The BGS Lexicon of Named Rock Units — Result Details
Browgill Formation
| Computer Code: | BRW | Preferred Map Code: | BRW |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Telychian Age (ST) — Telychian Age (ST) | ||
| Lithological Description: | Laminated mudstone, siltstone and calcareous shale. | ||
| Definition of Lower Boundary: | Conformably overlies the Skelgill Formation. | ||
| Definition of Upper Boundary: | Conformably overlain by the Brathay Formation. | ||
| Thickness: | About 30m | ||
| Geographical Limits: | Southern Lake District and northwest Pennines. | ||
| Parent Unit: | Stockdale Group (STK) | ||
| Previous Name(s): | Browgill Member [Obsolete Name and Code: Use BRW]
(-3246)
Browgill Beds (-728) Browgill Shales [Obsolete Name And Code: Use BRW] (BGSH) Knock Beds [Obsolete Name and Code: Use BRW] (-1394) |
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| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Reference Section | Stockdale Beck. | ||
| Type Section | "The Rake" in Brow Gill. | ||
| Reference(s): | |||
| Moseley F. 1984. Lower Palaeozoic lithostratigraphical classification in the English Lake District. Geological Journal, Vol. 19, p. 239-247. | |||
| Hutt, J E, 1974. The Llandovery graptolites of the English Lake District Pt.1. Palaeontographical Society Monograph No.540, p.1-56. | |||
| Waters, C N, Gillespie, M R, Smith, K, Auton, C A, Floyd, J D, Leslie, A G, Millward, D, Mitchell, W I, McMillan, A A, Stone, P, Barron, A J M, Dean, M T, Hopson, P M, Krabbendam, M, Browne, M A E, Stephenson, D, Akhurst, M C, and Barnes, R P. 2007. Stratigraphical Chart of the United Kingdom: Northern Britain. (British Geological Survey.) | |||
| Marr, J E and Nicholson, H A, 1888. The Stockdale Shales. Quarterly Journal of the Geological Society of London, Vol.44, p.654-732. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| E039 E038 E024 E048 E031 | |||