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
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. 
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: