The BGS Lexicon of Named Rock Units — Result Details

Ercall Granophyre

Computer Code: ERCL Preferred Map Code: notEntered
Status Code: Index Level
Age range: Ediacaran Period (AD) — Ediacaran Period (AD)
Lithological Description: Granophyric granite.
Definition of Lower Boundary: Unknown.
Definition of Upper Boundary: Not applicable: unconformably overlain by Lower Cambrian sandstones.
Thickness: Unknown.
Geographical Limits: Shropshire, Welsh Borders.
Parent Unit: Uriconian Group (UO)
Previous Name(s): none recorded or not applicable
Alternative Name(s): The Ercall Igneous Intrusion
Stratotypes:
Reference Section  Disused, overgrown quarries east of road from Buckatree Hall to Wellington. 
Partial Type Section  Ercall Quarries, 2km northeast of the Wrekin and south of Wellington near Telford. Toghill, P and Beale, S. 1994. 
Reference(s):
Wright, A E, Fairchild, I J, Moseley, F and Downie, C. 1993. The Lower Cambrian Wrekin Quartzite and the age of its unconformity on the Ercall Granophyre. Geological Magazine, Vol.130, 257-264. 
Thorpe, R S, 1974. Aspects of magmatism and plate tectonics in the Precambrian of England and Wales. Geological Journal, Vol.9, 115-136. 
Toghill, P and Beale, S. 1994. Ercall quarries, Wrekin area, Shropshire: Geology teaching trail. Geologists' Association Guide, No.48. [London: Geologists' Association.] 
Wilson, D, 2000. Shropshire. 81-113 in Precambrian rocks of England and Wales. Carney, J N (editor). Geological Conservation Review Series No. 20. (Peterborough: Joint Nature Conservation Committee). 
Pocock R W, Whitehead T H, Wedd C B and Robertson T. 1938. Shrewsbury District including the Hanwood Coalfield. Memoir of the Geological Survey of Great Britain, England and Wales. (London: H.M.S.O.). 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E152