| Computer Code: |
PVO |
Preferred Map Code: |
PVO |
| Status Code: |
Full |
| Age range: |
Ediacaran Period (AD)
— Ediacaran Period (AD) |
| Lithological Description: |
Dark green and purple chloritic slates, felsic tuffs and tuffaceous sedimentary rocks. |
| Definition of Lower Boundary: |
Appears to overlie the andesitic and basaltic tuffs and lavas of the Rhosson Group conformably. |
| Definition of Upper Boundary: |
Overlain unconformably by Cambrian strata. |
| Thickness: |
At least 100m |
| Geographical Limits: |
Pembrokeshire: 1:50,000 Sheet 209 (St.David's). |
| Parent Unit: |
Pebidian Supergroup (PN)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Section |
Ogofgolchfa, Whitesands Bay. 2.3km northwest of St David's. Bevins, R E and Horak J. 2000. |
| Reference(s): |
| 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. |
| Earp, J R. 1973. St David's Solid. 1:25 000, Geological Special Sheet, England and Wales. (London: Institute of Geological Sciences.) |
| Bevins, R E, and Horak, J. 2000. St David's Peninsula. 131-136 in Precambrian Rocks of England and Wales. Carney, J (editor). Geological Conservation Review Series, 20. (Peterborough: Joint Nature Conservation Committee.) |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E209
|
