The BGS Lexicon of Named Rock Units — Result Details
Cocklett Scar Sandstone
Computer Code: | COSS | Preferred Map Code: | CoSS |
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Status Code: | Full | ||
Age range: | Arnsbergian Substage (CG) — Arnsbergian Substage (CG) | ||
Lithological Description: | Interbedded fine- to medium-grained, thin to thick-bedded sandstones and grey micaceous shaly siltstones. | ||
Definition of Lower Boundary: | Rapidly gradational at incoming of persistent sandstones interbedded with siltstones above shaly mudstones with siderite mudstones above the Eumorphoceras ferrimontanum Marine Band. | ||
Definition of Upper Boundary: | Rapidly gradational at top of persistent sandstones interbedded with siltstones below calcareous siltstones with very few sandstone beds of the Close Hill Siltstone. | ||
Thickness: | 60 - c.100m. | ||
Geographical Limits: | Lancaster Fells (Lancaster 1:50 000 sheet). | ||
Parent Unit: | Roeburndale Member (RBL) | ||
Previous Name(s): | Cocklett Scar Sandstone Member
(-812)
Cocklett Scar Flags [Obsolete Name and Code: Use COSS] (-157) Stonehead Sandstone [Obsolete Name And Code: Use COSS] (STO) |
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Alternative Name(s): | none recorded or not applicable | ||
Stratotypes: | |||
Partial Type Section | Cocklett Scar, a cliff in the north bank of Foxdale, 1400m upstream of Littledale Hall, Littledale, Caton, Lancaster. | ||
Reference Section | Incised gulley in Lythe Brow bank, 1600m northnortheast of Quernmore Church, Quernmore, Lancaster. | ||
Reference Section | Ragill Beck, 100m upstream from confluence with Deep Clough, Littledale area, Caton, Lancaster. | ||
Reference(s): | |||
Brandon, A, Aitkenhead, N, Crofts, R G, Ellison, R A, Evans, D J and Riley, JN J, 1998. Geology of the country around Lancaster. Memoir of the British Geological Survey, Sheet 59 (England and Wales). | |||
Brandon, A. 1992. Geology of the Littledale area. British Geological Survey Technical Report No. WA/92/16. | |||
Slinger, F C, 1936. Millstone Grit and glacial geology of Caton Moor near Lancaster. Report of the British Association for the Advancement of Science, Blackpool 1936, 345. | |||
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: | |||
E059 |