| Computer Code: |
KBN |
Preferred Map Code: |
KBN |
| Status Code: |
Full |
| Age range: |
Early Triassic Epoch (TE)
— Anisian Age (TA) |
| Lithological Description: |
Sandstone, grey-ochreous mostly medium-grained, dune-bedded, cross-stratified with "pin-stripe" lamination. Well sorted, non-pebbly, mica very rare. |
| Definition of Lower Boundary: |
Interpreted to be disconformable at the base of the lowest sandstone with aeolian characteristics lying above pebbly, more poorly sorted (water-laid) sandstones/siltstones of Kidderminster Formation. |
| Definition of Upper Boundary: |
Conformable at base of lowest siltstone/mudstone of the overlying Maer Formation. |
| Thickness: |
c. 15-30m. |
| Geographical Limits: |
South of Swynnerton Fault in the Moddershall-Stone area, Staffordshire. |
| Parent Unit: |
Helsby Sandstone Formation (HEY)
|
| Previous Name(s): |
Kibblestone Formation [Obsolete name and code, use KBN)
(-5137)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Partial Type Section |
Cliff behind watermill, Kibblestone Scout Camp, Staffordshire. |
| Partial Type Section |
Road cutting, Vanity Lane, Oulton, Staffordshire. |
| Partial Type Section |
Road cutting, Stoke-on-Trent to Stone road, Staffordshire. |
| Reference(s): |
| Rees, J G and Wilson, A A. 1998. Geology of the country around Stoke-on-Trent. Memoir of the British Geological Survey, Sheet 123 (England and Wales). |
| Ambrose, K, Hough, E, Smith, N J P, and Warrington, G. 2014. Lithostratigraphy of the Sherwood Sandstone Group of England, Wales and south-west Scotland. British Geological Survey Research Report RR/14/01. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E123
|
