The BGS Lexicon of Named Rock Units — Result Details

Hill House Grits Member

Computer Code: HHGT Preferred Map Code: notEntered
Status Code: Pending Upgrade
Age range: St David's Series (ED) — St David's Series (ED)
Lithological Description: Coarse-grained, brown-weathering glauconitic quartzose sandstones with conglomerate beds.
Definition of Lower Boundary: In places conformable on the Hill House Flags of the Comley area, but locally unconformable on the Lower Comley Sandstone Formation.
Definition of Upper Boundary: Conformably overlain by the Hill House Shales, also of the Upper Comley Sandstone Formation.
Thickness: 11 to 12m
Geographical Limits: Church Stretton area, Comley, Shropshire.
Parent Unit: Upper Comley Sandstone Formation (UCSS)
Previous Name(s): Hill House Grits (-317)
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