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
Alternative Name(s): none recorded or not applicable
Stratotypes:
none recorded or not applicable
Reference(s):
Wells A J, 1955. The Development of chert between the main and crew limestones in North Yorkshire. Proceedings of the Yorkshire Geol. Soc, Vol.30. 177-196. 
Dunham K C and Wilson A A, 1985. Geology of the Northern Pennine Orefield, Vol.2. Memoir of the British Geological Survey. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E050 E040 E041 E051