| Computer Code: |
LFOS |
Preferred Map Code: |
LfoS |
| Status Code: |
Full |
| Age range: |
Kinderscoutian Substage (CK)
— Kinderscoutian Substage (CK) |
| Lithological Description: |
Coarse-grained, cross-bedded, gritty sandstone. |
| Definition of Lower Boundary: |
Lower boundary taken where sandstone of Lane Foot Sandstone lies with a sharp base upon mudstone and siltstone of the Kirkbeck Member. |
| Definition of Upper Boundary: |
Upper boundary taken where sandstone of the Lane Foot Sandstone has a sharp top, overlain by fissile, dark grey micaceous siltstone of the Kirkbeck Member. |
| Thickness: |
Up to 55 m (in Bentham Station Borehole SD66NE/1); generally less than 10 m. |
| Geographical Limits: |
Known from the Bentham area, Lancashire. Not mapped east or south of SD66NE. |
| Parent Unit: |
Hebden Formation (HEBD)
|
| Previous Name(s): |
Lane Foot Sandstone Member [Obsolete Name and Code: Use LFOS]
(-2898)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Section |
Moulter Beck, about 160 m south of Moulterbeck Farm, near Bentham, Lancashire. |
| Reference Section |
Stream section 200 m north of High Bottom, near Bentham, Lancashire. |
| Reference(s): |
| Brandon, A, Aitkenhead, N, Crofts, R G, Ellison, R A, Evans, D J, and Riley, N J. 1998. Geology of the country around Lancaster. Memoir of the British Geological Survey, Sheet 59 (England and Wales). |
| Ellison, R A, 1991. Geology of Bentham. British Geological Survey Technical Report, WA/91/83. |
| Waters, C N, Waters, R A, Barclay, W J, and Davies, J R. 2009. Lithostratigraphical framework for Carboniferous successions of Southern Great Britain (Onshore). British Geological Survey Research Report, RR/09/01. 184pp. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E059
|
