The BGS Lexicon of Named Rock Units — Result Details
Publow Member
| Computer Code: | PUB | Preferred Map Code: | notEntered |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Asturian Substage (CAS) — Stephanian Stage (CS) | ||
| Lithological Description: | Mainly a grey mudstone and siltstone, with subordinate sandstone and rare thin coals. The sandstones are typically of lithic 'Pennant' type, but also include massive quartzose sandstones. | ||
| Definition of Lower Boundary: | The base is taken at the Top of the Withy Mills Vein Coal in the Radstock Basin; top of the Forty Yard Vein Coal in the Pensford Basin. Underlain conformably by grey mudstones of the Radstock Member. | ||
| Definition of Upper Boundary: | The top of the grey mudstone and siltstone of the Publow Member is truncated by the Permo-Triassic unconformity, overlain by the red mudstones of the Mercia Mudstone Group. | ||
| Thickness: | A maximum thickness of 600 m is recorded in the Pensford Basin. | ||
| Geographical Limits: | Restricted to the Somerset Coalfield (ST 66). | ||
| Parent Unit: | Grovesend Formation (GDB) | ||
| Previous Name(s): | Publow Group [Obsolete Name and Code: Use PUB]
(-2987)
Publow Formation [Obsolete Name and Code: Use PUB] (-2382) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Type Area | Publow, Somerset, located in the Pensford Basin. Kellaway and Welch, 1993 | ||
| Reference Section | Hursley Hill Borehole ST66NW/20, from the base of the member at 306.6 m depth, to the top of the borehole; top of member not proved. Kellaway and Welch, 1993 | ||
| Reference(s): | |||
| Waters, C N, Barclay, W J, Davies, J R and Waters, R A. In press. Stratigraphical framework for Carboniferous successions of Southern Great Britain (Onshore). British Geological Survey Research Report, RR/05/06. | |||
| Kellaway, G A. 1969. The Upper Coal Measures of South-West England compared with those of South Wales and the Southern Midlands. Compe Rendu 6e Congres Internationale Stratigraphie et Geologie Carbonifere, Sheffield, 1967, Vol. 3, 1039-1055. | |||
| Kellaway, G A and Welch, F B A. 1993. Geology of the Bristol district. Memoir of the British Geological Survey Special Sheet [England and Wales]. | |||
| 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: | |||
| E281 E280 | |||