The BGS Lexicon of Named Rock Units — Result Details
Kirkham Mudstone Member
| Computer Code: | KRM | Preferred Map Code: | notEntered |
|---|---|---|---|
| Status Code: | Pending Upgrade | ||
| Age range: | Anisian Age (TA) — Ladinian Age (TD) | ||
| Lithological Description: | Originally defined as a Formation (Wilson and Evans, 1990) the unit is retained but with Member rank as part of the nationally recognized Sidmouth Mudstone Formation (Howard et al., 2008). Mudstone. Anisian - Ladinian. | ||
| 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: | none recorded or not applicable | ||
| Parent Unit: | Sidmouth Mudstone Formation (SIM) | ||
| Previous Name(s): | Coat Walls Mudstone [Obsolete Name and Code: Use KRM]
(-4579)
Coat Walls Mudstone Member [Obsolete Name and Code: Use KRM] (CWMU) Thornton Mudstone Member [Obsolete Name and Code: Use KRM] (THMU) Kirkham Mudstone Formation [Obsolete Name and Code: Use KRM] (-2274) Thornton Mudstone [Obsolete Name and Code: Use KRM, THMU] (-2880) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| none recorded or not applicable | |||
| Reference(s): | |||
| 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. | |||
| Wilson, A A and Evans, W B. 1990 Geology of the country around Blackpool. Memoir of the British Geological Survey, Sheet 66. (England and Wales). | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| E074 E075 E066 E067 E058 E048 | |||