The BGS Lexicon of Named Rock Units — Result Details

Knott Copy Grit

Computer Code: KNC Preferred Map Code: KnG
Status Code: Index Level
Age range: Kinderscoutian Substage (CK) — Kinderscoutian Substage (CK)
Lithological Description: A thickly bedded, trough cross-bedded, coarse-grained, feldspathic sandstone; medium-grained in upper 5m with ganister top.
Definition of Lower Boundary: Sharp upward change in a conformable succession from predominantly grey mudstone to sandstone - base of first sandstone bed above the Reticuloceras dubium Marine Band.
Definition of Upper Boundary: Sharp upward change in a conformable succession from sandstone to predominantly mudstone - top of last sandstone bed below the Reticuloceras stubblefieldei Marine Band.
Thickness: 0 to 40m
Geographical Limits: Pennine foothills between Settle [SD8100 6400] and High Bentham [SD6700 6930].
Parent Unit: Hebden Formation (HEBD)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  Knott Coppy Borehole, (SD76SE/16) between 16.5 and 20.5m. Arthurton, et al. 1988. 
Reference Section  Black Bank Skye, 1km south of Eldroth, North Yorkshire; base seen. Arthurton, et al. 1988. 
Reference(s):
Arthurton, R S, Johnson, E W and Mundy, D J C. 1988. Geology of the country around Settle. Memoir of the British Geological Survey, Sheet 60 (England and Wales). 
Brandon, A, Aitkenhead, N, Crofts, R G, Ellison, R A, Evans, D J and Riley, JN J, 1998. Geology of the country around Lancaster. Memoir of the British Geological Survey, Sheet 59 (England and Wales). 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E059 E060