The BGS Lexicon of Named Rock Units — Result Details

Birstall Sand and Gravel Member

Computer Code: BISG Preferred Map Code: symb
Status Code: Pending Upgrade
Age range: Wolstonian Stage (QO) — Wolstonian Stage (QO)
Lithological Description: Sand and gravel with minor clay and silt lenses.
Definition of Lower Boundary: The bedrock surface - commonly cryogenically involuted; other deposits may intervene.
Definition of Upper Boundary: Top of sand and gravel, commonly corresponding to terrace surface; commonly overlain by head that is involuted with sand and gravel to varying degrees.
Thickness: To c.4m
Geographical Limits: Soar Valley and tributary valley of Kingstone Brook.
Parent Unit: Soar Valley Formation (SOARV)
Previous Name(s): Birstall Sand and Gravel [Obsolete Name and Code: Use BISG] (-3218)
Birstall Terrace (-699)
Alternative Name(s): none recorded or not applicable
Stratotypes:
none recorded or not applicable
Reference(s):
Brandon, A. 1994. Geology of the Normanton on Soar area: 1:10 000 Sheet SK52SW. British Geological Technical Report WA/94/60. 
Brandon, A, and Carney, J N. 1997. Geology of the Kegworth area: 1:10 000 Sheet SK42NE. British Geological Survey Technical Report WA/97/04. 
Carney, J N and Cooper, A H. 1997. Geology of the West Leake area: 1:10 000 Sheet SK52NW. British Geological Survey Technical Report WA/97/46. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E142 E141