| 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 [Obsolete Name and Code: Use SHAP]
(-4881)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
Shap Pink Quarry, Shap, Cumbria. Loughlin, 1999. |
| Reference(s): |
| 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.) |
| Rundle, C C, 1992. Review and assessment of isotopic ages from the English Lake District. British Geological Survey Technical Report, WA/92/38. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E030
E039
|
