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. 2002. Early Palaeozoic magmatism in the English Lake District. Proceedings of the Yorkshire Geological Society, Vol. 54, Part 2, 65-93. 
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.) 
1:50K maps on which the lithostratigraphical unit is found, and map code used: