| Computer Code: |
FAR |
Preferred Map Code: |
FarM |
| Status Code: |
Full |
| Age range: |
Eifelian Age (DI)
— Eifelian Age (DI) |
| Lithological Description: |
Thin, sharp and erosively based, dark grey, commonly foetid crinoidal packstone intercalated with calcareous mudstone or argillaceous, fine-grained wackestone. In type area, 50m of grey-green, basaltic tuffaceous mudstone is present at the top. |
| Definition of Lower Boundary: |
Faulted out. |
| Definition of Upper Boundary: |
Conformably succeeded by grey slaty calcareous mudstone of the Prince Rock Member. |
| Thickness: |
Not known, part of reef deposit. |
| Geographical Limits: |
Plymouth area, 50k geological sheets 348/349. |
| Parent Unit: |
Plymouth Limestone Formation (PYL)
|
| Previous Name(s): |
Plymouth Limestone
(-901)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Reference Section |
Partly exposed in quarry wall in the west side of Stonehouse Pool at the southern end of Richmond Walk. |
| Reference(s): |
| Leveridge B E, Holder, M T, Goode, A J J, Scrivener R C, Jones N S and Merriman, R J. 2002. Geology of the Plymouth and south-east Cornwall area. Memoir of the British Geological Survey, Sheet 348 (England and Wales). |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E348
|
