The BGS Lexicon of Named Rock Units — Result Details

Richmond Chert

Computer Code: RDC Preferred Map Code: RdC
Status Code: Pending Upgrade
Age range: Pendleian Substage (CE) — Pendleian Substage (CE)
Lithological Description: Sequence of chert, cherty limestone, limestone and mudstone in very variable proportions.
Definition of Lower Boundary: none recorded or not applicable
Definition of Upper Boundary: none recorded or not applicable
Thickness: none recorded or not applicable
Geographical Limits: none recorded or not applicable
Parent Unit: Stainmore Formation (SMGP)
Previous Name(s): Richmond Chert Series (-4289)
Alternative Name(s): none recorded or not applicable
Stratotypes:
none recorded or not applicable
Reference(s):
Dunham, K C, and Wilson, A A. 1985. Geology of the Northern Pennine Orefield. Volume 2 Stainmore to Craven. Economic Memoir of the British Geological Survey, Sheets 40, 41 and 50, and parts of Sheets 31, 32, 51, 60 and 61(England and Wales). 
Wells A J, 1955. The Development of chert between the Main (Great) and Crow limestones in North Yorkshire. Proceedings of the Yorkshire Geol. Soc, Vol.30. 177-196. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E050 E040 E041 E051