The BGS Lexicon of Named Rock Units — Result Details
Powillimount Sandstone Member
| Computer Code: | POSD | Preferred Map Code: | POSD |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Arundian Substage (CJ) — Holkerian Substage (CQ) | ||
| Lithological Description: | Interbedded bioturbated sandstone, sandy limestone (some oncolite beds) and mudstone, sparsely fossiliferous. | ||
| Definition of Lower Boundary: | Gradational with the Gillfoot Sandstone Formation. | ||
| Definition of Upper Boundary: | Taken at top of the Thirlstane Sandstone Member, which lies conformably under the Arbigland Limestone Formation. | ||
| Thickness: | 135 m. | ||
| Geographical Limits: | Powillimount shore, Southerness, Kirkcudbrightshire, south-western Scotland (Southern Uplands). | ||
| Parent Unit: | Fell Sandstone Formation (FELL) | ||
| Previous Name(s): | Powillimount Beds [Obsolete Name And Code: Use POSD]
(POW)
Powillimount Member [Obsolete Name and Code: Use POSD] (-4269) Powillimount Sandstone Formation [Obsolete Name and Code: Use POSD] (-4847) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Type Section | Coastal section 100 m ENE of Powillimount Farm, Southerness, Kirkcudbrightshire. | ||
| Reference(s): | |||
| Dean, M T, Browne, M A E, Waters, C N and Powell, J H. 2011. A lithostratigraphical framework for the Carboniferous successions of northern Great Britain (onshore). British Geological Survey Research Report, RR/10/007. 165pp. | |||
| Deegan, C E. 1970. The petrology and sedimentology of the Lower Carboniferous rocks between White Port and Kirkbean, Kirkcudbrightshire. University of Wales, Aberystwyth PhD Thesis (unpublished). | |||
| Craig, G Y. 1956. The Lower Carboniferous outlier of Kirkbean, Kirkcudbrightshire. Transactions of the Geological Society of Glasgow, Vol. 22, 113 - 132. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| S006 S005 S006 | |||