| Computer Code: |
KKBS |
Preferred Map Code: |
K |
| Status Code: |
Index Level |
| Age range: |
Langsettian Substage (CA)
— Langsettian Substage (CA) |
| Lithological Description: |
A medium-bedded, very fine- to medium-grained, ripple cross-laminated, micaceous, buff to pale brown sandstone, interbedded with greenish grey siltstone. |
| Definition of Lower Boundary: |
Sharp upward change in a conformable succession from predominantly grey mudstone/siltstone to sandstone - base of first sandstone above the Black Bed Coal. |
| Definition of Upper Boundary: |
Sharp upward change in a conformable succession from sandstone to predominantly grey mudstone - top of last sandstone bed below the Crow Coal. |
| Thickness: |
0 to 20m |
| Geographical Limits: |
Southeast of Huddersfield in Lepton [SE2030 1540] - Kirkburton [SE2450 0350] - Penistone [SE2450 0350] area West Yorkshire. |
| Parent Unit: |
Pennine Lower Coal Measures Formation (PLCM)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
Grenoside Rock
|
| Stratotypes: |
| Reference Section |
Burton Den Quarries, Highburton, West Yorkshire; upper 14m of succession seen. Chisholm, 2000b. |
| Reference Section |
Elliot's Lepton Brickworks, Fenay Bridge Road, Lepton, West Yorkshire; 15m showing full succession. Chisholm, 2000a. |
| Reference(s): |
| Chisholm, J I. 2000a. Geology of the Huddersfield east area. British Geological Survey Technical Report WA/00/01. |
| Addison, R, Waters, C N, and Chisholm, J I. 2005. Geology of the Huddersfield district - a brief explanation of the geological map Sheet 77 Huddersfield. Sheet Explanation of the British Geological Survey. 1:50 000 Sheet 77 Huddersfield (England and Wales). |
| Chisholm, J I, 2000b. Geology of the Kirkburton area. British Geological Survey Technical Report WA/00/02. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E077
E070
E086
|
