OR/15/013 Appendix 1 - Chalk marker-beds and modelling codes

Woods, M A, Newell, A J, Haslam, R, Farrant, A R and Smith, H. 2015. A physical property model of the Chalk of southern England. British Geological Survey Internal Report, OR/15/013.

Formation Code	Member Code	Bed Code	Primary Marker- Bed Name represented by coding	Surfaces equivalent to Primary Marker- Bed with same code
PCK	PACK	OPHG	Base Upper Overstrand Marl	top Portsdown Chalk
PCK	BEECK	UNHG	top Un-named hardground (sponge bed in Trunch BH) at junction of Beeston and Paramoudra Chalk
PCK	WECK	CSP	top Catton Sponge Bed (Hardground II) at top of Weybourne Chalk
PCK		SIMA	base Shide Marl
PCK		FAMA	base Farlington Marls (pair)	top G. quadrata Zone
PCK		BDMA	base Bedhampton Marls group
PCK		SCMA	base Scratchell's Marls group
PCK		POMA	base Portsdown Marl 1	Base Redoubt Beds
CUCK		WHFL	base Whitecliff Flint
CUCK		WHMA	base Whitecliff Marls	Base Whitecliff Beds
CUCK		CBFL	base Cotes Bottom Flint
CUCK		CMFL	base Charmandean Flint
CUCK		LM2	base Lancing Marl 2
CUCK		LM1	base Lancing Marl 1
CUCK		LAFL	base Lancing Flint	Base Sompting Beds
NCK		PBMA	top Pepperbox Marls (Highest seam)	top Newham Chalk Formation
NCK		CSMA	top Castle Hill Marls (highest seam)	top Newham Chalk Formation (in slumped sections lacking Pepperbox Marls)/base Castle Hill Beds
NCK		TEMA3	top Telscombe Marl 3	top O. pilula Zone
NCK		TEMA 1	base Telscombe Marl 1
NCK		MCMA	base Meeching Marl pair	base Bastion Steps Beds
NCK		NME	base Meeching Beds	base Peacehaven Marl
NCK		ONMA	base Old Nore Marl	Base Peacehaven Beds
NCK		FBMA3	base Friar's Bay Marl 3	top U. anglicus Zone
NCK		FBMA1	base Friar's Bay Marl 1	top M. testudinarius/top Santonian
NCK		NON	base Old Nore Beds	base Brighton Marl
NCK		HBFL	base Hawks Brow Flint	top U. socialis Zone
NCK		BUMA1	base Buckle Marl 1	top Peake's Sponge Bed/top Micraster coranguinum Zone/top Seaford Chalk Formation/base Splash Point Beds
SECK		REB	top Rowe's Echinoid Band
SECK	BSP	top Barrois Sponge Bed	top Clandon Hardground
SECK		STRK	top Stockbridge Rock Member
SECK		RBFL	base Rough Brow Flint	Whitaker's 3" Flint
SECK		FHFL	base Flat Hill Flint	Bedwell's Columnar Flint/Cladoceramus 2 Event
SECK		MDFL	base Michel Dean Flint	Pegwell Inoceramid Band/Cladoceramus 1 Event/top Coniacian/base Haven Brow Beds
SECK		SSFL	base Seven Sisters Flint	Oldstairs Bay Flint/East Cliff Semitabular Flint/base Cuckmere Beds
SECK		BTMA	base Belle Tout Marls group	base Otty Bottom Marls group
SECK		HPMA	base Hope Point Marls group
SECK	SHMA2	base Shoreham Marl 2	East Cliff Marl 2/top Rochester Hardground/top M. cortestudinarium Zone/top Lewes Nodular Chalk Formation/base Belle Tout Beds
LECH		LPHG	top Light Point Hardground	?top Corn Hill Hardground/base Beachy Head Sponge Beds
LECH		BEHG	top Beeding Hardground	?top Corn Hill Hardground 3/base Light Point Beds
LECH		TR	top Top Rock
LECH		CKR	top Chalk Rock
LECH		HGHG	top Hope Gap Hardground	top Pines Garden Hardground/base Beeding Beds
LECH		CLHG	top Cliffe hardground	top Parlour Hardground/top Turonian/base Hope Gap Beds/base Coniacian
LECH		LECF	base Cliffe Beds
LECH	NAMA	base Navigation Marls	base Ness Point Marls/base Beer Head Marl
LECK		NAHG	top Navigation Hardground	top South Foreland Hardground/top Plesiocorys (Sternotaxis) plana Zone
LECH		CCFL	base Cuilfail Zoophycos
LECH		LENA	base Navigation Beds
LECH		LEMA	base Lewes Marl	base West Tofts Marl/base South Street Beds
LECH		HWHG	top Hitchwood Hardground	top Lewes Tubular Flints
LECH		BBFL	base Breaky Bottom Flint	base Annis Knob Flint
LECH		GGMA	base Grimes Graves Marl
LECH		BRMA1	base Bridgewick Marl 1	base Kingston Beds; base Grimes Graves Marl
LECH		BRFL	base Bridgewick Flints	base Brandon Flint Series/top Terebratulina lata Zone
LECH		FFHG	top Fognam Farm Hardground
LECH		CAMA	base Caburn Marl	base Crab Bay Marl/base Twin Marl/base Ringmer Beds
LECH		SUMA1	base Southerham Marl 1	base Fognam Marl/base ?Langdon Bay Marl 1/base Mount Ephraim Marl/base Caburn Beds
LECH		PHG	top Pewsey Hardground	top Spurious Chalk Rock
LECH		OHG	top Ogbourne Hardground
NPCH		GLMA2	base Glynde Marl 2	base Pilgrim's Walk Marl (lowest marl in Pilgrim's Walk Group)
NPCH		GLMA1	base Glynde Marl 1	base Glynde Beds
NPCH		NPCK	top New Pit Chalk Formation	top Beer Roads Flinty Chalk Member
NPCH		NPMA3	base New Pit Marl 3	? base Pounds Pool Grey Bed
NPCH		NPMA2	base New Pit Marl 2	? base Rowe's 4-ft Band
NPCH		NPMA1	base New Pit Marl 1	? base Rowe's 2-ft Band
NPCH		MSMA	base Malling Street Marls	Round Down Marl
HCK		GGMM	base Gun Gardens Main Marl	base Lulworth Marl/top Mytiloides spp. Zone/top Holywell Nodular Chalk/top Connett's Hole Member
HCK		MEMA4	base Meads Marl 4	approximate top Cenomanian
HCK		MLR	top Melbourn Rock
HCK		PLNM	top Plenus Marls
HCK		SPME	Sub-Plenus Marls erosion surface	top Zig Zag Chalk Formation/top Calycoceras guerangeri Zone/top Beer Head Limestone Formation
ZZCH		JB7	top Jukes-Browne Bed 7	top Nettleton Stone
ZZCH		PMA	base Pycnodonte Marl
ZZCH		CASB	base Cast Bed
ZZCH		TELM	base Tenuis Limestone
ZZCH		STST	Sub-Totternhoe Stone erosion surface
WMCH		TWMCH	top West Melbury Marly Chalk Formation
WMCH		DLM	base Dixoni Limestone	base M6 Limestone
WMCH		M3LM	base Doolittle Limestone	base M3 Limestone/ top Sharpeiceras schlueteri Subzone
WMCH		GLML	top Glauconitic Marl	Top Melbury Sandstone/top Cambridge Greensand
		SCG	Sub-Chalk Group erosion surface