Chalk of the UK - Appendix 1:BGS Geological Sheets areas in England and Scotland showing Upper Cretaceous Strata

This list encompasses all of the Geological Survey Sheets within Great Britain with units of the Upper Cretaceous delimited. The ‘date’ indicates the published date of the latest edition, though in many cases the date of survey is much earlier. Provisional editions (P) are based principally on a desk revision incorporating available data. The Chalk nomenclature schemes used to divide the rocks are given as follows:- Scotland Traditional (ST); England and Wales Traditional (EWT); England and Wales Revised (EWR); England and Wales fully compliant with agreed terminology (EWFC); [Northern Province (NP); Southern Province (SP)]. An indication of the upgrading of terminology required to conform to the framework herein is indicated in the notes column. OOP indicates sheets out of print.

Terminological schemes used on 1:50 000 Geological Maps in Scotland

Sheet Name	Sheet No.	Date	Scheme used	Notes
Iona	S43	1954	ST	Minor name revision
Staffa (P)	S43N	1996	ST	Minor name revision
Ross of Mull	S43S	1999	ST	Minor name revision
Eastern Mull	S44W/pt.44E	1992	ST	Reprinted without revision
Lismore	S44E	1992	ST	Reprinted without revision
Ardnamurchan	S52W	1977	ST	Minor name revision
Strontian	S52E	1977	ST	Minor name revision
Rum	S60	1994	ST	Minor name revision
Minginish	S70	2001	ST	Minor name revision
Minginish	S70	1964	ST	Minor name revision
Broadford	S71W	1976	ST	Minor name revision

Terminological schemes used on 1:50 000 Geological Maps in England

Sheet Name	Sheet No.	Date	Scheme used	Notes
Pickering (P)	53	2001	EWRNP	Minor revision required
Scarborough (P)	54	1998	EWRNP	Minor revision required
Flamborough & Bridlington (P)	55/65	1986	EWRNP	Minor revision required
York	63	1983	EWT
Great Driffield (P)	64	1993	EWRNP	Minor revision required
Selby	71	1973	EWT
Beverley (P)	72	1995	EWRNP	Minor revision required
Hornsea (P)	73	1998	EWRNP	Minor revision required
Kingston upon Hull	80	1983	EWRNP	Minor revision required
Patrington	81/82 pt 90	1991	EWRNP	Minor revision required
Brigg	89	1982	EWRNP	Minor revision required
Grimsby	90/91	1990	EWRNP	Minor revision required
Louth (P)	103	1999	EWRNP	Minor revision required
Mablethorpe (P)	104	1996	EWRNP	Minor revision required
Horncastle (P)	115	1995	EWRNP	Minor revision required
Skegness (P)	116	1996	EWRNP	Minor revision required
The Wash	129	1997	EWT	Revision required
Wells-next-the-Sea	130	OOP	EWT
Cromer	131	2003	EWFCSP	Compliant to Formation
Sheet Name	Sheet No.	Date	Scheme used	Notes
Mundelsey & North Walsham	132 & 148	1998	EWT concealed	Nomenclature revision required
King’s Lynn & The Wash	145/pt 129	1978	EWT	Nomenclature revision required
Fakenham (P)	146	1999	EWRSP	Minor revision required
Aylesham	147	OOP	EWT
Wisbech	159	1995	EWT	Nomenclature revision required
Swaffham (P)	160	1998	EWRSP	Minor revision required
Norwich	161	1975	EWT	Nomenclature revision required.
Great Yarmouth	162	1990	EWT concealed	Nomenclature revision required
Ely	173	1980	EWT	Nomenclature revision required
Thetford	174	OOP	EWT
Diss	175	1989	EWT	Nomenclature revision required
Lowestoft	176	1996	EWFCSP concealed	Compliant at Group level
Huntingdon	187	1975	EWT	Nomenclature revision required
Cambridge	188	1981	EWT	Nomenclature revision required
Bury St. Edmunds	189	1982	EWT	Nomenclature revision required
Eye (P)	190	1995	EWT	Nomenclature revision required
Saxmundham	191	1996	EWT concealed	Nomenclature revision required
Biggleswade	204	2001	EWRSP	Minor revision required
Saffron Walden	205	2002	EWRSP	Minor revision required
Sudbury	206	1991	EWT	Nomenclature revision required
Ipswich (P)	207	1990	EWT concealed
Woodbridge & Felixstowe	208 & 225	2001	EWSP	Minor revision required
Leighton Buzzard	220	1992	EWT	Nomenclature revision required
Hitchin	221	1995	EWT	Nomenclature revision required
Great Dunmow	222	1990	EWT	Minor revision required
Braintree	223	1982	EWT concealed	Minor revision required
Colchester	224	OOP	EWT concealed	Minor revision required
Thame	237	1994	EWT	Nomenclature revision required
Aylesbury	238	1923	EWT	Nomenclature revision required.
Hertford	239	1978	EWT	Nomenclature revision required.
Epping	240	1981	EWT concealed	Nomenclature revision required
Chelmsford	241	1975	EWT concealed	Nomenclature revision required
Swindon	252	1974	EWT	Nomenclature revision required
Abingdon	253	1971	EWT	Nomenclature revision required
Henley-on-Thames	254	1980	EWT	Nomenclature revision required
Beaconsfield	255	1974*	EWRSP	*New sheet in press, minor revision
North London	256	1994	EWT	Nomenclature revision required
Romford	257	1996	EWT concealed	Nomenclature revision required
Southend & Foulness	258/259	1976	EWT concealed	Nomenclature revision required
Marlborough	266	1974	EWT	Nomenclature revision required.
Newbury (Hungerford)	267	1947*	EWT	Nomenclature revision required. *New sheet in press 2005 (EWFCSP)
Reading	268	2000	EWRSP	Minor revision required
Windsor	269	1999	EWRSP	Nomenclature revision required
South London	270	1998	EWT	Nomenclature revision required
Dartford	271	1998	EWRSP	Minor revision required
Sheet Name	Sheet No.	Date	Scheme used	Notes
Chatham	272	1977	EWT	Nomenclature revision required.
Faversham	273	1974	EWT	Nomenclature revision required.
Ramsgate	274	1980	EWT	Nomenclature revision required
Frome	281	2001	EWRSP	Minor revision required
Devizes	282	1959	EWT	Nomenclature revision required.
Andover	283	1975	EWT	Nomenclature revision required.
Basingstoke	284	1978	EWT	Nomenclature revision required.
Guildford	285	2001	EWRSP	minor revision required
Reigate	286	1978*	EWT	*New sheet in press, minor revision
Sevenoaks	287	1971	EWT
Maidstone	288	1976	EWT	Nomenclature revision required
Canterbury	289	1982	EWT	Nomenclature revision required
Dover	290	1977	EWT	Nomenclature revision required
Wincanton	297	1996	EWRSP	Minor revision required
Salisbury	298	1976*	EWT	Nomenclature revision required. *New sheet in press 2005 (EWFCSP)
Winchester	299	2003	EWFCSP	*New sheet in press (EWFCSP)
Alresford	300	2000	EWRSP	Minor revision required
Folkestone & Dover	305 &306	1974	EWT	Nomenclature revision required
Wellington	311	1976	EWT	Nomenclature revision required.
Yeovil	312	1958	EWT	Nomenclature revision required
Shaftsbury	313	1994	EWRSP	Minor revision required
Ringwood	314	1976*	EWT	*New sheet in press 2004 (EWFCSP)
Southampton	315	1987	EWT	Nomenclature revision required
Fareham	316	1998	EWRSP	Minor revision required
Chichester & Bognor	317 & 332	1996	EWRSP	Minor revision required
Brighton & Worthing	318 & 333	1984*	EWT	* New sheet in press 2005 (EWFCSP)
Lewes	319	1979*	EWT	* New sheet in press 2005/6 (EWFCSP)
Sidmouth	326 & 340	1974*	EWT	* New sheet in press 2004 (EWFCSP)Beer Head Fm.
Bridport	327	1977	EWT	Nomenclature revision required.
Dorchester	328	2001	EWRSP	Minor revision required
Bournemouth	329	1991	EWT	Nomenclature revision required
Lymington	330	1975	EWT	Nomenclature revision required.
Portsmouth	331	1994	EWT	Nomenclature revision required
Eastbourne	334	1979*	EWT	* New sheet in press 2005/6 (EWFCSP)
West Fleet and Weymouth	Pts. 341& 342	2001	EWRSP	Minor revision required
Swanage	pts 342 & 343	2000	EWFCSP	Minor revision required
Isle of Wight	Pts. 330, 331, 344, & 345	1976	EWT	Nomenclature revision required.

It should be noted that BGS holds all of its 1:50 000 scale geological linework in digital fully attributed format within a dataset called DigMapGB-50. BGS is also compiling a 1:10 000 scale dataset, DigMapGB-10.