| Computer Code: |
LLKL |
Preferred Map Code: |
notEntered |
| Status Code: |
Pending Upgrade |
| Age range: |
Famennian Age (DA)
— Tournaisian Age (CT) |
| Lithological Description: |
Greenish grey slate with thin bioclastic limestone beds. |
| Definition of Lower Boundary: |
Thrust fault |
| Definition of Upper Boundary: |
Thrust fault |
| Thickness: |
Not known. |
| Geographical Limits: |
Polyphant-South Petherwin area. |
| Parent Unit: |
Petherwin Formation (PWB)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
Sporadic outcrops in the vicinity of and between Polyphant and South Petherwin. |
| Reference(s): |
| British Geological Survey. 1993. Tavistock. England and Wales Sheet 337. Solid and Drift 1:50 000 Provisional Series (Keyworth, Nottingham: British Geological Survey.) |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
