| Computer Code: |
WTRS |
Preferred Map Code: |
WTRS |
| Status Code: |
Full |
| Age range: |
Asbian Substage (CR)
— Asbian Substage (CR) |
| Lithological Description: |
Sandstone. |
| Definition of Lower Boundary: |
At the base of the sandstone overlying the uppermost thick-bedded limestone of the Great Scar Limestone Group. |
| Definition of Upper Boundary: |
Base of the overlying Askham or Peghorn Limestone Member. |
| Thickness: |
From 3 to 7m |
| Geographical Limits: |
Northwest England. |
| Parent Unit: |
Tyne Limestone Formation (TYLS)
|
| Previous Name(s): |
Thorny Force Sandstone
(TFS)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Section |
In borehole NY42NE/1, between 54.73 and 59.84m depth below ground level. Arthurton and Wadge, 1981. |
| Reference(s): |
| Rowley, C R. 1969. The stratigraphy of the Carboniferous Middle Limestone Group of West Edenside, Westmorland. Proceedings of the Yorkshire Geological Society, Vol.37, 329-350. |
| McCormac, M, 2001. The Upper Palaeozoic rocks of the Shap and Penrith district, Edenside, Cumbria. British Geological Survey Research Report, RR/01/10. |
| Burgess, I C, and Holliday, D W. 1979. Geology of the country around Brough-under-Stainmore. Memoir for 1:50 000 geological sheet 31 and parts of sheets 25 and 30. Geological Survey of Great Britain (England and Wales). (London: HMSO.) 131 pp. |
| 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. 165 pp. |
| Arthurton, R S, and Wadge, A J. 1981. Geology of the country around Penrith. Memoir for geological sheet 24. Institute of Geological Sciences, London, HMSO. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E030
|
