| Computer Code: |
CLW |
Preferred Map Code: |
notEntered |
| Status Code: |
Pending Upgrade |
| Age range: |
Anisian Age (TA)
— Ladinian Age (TD) |
| Lithological Description: |
See Warrington et al., 1980; Howard et al., 2008. |
| Definition of Lower Boundary: |
none recorded or not applicable
|
| Definition of Upper Boundary: |
none recorded or not applicable
|
| Thickness: |
none recorded or not applicable
|
| Geographical Limits: |
East Midlands Shelf South. |
| Parent Unit: |
Tarporley Siltstone Formation (TPSF)
|
| Previous Name(s): |
Colwick Formation [Obsolete Name and Code: Use CLW]
(-3944)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| none recorded or not applicable |
| Reference(s): |
| Charsley, T J, Rathbone, P A, and Lowe, D J. 1990. Nottingham: A geological background for planning and development. British Geological Survey Technical Report WA/90/1. |
| Howard, A S, Warrington, G, Ambrose, K, and Rees, J G. 2008. A formational framework for the Mercia Mudstone Group (Triassic) of England and Wales. British Geological Survey Research Report, RR/08/04. |
| Warrington, G, Audley-Charles, M G, Elliott, R E, Evans, W B, Ivimey-Cook, H C, Kent, P E, Robinson, P L, Shotton, F W and Taylor, F M. 1980. A correlation of the Triassic rocks in the British Isles. Special Report of the Geological Society of London, No.13. |
| Elliott, R E. 1961. The stratigraphy of the Keuper Series in southern Notinghamshire. Proceedings of the Yorkshire Geological Society, Vol. 33, 197-231. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
