| Computer Code: |
BIIN |
Preferred Map Code: |
notEntered |
| Status Code: |
Full, pending ratification |
| Age range: |
Cisuralian Epoch (PLC)
— Cisuralian Epoch (PLC) |
| Lithological Description: |
Pluton comprising granite and microgranite. Generally coarse-grained and megacrystic with grain size averaging 2-3 mm. It has a typically inequigranular, hypidiomorphic, granitic texture and is grey when fresh, becoming buff when weathered. |
| Definition of Lower Boundary: |
none recorded or not applicable
|
| Definition of Upper Boundary: |
none recorded or not applicable
|
| Thickness: |
none recorded or not applicable
|
| Geographical Limits: |
Bodmin Moor, Cornwall. |
| Parent Unit: |
Not Available (!)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
Centred on Bodmin Moor and extending around 190 sq km, Selwood et al., 1998. |
| Reference(s): |
| Selwood, E B, Thomas, J M, Williams, B J, Clayton, R, Durning, B, Smith, O and Warr, L N, 1998. Geology of the country around Trevose Head and Camelford. Memoir of the British Geological Survey, sheets 335 and 336 (England and Wales). |
| Darbyshire, D P F, and Sheppard, T J. 1985. Chronology of granite magmatism and associated mineralisation, SW England. Journal of the Geological Society London, 142, 1159-1177. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
