Formerly known as SAND AND GRAVEL OF UNKNOWN ORIGIN.] BGS Sheet 254.
[Formerly known as UNBEDDED DRIFT.] Included in this category by Dines in Richardson et al. 1946.
[Otherwise known as MIDGLEY GRIT.] Not Entered
[Formerly known as GORPLEY GRIT.] Not Entered
[Formerly known as MAIN THIRD GRIT.] Not Entered
[Formerly known as REVIDGE GRIT - Old code was RV.] Not Entered
[Formerly known as FLEMING HALL FORMATION - Old code was also FLH.] Not Entered
[Otherwise known as HOBBERLAW LIMESTONE.] Correlative.
[Formerly known as SUB-CARSE PEAT.] In part.
[Otherwise known as FELL SANDSTONE FORMATION.] Forms part of the Fell Sandstone Formation offshore.
[Formerly known as FLUVIAL DEPOSITS (UNDIFFERENTIATED) - Old code was also FLUV.] Qualifier deleted, as unnecessary.
[Otherwise known as FOLLY VEIN.] Not Entered
[Formerly known as FOLLY VEIN.] Not Entered
[Formerly known as BRADFORD BEDS.] Lower part of the formation (but might exclude basal limestone beds), overlain by Wychwood Beds (Arkell, W J, 1947)(Donovan and Hemingway, 1963).
[Formerly known as FOREST MARBLE.] Generally coincides with the usage defined here, but where it includes the "Kemble Beds" it might also include underlying strata. (see Sumbler, 1984).
[Formerly known as KEMBLE BEDS.] A term coined by Woodward (1894) but so loosely applied variously to strata now included in the Forest Marble, White Limestone and Chalfield Oolite formations by him and others e.g. (Richardson, 1933) that it has no value.
[Formerly known as WYCHWOOD BEDS.] Upper part of formation, underlain by Bradford Beds (Arkell, W J, 1947) (Donovan and Hemingway, 1963)
[Otherwise known as FAIRBOTTOM MINE COAL.] Not Entered
[Formerly known as FAIRBOTTOM MINE.] Not Entered
[Formerly known as FORDEN MUDSTONES FORMATION - Old code was also FMF.] Not Entered
[Otherwise known as SPROTBROUGH MEMBER.] Yorkshire Province.
[Formerly known as FORD [MAGNESIAN LIMESTONE] FORMATION - Old code was also FML.] Not Entered
[Formerly known as MIDDLE MAGNESIAN LIMESTONE - Old code was MMGL.] Of County Durham, Tyne and Wear, Cleveland and northernmost North Yorkshire.
[Otherwise known as NONE..] Not Entered
[Formerly known as FIFE NESS BEDS.] Not Entered
[Formerly known as FENTON LIMESTONE - Old code was also FNTL.] Not Entered
[Formerly known as FOLKESTONE BEDS.] See discussion in Casey, 1961
[Otherwise known as FOOT VEIN.] Not Entered
[Formerly known as FOOT VEIN.] Not Entered
[Otherwise known as FORDON EVAPORITE FORMATION.] Not Entered
[Otherwise known as LOWER EVAPORITES..] Stewart, 1949.
[Otherwise known as SEAHAM RESIDUE [MUDSTONE]..] Not Entered
[Formerly known as FORDON EVAPORITE - Old code was FOE.] Not Entered
[Formerly known as FORDON EVAPORITES (OBSOLETE CODE: USE FOEV) - Old code was PDE.] Not Entered
[Formerly known as LOWER EVAPORITES, LOWER EVAPORITE GROUP, ALSO FORDON EVAPORITE(S).] Napier, 1948; Raymond, 1953; Falcon & Kent 1960.
[Formerly known as LOWER BROWN LIMESTONE - Old code was LBRL.] The Foel Formation is part of the former Lower Brown Limestone.
[Otherwise known as FOGGS MINE COAL.] Not Entered
[Formerly known as FOGGS MINE.] Not Entered
[Otherwise known as UPPER MAESMELYN COAL.] Not Entered
[Otherwise known as GOLDEN COAL.] Not Entered
[Otherwise known as GRAIGOLA COAL.] Not Entered
[Otherwise known as ST AGNES BEDS.] May still be in use. Formation rank allocated during compilation of 250K map dataset.
[Formerly known as ST AGNES BEDS - Old code was also SA.] Not Entered
[Formerly known as SANDGATE BEDS.] Not Entered
[Formerly known as BAY SANDSTONE MEMBER.] Upper part of the Bay Sandstone Member of the Sandside Sandstone Formation of Fletcher and Key, 1991.
[Formerly known as SANDY'S CREEK BEDS.] Not Entered
[Formerly known as SANDY'S CREEK FORMATION - Old code was also SACR.] Not Entered
[Formerly known as UPPER OLD RED SANDSTONE - Old code was UORS.] (Lower and middle parts of).
[Formerly known as JENNYCLIFF SLATE FORMATION.] Chandler, P and McCall, G J H, 1985.
[Formerly known as JENNYCLIFF SLATES.] Hobson, D M, 1976; House, M R, et al, 1977; Pound, C J, 1988.
[Formerly known as NORDON FORMATION.] Leveridge et al. 2003.
[Formerly known as NORDON SLATE.] Selwood et al. 1984.
[Formerly known as PLYMPTON SLATE FORMATION (IN PART).] Chandler, P and McCall, G J H, 1985.
[Formerly known as TEMPELLOW, ROSENUM AND MILEPORT SLATE FORMATION.] Burton, CJ, 1974. Burton, C J and Tanner, P W G, 1986.
[Formerly known as TREVOSE SLATE.] Kirchgasser, 1970.
[Formerly known as TREVOSE SLATE FORMATION.] Selwood et al. 1998.
[Formerly known as UPPER DEVONIAN SLATE.] Ussher, W A E, 1907.
[Formerly known as ST ANNE'S HILL PEBBLE BED MEMBER - Old code was also SAHP.] Incorrect spelling; corrected 16 May 2005 on basis of information from D T Aldiss.
[Formerly known as ENVILLE FORMATION.] (Now the Enville Member), forms the upper part of the unit in the West Midlands.
[Formerly known as KEELE FORMATION.] (Now the Alveley Member) forms the lower part.
[Formerly known as MERIDEN FORMATION - Old code was MRD.] Warwickshire
[Formerly known as RADWOOD FORMATION - Old code was RWD.] North Staffordshire.
[Formerly known as STROUD FORMATION.] Parsons, C F, 1980.
[Formerly known as UPPER INFERIOR OOLITE.] Buckman, S S, 1901; Arkell, W J, 1933.
[Formerly known as UPPER RAGSTONES.] Buckman, S S, 1905.
[Formerly known as MIDDLETON GRIT GROUP.] Bradford area, Stephens et al., 1953.
[Formerly known as SABDEN SHALES.] Lancashire.
[Formerly known as BARREN GROUP.] Not Entered
[Formerly known as SARCLET SANDSTONE AND CONGLOMERATE.] No old computer code for this unit, but Sarclet Sandstone = STS, and Sarclet Conglomerate = STC.
[Formerly known as SARCLET SANDSTONE GROUP - Old code was also SAR.] Inappropriate lithological epithet for a Group that ranges from mudstone-dominated to conglomerate-dominated.
[Formerly known as SANDRINGHAM SANDS - Old code was also SAS.] The term "Sandringham Sands" was duplicated in the Lexicon, and carried codes SNDS and SAS. The former Code is now Obsolete.
[Formerly known as ANGULATA BEDS.] Numerous local names including the above.
[Formerly known as PSILOCERAS SHALES.] Numerous local names, including the above.
[Formerly known as SENNI BEDS - Old code was also SB.] Not Entered
[Formerly known as ST ABBS BEDS.] Not Entered
[Otherwise known as COKING COAL.] Name used in parts of South Yorkshire.
[Otherwise known as CRAWSHAW SANDSTONE.] The name Crawshaw Sandstone is applied to beds at the same stratigraphical level over the remainder of the "East Pennine Coalfield", beyond the Yorkshire area.
[Formerly known as SHEEP BUGHT FORMATION (NOW MEMBER) - Old code was also SBH.] Not Entered
[Formerly known as SHEEP BUGHT MEMBER - Old code was also SBH.] Not Entered
[Formerly known as SUTTERBY MARL - Old code was also SBM.] (at the base of the 'Langton Series') (Swinnerton, 1935)
[Otherwise known as ASHTON VALE MARINE BAND.] Local name in the Bristol and Somerset coalfield areas, possibly still in current use to some extent.
[Otherwise known as COALISLAND MARINE BAND.] Local name in part(s) of the Dungannon area, Northern Ireland, possibly still in current use to some extent.
[Otherwise known as POT CLAY MARINE BAND.] Local name in parts of the Derbyshire, Nottinghamshire and Yorkshire coalfield area, possibly still in current use to some extent.
[Otherwise known as QUARTERBURN MARINE BAND.] Local name in parts of the Northumberland and Durham coalfield area, possibly still in current use to some extent.
[Otherwise known as SIX INCH MARINE BAND.] Local name in part(s) of the Lancashire Coalfield, possibly still in current use to some extent.
[Otherwise known as SWINSTONE TOP MARINE BAND.] Local name in the Stainmore (coalfield) area, possibly still in current use to some extent.
[Formerly known as ASHTON VALE MARINEBAND - Old code was AVAMB.] Local name in the Bristol and Somerset coalfield areas, possibly still in current use to some extent.
[Formerly known as COALISLAND MARINE BAND.] Local name in part(s) of the Dungannon area, Northern Ireland, possibly still in current use to some extent.
[Formerly known as POT CLAY MARINE BAND - Old code was PCMB.] Local name in parts of the Derbyshire, Nottinghamshire and Yorkshire coalfield area, possibly still in current use to some extent.
[Formerly known as QUARTERBURN MARINE BAND - Old code was QBMB.] Local name in parts of the Northumberland and Durham coalfield area, possibly still in current use to some extent.
[Formerly known as SIX INCH MARINE BAND - Old code was 6INMB.] Local name in part(s) of the Lancashire Coalfield, possibly still in current use to some extent.
[Formerly known as SWINSTONE TOP MARINE BAND - Old code was SSTMB.] Local name in the Stainmore (coalfield) area, possibly still in current use to some extent.
[Formerly known as SCANDAL BECK FORMATION.] Of Bowen et al., 1999.
[Otherwise known as BEACONSFIELD MEMBER.] One of six members listed by Whiteman and Rose (1992) and Whiteman (1992).
[Otherwise known as GERRARDS CROSS MEMBER.] One of six members listed by Whiteman and Rose (1992) and Whiteman (1992).
[Otherwise known as SATWELL MEMBER.] One of six members listed by Whiteman and Rose (1992) and Whiteman (1992).
[Otherwise known as STOKE ROW MEMBER.] One of six members listed by Whiteman and Rose (1992) and Whiteman (1992).
[Otherwise known as WATERMAN'S LODGE MEMBER.] One of six members listed by Whiteman and Rose (1992) and Whiteman (1992).
[Otherwise known as WESTLAND GREEN MEMBER.] One of six members listed by Whiteman and Rose (1992) and Whiteman (1992).
[Formerly known as "LOWER" ST BEES SANDSTONE.] Jackson et al, 1987.
[Formerly known as ST BEES SANDSTONE.] Not Entered
[Formerly known as ST BEES SAND AND GRAVEL.] Huddart and Tooley, 1972
[Formerly known as ST BEES SHALES FORMATION - Old code was also SBSH.] Minor revision of lithological epithet.
[Formerly known as ST BEES SILTS AND CLAYS.] Of Huddart and Tooley, 1972.
[Formerly known as BAY SANDSTONE MEMBER.] Fletcher & Key, 1992.
[Formerly known as SANDSIDE BAY FORMATION.] NIREX 658, 1994.
[Formerly known as SOUTH BRENTOR BEDS - Old code was also SBT.] Not Entered
[Formerly known as BOULDER CLAY OF LAKE DISTRICT PROVENANCE.] Trotter et al., 1937.
[Formerly known as MIDDLE OXFORD CLAY - Old code was MOXC.] Callomon 1968.
[Formerly known as SCARABEN QUARTZITE.] Not Entered
[Otherwise known as PORTPATRICK FORMATION.] Portpatrick Formation [PPF] is the senior synonym of Scar Formation.
[Formerly known as NONE: INCLUDES PORTPATRICK FORMATION AND GLENWHARGEN FORMATION.] Not Entered
[Formerly known as SANDY CRAIG BEDS.] Not Entered
[Formerly known as SCANDAL BECK LIMESTONE - Old code was also SCBL.] Not Entered
[Formerly known as CARMEL GROUP.] Not Entered
[Formerly known as SCARBA CONGLOMERATE - Old code was DBSC.] Not Entered
[Formerly known as SCREMERSTON COAL GROUP - Old code was also SCG.] Not Entered
[Formerly known as SCOUT HILL FLAGS - Old code was also SCH.] Not Entered
[Formerly known as SOUTH CHARNWOOD DIORITES COMPLEX - Old code was also SCHD.] Also referred to as markfieldite and syenite by Watts, 1947.
[Formerly known as UPPER OLD RED SANDSTONE - Old code was UORS.] Part of the Gargunnock Sandstone.
[Formerly known as SCAR LIMESTONE - Old code was also SCL.] Not Entered
[Formerly known as SEACOMBE FORMATION.] Thomas in Bowen, 1999. p.95.
[Otherwise known as TANNADICE FORMATION.] SCN is a junior synonym, and combined Sheriffmuir, Buttergask and Dunblane formations in Strathmore Syncline area.
[Formerly known as BLAIRGOWRIE SANDSTONE FORMATION - Old code was BWST.] Obsolete terminology replaced by SCN, Browne, et al, 2001.
[Formerly known as SCONE FORMATION - Old code was also SCN.] Armstrong et al., 1985. Now also includes the Campsie Formation of Armstrong et al., 1985, since named the Campsie Limestone Member.
[Formerly known as SCOTTISH STEPHANIAN TO EARLY PERMIAN PLUGS AND VENTS SUITE - Old code was also SCPPV.] Not Entered
[Formerly known as SCARLETT AND STRANDHALL BEDS.] Lewis, 1930.
[Formerly known as SCARLETT BEDS - Old code was SCLB.] Not Entered
[Formerly known as GREY LIMESTONE SERIES.] Phillips, 1829; Fox-Strangways, 1880.
[Formerly known as SCARBOROUGH LIMESTONE SERIES.] Hudleston, 1874; Fox-Strangways, 1880.
[Formerly known as SCALPA SANDSTONE - Old code was also SCS.] Old maps
[Formerly known as SCALPA SANDSTONE FORMATION.] Morton, N and Hudson, J D, 1995.
[Formerly known as FLOODPLAIN TERRACE.] Some of the deposits were included within this grouping by Gozzard, 1975.
[Formerly known as RIVER GRAVEL.] Some of the deposits were included within this generic grouping on BGS Sheet 113.
[Formerly known as SCARLE MEMBER.] Bowen, 1999.
[Formerly known as SCARLE SAND AND GRAVEL - Old code was also SCSG.] Not Entered
[Formerly known as STOCKDALE SHALE FORMATION.] Not Entered
[Formerly known as STOCKDALE SHALES, UNDIVIDED - Old code was also SCSH.] Not Entered
[Formerly known as SCARDEN SANDSTONE FORMATION.] Fletcher & Key, 1992; Nirex 658, 1994.
[Formerly known as SCARLETT VOLCANIC FORMATION - Old code was also SCV.] Dixon et al., 1987.
[Formerly known as SCARLETT VOLCANIC SERIES.] Lewis, 1930.
[Formerly known as BIRK FELL GROUP.] Part of the Birk Fell Group of Moseley, 1960.
[Formerly known as SCALEHOW FORMATION - Old code was also SCW.] Lithological epithet added [D Millward] 03/03/2003.
[Formerly known as UPPER DELTAIC SERIES.] Hemingway, 1949.
[Formerly known as UPPER ESTUARINE SERIES.] Fox-Strangways et al.,1886; Fox-Strangways, 1892.
[Formerly known as ST DAVID'S HEAD INTRUSION - Old code was also SDHI.] Name changed to avoid confusion with St David's Granite in the same area.
[Formerly known as ST DAVID'S GRANITE.] Not Entered
[Formerly known as ST DAVID'S INTRUSION.] Not Entered
[Formerly known as TRYSULL SANDS AND GRAVEL.] Morgan. 1973
[Otherwise known as PART OF THE FORMALLY DEFINED SILSDEN, SAMLESBURY AND HEBDEN FORMATIONS.] Not Entered
[Formerly known as SABDEN SHALES FORMATION - Old code was also SDSH.] Not Entered
[Formerly known as SANDSTING COMPLEX.] Not Entered
[Formerly known as GLOS OOLITE SERIES.] Part of, as used by Arkell, W J, 1933.
[Formerly known as SANDSFOOT BEDS.] Woodward, H B, 1895.
[Formerly known as UPPER CALCAREOUS GRIT.] Part of, in the sense of Arkell, W J, 1933, Strahan, K, 1898. Also as shown on 1-inch Sheet 297, 1969.
[Otherwise known as FETHALAND 'SERIES'.] These are Moine-like rocks west of the Walls Boundary Fault. The name Sand Voe Group dates from Pringle (1964, 1970). The name 'Fethaland Series' was used for these rocks by Mykura (1976) and Phemister (1978), but Sand Voe Group has precedence.
[Formerly known as FETHALAND 'SERIES' - Old code was FETH.] See Alternative Name description.
[Otherwise known as SWALLOW WOOD, TOP HAIGH MOOR, NETHERTON THICK COALS.] These seams in Yorkshire may be equivalents of the Second Waterloo Coal.
[Otherwise known as ST ERTH BEDS.] May still be in use. Formation rank allocated during compilation of 250k map dataset.
[Formerly known as ST ERTH BEDS - Old code was also SE.] see Mitchell (1966).
[Formerly known as RIVER TERRACE DEPOSITS, 2 (SOLWAY ESK) - Old code was also SE2.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 3 (SOLWAY ESK) - Old code was also SE3.] Not Entered
[Otherwise known as KELLY BURN SANDSTONE.] In part? Kelly Burn Sandstone.
[Formerly known as LOWER BOULDER CLAY.] Part of the Lower Boulder Clay and Middle Sands and Gravels od Eastwood et al., 1931, and Trotter et al., 1937.
[Formerly known as MIDDLE SANDS AND GRAVELS.] Part of the Lower Boulder Clay and Middle Sands and Gravels od Eastwood et al., 1931, and Trotter et al., 1937.
[Otherwise known as BROADSTAIRS MEMBER.] Robinson, 1986
[Formerly known as SEAFORD CHALK MEMBER - Old code was also SECK.] Not Entered
[Formerly known as SEDGWICKII GRITS FACIES - Old code was also SED.] Not Entered
[Formerly known as STRATHMORE BEDS.] Hickling, G, 1908. Included part of the Cromlix Formation of the present stratigraphy.
[Formerly known as STRATHMORE GROUP.] Campbell, R, 1913. Included the Cromlix Formation and parts of the Edzell Sandstone and Gannochy Formation of Kincardineshire.
[Otherwise known as BROTHERTON FORMATION.] In Yorkshire Province.
[Formerly known as CONCRETIONARY LIMESTONE.] In part: Smith and Francis, 1967.
[Formerly known as SEAHAM BEDS.] Smith, 1971.
[Formerly known as UPPER MAGNESIAN LIMESTONE.] In part: Smith and Francis, 1967.
[Formerly known as SEASCALE HALL MEMBER - Old code was also SEHA.] Not Entered
[Formerly known as STILE END BEDS.] Marr, 1892, Mitchell, 1925, Dean, 1963.
[Formerly known as STYLE END GRASSING BEDS.] Harkness and Nicholson, 1877, p.462.
[Formerly known as QUEENSBURY FORMATION.] These rocks were formerly incuded within the Queensbury Formation of Webb et al, 1993.
[Formerly known as QUEENSBURY GRITS.] These rocks were formerly incuded within the Queensbury Grits of Peach and Horne, 1899.
[Formerly known as SELLA PARK MEMBER - Old code was also SEP.] Not Entered
[Formerly known as SEATHWAITE FELL FORMATION - Old code was also SET.] Lithological epithet added [D Millward] 05/03/2003.
[Formerly known as SEATHWAITE FELL TUFFS - Old code was also SET.] (Oliver, 1961). Includes Upper Tilberthwaite Tuffs, Wrengill Andesites and Yewdale Beddes Tuffs, (Mitchell, 1940).
[Formerly known as SANDWICK FISH BED - Old code was also SFB.] Not Entered
[Formerly known as MONZIE LIMESTONE AND SCHIST FORMATION.] British Geological Survey Sheet 55E. Smith, R A and Harris, A L, 1976.
[Formerly known as STRATH FIONAN BANDED FORMATION.] (Treagus, J E and King, G, 1978).
[Formerly known as KILNSEY LIMESTONE-WITH-MUDSTONE.] Hudson, 1930.
[Formerly known as SCRABSTER FLAGSTONE FORMATION.] Fletcher & Key, 1992; Nirex 658, 1994.
[Otherwise known as LOWER CWMGORSE MARINE BAND.] Local name, South Wales Coalfield, possibly still in use to some extent.
[Otherwise known as LOWER SANKEY MARINE BAND.] Local name, Lancashire Coalfield, possibly still in use to some extent.
[Otherwise known as PRIORSFIELD MARINE BAND.] Local name, North Staffordshire Coalfield, possibly still in use to some extent.
[Otherwise known as ROWANBURNFOOT MARINE BAND.] Local name, Canonbie [Coalfield] area, possibly still in use to some extent.
[Otherwise known as SILVESTER'S BRIDGE MARINE BAND.] Local name, South Staffordshire Coalfield and Cannock areas, possibly still in use to some extent.
[Otherwise known as SYLVESTERS BRIDGE MARINE BAND.] Local name, South Staffordshire Coalfield, possibly still in use to some extent.
[Formerly known as LOWER CWMGORSE MARINE BAND - Old code was LCGMB.] Local name, South Wales Coalfield, possibly still in use to some extent.
[Formerly known as LOWER SANKEY MARINE BAND - Old code was LSYMB.] Local name, Lancashire Coalfield, possibly still in use to some extent.
[Formerly known as PRIORSFIELD MARINE BAND - Old code was PRMB.] Local name, North Staffordshire Coalfield, possibly still in use to some extent.
[Formerly known as ROWANBURNFOOT MARINE BAND - Old code was RTMB.] Local name, Canonbie [Coalfield] area, possibly still in use to some extent.
[Formerly known as SILVESTER'S BRIDGE MARINE BAND - Old code was SBRMB.] Local name, South Staffordshire Coalfield and Cannock areas, possibly still in use to some extent.
[Formerly known as STRATH FIONAN LIMESTONE.] (Treagus, J E and King, G, 1978).
[Formerly known as ST FERGUS SILTS.] Hall and Jarvis, 1989.
[Formerly known as SHALE GRIT GROUP - Old code was also SG.] See Revisions to the Unit's Definition.
[Otherwise known as BANKNOCK LOWER DRUMGRAY COAL.] Not Entered
[Otherwise known as BLACKTONGUE COAL.] Not Entered
[Formerly known as STRAGGLETHORPE GRANGE LIMESTONE - Old code was also SGGL.] Not Entered
[Formerly known as LOWER CONISTON GRITS.] eg Rickards, R B, 1967
[Formerly known as LOWER CONISTON GRITS (PART).] eg Dakyns, J R, et al, 1891
[Formerly known as STUDGILL FORMATION - Old code was also SGIL.] BGS Lexicon entry lacked lithology epithet.
[Formerly known as SANGOMORE GROUP.] Peach et al., 1907; Phemister, 1960.
[Formerly known as SALTERELLA GRIT.] Peach, et al., 1907.
[Formerly known as SALTERELLA GRIT FORMATION.] Johnstone and Mykura, 1989.
[Formerly known as SALTERELLA GRIT OR QUARTZITE - Old code was also SGQ.] Lapworth, 1883.
[Formerly known as SERPULITE GRIT.] Peach, et al., 1907.
[Formerly known as SERPULITE GRIT MEMBER - Old code was SLGT.] Not Entered
[Formerly known as SWCH GORGE TUFF - Old code was also SGT.] Not Entered
[Otherwise known as MIDDLE SHALES.] MDS
[Formerly known as BALLINAMALLARD MUDSTONE FORMATION - Old code was BLM.] The Shanmullagh Formation is the lower (Devonian) part of the original Ballinamallard Mudstone Formation.
[Formerly known as FINTONA GROUP - Old code was FIN.] House and others, 1977.
[Formerly known as SHAP GRANITE - Old code was also SHAP.] Name revised to allow for different rock types within the intrusion.
[Formerly known as SHIREHAMPTON BEDS.] Kellaway and Welch, 1955.
[Otherwise known as ? LATERAL EQUIVALENT OF MORAR GROUP.] Not Entered
[Formerly known as SHERRYCOMBE BEDS.] Lane, 1965.
[Formerly known as SHERRYCOMBE FORMATION - Old code was also SHCM.] Not Entered
[Formerly known as SHENLEY LIMESTONE BED - Old code was also SHEN.] Rank revised [P M Hopson, 06/12/2004: see Revision data]
[Formerly known as WESTON BEDS - Old code was also WEB.] Not Entered
[Formerly known as LEDBURY BEDS - Old code was LEB.] Groom, 1910.
[Formerly known as WENLOCK LIMESTONE - Old code was also WEL.] Not Entered
[Formerly known as WEMYSS BAY FORMATION - Old code was also WEM.] Expanded unit name.
[Formerly known as WENLOCK SERIES - Old code was also WEN.] Not Entered
[Formerly known as WEST SANDS MICA SCHIST.] Read, H H, 1923.
[Formerly known as WEST SANDS MICA SCHIST MEMBER - Old code was also WESD.] Lithological epithet revised (Hugh Barron, 04-04-2001)
[Otherwise known as WINCH GILL MEMBER.] Of the Wear Formation of Thomas, 1999.
[Formerly known as DURHAM LOWER TILL (BOULDER CLAY).] Smith and Francis, 1967.
[Formerly known as WET SLEDDALE FORMATION - Old code was also WETS.] Lithological epithet added [D Millward] 05/03/2003.
[Formerly known as UPPER OXFORD CLAY MEMBER - Old code was UOXC.] (Buckman, NB.1923, p.41) used the term "Weymouth Clays" for the upper part of the UOC at Weymouth (=Bed 4 of Woodward, (1895). Weymouth Clay and Sand, Weymouth strata and Weymouth Beds were used for part of the Corallian Group, but have been superceded.
[Formerly known as WHARFE CONGLOMERATE - Old code was also WFC.] Not Entered
[Formerly known as OLDER RIVER SAND AND GRAVEL.] These deposits were included in the generic grouping, along with deposits now included in the Balderton Sand and Gravel, on BGS Sheet 114.
[Formerly known as WHISBY FARM MEMBER.] Bowen, 1999.
[Formerly known as EASTGATE FORMATION.] of Rolfe (1960) was part of the present Westgate Formation.
[Formerly known as FENCE CONGLOMERATE.] of Rolfe (1960) was part of the present Westgate Formation.
[Formerly known as KIRK HILL CONGLOMERATE.] of Rolfe (1960) was part of the present Westgate Formation.
[Formerly known as NEWSIDE ARENITE.] of Rolfe (1960) was part of the present Westgate Formation.
[Otherwise known as ABERDARON FORMATION.] Beckly, 1988.
[Formerly known as WITCH GROUND DEPOSITS.] Not Entered
[Formerly known as FLADEN DEPOSITS.] Jansen, 1976.
[Formerly known as LOWER WITCH GROUND DEPOSITS.] Holmes, 1977.
[Formerly known as LOWER WITCH DEPOSITS.] Jansen, 1976.
[Formerly known as WINGFIELD FLAGSTONES.] Not Entered
[Formerly known as WRIGHTHOW BASALT - Old code was also WGTB.]
[Formerly known as WRIGHTHOW MEMBER - Old code was also WGTB.] Lithological epithet re-inserted (D Millward) 04/03/2003.
[Formerly known as WHITTERY ASH - Old code was also WHA.] Not Entered
[Formerly known as CHERT BEDS.] De la Beche, H, 1826; Jukes-Browne, A J and Hill, W, 1900
[Formerly known as SUSSEX WHITE CHALK FORMATION (PART).] Not Entered
[Formerly known as WHITEHOUSE BEDS.] Not Entered
[Formerly known as WHITEHOUSE FORMATION - Old code was also WHE.] Cameron, Stone and Smellie, 1986.
[Formerly known as WHITEHOUSE GROUP - Old code was also WHE.] Rank changed from Group to Subgroup in line with Fortey et al., 2000.
[Formerly known as GRITS GROUP.] Eastwood et al, 1968.
[Formerly known as WATCH HILL GRIT.] Eastwood et al, 1931.
[Otherwise known as WOODHOUSE FLAGS.] Not Entered
[Otherwise known as ARDGOUR GRANITE GNEISS.] Not Entered
[Otherwise known as FORT AUGUSTUS GRANITE GNEISS.]
[Otherwise known as LOCH ARKAIG GRANITE GNEISS.]
[Formerly known as BOULDER CLAY WITH JURASSIC FOSSILS.] Not Entered
[Formerly known as SHELLY BOULDER CLAY.] Not Entered
[Formerly known as PLATEAU GRAVEL.] Peake, 1982.
[Formerly known as WELL HILL GRAVEL - Old code was also WHGR.] Not Entered
[Otherwise known as MIDGLET GRIT.] The upper part of the former Woodhouse Grit is now referred to the Midgley Grit.
[Otherwise known as WOODHOUSE FLAGS.] The lower part of the former Woodhouse Grit is now referred to the Woodhouse Flags.
[Formerly known as LONGSLEDDALE FORMATION.] Macnamara, 1929; Lawrence, and others, 1986.
[Formerly known as STILE END FORMATION.] Macnamara, 1929; Lawrence, and others, 1986.
[Formerly known as WHITE HILL FORMATION.] Not Entered
[Formerly known as LOWER AND UPPER WHITCLIFFE BEDS.] Not Entered
[Formerly known as UPPER AND LOWER WHITCLIFFE FORMATIONS.] Lawson and White, 1989
[Formerly known as UPPER LUDLOW SHALES.] (part of) Whitehead and Eastwood, 1927
[Formerly known as WHITCLIFFE BEDS.] Cocks and others, 1971
[Formerly known as WHITCLIFFE FORMATION.] (Sheet 168).
[Formerly known as WHITCLIFFE GROUP.] Not Entered
[Formerly known as BLISWORTH LIMESTONE - Old code was BWL.] Locally in Buckinghamshire.
[Formerly known as GREAT OOLITE LIMESTONE.] Part of, according to some authors.
[Formerly known as WHITE LIMESTONE - Old code was WLM.] Including the Kemble Beds of some workers -see Sumbler, M G, 1984, table 2.
[Otherwise known as SILKSTONE FOUR FOOT COAL (SOUTH YORKSHIRE).] Not Entered
[Otherwise known as DIPTON FOOT SHELL BED.] Correlative horizon.
[Formerly known as WALLS HILL LIMESTONE - Old code was also WHLS.] Not Entered
[Formerly known as COLEBY MUDSTONE FORMATION.] Upper part only.
[Formerly known as UPPER LIAS - Old code was ULI.] Also used in chronostratigraphical sense, =Toarcian.
[Formerly known as UPPER LIAS CLAY.] Not Entered
[Formerly known as WARREN HOUSE GROUP - Old code was EW.] Pharaoh and others, 1987.
[Formerly known as WARREN HOUSE ROCKS.] Groom, 1900.
[Formerly known as WARREN HOUSE SERIES - Old code was WHSS.] eg Platt, 1933.
[Formerly known as WARREN HOUSE VOLCANIC SERIES.] eg Penn and others, 1971.
[Formerly known as WARREN HOUSE VOLCANICS.] eg Bullard, 1989.
[Otherwise known as BARNSLEY COAL.] North of wakefield Barnsley Coal splits into Warren House Coal and Low Barnsley Coal
[Formerly known as WHITE PORT FORMATION - Old code was also WHP.] Not Entered
[Formerly known as WHITE PORT MEMBER - Old code was also WHP.] Not Entered
[Formerly known as LOWER GREENSAND.] In some areas may have been included in this.
[Formerly known as LOWER GREENSAND GROUP - Old code was LGS.] In some areas may have been included in this.
[Formerly known as PORTLAND GROUP - Old code was PG.] In some areas may have been included in this.
[Formerly known as PORTLAND PURBECK.] In some areas may have been included in this.
[Formerly known as PURBECK GROUP - Old code was PB.] Not Entered
[Formerly known as SHOTOVER IRONSANDS.] Not Entered
[Formerly known as SHOTOVER SANDS - Old code was SHS.] Not Entered
[Formerly known as WHITCHURCH SANDS - Old code was also WHS.] Not Entered
[Formerly known as UPPER PART OF WHITEHILLS GRIT.] Read, H H, 1923.
[Formerly known as WHITTERY SHALES - Old code was also WHSH.] Not Entered
[Otherwise known as GREAT WHIN SILL.] Should be used specifically rather than the former general code. In cases of doubt regarding specific identity, code at the next more general level (Whin Sill Complex: WHINS)
[Otherwise known as LITTLE WHIN SILL.] Should be used specifically rather than the former general code. In cases of doubt regarding specific identity, code at the next more general level (Whin Sill Complex: WHINS)
[Otherwise known as WARREN HOUSE FORMATION.] Not Entered
[Formerly known as KEUPER SALIFEROUS BEDS, UPPER - Old code was UKSB.] Not Entered
[Formerly known as UPPER KEUPER SALIFEROUS BEDS - Old code was UKSB.] Not Entered
[Formerly known as WILKESLEY HALITE FORMATION - Old code was also WHT.] Not Entered
[Formerly known as BASAL PART OF WHITEHILLS GROUP.] (Read, H H, 1923).
[Formerly known as IRON ORE OF WESTBURY.] (Woodward, H B, 1895).
[Formerly known as WESTBURY IRON ORE.] (Blake, J F and Huddleston, W H, 1877).
[Otherwise known as TOP BUSTY COAL.] This seam has British Coal Index = Q1.
[Otherwise known as WIGTON FORMATION.] Thomas, 1999.
[Formerly known as WIGSTON SAND AND GRAVEL - Old code was also WIGS.] Not Entered
[Otherwise known as BOTTOM BUSTY COAL.] This seam has British Coal Index = Q2.
[Formerly known as WINDERMERE GROUP - Old code was also WIN.] Not Entered
[Otherwise known as ABDY COAL.] The Winter Coal is known as the Abdy Coal in areas south of Barnsley.
[Formerly known as DOWNEND FORMATION.] The lower part of the former Downend Formation is now named Winterbourne Formation to distinguish barren red and grey measures frome the South Wales Coal Measures Group.
[Formerly known as INCLUDES COVENTRY SANDSTONE, (LOWER PART).] Not Entered
[Formerly known as WILDERNESS MEMBER.] The unit was regarded as the Wilderness Member of the "Clyde Valley Formation" sensu Bowen (1999, table 25, p.108).
[Otherwise known as GIVENS COAL.] Not Entered
[Otherwise known as TILLEY COAL.] Not Entered
[Formerly known as BED B.] Howell and Geikie, 1861
[Formerly known as BONALY GROUP.] (Peach et al, 1910)
[Formerly known as WARKLAW HILL GROUP.] (Mykura, 1960)
[Formerly known as WARKLAW HILL VOLCANIC FORMATION.] Not Entered
[Formerly known as STRIPED SANDS.] Not Entered
[Formerly known as WOOLWICH BEDS - Old code was also WL.] Not Entered
[Formerly known as WOOLWICH FACIES.] Not Entered
[Formerly known as CORALLINE LIMESTONE.] Not Entered
[Formerly known as LOWER PENTAMERUS LIMESTONE.] Not Entered
[Formerly known as STRIPED SHALE.] Lapworth, 1982.
[Formerly known as WOODLAND LIMESTONE.] Not Entered
[Formerly known as WESTMILL GRAVEL FORMATION - Old code was also WLGR.] Not Entered
[Formerly known as WALL HILL SANDSTONE FORMATION - Old code was also WLH.] Lintern and Floyd, 2000.
[Formerly known as WALL HILL SANDSTONE GROUP - Old code was also WLH.] Deegan, 1973.
[Formerly known as WENLOCK LIMESTONE REEF KNOLLS - Old code was also WLK.] Not Entered
[Formerly known as AWRE FORMATION.] Proposed subdivision of the deposits as defined here, by Allen (1987) - these names might be applied to beds in the Wentlooge Level Formation.
[Formerly known as ESTUARINE ALLUVIUM.] Waters and Lawrence, 1987
[Formerly known as GWYNLLWG FORMATION.] Bowen, 1999) (applied to all tidal flat deposits in Wales)
[Formerly known as NORTHWICK FORMATION.] Proposed subdivision of the deposits as defined here, by Allen (1987) - these names might be applied to beds in the Wentlooge Level Formation.
[Formerly known as RUMNEY FORMATION.] Proposed subdivision of the deposits as defined here, by Allen (1987) - these names might be applied to beds in the Wentlooge Level Formation.
[Formerly known as TIDAL FLAT DEPOSITS.] British Geological Survey
[Formerly known as WENTLOOGE FORMATION.] Proposed subdivision of the deposits as defined here, by Allen (1987) - these names might be applied to beds in the Wentlooge Level Formation.
[Formerly known as BEDS AT D TO H.] (Peach and Horne 1899).
[Formerly known as BEDS D TO H.] (Henderson and Brown, 1870).
[Formerly known as FOSSILIFEROUS MUDSTONES AND SILTSTONES.] Mykura and Smith in Mitchell and Mykura, 1962.
[Formerly known as UPPER OIL-SHALE GROUP AND PART OF LOWER OIL-SHALE GROUP.] Not Entered
[Formerly known as MOTTLED SANDSTONE, UPPER - Old code was UMS.] Not Entered
[Formerly known as SAND AND GRAVEL.] Hall and Jarvis, 1993.
[Formerly known as ATKINSON & FORDINGDALE IGNIMBRITE GROUP.] Nutt, 1970.
[Formerly known as HAWESWATER IGNIMBRITE GROUP.] Nutt, 1970
[Formerly known as HUGH'S LAITHES PIKE IGNIMBRITE GROUP.] Nutt, 1970
[Formerly known as PLACE FELL GROUP.] WLT is part of the Place Fell Group of Moseley (1960).
[Formerly known as WINSTER MOOR LAVA.] Shirley, 1950.
[Formerly known as WINSTERMOOR BASALT - Old code was also WMB.] Not Entered
[Formerly known as WINSTERMOOR LAVA.] Aitkenhead et al., 1985.
[Otherwise known as WHITE MINE COAL.] Not Entered
[Formerly known as COAL A.] COAL A IN THE CROSS BOREHOLE; IN WHICH MURLOUGH BAY COALS C-H WERE FIRST IDENTIFIED.
[Formerly known as WEST MELBURY CHALK MEMBER.] Not Entered
[Formerly known as WORKED AND MADE GROUND - Old code was also WMGR.] Not Entered
[Formerly known as WHINNEYBANK TUFFITE.] (Mathieson, N A, 1987)
[Formerly known as WHINNY BANK FORMATION - Old code was also WNB.] Not Entered
[Otherwise known as YOREDALE GROUP.] Wensleydale Group considered obsolete within the revised (2008) Carboniferous Stratigraphical Framework.
[Formerly known as WENSLEYDALE FORMATION - Old code was also WND.] Not Entered
[Otherwise known as WINDMILL MINE COAL.] Not Entered
[Formerly known as WINDMILL MINE.] Not Entered
[Formerly known as WINDRUSH FORMATION - Old code was also WNR.] Ramsbottom, et al., 1978.
[Formerly known as WINDRUSH GROUP.] Poole, 1969.
[Formerly known as CROSBY THWAITE FORMATION - Old code was CYT.] [? part] This proposed term was never used by the BGS and the rocks that it encompassed are now regarded as part of the Whorneyside Tuff Formation.
[Formerly known as WHORNEYSIDE FORMATION - Old code was also WNY.] Lithological epithet (Branney, 1991) reintroduced (D Millward) 03/03/2003.
[Formerly known as BLACK SHALES OF MALVERN.] Not Entered
[Formerly known as WHITE-LEAVED OAK SHALES - Old code was WLSH.] Not Entered
[Formerly known as CAMREGAN LIMESTONE, UPPER - Old code was CMRL.] Lapworth, 1882. Quarterly Journal of the Geological Society, Vol. 38, p. 209-243.
[Formerly known as UPPER PENTAMERUS LIMESTONE.] Lapworth 1882
[Formerly known as WOOLLEY GRIT - Old code was also WOG.] Not Entered
[Formerly known as WODDHOUSE GRIT FLAGS - Old code was WHGF.] Not Entered
[Formerly known as WOODHOUSE GRIT - Old code was WHGT.] The Woodhouse Flags are the lower part of the former Woodhouse Grit. The upper part of the latter is now referred to the Midgley Grit (MGG).
[Formerly known as WOLSTON SERIES.] Shotton, 1953.
[Formerly known as WOLSTONIAN GLACIAL DEPOSITS.] Not Entered
[Formerly known as SECOND TERRACE DEPOSITS (RIVER SEVERN).] Not Entered
[Formerly known as WORCESTER TERRACE.] (Wills, L J, 1938).
[Formerly known as WORCESTER TERRACE DEPOSITS [RIVER SEVERN] - Old code was also WORT.] Not Entered
[Formerly known as FROSWICK TUFFS.] Mitchell, 1929. These are equivalent to the upper part of the Woundale Tuff Formation.
[Formerly known as WOUNDALE FORMATION - Old code was also WOU.] BGS Lexicon entry lacked lithology epithet.
[Formerly known as WOUNDALE TUFF - Old code was also WOU.]
[Formerly known as CHALKY SERIES.] Woodward (1895)
[Formerly known as WOCKLEY MEMBER.] Partial synonym of the Wockley Member in the sense of Wimbledon (1976).
[Formerly known as WOCKLEY MICRITIC MEMBER.] Wimbledon and Cope, 1979; Wimbledon, 1980; included Ragstone or Ragstone Beds at the base.
[Formerly known as WOOLWICH AND READING BEDS - Old code was also WRB.] Now Woolwich and Reading Beds Formation.
[Formerly known as WOOLWICH AND READING SERIES.] Not Entered
[Formerly known as BURE VALLEY BEDS.] Wood, 1866.
[Formerly known as CROMER FOREST BED SERIES.] Reid, 1882.
[Formerly known as WEYBOURNE CRAG.] Wood and Harmer, 1872.
[Formerly known as UPPER COLDWELL BEDS - Old code was UCW.] Not Entered
[Formerly known as WEARDE-EFFORD GRIT.] (Ussher, W A E, 1907).
[Otherwise known as TWEEDDALE MEMBER.] The Wrae Limestone occurs as blocks within the Tweeddale Member of the Shinnel Formation (Floyd, 1996).
[Formerly known as UPPER MOTTLED SANDSTONE - Old code was UMS.] Not Entered
[Formerly known as WILDMOOR BEDS.] Not Entered
[Formerly known as CATON COAL GRIT.] TIDDEMAN, 1891
[Formerly known as ROEBURNDALE GRIT - Old code was RBG.] SLINGER, R. 1936; MOSELEY, 1954, 1956.
[Formerly known as WARD'S STONE SANDSTONE FORMATION - Old code was also WRST.] Rank reduced.
[Formerly known as WRAYSLACK TUFFS AND LAVAS.] This member was formerly included within the Wrayslack Tuffs and Lavas.
[Formerly known as WHITEHAVEN SANDSTONE - Old code was also WS.] Not Entered
[Formerly known as WHITEHAVEN SANDSTONE SERIES.] Eastwood, T, et al, 1931.
[Formerly known as WET SIDE EDGE FORMATION - Old code was also WSE.] Not Entered
[Formerly known as WET SIDE EDGE MEMBER - Old code was also WSE.] Lithological epithet introduced (D Millward) 03/03/2003.
[Formerly known as WHORNEYSIDE IGNIMBRITE.] Branney, 1991.
[Otherwise known as LOWER MAID COAL.] Not Entered
[Otherwise known as MAID COAL.] Not Entered
[Formerly known as WESTON BEDS - Old code was WEB.] Not Entered
[Formerly known as WESTON GROUP.] Not Entered
[Formerly known as WESTON MEMBER.] Not Entered
[Formerly known as LOWER WESTLEIGH LIMESTONES.] Thomas, 1963a, b)
[Formerly known as UPPER WESTLEIGH LIMESTONES.] Thomas, 1962.
[Formerly known as WESTLEIGH LIMESTONE GROUP - Old code was also WST.] Thomas, 1962.
[Formerly known as WESTLEIGH LIMESTONES - Old code was also WST.] Not Entered
[Formerly known as WITNEY COAL FORMATION - Old code was also WTC.] Not Entered
[Formerly known as WITNEY COAL GROUP.] Poole, 1969.
[Formerly known as DARTMOUTH SLATES.] (Ussher, W A E, 1891; included these rocks within the Dartmouth Slates)
[Otherwise known as LLANELLY FORMATION.] Not Entered
[Formerly known as THORNY FORCE SANDSTONE - Old code was TFS.] British Geological Survey, 1997.
[Formerly known as WHITA FORMATION.] Leeder, 1974.
[Formerly known as WHITA SANDSTONE.] Lumsden et al, 1967.
[Formerly known as WITTERING `DIVISION'.] Informal usage (Curry et al, 1977).
[Formerly known as MARLY DRIFT.] Straw, 1979.
[Formerly known as WHITTERY ASH - Old code was WHA.] Not Entered
[Formerly known as WHITTERY VOLCANIC GROUP.] Not Entered
[Formerly known as THIRD OR WOLVERCOTE TERRACE DEPOSITS.] Harries, 1977; Corser, 1978, 1981a, b.
[Formerly known as THIRD TERRACE DEPOSITS.] BGS Maps; Robson 1975; 1976.
[Formerly known as THIRD, MIDDLE, 40 FOOT OR WOLVERCOT [SIC] TERRACE DEPOSITS.] Pocock, 1908.
[Formerly known as WOLVERCOT [SIC] TERRACE DEPOSITS.] Sandford, 1924; Sandford in Pringle, 1926; Dines in Richardson, 1946.
[Formerly known as WOLVERCOTE MEMBER - Old code was also WV.] Not Entered
[Formerly known as WOLVERCOTE TERRACE DEPOSITS.] Arkell, 1947a, b.
[Formerly known as WOLVERCOTE [GRAVEL] FORMATION.] Bridgland, 1994.
[Formerly known as WHITWICK COMPLEX.] (Moseley, J and Ford, T D, 1985. This includes other units now assigned to the Charnwood Lodge Formation).
[Otherwise known as MILLDALE LIMESTONE FORMATION.] The Weaver Beds are now considered part of the Milldale Limestone Formation (Aitkenhead and Chisholm, 1982, p.10).
[Otherwise known as EQUATES WITH THE GREY GRITS OF THE MERTHYR TYDFIL DISTRICT..] Hall, et al. 1973; Taylor & Thomas, 1974, 1975; Barclay, Taylor & Thomas, 1988.
[Formerly known as PALE QUARTZITIC SANDSTONES.] Barclay, 1975.
[Formerly known as CORALLIAN.] Rocks of the West Walton Formation formed part of the "Corallian".
[Formerly known as ELSWORTH ROCK GROUP.] Arkell , 1933; Edmonds and Dineham, 1965.
[Formerly known as ELSWORTH ROCK SERIES.] Arkell , 1933; Edmonds and Dineham, 1965.
[Formerly known as LOWER CORALLIAN ARGILLACEOUS GROUP.] Not Entered
[Formerly known as WEST WALTON BEDS - Old code was also WWB.] Not Entered
[Otherwise known as BRENNARND GRIT.] Bray, 1927.
[Otherwise known as GRASSINGTON GRIT.] Bray, 1927.
[Otherwise known as UPPER HOWGATE EDGE GRIT.] Bray, 1927.
[Formerly known as WINSTOW SLATE MEMBER.] Selwood et al. 1984
[Otherwise known as OXFORD CLAY FORMATION AND WEST WALTON FORMATION [UNDIFFERENTIATED].] Preferred stratigraphical order for components.
[Formerly known as MOUNT PLEASANT GROUP (PARS).] House and Butcher, 1973.
[Formerly known as SALTERN COVE FORMATION (PARS).] Leveridge et al. 2003.
[Formerly known as WHITEWAY SLATE FORMATION - Old code was WYSL.] Not Entered
[Formerly known as WYCH BEDS.] Note that Wyche was previously spelled without an 'e', but the name of the type locality is now spelled with an 'e'.
[Otherwise known as EIGHT FOOT COAL.] Not Entered
[Formerly known as CORAL RAG - Old code was CLR.] Arkell, 1927.
[Formerly known as WHEATLEY LIMESTONE - Old code was also WYLS.] Arkell, 1927.
[Formerly known as MERCIA MUDSTONE GROUP (MIDDLE DIVISION) - Old code was MMG.] Informal
[Formerly known as MIDDLE KEUPER MARL - Old code was MKM.] Upper half (formal).
[Formerly known as WYCH MUDSTONE FORMATION - Old code was also WYM.] Not Entered
[Formerly known as WITHY MILLS VEIN.] Not Entered
[Otherwise known as ALBERT COAL.] See ALBT.
[Otherwise known as G.] British Coal Index.
[Formerly known as YEWBANK MEMBER - Old code was also YBK.] Not Entered
[Formerly known as YEWBANK SANDSTONE (IN PART).] Not Entered
[Otherwise known as YARD VEIN.] Not Entered
[Formerly known as YARD VEIN.] Not Entered
[Otherwise known as YARD MINE COAL.] Not Entered
[Formerly known as YARD MINE.] Not Entered
[Otherwise known as BLBC BLOCKING COAL (WEST YORKSHIRE).] Correlated alternative unit.
[Otherwise known as BASSY COAL.] Not Entered
[Otherwise known as BIG MINE COAL.]
[Otherwise known as COMPSTALL TWO FEET.]
[Otherwise known as KILN COAL OF WHALEY BRIDGE.]
[Otherwise known as MOUNTAIN MINE OF MELLOR.]
[Formerly known as YEDMANDALE PASSAGE MEMBER.] Name shortened after publication of Pickering Sheet.
[Formerly known as TRANSITION GROUP (PARS).] Mckeown et al., 1973.
[Formerly known as YEOLMBRIDGE BEDS.] Selwood, 1960.
[Formerly known as YORKSHIRE CATCHMENTS GROUP - Old code was also YKC.] Not Entered
[Formerly known as KENFIG FORMATION.] These deposits were included within the Kenfig Formation sensu Bowen, 1999.
[Formerly known as LIDDESDALE GROUP (IN PART) - Old code was LDD.] Not Entered
[Formerly known as YORK MORAINE.] Kendall and Wroot, 1924
[Formerly known as YOTTENFEWS FORMATION - Old code was also YOT.] Not Entered
[Formerly known as STOCKDALE RHYOLITE.] Not Entered
[Formerly known as STOCKDALE RHYOLITE FORMATION.] Not Entered
[Formerly known as STOCKDALE RHYOLITE MEMBER.] Not Entered
[Formerly known as YARLSIDE RHYOLITE.] Not Entered
[Formerly known as STRETTON SERIES.] Lapworth, 1910.
[Formerly known as GLACIOLACUSTRINE DEPOSITS, UNDIFFERENTIATED.] British Geological Survey, 1994.
[Formerly known as GLACIOLACUSTRINE SAND AND GRAVEL.] British Geological Survey, 1994
[Formerly known as LACUSTRINE DEPOSITS.] British Geological Survey, 1994
[Formerly known as PORTWAY FORMATION - Old code was YSP.] Cave and others, 1985. Local details for SO39SW; Langford and Lynas, 1985. Local details for SO39NE. British Geological Survey Open File Reports.
[Formerly known as WENTNOR SERIES.] Lapworth, 1910.
[Formerly known as HAUGHMOND CONGLOMERATE - Old code was also YWCH.] Not Entered
[Formerly known as OAKSWOOD CONGLOMERATE - Old code was also YWOC.] Not Entered
[Otherwise known as ABBEY CONGLOMERATE.] Original BGS.Dic_Strat entry recorded 'Darnford Conglomerate (= Abbey Conglomerate)'. Pocock R W. et al., 1938.
[Formerly known as LAWN HILL CONGLOMERATE - Old code was also YWOL.] Member status provided in line with other conglomeratic members within various parts of the Longmyndian Supergroup.
[Formerly known as RADLITH CONGLOMERATE - Old code was also YWOR.] Not Entered
[Otherwise known as AUK FORMATION.] Cameron, 1993.
[Formerly known as BASAL PERMIAN BRECCIA.] Not Entered
[Formerly known as BASAL PERMIAN SANDS.] Not Entered
[Formerly known as BASAL PERMIAN SANDSTONE.] Not Entered
[Formerly known as BASAL PERMIAN YELLOW SANDS.] Not Entered
[Formerly known as LOWER RED SANDSTONE.] Sedgewick, 1829.
[Formerly known as YELLOW SAND.] Sedgwick, 1829.
[Formerly known as YELLOW SANDS.] Hutton, 1831.
[Formerly known as YELLOW SANDS FORMATION.] Smith, 1994.
[Formerly known as AISLABY GROUP - Old code was ALBG.] See note for Don Group.
[Formerly known as DON GROUP - Old code was DON.] Replaces and amalgamates this and several other groups proposed by Smith (1974) which equate with English Zechstein cycles EZ1-EZ5, but which were not applicable at outcrop.
[Formerly known as ESKDALE GROUP - Old code was EKD.] See note for Don Group.
[Formerly known as STAINTONDALE GROUP - Old code was STND.] See note for Don Group.
[Formerly known as TEESIDE GROUP - Old code was TES.] See note for Don Group.
[Formerly known as KENNACK GNEISS (AND GRANITE) - Old code was also ZKG.] Not Entered
[Formerly known as OLD LIZARD HEAD SERIES (MICA-SCHIST AND GREENSCHIST) - Old code was also ZMS.] Not Entered
[Formerly known as TRELEAGUE QUARTZITE - Old code was also ZTQ.] Not Entered
[Formerly known as GREY CHALK MEMBER - Old code was GECK.] The informal term Grey Chalk "Member" was used in the 1980s to describe beds that now form the upper part of the Zig Zag Chalk Formation. Previously the term "Grey Chalk" had been used to describe most of the rock now placed in the Grey Chalk Subgroup.
[Otherwise known as RUTLAND FORMATION.] Not Entered
[Formerly known as UPPER EDAY SANDSTONE - Old code was also UED.] Not Entered
[Formerly known as UPPER ELTON BEDS - Old code was also UELB.] The term Upper Elton Formation is now preferred for informal BGS use.
[Formerly known as UPPER FOLLIFOOT GRIT.] Hudson, 1934, 1937, 1938; Wilson, 1960, 1997; Cooper and Burgess, 1993.
[Formerly known as UPPER FOLLIFOOT RIDGE GRIT.] Edwards et al., 1950.
[Formerly known as UPPER FIRECLAY OF THE PASSAGE GROUP - Old code was also UFCL.] Not Entered
[Formerly known as MIDDLE FULLER'S EARTH CLAY.] (Cope, J C W, et al, 1980).
[Formerly known as LOWER LLANBADOC AND UPPER FOREST BEDS - Old code was LCUF.] The order of the terms has been reversed to conform to current BGS practice of placing the older named unit first.
[Otherwise known as UPPER FOOT MINE COAL.] Not Entered
[Formerly known as UPPER FOOT MINE.] Not Entered
[Otherwise known as THORNBROUGH LIMESTONE.] Not Entered
[Otherwise known as UPPER FELL TOP LIMESTONE.] Spelling formerly used on various BGS maps but now considered incorrect, with "Felltop" being preferred.
[Formerly known as UPPER FELL TOP LIMESTONE - Old code was also UFTL.] This spelling is now considered incorrect by the BGS. However it still occurs on a number of published maps, and hence may also be considered as an alternative, though unrecommended, spelling.
[Otherwise known as UPPER FELL TOP LIMESTONE.] Correlative in the area north of the River Tyne.
[Formerly known as "RED SERIES" CLAYS OR GLACIOLACUSTRINE DEPOSITS.] Connell et al., 1985; Peacock, 1984; Hall and Connell, 1991.
[Formerly known as FIRESTONE, UPPER GREEN-SAND OR MALMSTONE.] Murchison, R I, 1826.
[Formerly known as MALM.] Martin, P J, 1828.
[Formerly known as MALM ROCK OF WESTERN SUSSEX.] Mantell, G, 1822.
[Formerly known as MERSTHAN BEDS.] Fitton, W H, 1824.
[Formerly known as UPPER GREENSAND FORMATION [EXCEPT DEVON] - Old code was also UGS.] It is now considered that the Upper Greensand of Devon can be included within the single, National, definition of the Upper Greensand Formation.
[Formerly known as WHITE FIRESTONE ALTERNATING WITH BLUE RAG.] White, G, 1789.
[Otherwise known as UPPER GREENSAND FORMATION.] Not Entered
[Formerly known as HALDON SANDS.] Ussher,1913. Jukes-Browne,1900.
[Formerly known as HALDON SANDS FORMATION.] Hamblin and Wood, 1976.
[Formerly known as UGBROOKE PARK BEDS.] Ussher, 1892.
[Formerly known as UGBROOKE PARK SANDSTONES.] House and Butcher, 1973.
[Formerly known as UPPER HARTFELL SHALES - Old code was also UHBS.] Lapworth, 1878
[Formerly known as UIG HILLS - HARRIS GRANITE COMPLEX - Old code was also UIGH.] Not Entered
[Otherwise known as SALPERTON LIMESTONE FORMATION.] Not Entered
[Formerly known as URSWICK LIMESTONE - Old code was also UL.] Rose and Dunham, 1977.
[Formerly known as CLAY IN UPPER LIAS.] Not Entered
[Otherwise known as UPPER LIMESTONE FORMATION.] Not Entered
[Formerly known as UPPER LIMESTONE GROUP - Old code was also ULGS.] Not Entered
[Otherwise known as WHITBY MUDSTONE FORMATION.] In England/Wales superseded by formations described by Cox and others (1999). Corresponds broadly to Whitby Mudstone Formation plus Blea Wyke Sandstone Formation in Cleveland Basin, and to Whitby Mudstone Formation plus Bridport Sand Formation elsewhere.
[Formerly known as CAVE OOLITE.] of Yorkshire.
[Formerly known as CAVE OOLITE MEMBER.] Gaunt et al. 1992
[Formerly known as HIBALDSTOW BEDS.] of north Lincolnshire. (e.g. Kent, 1966),
[Formerly known as HIBALDSTOW LIMESTONES MEMBER.] None
[Formerly known as UPPER LINCOLNSHIRE LIMESTONE.] Ashton, 1980 (and subsequent accounts).
[Formerly known as LOGAN ROCK.] Heddle, 1883. This rock name was applied to all sorts of other rocks in the area. See discussion in Oldroyd (1990) and Calloway (1883).
[Otherwise known as GILMERTON LIMESTONE.] Not Entered
[Formerly known as ULPHA ANDESITES.] Mitchell, 1956; Firman, 1957.
[Formerly known as ULPHA FORMATION - Old code was also ULP.] Lithological epithet added [D Millward] 03/03/2003.
[Otherwise known as OYSTERMOUTH FORMATION.] Local name in parts of South Wales, especially the Gower/Swansea area.
[Formerly known as UPPER LUDLOW SHALES - Old code was ULUS.] (Phillips, 1848; Groom, 1900).
[Formerly known as UPPER LUDLOW SILTSTONE FORMATION.] (Brandon, 1989).
[Formerly known as UPPER LUDLOW SHALES - Old code was also ULUS.] Phillips, 1848; Groom, 1900
[Formerly known as UPPER LUDLOW SILTSTONE FORMATION.] Brandon, 1989
[Formerly known as UPPER MILLER'S DALE LAVA.] Stevenson and Gaunt, 1971.
[Formerly known as UPPER MILLERS DALE BASALT - Old code was also UMB.] Not Entered
[Otherwise known as BROTHERTON FORMATION.] Not Entered
[Otherwise known as SWANSEA TWO FEET COAL.] Not Entered
[Otherwise known as UPPER MOUNTAIN MINE COAL.] Not Entered
[Formerly known as UPPER MOUNTAIN MINE - Old code was also UMOM.] Not Entered
[Formerly known as BANNISDALE SLATES - Old code was BASL.] (Upper part).
[Formerly known as ELLEN COAL.] Not Entered
[Formerly known as ISABELLA COAL.] Not Entered
[Otherwise known as URICONIAN GROUP.] Not Entered
[Formerly known as URICONIAN GROUP - Old code was U.] This name was subsequently reinstated, but against the code "UO"
[Formerly known as URICONIAN GROUP [UNDIFFERENTIATED] - Old code was also UO.]
[Formerly known as URICONIAN VOLCANIC GROUP - Old code was also UO.] Not Entered
[Otherwise known as WEYMOUTH MEMBER.] (Cox et al. 1992).
[Formerly known as UPPER ANHYDRITE - Old code was also UPA.] Not Entered
[Otherwise known as PEVERIL POINT MEMBER.] Rocks formerly regarded as "Upper Purbeck Beds" are now assigned to the Peveril Point Member of the Durlston Formation.
[Otherwise known as UPPER PLOMPTON GRIT.] Cooper and Burgess, 1993. Upper Brimham Grit is probably preferred.
[Formerly known as SECOND BRIMHAM GRIT.] Wilson and Thompson, 1965.
[Formerly known as UPPER PLOMPTON GRIT.] Cooper and Burgess, 1993. Might still be used as an alternative.
[Formerly known as UPPER PENNANT SANDSTONES - Old code was also UPEM.] Possibly recorded erroneously as Upper Pennant Sandstones, whereas the final character of the Lexicon Code suggests that the original term should have been Upper Pennant Measures.
[Otherwise known as UPPER BRIMHAM GRIT.] Possibly the preferred term.
[Otherwise known as UPPER PLUMPTON GRIT.] Not Entered
[Formerly known as UPPER PLOMPTON GRIT FORMATION - Old code was also UPG.] Rank reverted to informal Bed.
[Formerly known as UPWARE LIMESTONE - Old code was also UPL.] Not Entered
[Formerly known as UPPER POTASH - Old code was also UPT.] Not Entered
[Formerly known as UPPER QUARRIED LIMESTONE - Old code was QLU.] Not Entered
[Formerly known as UPPER WENLOCK LIMESTONE.] Butler, 1939 [equivalent to Upper Quarried Limestone and Passage Beds, together].
[Formerly known as MATLOCK UPPER BASALT - Old code was also URB.]
[Formerly known as MATLOCK UPPER LAVA - Old code was also URB.] Smith et al., 1967.
[Formerly known as UPPER MATLOCK LAVA.] Aitkenhead et al., 1985.
[Otherwise known as DIAMOND COAL.] Of Valleyfield
[Otherwise known as MIDDLE LIMESTONE GROUP.] Not Entered
[Otherwise known as UPPER CAITHNESS FLAGSTONES.] Term is of restricted use, Fletcher, 1996.
[Formerly known as UPPER STROMNESS FLAGS - Old code was also USF.] Mykura, 1976
[Formerly known as GLAUCONITIC SANDS [IN PART] AND FERRUGINOUS GRIT.] Swinnerton, 1937.
[Formerly known as UPPER TEALBY CLAY (OF THE TEALBY SERIES) SWINNERTON, 1935.] Not Entered
[Formerly known as TRIGONIA GRIT.] Murchison, R I, 1845.
[Formerly known as UPPER TRIGONIA GRIT.] Wright, T, 1860.
[Otherwise known as CAMBRIENSE MARINE BAND.] This correlation is uncertain. See Supplementary Information and Ramsbottom and others, 1978, Plate 3.
[Formerly known as UPPER THAMES VALLEY FORMATION.] Gibbard and Sumbler in Bowen, p.47.
[Formerly known as UPPER TUNBRIDGE WELLS SAND - Old code was also UTW.] Not Entered
[Formerly known as UPPER CHALK.] Tate, 1865
[Formerly known as UPPER CHALK (WHITE LIMESTONE) AND LOWER CHALK (GLAUCONITIC CHALK).] Portlock, 1843
[Formerly known as WHITE LIMESTONE.] Hancock, 1961
[Formerly known as WHITE LIMESTONE FORMATION.] BGS publications and Fletcher, 1977
[Formerly known as UPPER YARD SEAM - Old code was also UYD.] The area was previously unspecified. Thus there is a small chance that the code has been used to identify a seam of the same name in a different area.
[Otherwise known as CROWN COAL (NORTH WALES) [CWNC].] Not Entered
[Otherwise known as SCATSTA DIVISION.] The Scatsta 'Division' is a Group-level local equivalent name: both are probable correlatives of the Appin Group within the Dalradian Supergroup.
[Formerly known as VAASETTER SANDSTONE GROUP - Old code was also VAG.] Not Entered
[Formerly known as LOWER PELITE.] Shepherd, 1970; Wilson 1975.
[Formerly known as BRECCIO-CONGLOMERATE, USSHER, 1908.] Edmonds and williams, 1985.
[Otherwise known as AMMAN MARINE BAND.] Local name in part(s) of the South Wales Coalfield area, possibly still to an extent in current use.
[Otherwise known as BAGWORTH MARINE BAND.] Local name in part(s) of the Leicestershire Coalfield, possibly still to an extent in current use.
[Otherwise known as CLAY CROSS MARINE BAND.] Local name in part(s) of the Derbyshire, Nottinghamshire and Yorkshire coalfields, possibly still to an extent in current use.
[Otherwise known as HARRY STOKE MARINE BAND.] Local name in part(s) of the Bristol and Somerset coalfield areas, possibly still to an extent in current use.
[Otherwise known as HARVEY MARINE BAND.] Local name in the Northumberland and Durham coalfield areas, possibly still to an extent in current use.
[Otherwise known as LLAY MARINE BAND.] Local name in part(s) of the Denbighshire and Flintshire coalfields, possibly still to an extent in current use.
[Otherwise known as MOLYNEUX MARINE BAND.] Local name in part(s) of the South Derbyshire Coalfield, possibly still to an extent in current use.
[Otherwise known as PENNYSTONE MARINE BAND.] Local name in part(s) of the Coalbrookdale area, possibly still to an extent in current use.
[Otherwise known as QUEENSLIE MARINE BAND.] Local name in the Canonbie Coalfield area, possibly still to an extent in current use.
[Otherwise known as RIPPLE MARINE BAND.] Local name in the Kent Coalfield, possibly still to an extent in current use.
[Otherwise known as SEVEN FEET BANBURY MARINE BAND.] Local name in the North Staffordshire Coalfield area, pssibly still to an extent in use.
[Otherwise known as SEVEN FEET MARINE BAND.] Local name in the Warwickshire Coalfield area, possibly still to an extent in current use, but not present in the Lexicon.
[Otherwise known as SOLWAY MARINE BAND.] Local name in the Cumbrian coalfield areas, possibly still to an extent in current use.
[Otherwise known as STINKING MARINE BAND.] Local name in part(s) of the South Staffordshire and Cannock coalfield areas, possibly still to an extent in current use.
[Otherwise known as SUTTON MANOR MARINE BAND.] Local name in part(s) of the Lancashire Coalfield area, possibly still to an extent in current use.
[Formerly known as AMMAN MARINE BAND - Old code was AMNMB.] Local name in part(s) of the South Wales Coalfield area, possibly still to an extent in current use.
[Formerly known as BAGWORTH MARINE BAND - Old code was BTHMB.] Local name in part(s) of the Leicestershire Coalfield, possibly still to an extent in current use.
[Formerly known as CLAY CROSS MARINE BAND - Old code was CLCMB.] Local name in part(s) of the Derbyshire, Nottinghamshire and Yorkshire coalfields, possibly still to an extent in current use.
[Formerly known as HARRY STOKE MARINE BAND - Old code was HSTMB.] Local name in part(s) of the Bristol and Somerset coalfield areas, possibly still to an extent in current use.
[Formerly known as HARVEY MARINE BAND - Old code was HAMB.] Local name in the Northumberland and Durham coalfield areas, possibly still to an extent in current use.
[Formerly known as LLAY MARINE BAND - Old code was LAYMB.] Local name in part(s) of the Denbighshire and Flintshire coalfields, possibly still to an extent in current use.
[Formerly known as MOLYNEUX MARINE BAND - Old code was MNXMB.] Local name in part(s) of the South Derbyshire Coalfield, possibly still to an extent in current use.
[Formerly known as PENNYSTONE MARINE BAND - Old code was PYSMB.] Local name in part(s) of the Coalbrookdale area, possibly still to an extent in current use.
[Formerly known as QUEENSLIE MARINE BAND - Old code was QMB.] Local name in the Canonbie Coalfield area, possibly still to an extent in current use.
[Formerly known as RIPPLE MARINE BAND - Old code was RIPMB.] Local name in the Kent Coalfield, possibly still to an extent in current use.
[Formerly known as SEVEN FEET BANBURY MARINE BAND - Old code was 7FBMB.] Local name in the North Staffordshire Coalfield area, pssibly still to an extent in use.
[Formerly known as SEVEN FEET MARINE BAND - Old code was 7FTMB.] Local name in the Warwickshire Coalfield area, possibly still to an extent in current use, but not present in the Lexicon.
[Formerly known as SOLWAY MARINE BAND - Old code was SWYMB.] Local name in the Cumbrian coalfield areas, possibly still to an extent in current use.
[Formerly known as STINKING MARINE BAND - Old code was STGMB.] Local name in part(s) of the South Staffordshire and Cannock coalfield areas, possibly still to an extent in current use.
[Formerly known as SUTTON MANOR MARINE BAND - Old code was SUMB.] Local name in part(s) of the Lancashire Coalfield area, possibly still to an extent in current use.
[Formerly known as VIGRA BEDS - Old code was VIB.] Not Entered
[Otherwise known as BLACK COAL [SOUTH WALES COALFIELD].] Not Entered
[Otherwise known as CHOPPINGTON BROOKWELL COAL.] Not Entered
[Otherwise known as HAUXLEY BROCKWELL COAL.] Not Entered
[Otherwise known as T.] British Coal Index.
[Formerly known as BASAL SANDSTONE UNIT.] Recognised as a basal sandstone unit (Group 1) by Prestwich, J, 1840 and Murchison, R I, 1839. Modified and interpreted by Whitehead, T H, et al, 1928. Wolverhampton sheet description.
[Formerly known as CARBONIFEROUS LIMESTONE.] Termed 'Carboniferous Limestone' on 1929 edition of Wolverhampton Geological Sheet.
[Otherwise known as ELWY GROUP.] Rocks formerly referred to the Vovod Group are now included in the Elwy Group.
[Formerly known as BOULDER CLAY, GLACIAL TILL.] BGS maps and memoirs for Vale of York
[Formerly known as VALE OF YORK GLACIGENIC FORMATION - Old code was also VYORK.] Initial name, subsequently revised before extensive use.
[Formerly known as VALE OF YORK TILL FORMATION - Old code was also VYORK.] Early name, subsequently revised before extensive use.
[Formerly known as WEALDEN BEDS.] Rawson et al, 1978.
[Formerly known as WEALDEN FACIES.] Rawson, 1992.
[Formerly known as WEALDEN SERIES.] Not Entered
[Otherwise known as WORSLEY FOUR FOOT MINE COAL.] Not Entered
[Formerly known as WORSLEY FOUR FOOT MINE - Old code was also W4FT.] Not Entered
[Otherwise known as ACKTON ROCK.] See Revisions section.
[Formerly known as BRACHIOPOD BEDS.] Buckman, S S, 1922.
[Formerly known as WADBISTER NESS GROUP.] Not Entered
[Formerly known as WADBISTER NESS SERIES.] Not Entered
[Formerly known as WALLS FORMATION - Old code was also WAF.] Not Entered
[Formerly known as WARD HILL GROUP - Old code was also WAG.] Not Entered
[Otherwise known as SIXTEEN INCH COAL.] Of Whaley Bridge.
[Otherwise known as SMITHY COAL.] Of Whaley Bridge.
[Formerly known as SCANDINAVIAN DRIFT.] Not Entered
[Formerly known as LOESS.] Treated as an unnamed bed of loess by Huddart (2003).
[Formerly known as WALLOWBARROW FORMATION - Old code was also WAL.] Lithological epithet added [D Millward] 03/03/2003.
[Formerly known as BRECKNOCKSHIRE FORMATION.] Sensu Bowen, 1999 - parts of this are included.
[Formerly known as ELENID FORMATION.] Sensu Bowen, 1999 - parts of this are included.
[Formerly known as ERYRI FORMATION.] Sensu Bowen, 1999 - parts of this are included.
[Formerly known as GLAMORGAN FORMATION.] Sensu Bowen, 1999 - parts of this are included.
[Formerly known as MEIRION FORMATION.] Sensu Bowen, 1999 - parts of this are included.
[Formerly known as BASEMENT BEDS.] In part. Hudleston, 1883; Arkell, 1933.
[Formerly known as LOWER PORTLAND BEDS.] (Woodward, 1895; Reid, 1903)
[Formerly known as PORTLAND SAND.] (1:500 000 Wincanton (297) Sheet)
[Formerly known as WARDOUR MEMBER.] (Wimbledon, 1976; Wimbledon and Cope, 1978; Wimbledon, 1980)
[Formerly known as WANLIP SAND AND GRAVEL - Old code was also WASG.] Not Entered
[Formerly known as WANLIP TERRACE.] (Rice, R J, 1968).
[Formerly known as WARDIE SHALES - Old code was also WASH.] Not Entered
[Formerly known as AVON SECOND TERRACE [DEPOSITS].] Worssam et al, 1989; Old et al., 1991.
[Formerly known as NO.2 TERRACE [DEPOSITS].] Shotton, 1953; Tomlinson, 1925.
[Formerly known as SECOND OR WASPERTON TERRACE [DEPOSITS].] Barclay et al., 1997.
[Formerly known as SECOND TERRACE DEPOSITS.] Old et al, 1987.
[Formerly known as SECOND TERRACE [DEPOSITS].] Williams and Whittaker, 1974; Edmonds et al, 1965.
[Formerly known as WASPERTON MEMBER - Old code was also WAT.] Bowen, 1999; Maddy et al, 1991.
[Formerly known as WASPERTON TERRACE DEPOSITS [WARWICKSHIRE AVON] - Old code was also WAT.] Not Entered
[Otherwise known as WASPERTON MEMBER.] The Upper and Lower parts of the former "Wasperton Terrace Deposits [Warwickshire Avon]" are now included within the single unit: Wasperton Member.
[Formerly known as WASPERTON TERRACE DEPOSITS, LOWER PART (WARWICKSHIRE AVON) - Old code was also WATA.] Not Entered
[Formerly known as WASPERTON TERRACE DEPOSITS, UPPER PART (WARWICKSHIRE AVON) - Old code was also WATB.] Not Entered
[Otherwise known as HUGHES COAL [SOUTH WALES COALFIELD].] Not Entered
[Formerly known as SECOND CROMER TILL.] Banham, 1968.
[Formerly known as WALCOTT DIAMICTON.] Hart, 1987; Lunkka, 1994.
[Formerly known as ARDWICK GROUP - Old code was ARG.] Lancashire (Powell et al, 1999).
[Formerly known as BARREN MEASURES - Old code was BME.] Powell et all, 1999.
[Formerly known as RED MEASURES.] Not Entered
[Formerly known as MILLOM PARK FORMATION - Old code was MPA.] Johnson et al., 2001
[Formerly known as WABERTHWAITE FORMATION - Old code was also WB.] Lithological epithet inserted (D Millward) 05/03/2003.
[Formerly known as WEE BANKIE BEDS.] Not Entered
[Otherwise known as EQUIVALENT TO CLEE GROUP.] Greig, and others, 1968.
[Formerly known as WOODBANK SERIES.] Not Entered
[Formerly known as WATCOMBE BRECCIA - Old code was also WBR.] Not Entered
[Formerly known as WATCOMBE FORMATION - Old code was also WBR.] Not Entered
[Formerly known as ESTUARINE LIMESTONES.] or LIMESTONE: Thompson, 1930.
[Formerly known as UPPER ESTUARINE LIMESTONE.] Woodward and Thompson, 1909.
[Formerly known as UPPER ESTUARINE LIMESTONES.] or LIMESTONE: Thompson, 1930.
[Formerly known as WELLINGBOROUGH MEMBER - Old code was also WBRO.] Not Entered
[Formerly known as LEIGHTON BUZZARD SANDS.] Not Entered
[Formerly known as LOWER GREENSAND.] Within the area given in Geographical Limits. As used in Biggleswade district to north (Edmonds and Dinham, 1965).
[Formerly known as BLACK SHALES.] Not Entered
[Formerly known as CONTORTA SHALES.] Not Entered
[Formerly known as LOWER RHAETIC - Old code was LRRH.] Not Entered
[Formerly known as WESTBURY BEDS.] Not Entered
[Formerly known as WEALD CLAY - Old code was also WC.] Not Entered
[Otherwise known as LONSDALEIA DUPLICATA BAND.] Not Entered
[Otherwise known as IRISH SEA COAST GLACIGENIC SUBGROUP.] The originally proposed name of West Cumbria Drift Group was made obsolete and its component rocks reassigned to the newly proposed Irish Sea Coast Subgroup, within the North Britain Glacigenic Group.
[Formerly known as WORM CRAG GROUP.] Firman, 1957. Proceedings of the Yorkshire Geological Society, Vol.31, p.39-64.
[Formerly known as LOWER CULM MEASURES.] Ussher, 1887; 1892.
[Formerly known as SALTASH FORMATION.] In part: Leveridge et al. 2002.
[Formerly known as WINSTOW CHERT - Old code was also WCH.] Not Entered
[Formerly known as WINSTOW CHERTS.] House and Butcher, 1973.
[Formerly known as CHALK WITH FLINTS (LOWER PART).] Early Geological Survey maps.
[Formerly known as MIDDLE CHALK PLUS UPPERMOST (PLENUS MARLS) OF LOWER CHALK.] Not Entered
[Formerly known as WELTON FORMATION - Old code was also WCK.] Name now reverts to its original form, including the Chalk epithet.
[Formerly known as FOWLS HEUGH CONGLOMERATE FORMATION - Old code was FHC.] Not Entered
[Formerly known as ROVEN FORMATION.] Not Entered
[Formerly known as AMMONITES PLANORBIS BEDS.] Not Entered
[Formerly known as INSECT BEDS.] Not Entered
[Formerly known as OSTREA BEDS.] Not Entered
[Formerly known as PLANORBIS BEDS.] Not Entered
[Formerly known as PRE-PLANORBIS BEDS.] Not Entered
[Formerly known as SAURIAN BEDS.] Not Entered
[Formerly known as WADHURST CLAY - Old code was also WDC.] Not Entered
[Formerly known as WASHOVER DEPOSITS - Old code was also WDEP.] Not Entered
[Formerly known as LONGSTONE MUDSTONE FORMATION - Old code was LSM.] These rocks are now considered part of the Widmerpool Formation.
[Formerly known as MIXON LIMESTONE-SHALES FORMATION - Old code was MX.] Not Entered
[Formerly known as WOOLRIDGE GRAVELS.] Hey, 1958
[Formerly known as WOOLRIDGE TERRACE.] Wills, 1938.
[Formerly known as WOODHOUSELEE AND BRAID HILLS GROUP.] (Peach et al, 1910)
[Formerly known as WOODHOUSELEE GROUP.] (Mykura, 1960)
[Formerly known as WOODHOUSELEE VOLCANIC FORMATION.] Not Entered
[Formerly known as CRACKINGTON FORMATION.] These beds were formerly considered part of the Crackington Formation of Edmonds et al., 1979.
[Formerly known as NORTHAM BEDS.] These beds were formerly included within the Northam Beds of Prentice, 1960.
[Formerly known as WESTWARD HO FORMATION.] Not Entered
[Formerly known as WOO DALE GROUP - Old code was WDG.] Not Entered
[Formerly known as WOO DALE LIMESTONES - Old code was also WDL.] Not Entered
[Formerly known as WOODLANDS MEMBER.] INCLUDES ALL OF LATTER.
[Formerly known as LOWER CULM MEASURES.] Ussher, 1887, 1892)
[Formerly known as TOFT HILL BEDS - Old code was also TFH.] Not Entered
[Formerly known as GLACIOLACUSTRINE DEPOSITS.] Davies et al.,2003
[Formerly known as LLECHRYD MEMBER.] Bowen, 1999
[Otherwise known as HALF YARD COAL.]
[Otherwise known as ROYSTON COAL.] Not Entered
[Formerly known as THORNBOROUGH GRIT - Old code was also TG.] Former (incorrect) spelling.
[Formerly known as THROSTLE GARTH MEMBER - Old code was also TGH.] Lithological epithet added (D MIllward) 04/03/2003.
[Formerly known as CARW FORMATION.] Beckly, 1988.
[Formerly known as TINTAGEL VOLCANIC SERIES.] Not Entered
[Formerly known as TRENTISHOE GRITS - Old code was also TGR.] Lane, 1965; Evans, 1922.
[Formerly known as TROWIE GLEN SANDSTONE FORMATION - Old code was also TGS.] Re-ranked to Member [January, 1998]
[Formerly known as LONDON CLAY GROUP.] (Cooper, 1976).
[Formerly known as THORNBURY BEDS - Old code was also THB.] Not Entered
[Formerly known as MIDDLE SANDS AND GRAVELS.] Part of this former unit, as used by Eastwood et al., 1931.
[Otherwise known as LEAHILL LIMESTONE (?).] Not Entered
[Otherwise known as BARNSLEY COAL.] Name used in South Yorkshire, roughly equivalent.
[Formerly known as EDZELL SANDSTONE FORMATION - Old code was EDS.] Not Entered
[Formerly known as EDZELL SANDSTONES.] Not Entered
[Formerly known as TEITH FORMATION - Old code was also THF.] Not Entered
[Formerly known as THORNSGILL FORMATION.] Of Bowen et al., 1999.
[Formerly known as HELSBY SANDSTONE FORMATION.] Name first defined by Thompson, D B, 1970a, where the Thurstaston Sandstone Bed was included within the Helsby Sandstone Formation.
[Formerly known as THIN INCONSISTENT BED OF HARD SANDSTONE.] Termed 'Thin Inconsistent bed of hard sandstone' (Wedd, C B et al, 1923) within the Upper Mottled Sandstone in previous geological surveys.
[Formerly known as WILMSLOW SANDSTONE FORMATION.] The current definition places the bed within the Wilmslow Sandstone Formation.
[Formerly known as THORNHILL SANDSTONES - Old code was also THHS.] Not Entered
[Formerly known as THRELKELD MICROGRANITE - Old code was also THKD.] Name revised to allow for alternative rock types.
[Formerly known as THORNBOROUGH LIMESTONE - Old code was also THL.] Former (incorrect) spelling.
[Otherwise known as NETHERTON THICK COAL.] Name used elsewhere in Yorkshire.
[Otherwise known as SECOND WATERLOO COAL.] May be same seam in Nottinghamshire.
[Otherwise known as SWALLOW WOOD COAL.] Name used elsewhere in Yorkshire.
[Formerly known as THORNTON MUDSTONE - Old code was also THMU.] Not Entered
[Formerly known as THORNTON MUDSTONES.] Wilson and Evans, 1990.
[Otherwise known as WARP.] As recorded in historical borehole records and other written accounts.
[Formerly known as SAND OF 25 FOOT DRIFT.] In part: British Geological Survey, 1973.
[Formerly known as SILT AND CLAY OF 25 FOOT DRIFT.] British Geological Survey, 1973.
[Formerly known as TUTTLE HILL QUARTZITE - Old code was also THQ.] Includes all of latter.
[Formerly known as LOWER SANDY BEDS.] Richardson, 1979.
[Formerly known as THORNCROFT SANDS MEMBER.] Gaunt et al., 1992.
[Formerly known as THIRLSTANE SANDSTONE - Old code was THI.] Craig, 1956; Deegan, 1970.
[Formerly known as THIRLSTANE SANDSTONE FORMATION - Old code was also THSD.] Not Entered
[Formerly known as THIRLSTANE SANDSTONE MEMBER - Old code was also THSD.] Not Entered
[Formerly known as SECOND TERRACE DEPOSITS.] BGS Sheet 115.
[Formerly known as SOUTHREY TERRACE DEPOSITS.] The deposits were formerly included herein (along with the Castle Sand and Gravel Member) by Straw, 1958.
[Formerly known as TATTERSHALL-KIRKBY TERRACE DEPOSITS.] The deposits were formerly included herein (along with the Castle Sand and Gravel Member) by Holyoak and Preece. 1985.
[Formerly known as THORPE MEMBER.] Bowen, 1999.
[Formerly known as BOULDER CLAY.] Clayton, K M, 1953.
[Formerly known as PENNINE DRIFT.] Clayton, K M, 1953.
[Formerly known as THRUSSINGTON TILL - Old code was also THT.] Not Entered
[Otherwise known as LADIES TENT TILL MEMBER OF THE BERRIDALE FORMATION.] Hall and Whittington, 1989. May be equivalent, but some lithological differences apparent.
[Formerly known as LOCAL GROUND MORAINE.] Crampton and Carruthers, 1914.
[Formerly known as THURSTASTON SANDSTONE MEMBER.] Name first defined by Thompson, D B, 1970a, where the base of the Member was taken as the base of the Helsby Sandstone Formation. The current definition places the Member within the Wilmslow Sandstone Formation.
[Formerly known as UPPER MOTTLED SANDSTONE.] Included in the Upper Mottled Sandstone by Wedd, C B et al, 1923, in previous geological survey.
[Formerly known as TARN HOWS FORMATION - Old code was also THW.] Lithological epithet added [D Millward] 06/03/2003.
[Formerly known as CARBONIFEROUS LIMESTONE (SERIES).] Not Entered
[Otherwise known as LYONCROSS LIMESTONE.] Not Entered
[Otherwise known as P.] British Coal Index.
[Otherwise known as WIDDRINGTON YARD COAL.] GIVENS COAL
[Formerly known as TILLYBRACHTY SANDSTONES - Old code was also TIS.] Wilson and Hinxman, 1890, p.27.
[Formerly known as LONG QUARRY SANDSTONE FORMATION - Old code was LOQU.] Former Lexicon entry superseded and made Obsolete.
[Formerly known as CHICKSGROVE LIMESTONE MEMBER.] This was part of the current Tisbury Member: "Chicksgrove Limestone Member and Tisbury Glauconitic Member and Ragstones" of Wimbledon and Cope, 1978; Wimbledon, 1980.
[Formerly known as CHICKSGROVE MEMBER.] This was part of the current Tisbury Member: "Chicksgrove Member and Tisbury Member and Ragstone/Ragstones/Ragstone Beds" of Wimbledon, 1976.
[Formerly known as LOWER BUILDING STONES AND RAGSTONE.] Woodward, 1895.
[Formerly known as RAGSTONES.] This was part of the current Tisbury Member: "Chicksgrove Limestone Member and Tisbury Glauconitic Member and Ragstones" of Wimbledon and Cope, 1978; Wimbledon, 1980.
[Formerly known as TISBURY FREESTONE AND RAGSTONE.] Blake, 1880.
[Formerly known as TISBURY GLAUCONITIC MEMBER.] This was part of the current Tisbury Member: "Chicksgrove Limestone Member and Tisbury Glauconitic Member and Ragstones" of Wimbledon and Cope, 1978; Wimbledon, 1980.
[Formerly known as FARLEY MEMBER.] Bassett, M G, et al, 1975, p.4. Include the Tickwood Member within the Coalbrookdale Formation, under the name 'Farley Member'
[Formerly known as TICKWOOD BEDS - Old code was also TKB.] Hamblin, R J O and Coppack, B C, 1995
[Formerly known as THRELKELD MEMBER.] Of Bowen, et al., 1999.
[Formerly known as BLACK LIMESTONE.] Not Entered
[Formerly known as TEILIA BEDS - Old code was also TLB.] Not Entered
[Otherwise known as TOWN LANE MINE COAL.] Not Entered
[Formerly known as TOWN LANE MINE.] Not Entered
[Formerly known as BUCKHOLME FORMATION.] Previously included as the northern part of the Buckholme Formation (Kassi and Weir, 1993).
[Formerly known as GALA 7.] Previously included as part of the Gala Group (Gala 7) (British Geological Survey, 1996).
[Formerly known as GARNETIFEROUS GROUP.] Local term used by Walton, 1955.
[Formerly known as QUEENSBERRY FORMATION.] Previously included as part of the Queensberry Formation (Webb et al., 1993).
[Formerly known as QUEENSBERRY GRIT.] reviously included as part of the Queensberry Grit (Peach and Horne, 1899).
[Formerly known as MODESTUS SHALES.] Lapworth, 1882. Quarterly Journal of the Geological Society, Vol.38, p.537-666.
[Formerly known as TILE HILL MARL GROUP.] Shotton, 1929.
[Formerly known as MUDSTONES OF TARN MOOR.] Jackson, 1978.
[Formerly known as TARN MOOR MUDSTONE.] Wadge, Nutt and Skevington, 1972.
[Formerly known as TARN MOOR MUDSTONE FORMATION.] Moseley, 1984.
[Formerly known as TARN MOOR MUDSTONES.] Wadge, 1978.
[Formerly known as TRUSHAM FORMATION.] Chesher, 1968.
[Formerly known as TRUSHAM SHALE.] Selwood et al. 1984.
[Formerly known as TRUSHAM SHALE FORMATION - Old code was TMSH.] Not Entered
[Formerly known as THIRLMERE MEMBER - Old code was also TMR.] Lithological epithet added [D Millward] 06/03/2003.
[Formerly known as THIRLMERE RHYOLITE.] (Hartley, J J, 1941).
[Formerly known as TORNMITCHEL CONGLOMERATE.] Not Entered
[Formerly known as TRESGLEN BEDS - Old code was also TNB.] Not Entered
[Formerly known as TARN CRAGS MEMBER - Old code was also TNCR.] Lithological epithet added [D Millburn] 06/03/2003.
[Otherwise known as CRACKERS COAL.]
[Otherwise known as NEW COAL.]
[Otherwise known as TOP NEDDY MINE COAL.] Not Entered
[Formerly known as TOP NEDDY MINE.] Not Entered
[Otherwise known as TINCORN HILL INTRUSION.] The Intrusion [TNHL] is now regarded as an isolated part of the larger Distinkhorn Pluton [DISK]
[Formerly known as LOWER BROWN LIMESTONE - Old code was LBRL.] (pars) Morton, 1870, 1878.
[Formerly known as GREAT WHINSCALE MEMBER - Old code was GWM.] Not Entered
[Formerly known as MIDDLE PART OF SANDEND GROUP.] Read, H H, 1923.
[Formerly known as WINDERMERE GROUP.] Previously considered part of the former Windermere Group.
[Formerly known as TORRE BRECCIA FORMATION - Old code was also TOBR.] Name revised to Torbay Breccia.
[Formerly known as TOP VEIN.] Not Entered
[Otherwise known as CORBRIDGE LIMESTONE.] Probable correlative.
[Formerly known as TOWN END FARM MEMBER - Old code was also TOEF.] Not Entered
[Formerly known as FALSE BEDDED LIMESTONE.] Blake and Hudleston, 1877.
[Formerly known as MARNHULL AND TODBER FREESTONE.] Arkell, 1933.
[Formerly known as UPPER KINNINY LIMESTONE - Old code was URKI.] As a redundant, full equivalent of TOHO, see Browne, M A E et al. 1999, table 4, p16.
[Formerly known as TOMINTOUL CONGLOMERATE.] Possibly incorporating at least in part.
[Formerly known as TOMINTOUL SANDSTONE.] Possibly incorporating at least in part.
[Otherwise known as TOP FURNACE MINE COAL.] Not Entered
[Formerly known as TOP FURNACE MINE.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 1 (TORRIDGE) - Old code was also TOR1.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 2 (TORRIDGE) - Old code was also TOR2.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 3 (TORRIDGE) - Old code was also TOR3.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 4 (TORRIDGE) - Old code was also TOR4.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 5 (TORRIDGE) - Old code was also TOR5.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 6 (TORRIDGE) - Old code was also TOR6.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 7 (TORRIDGE) - Old code was also TOR7.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 8 (TORRIDGE) - Old code was also TOR8.] Not Entered
[Formerly known as RIVER TERRACE DEPOSITS, 9 (TORRIDGE) - Old code was also TOR9.] Not Entered
[Otherwise known as TOTTENHILL MEMBER.] Bowen, 1999.
[Formerly known as TOTTENHILL GRAVELS - Old code was also TOTL.] Gallois, 1994.
[Formerly known as TOP ANHYDRITE - Old code was also TPA.] Not Entered
[Formerly known as TYRONE BASIC PLUTONIC COMPLEX (OBSOLETE NAME AND CODE: USE TPG) - Old code was DATY.] (GSNI, 1983)
[Formerly known as TYRONE IGNEOUS SERIES (PLUTONIC ROCKS).] (Hartley, GSNI, 1933)
[Formerly known as TAPLOW TERRACE.] Not Entered
[Formerly known as EUMORPHOCERAS PSEUDOBILINGUE MARINE BAND.] Not Entered
[Formerly known as DINGLE BEDS.] Geological Survey of Northern Ireland. 1882.
[Formerly known as SHANMAGHRY SANDSTONE FORMATION - Old code was SMSF.] (Now restricted to Devonian sediments). Geological Survey of Northern Ireland. 1982.
[Formerly known as GLEN TANAR QUARTZITE AND MICA SCHIST GROUP.] Read, H H, 1928.
[Formerly known as TARFSIDE GROUP.] Harte, B, 1979.
[Formerly known as DENSTONE FORMATION - Old code was DST.] Charsley, 1982.
[Formerly known as HOLLING MEMBER.] Barclay et al., 1997.
[Formerly known as KEUPER WATERSTONES - Old code was KW.] (approx. equivalent to). Hull, 1869; Lamplugh et al., 1908; Smith, 1912; Swinnerton, 1918; Poole and Whiteman, 1966; Evans et al; 1968.
[Formerly known as MAER FORMATION - Old code was MER.] Rees and Wilson, 1998.
[Formerly known as RETFORD FORMATION PLUS COLWICK FORMATION.] Warrington et al., 1980
[Formerly known as SNEINTON FORMATION - Old code was SNT.] Charsley et al., 1990., Berridge et al., 1999.
[Formerly known as WATERSTONES.] (approx. equivalent to). Hull, 1869; Strahan, 1882; Gibson, 1925.
[Formerly known as WATERSTONES GROUP.] (approx. equivalent to). Wills, 1970.
[Formerly known as WOODTHORPE FORMATION PLUS COLWICK FORMATION.] Warrington et al., 1980.
[Formerly known as WOODTHORPE FORMATION PLUS WATERSTONES FORMATION.] Elliott, 1961.
[Formerly known as PLYMPTON SLATE FORMATION.] (Chandler, P and McCall, G J H, 1985. Part of the Plympton Slate Formation).
[Formerly known as PURPLE AND GREEN SLATES.] (used uncapitalized by Ussher, W A E, 1907, as part of Upper Devonian. Used with initial capitals by Burton, C J and Tanner, P W G, 1986).
[Otherwise known as BOTTOM WIDDRINGTON MAIN COAL.] Not Entered
[Otherwise known as R.] British Coal Index.
[Formerly known as TORQUAY LIMESTONES - Old code was also TQL.] Not Entered
[Formerly known as TRABOYACK DIVISION - Old code was also TRA.] Not Entered
[Formerly known as TRICHRUG BEDS - Old code was also TRB.] Not Entered
[Otherwise known as COCKLESHELL COAL.] Name used in adjoining parts of the Derbyshire Coalfield.
[Formerly known as PEAT.] British Geological Survey.
[Formerly known as TREGARON FORMATION.] in the different sense of Bowen, 1999.
[Formerly known as TREFFGARNE ANDESITE GROUP.] Not Entered
[Formerly known as TREFFGARNE ANDESITIC SERIES.] Not Entered
[Formerly known as TREFFGARNE VOLCANIC GROUP.] Not Entered
[Formerly known as TREFFGARNE VOLCANIC SERIES.] Not Entered
[Formerly known as TRENCHARD GROUP - Old code was also TRGP.] Originally defined by (Trotter, 1942), which included all 'Coal Measures' strata below the Coleford High Delf.
[Formerly known as TRIMINGHAM SAND MEMBER - Old code was also TRIM.] Not Entered
[Formerly known as KENSWORTH NODULAR CHALK MEMBER.] Forms part of the Kensworth Nodular Chalk Member.
[Otherwise known as TRENCHERBONE MINE COAL.] Not Entered
[Otherwise known as WIGAN SIX FOOT COAL.] Not Entered
[Formerly known as TRENCHERBONE MINE - Old code was also TRMC.] Not Entered
[Formerly known as TRESHAM ROCK.] Arkell and Donovan, 1952, see also Cave, 1977
[Formerly known as TRENT CATCHMENTS SUBGROUP..] McMillan et al., 2005.
[Formerly known as TEES LAMINATED CLAYS.] Agar, 1954.
[Formerly known as TON SILTSTONE - Old code was also TSF.] Not Entered
[Formerly known as TINTERN SANDSTONE - Old code was also TSG.] Not Entered
[Formerly known as TINTERN SANDSTONE GROUP - Old code was also TSG.] Not Entered
[Formerly known as TEMESIDE BEDS.] Ball, 1951
[Formerly known as TEIRW BEDS - Old code was TWB.] Not Entered
[Formerly known as TREDORN BEDS.] Parkinson, J, 1903. On the geology of the Tintagel and Davidstow district. Quarterly Journal of the Geological Society, Vol.59, 408-428.
[Formerly known as TREDORN PHYLLITES.] Dewey, H, 1909. On the overthrusts at Tintagel (north Cornwall). Quarterly Journal of the Geological Society.
[Formerly known as LOWER LONDON TERTIARIES - Old code was LLTE.] Not Entered
[Formerly known as TRYSULL MEMBER.] of the Seisdon Formation (Maddy in Bowen, 1999).
[Otherwise known as 36 YARDS BAND COAL.] Not Entered
[Formerly known as THROUGHAM TILESTONES FORMATION - Old code was also TT.] Mispelling.
[Formerly known as THREE TARNS MEMBER - Old code was also TTA.] BGS Lexicon entry lacked lithological epithet.
[Otherwise known as LOW MAIN COAL.] Not Entered
[Formerly known as TRITON ANHYDRITIC FORMATION - Old code was also TTHY.] Not Entered
[Formerly known as MOINE SERIES.] Included among the "schists" in the Moine "Series".
[Formerly known as CAST BED.] Equivalent to the Cast Bed of the basinal successions in the Southern Province
[Formerly known as CHILTON STONE.] Name given for the Abingdon Sheet (253)
[Formerly known as MONZIE LIMESTONE AND SCHIST FORMATION.] TULS is probably equivalent to the upper part of this unit (BGS sheet 55E; Smith and Harris, 1976).
[Formerly known as STRATH FIONAN DARK SCHIST AND LIMESTONE FORMATION.] TULS was formerly included in this formation (Treagus, J E and King, G, 1978).
[Formerly known as TUMMEL QUARTZITE.] (Harris, A L, et al, 1994. Stephenson, D and Gould, D, 1995).
[Formerly known as TUMMEL QUARTZITES WITH LAMINATED PSAMMITES.] (Thomas, P R, 1980).
[Otherwise known as TWECHAR UPPER COAL.] This is the correct spelling for future use.
[Formerly known as TUMMEL PSAMMITE.] (Thomas, P R, 1980).
[Formerly known as CRINAN SUBGROUP CAENLOCHAN SCHIST.] (In part, Sheet 65W. Upton, 1986).
[Formerly known as KILLIECRANKIE SCHIST.] (In part. Bailey, 1925).
[Formerly known as LOCHABER SUBGROUP BADDOCH BURN PELITE.] (In part, Sheet 65W. Upton, 1986).
[Formerly known as VOLCANIC SERIES.] Parkinson, 1903.
[Formerly known as TYRONE IGNEOUS SERIES.] (Hartley, 1933).
[Formerly known as PASSAGE GROUP LAVAS.] Not Entered
[Formerly known as TROON VOLCANIC FORMATION - Old code was also TVL.] Not Entered
[Formerly known as C2 AND C2-3 SLATE.] Institute of Geological Sciences Sheets 335 and 336, 1907.
[Formerly known as GREY SLATE.] Gauss, G A, 1966.
[Formerly known as LIGHT GREY SLATE.] House, M R, 1961.
[Formerly known as CANN WOOD SLATE FORMATION.] Chandler, P and McCall, G J H, 1985.
[Formerly known as DELABOLE SLATES - Old code was DLBS.] Dewey, H, 1909.
[Formerly known as HALWELL COTTAGE BEDS.] Parkinson, J, 1903.
[Formerly known as KATE BROOK SLATE - Old code was KBSL.] Selwood, E B, et al, 1984.
[Formerly known as KATE BROOK SUCCESSION.] Waters, R A, 1970.
[Formerly known as PENPETHY BEDS.] Parkinson, J, 1903.
[Formerly known as TREDORN BEDS.] Parkinson, J, 1903.
[Formerly known as TREDORN PHYLLITES.] Dewey, H, 1909.
[Formerly known as WOOLGARDEN PHYLLITE.] Dewey, H, 1909.
[Otherwise known as POSSIL FIRST COAL.] Not Entered
[Formerly known as TOWER WOOD GRAVEL FORMATION - Old code was also TWGR.] Rank reverted to earlier Member statuse on recommendation of R J O Hamblin.
[Formerly known as TWYNING FORMATION.] Not Entered
[Formerly known as CRICHOPE SANDSTONE MEMBER - Old code was CPE.] Not Entered
[Formerly known as PASSAGE GROUP (UNDIVIDED) - Old code was PGP.] Not Entered
[Formerly known as BASAL GRIT.] Not Entered
[Formerly known as BASAL GRITS.] Not Entered
[Formerly known as BASAL GRITS GROUP.] Not Entered
[Otherwise known as LOWER TUNBRIDGE WELLS SAND FORMATIONS.] Not Entered
[Formerly known as TUNBRIDGE WELLS SAND - Old code was also TWS.] Not Entered
[Formerly known as JOHNSHAVEN FORMATION.] (Armstrong, M and Paterson, I B, 1970. Included in the Johnshaven Formation, which is not used in this district).
[Formerly known as THREE WELLS SANDSTONE FORMATION - Old code was also TWSA.] Not Entered
[Formerly known as TOWNSEND TUFF MEMBER - Old code was also TWT.] Not Entered
[Otherwise known as PART OF WHEATWORTH COAL (WWC).] Not Entered
[Formerly known as TAYNTON STONE.] Woodward, H B, 1894, p.306.
[Otherwise known as TOP YARD MINE COAL.] Not Entered
[Formerly known as TOP YARD MINE.] Not Entered
[Otherwise known as HAFOTTY FORMATION.] Lateral equivalent on the Harlech (135) sheet.
[Formerly known as MULFRAN BEDS.] Nicholas, 1915.
[Otherwise known as PILKIN COAL.] Not Entered
[Formerly known as TYN-Y-GLYN MUDSTONE MEMBER - Old code was also TYG.] Alder, K E. 1976. Ph.D.Thesis, University of Cambridge.
[Formerly known as LLYN CAU MUDSTONES.] Not Entered
[Formerly known as LLYN-Y-GADAIR MUDSTONES.] Not Entered
[Formerly known as TY'R GAWEN FORMATION - Old code was also TYGN.] Mudstone epithet added to conform with usage in BGS Memoir for Sheet 149 and the Startigraphical Framework Report (Rushton and Howells, 1998).
[Otherwise known as ACRE LIMESTONE.] Lateral correlative in Northumberland.
[Otherwise known as THIRD LIMESTONE.] In former use north of the Lake District.
[Formerly known as ACRE LIMESTONE.] In Northumberland.
[Formerly known as THIRD LIMESTONE.] North of the Lake District.
[Formerly known as THREE YARD LIMESTONE - Old code was also TYL.] Not Entered
[Otherwise known as LAWSTON LINN COAL GROUP.] Basal part locally named, Peach and Horne,1903.
[Otherwise known as LOWER LIMESTONE GROUP.] Upper part.
[Otherwise known as SCREMERSTON COAL GROUP.] Basal part locally named, Nairn, 1956.
[Formerly known as LOWER LIDDESDALE GROUP (PART) AND UPPER BORDER GROUP.] Lumsden et al. 1968.
[Otherwise known as BALLAGAN FORMATION.] The Tyningham Formation is now subsumed within the Ballagan Formation, BGN, as described by Browne et al, 1996.
[Formerly known as CEMENTSTONE GROUP - Old code was CMST.] Not Entered
[Otherwise known as DURHAM MEMBER.] Of the Wear Formation of Thomas, 1999.
[Formerly known as DURHAM COMPLEX.] Francis, 1970.
[Formerly known as MIDDLE SANDS, GRAVELS AND CLAYS.] Not Entered
[Formerly known as TYNE-WEAR COMPLEX.] Smith, 1994.
[Formerly known as SUBSUMES RIVER TERRACE DEPOSITS, ALLUVIAL FAN DEPOSITS, HEAD, ALLUVIUM AND LACUSTRINE DEPOSITS.] British Geological Survey
[Otherwise known as URICONIAN VOLCANIC GROUP.] Modern terminology includes lithological epithet and is applied to the same rocks that were previously termed "Uriconian Group".
[Formerly known as URICONIAN - Old code was also U.] Not Entered
[Formerly known as UPPER ABDON LIMESTONE - Old code was also UAL.] Not Entered
[Formerly known as CRAIG-Y-LLAM GROUP - Old code was CYLF.] Not Entered
[Formerly known as UAMH BHEAG CONGLOMERATE - Old code was also UBCO.] Not Entered
[Formerly known as UAMH BHEAG CONGLOMERATE FORMATION - Old code was also UBCO.] Not Entered
[Formerly known as UPPER BAILEY HILL BEDS - Old code was also UBH.] Not Entered
[Otherwise known as TOP BENCH COAL.] It is not clear whether this seam is a synonym of the Upper Bench or whether the Top Bench is a local term describing the upper leaf of the Bench Coal (where split), with the split seam overlain by the Upper Bench at some localities.
[Otherwise known as SCREMERSTON COAL GROUP.] Approximately equivalent to Upper Border Group.
[Formerly known as BORDER GROUP, UPPER (OBSOLETE CODE: USE UBO) - Old code was UBG.] Not Entered
[Otherwise known as CENRHOS COAL.] May be equivalent?
[Formerly known as PEN-Y-GADER GROUP.] Not Entered
[Formerly known as FLEET MEMBER.] Page, 1989. See Supplementary Information Description.
[Formerly known as THURSO GROUP.] Rocks formerly attributed to the Thurso Group are no considered as part of the Upper Caithness Sandstone Subgroup (C A Auton, 17/12/2004)
[Formerly known as UPPER CAITHNESS FLAGSTONE FORMATION - Old code was also UCF.] Not Entered
[Formerly known as UPPER CAITHNESS FLAGSTONE GROUP - Old code was also UCF.] Not Entered
[Formerly known as UPPER CALCAREOUS GRIT - Old code was also UCG.] Not Entered
[Formerly known as CHALK, UNDIVIDED, UPPER (NOW UPPER CHALK FORMATION) - Old code was also UCK.] Not Entered
[Formerly known as UPPER COMLEY LIMESTONE AND SANDSTONE.] Not Entered
[Formerly known as UPPER COMLEY SERIES.] Not Entered
[Formerly known as BARREN RED MEASURES.] Not Entered
[Formerly known as UPPER COAL MEASURES (SCOTLAND) - Old code was also UCMS.] Cosmetic reordering of the name to match formats used in the southern UK.
[Formerly known as UPPER COMLEY GROUP - Old code was UCMG.] Upper Comley Sandstone Formation is the preferred synonym. See "Revision" note for Upper Comley Group (UCMG)
[Formerly known as UPPER COMLEY SANDSTONE.] Not Entered
[Formerly known as UPPER COMLEY SERIES.] Greig et al., 1968.
[Formerly known as UPPER CULM - Old code was also UCU.] Not Entered
[Formerly known as UPPER TUFF BED.] (Davies, 1936. Quarterly Journal of the Geological Society, Vol.92, 62-90).
[Formerly known as UPPER DEVIL'S BRIDGE FORMATION - Old code was also UDB.] As a subdivision of the Devil's Bridge Formation, the former rank was inappropriate. The term is now retained with informal Member status.
[Otherwise known as BANKNOCK SPLINT COAL.] Not Entered
[Formerly known as PENSTON SPLINT COAL.] Formerly applied in the Penston and Winton Hill areas.
[Otherwise known as CROMHALL SANDSTONE FORMATION.] Currently the "Upper Drybrook Sandstone" is condsidered as a leaf of the Cromhall Sandstone Formation, probably of Member Rank, but no new name has yet been proposed [12/03/2003].
[Formerly known as MIDDLE OLD RED SANDSTONE CONGLOMERATE.] Not Entered
[Formerly known as ORCADIAN OLD RED CONGLOMERATE.] Not Entered
[Formerly known as LATE-GLACIAL RAISED BEACH AND ESTUARINE ALLUVIUM.] Not Entered
[Formerly known as SPYNIE CLAY FORMATION - Old code was also SPYCL.] Rank revised to Member and Parent changed from British Coastal Deposits Group to Errol Clay Formation.
[Formerly known as COMBINED OOLITE MARL AND UPPER FREESTONE.] Buckman, J, 1842; Hull, E, 1857. These are combined because they are interdigitating facies; the 'Oolite Marl' commonly occurs as lenses within 'Upper Freestone', see Mudge, D C, 1978a.