| Computer Code: |
RHP |
Preferred Map Code: |
RhP |
| Status Code: |
Full |
| Age range: |
Permian Period (P)
— Permian Period (P) |
| Lithological Description: |
Limestone conglomerate - granule to cobble sized clasts with interbeds of red sandstone and some siltstone near base. |
| Definition of Lower Boundary: |
Unconformity; in type section it overlies Millstone Grit Group (Namurian) sandstone and mudstone with seatearths. |
| Definition of Upper Boundary: |
Top not seen, present-day erosion surface. |
| Thickness: |
At least 257 m. |
| Geographical Limits: |
Cark Peninsula, South Cumbria, to the south of the Cark Fault and west of the Humphrey Head Fault, extending southwards off-shore into Morecambe Bay. |
| Parent Unit: |
Appleby Group (APY)
|
| Previous Name(s): |
Included in Brockram [Obsolete Name and Code: Use RHP]
(-3000)
|
| Alternative Name(s): |
Brockram
|
| Stratotypes: |
| Reference Section |
Rougholme Point lies 1 km NW of Humphrey Head, near Grange over Sands, Cumbria. |
| Reference(s): |
| Johnson, E W, Soper, N J, Burgess, I C, Ball, D F, Beddoe-Stephens, B, Carruthers, R M, Fortey, N J, Hirons, S, Merritt, J W, Millward, D, Roberts, B, Walker, A B and Young, B. 2001. Geology of the country around Ulverston. Memoir of the British Geological Survey, England and Wales, Sheet 48. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E048
|
