| Computer Code: |
PKNS |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Chadian Substage (CI)
— Holkerian Substage (CQ) |
| Lithological Description: |
Medium-grained, locally coarse-grained in upper 10m, medium- to thick-bedded, cross-bedded sandstone. Some thin mudstone beds (0 to 3m). |
| Definition of Lower Boundary: |
Contact of sandstone with underlying mudstone and siltstone of the Fell Sandstone Formation (undifferentiated). |
| Definition of Upper Boundary: |
Contact of sandstone with overlying mudstone and siltstone of the Fell Sandstone Formation (undifferentiated). |
| Thickness: |
20 to 75m |
| Geographical Limits: |
In the area southwest of Berwick-upon-Tweed the Fell Sandstone Formation consists of several sandstone members separated by variable thicknesses of mudstone and siltstone. The Peel Knowe Sandstone Member is the middle of three members and is found in a northeast - southwest band between Longridge Towers and Grievestead Moor. |
| Parent Unit: |
Fell Sandstone Formation (FELL)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Reference Section |
Known from the Shoreswood Loan borehole (NT94NW6) between 10 and 49m depth. Turner et al., 1993. |
| Reference(s): |
| Turner, B R, Younger, P L and Fordham, C E. 1993. Fell Sandstone Group lithostratigraphy south-west of Berwick-upon-Tweed: implications for the regional development of the Fell Sandstone. Proceedings of the Yorkshire Geological Society. Vol.49, Part 4, 269-281. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
