| Computer Code: |
WIL |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Cautleyan Stage (OU)
— Cautleyan Stage (OU) |
| Lithological Description: |
Calcareous sandstone, interpreted as a storm-derived sand deposit. |
| Definition of Lower Boundary: |
Taken where sandstone becomes dominant in the passage from underlying mudstone within the Cautley Mudstone Formation. |
| Definition of Upper Boundary: |
The top is taken where mudstone within the Cautley Mudstone Formation becomes dominant in a passage upwards from sandstone. |
| Thickness: |
7 m. |
| Geographical Limits: |
Restricted to the Gawthrop Inlier, near Dent, Cumbria. |
| Parent Unit: |
Cautley Mudstone Formation (CMU)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Section |
The only exposure, and therefore the type section is in Wilsey Beck [SD 6868 8748], 500 m north-west of Gawthrop (Woodcock and Rickards, 2006). |
| Reference(s): |
| Millward, D, and Stone, P. 2012. Stratigraphical framework for the Ordovician and Silurian sedimentary strata of northern England and the Isle of Man. British Geological Survey Research Report, RR/12/04. 119pp. |
| Ingham, J K, 1966. The Ordovician rocks in the Cautley and Dent districts of Westmorland and Yorkshire. Proceedings of the Yorkshire Geological Society, Vol.35, 455-505. |
| Kneller, B C, Scott R W, Soper N J, Johnson E W and Allen P M, 1994. Lithostratigraphy of the Windermere Supergroup, Northern England. Geological Journal, Vol. 29, 219-240. |
| Woodcock, N H and Rickards, R B. 2006. Geological notes and local details for 1:10 000 scale Sheet SD68NW (Middleton) and part of Sheet SD68NE (Gawthrop). British Geological Survey Internal Report: IR/06/101. 42pp |
| Ingham, J K, and McNamara, K J. 1978. The Coniston Limestone Group. 121–129 in The geology of the Lake District. Moseley, F (editor). Occasional Publication of the Yorkshire Geological Society, No. 3. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
