Geology of the Petersfield district, Hampshire : explanation of 1:10000 geological sheets SU72NW, 72NE, 72SW, 72SE, 82NW and 82SW, part of 1:50000 sheet 300 (Alresford)

This account describes the geology depicted either in whole or in part, on the following 1:10,000 sheets: SU72NW (Steep); SU72NE ( L i s s ) ; SU72SW (Petersfield); SU72SE (Sheet); SU82NW (Rake) and SU82SW (Rogate), which form part of the l:5O,OOO Alresford (300) geological Sheet. This d i s t r i c t was first geologically surveyed on the one-inch scale by F Drew, H W Bristow and C Gould and published as Old Series One-inch Sheets 9 (1864) and 11 (1858). The descriptive memoir covering these sheets was compiled by W Topley and published in 1875. H E Hawkins resurveyed the area at the six-inch scale between 1888 and 1896 and the results were incorporated in One-inch New Series Alresford (300) Sheet f i r s t published in 1898. This sheet was reconstituted without geological revision on to a 1:50,000 base and reprinted in 1975. A Memoir covering this new sheet area was compiled by White (1910). Several of the Geological Survey 'Water Supply' Memoirs have dealt in part with this d i s t r i c t , namely The Water Supply of Hampshire with records of sinkings and borings (including the Isle of Wight) (Whitaker, 1910); The Water Supply of Sussex from underground sources (Whitaker and Reid, 1899) with a supplement (Whitaker, 1910); Wells and Springs of Sussex (Edmunds, 1928); Wartime Pamphlet No.15, part V (Buchan et a l . , 1942) and Records of w e l l s in the area around Alresford (Flatt et al., 1976). Abstracts of the geological s t r a t a encountered in some of these wells, together with trial borehole records held by the British Geological Survey, are included in Appendix 2. The revision six-inch geological survey of the Petersfield area was made by D r C R Bristow in 1981 under the direction of D r D B Smith as District Geologist. Additional resurvey to complete the mapping of sheets SU72SE and 82sw (parts of the Fareham (316) and Chichester (317) sheets) was carried out by C R Bristow in 1982 under the direction of D r W A Read as District Geologist. This account by D r Bristow, which includes contributions on the palaeontology by M r A A Morter, and on the petrology by Messrs R J Merriman and R W Sanderson, was f i r s t produced as an internal report for the Department of Energy in 1981. In publishing the present account, advantage has been taken to incorporate additional figures and references, and to make minor corrections and e d i t o r i a l changes.