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.