The BGS Lexicon of Named Rock Units — Result Details
Abbey Sand and Gravel Member
| Computer Code: | ABSG | Preferred Map Code: | notEntered |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Devensian Stage (QD) — Devensian Stage (QD) | ||
| Lithological Description: | Sands and gravels, some with marine shells, including clayey, sandy gravels and pebbly sands. | ||
| Definition of Lower Boundary: | Rests unconformably on bedrock or older Quaternary deposits. Passes laterally into First Terrace Deposits (eg. of Nene and Welland rivers). | ||
| Definition of Upper Boundary: | Contact with pebbly, silty, sandy clays and clayey sands of the Crowland Bed (Booth, 1982). In the absence of the Crowland Bed, may not be separable from the lowest part of the Barroway Drove Beds. | ||
| Thickness: | 0 - c.5m | ||
| Geographical Limits: | Mapped near the western and southwestern margins of Fenland in Lincolnshire and Cambridgeshire. Probably extensive beneath younger deposits throughout Fenland except, perhaps, in the east. Passes laterally into alluvial deposits (First Terrace Deposits). | ||
| Parent Unit: | Fenland Formation (FEND) | ||
| Previous Name(s): | Fen Gravel
(FEG)
|
||
| Alternative Name(s): | Basal Gravel Basal Sand And Gravel Abbey Gravel(s) |
||
| Stratotypes: | |||
| Type Area | Crowland, Lincolnshire, and immediate vicinity. | ||
| Reference Section | Area about 1 km west of Guthram Gowt, near Spalding, Lincolnshire. | ||
| Reference(s): | |||
| McMillan, A A, Hamblin, R J O, and Merritt, J W. 2011. A lithostratigraphical framework for onshore Quaternary and Neogene (Tertiary) superficial deposits of Great Britain and the Isle of Man. British Geological Survey Research Report, RR/10/03. 343pp. | |||
| Horton, A and Aldiss, D T, 1992. Spalding. England and Wales, Sheet 144. Solid and Drift 1:50000. (Southampton: Ordnance Survey for the British Geological Survey). | |||
| Booth, S J. 1983. The sand and gravel resources of the country between Bourne and Crowland, Lincolnshire. Description of 1:25 000 sheets TF 11 and parts of TF 01 and TF 21. Mineral Assessment Report of the Institute of Geological Sciences, No. 130, 191 pp. | |||
| Booth, S J. 1982. The sand and Gravel resources of the country around Whittlesey, Cambridgeshire: Description of 1:25 000 sheets TF 20 and TL 29. Mineral assessment report of the Institute of Geological Sciences, No. 93, 109 pp. | |||
| Horton, A. 1989. Geology of the Peterborough district. Memoir of the British Geological Survey, Sheet 158 (England & Wales). | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| E144 E158 | |||