The BGS Lexicon of Named Rock Units — Result Details
Birstall Sand and Gravel Member
Computer Code: | BISG | Preferred Map Code: | symb |
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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 Terrace
(-699)
Birstall Sand and Gravel [Obsolete Name and Code: Use BISG] (-3218) |
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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 |