| Computer Code: |
SHVI |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Chadian Substage (CI)
— Chadian Substage (CI) |
| Lithological Description: |
Comprises grainstone, oolite, calcarenite, dolostone, sandstone, siltstone, mudstone and conglomerate lithologies. |
| Definition of Lower Boundary: |
Algal band at the top of the Stone Gill Limestone Formation, or the base of the first significant limestone bed above the Marsett Formation mudstone conglomerate. |
| Definition of Upper Boundary: |
Disconformity at the base of the overlying Ashfell Sandstone Formation. |
| Thickness: |
From 40 to 150m. |
| Geographical Limits: |
Between the Anne's Well Fault in the south, and the Kirk Rigg Fault to the north, in the Shap and Penrith district of Edenside. |
| Parent Unit: |
Ravenstonedale Group (RVS)
|
| Previous Name(s): |
Shap Limestone
(-524)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Section |
The Force Beck Stream section, south of Shap village, between the railway bridge and Waters Farm. Garwood 1913. |
| 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. 165 pp. |
| Garwood, E J. 1913. The Lower Carboniferous succession in the north-west of England. Journal of the Geological Society, London, Vol. 68 (for 1912), 449-586. |
| Ashton, P R. 1971. Carboniferous Basement Rocks of Northern Britain. Unpublished PhD thesis, University of Durham. |
| Dakyns, J R, Tiddeman, R H, and Goodchild J G. 1897. The geology of the country between Appleby, Ullswater and Haweswater. Memoir of the Geological Survey of Great Britain, Sheet 30 (England and Wales). |
| McCormac, M, 2001. The Upper Palaeozoic rocks of the Shap and Penrith district, Edenside, Cumbria. British Geological Survey Research Report, RR/01/10. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E030
|
