The BGS Lexicon of Named Rock Units — Result Details

Shap Pluton

Computer Code: SHAP Preferred Map Code: notEntered
Status Code: Full
Age range: Early Devonian Epoch (DL) — Early Devonian Epoch (DL)
Lithological Description: Potassium feldspar-megaphyric granite. Radiometric age: 397 +/- 7 Ma (K-Ar, biotite) (see Rundle, 1992).
Definition of Lower Boundary: Not defined.
Definition of Upper Boundary: Not present.
Thickness: A steep-sided, cylindrical pluton, with an outcrop area of about 8 km2.
Geographical Limits: Shap Fells, Cumbria.
Parent Unit: Northern England Devonian Plutonic Suite (NEDP)
Previous Name(s): Shap Granite (-4881)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Shap Pink Quarry, Shap, Cumbria. Loughlin, 1999. 
Reference(s):
Rundle, C C, 1992. Review and assessment of isotopic ages from the English Lake District. British Geological Survey Technical Report, WA/92/38. 
Loughlin, S C. 1999. Shap Fell Crags. In: Stephenson, D, Bevins, R E, Millward, D, Highton, A J, Parsons, I, Stone, P and Wadsworth, W J. Caledonian igneous rocks of the British Isles. (Peterborough: Joint Nature Conservation Committtee.) 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E030 E039