The BGS Lexicon of Named Rock Units — Result Details

Eden Shales Formation

Computer Code: EDSH Preferred Map Code: EDSH
Status Code: Pending Upgrade
Age range: Permian Period (P) — Permian Period (P)
Lithological Description: Red shales and mudstones with local beds of gypsum and anhydrite, rare dolomitic limestones.
Definition of Lower Boundary: Conformable base on Penrith Sandstone Formation.
Definition of Upper Boundary: Conformable upward passage to St Bees Sandstone Formation.
Thickness: Up to c.100m
Geographical Limits: none recorded or not applicable
Parent Unit: Cumbrian Coast Group (CCO)
Previous Name(s): St Bees Shales (-227)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Reference Section  Langwathby Borehole. 
Reference(s):
Arthurton, R S, 1971. The Permian evaporites of the Langwathby Borehole, Cumberland. Report of the Institute of Geological Sciences. 71/17. 
Burgess, I C, 1968. In Annual Report, Institute of Geological Sciences, 1967. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E031 E023 E024 E018 E040