The BGS Lexicon of Named Rock Units — Result Details

Wray Castle Formation

Computer Code: WRE Preferred Map Code: WRE
Status Code: Full
Age range: Gorstian Age (SG) — Gorstian Age (SG)
Lithological Description: Laminated mudstone and siltstone.
Definition of Lower Boundary: Conformably overlies the Coldwell Formation.
Definition of Upper Boundary: Conformably overlain by the Gawthwaite Formation, which is the sandstone member of the Coniston Group.
Thickness: c.300m
Geographical Limits: Southern Lake District and northwest Pennines.
Parent Unit: Tranearth Group (TNTH)
Previous Name(s): Upper Coldwell Beds [Obsolete Name And Code: Use WRE] (UCW)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  Lake shore section east of Wray Castle: 350m northwest and 200m southwest of Watbarrow Point. 
Reference(s):
Moseley F. 1984. Lower Palaeozoic lithostratigraphical classification in the English Lake District. Geological Journal, Vol. 19, p. 239-247. 
Kneller, B C. 1990. The Wenlock rocks of sheet 38 (Ambleside). British Geological Survey Technical Report, WA/90/64 
Marr J E. 1892. On the Wenlock and Ludlow strata of the Lake District. Geological Magazine, Vol. 9, p 534-541. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E038 E048