| Computer Code: |
UBS |
Preferred Map Code: |
UBS |
| Status Code: |
Index Level |
| Age range: |
Pendleian Substage (CE)
— Pendleian Substage (CE) |
| Lithological Description: |
[Obsolete: use BSG] Mainly thinly interbedded dark grey fissile mudstone and weakly calcareous or dolomitic blocky or platy, silty mudstone and siltstone. |
| Definition of Lower Boundary: |
Base of the Cravenoceras leion Marine Band. |
| Definition of Upper Boundary: |
Base of the Pendle Grit Formation. In the normally gradational upwards coarsening sequence this is taken at the point where sandstone becomes predominant over mudstone/siltstone. |
| Thickness: |
To c.230m |
| Geographical Limits: |
Widespread in Craven Basin including Lancaster, Garstang, Clitheroe, Settle and Harrogate districts. |
| Parent Unit: |
none recorded or not applicable
|
| Previous Name(s): |
Roosecote Mudstones [Obsolete Name And Code: See UBS]
(ROM)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Reference Section |
Trough of Bowland, Lancashire. Banks of stream immediately west of the Trough of Bowland road. |
| Type Section |
Little Mearley Clough, Pendle Hill, Clitheroe, Lancs. (Earp and others, 1961) upstream from Little Mearley Hall 950m to 1100m to the southeast. |
| Reference(s): |
| Whittard, W F and Simpson, S, 1960. Upper Carboniferous of England, Wales and Scotland, "in" Whittard, W F and Simpson, S. Lexique Stratigraphique International, part 3a VIII, Vol.18. Centre National de la Recherche Scientifique, Paris. |
| Earp, J R, Magraw, D, Poole, E G, Land, D H, and Whiteman, A J. 1961. Geology of the country around Clitheroe and Nelson. Memoir of the Geological Survey of Great Britain, Sheet.68, England and Wales, p. 346. |
| Aitkenhead, N, Bridge, D M, Riley, N J, and Kimbell, S F. 1992. Geology of the country around Garstang. Memoir of the British Geological Survey, Sheet 67 (England and Wales) |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E069
E060
E067
E075
E059
E058
E048
|
