| Computer Code: |
RDWC |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Early Devonian Epoch (DL)
— Mid Devonian Epoch (DM) |
| Lithological Description: |
Interbedded conglomerates and red mudstones. |
| Definition of Lower Boundary: |
Sharp, unconformable junction where basal conglomerates of the formation rest on an erosion surface cut in red mudstones of the Lower Devonian Milford Haven Group. |
| Definition of Upper Boundary: |
Sharp, unconformable junction with the overlying Skrinkle Sandstone Group, where the topmost conglomerate of the formation is overlain by mudstones or sandstones. |
| Thickness: |
Up to 427 m. |
| Geographical Limits: |
Pembroke Peninsula, south-west Wales, from West Angle Bay to Skrinkle Haven. |
| Parent Unit: |
Milford Haven Subgroup (MIH)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| none recorded or not applicable |
| Reference(s): |
| Dixon, E E L. 1921. The Geology of the South Wales Coalfield, Part XIII , the country around Pembroke and Tenby, being an account of the region comprised in sheets 244 and 245. Memoir of the Geological Survey of Great Britain (HMSO). |
| Waters, C N, Smith, K, Hopson, P M, Wilson, D, Bridge, D M, Carney, J N, Cooper, A H, Crofts, R G, Ellison, R A, Mathers, S J, Moorlock, B S P, Scrivener, R C, McMillan, A A, Ambrose, K, Barclay, W J, and Barron, A J M. 2007. Stratigraphical Chart of the United Kingdom: Southern Britain. British Geological Survey, 1 poster. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E245
E244
|
