The BGS Lexicon of Named Rock Units — Result Details

Hill House Shales Member

Computer Code: HHSH Preferred Map Code: notEntered
Status Code: Pending Upgrade
Age range: St David's Series (ED) — St David's Series (ED)
Lithological Description: Greenish grey shaly mudstones with beds of fine-grained glauconitic and calcareous sandstone.
Definition of Lower Boundary: Conformably overlie the Hill House Grits (Upper Comley Sandstone Formation).
Definition of Upper Boundary: Unknown, but succeeded in the Comley area by the Shoot Rough Road Sandstone.
Thickness: Up to 100m
Geographical Limits: Church Stretton area, Comley, Shropshire.
Parent Unit: Upper Comley Sandstone Formation (UCSS)
Previous Name(s): Hill House Shales (-2847)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  Hill House Ridge, 600m southsoutheast of Comley, Shropshire. Cobbold, E S. 1909. 
Reference(s):
Rushton, A W A. 1974. The Cambrian of Wales and England, 43-121 in Holland, C H (editor), The Cambrian of the British Isles, Norden and Spitzbergen (Lower Palaeozoic rocks of the world, 2). [London: John Wiley and Son.] 
Cobbold, E S. 1909. On some excavations in the Cambrian rocks of Comley, Shropshire, 1907. Report of the British Association (for 1908), 231-242. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable