The BGS Lexicon of Named Rock Units — Result Details
Shepperton Gravel Member
| Computer Code: | SHGR | Preferred Map Code: | symb |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Devensian Stage (QD) — Devensian Stage (QD) | ||
| Lithological Description: | Gravel with clay and sand. | ||
| Definition of Lower Boundary: | Erosional surface cut into Tertiary-Cretaceous bedrock. | ||
| Definition of Upper Boundary: | Lies beneath Thames floodplain alluvium (Staines Alluvial Deposits). | ||
| Thickness: | 0-8m, locally 12-14m | ||
| Geographical Limits: | Thames Valley, Abingdon-London. | ||
| Parent Unit: | Maidenhead Formation (MNHD) | ||
| Previous Name(s): | Valley Gravel
(VLGR)
Valley Gravel (VLGR) Shepperton Gravel (-522) |
||
| Alternative Name(s): | Colne Valley Deposits |
||
| Stratotypes: | |||
| Type Section | Shepperton Quarry. | ||
| Reference(s): | |||
| Gibbard, P L, 1985. Pleistocene history of the Middle Thames Valley. (London: Cambridge University Press.) | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| E268 E269 | |||