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

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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.