The BGS Lexicon of Named Rock Units — Result Details

Iron Crag Microgranite

Computer Code: CFCOI Preferred Map Code: notEntered
Status Code: Full
Age range: Ordovician Period (O) — Ordovician Period (O)
Lithological Description: Feldspar-phyric, micrographic microgranite.
Definition of Lower Boundary: Not defined.
Definition of Upper Boundary: Not defined.
Thickness: A near-vertical sheet, emplaced along the Roughton Gill Fault, at the western margin of the Carrock Fell Complex.
Geographical Limits: Carrock Fell, Cumbria.
Parent Unit: Carrock Fell Complex (CFCO)
Previous Name(s): Iron Crag Microgranite [In Carrock Fell Complex] (-4532)
Alternative Name(s): none recorded or not applicable
Type Area  Roughton Gill, Caldbeck Fells. Millward (1999) 
Millward, D, Carrock Fell. 198-204 in Stephenson, D, Bevins, R E, Millward, D, Highton, A J, Parsons, I, Stone, P and Wadsworth, W J. 1999. Caledonian Igneous Rocks of Great Britain. Geological Conservation Review Vol. 17. (Peterborough: Joint Nature Conservation Committee.) 
Millward, D. 2002. Early Palaeozoic magmatism in the English Lake District. Proceedings of the Yorkshire Geological Society, Vol. 54, Part 2, 65-93. 
1:50K maps on which the lithostratigraphical unit is found, and map code used: