The BGS Lexicon of Named Rock Units — Result Details

Silchester Gravel Member

Computer Code: SIGR Preferred Map Code: symb
Status Code: Full
Age range: Anglian Stage (QA) — Anglian Stage (QA)
Lithological Description: Gravel, variably clayey and sandy.
Definition of Lower Boundary: Erosional contact on Cretaceous-Tertiary bedrock.
Definition of Upper Boundary: Terrace surface around Silchester, Sulhampstead and correlatives.
Thickness: 1-8m
Geographical Limits: Kennet Basin.
Parent Unit: Kennet Valley Formation (KNTV)
Previous Name(s): Plateau Gravel (PLG)
Silchester Gravel (-1182)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Kennet Drainage Basin and interfluves. Between Newbury and Reading. 
Reference(s):
Bridgland, D R. 1994. Quaternary of the Thames. Geological Conservation Review Series No.7. (Peterborough: Joint Nature Conservation Committee.) 
Gibbard, P L. 1982. Terrace stratigraphy and drainage history of the Plateau Gravels of north Surrey, south Berkshire, and north Hampshire, England. Proceedings of the Geologists' Association, Vol.93, 369-384. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E268