The BGS Lexicon of Named Rock Units — Result Details
Silver Hills Sandstone [Obsolete: use SILS]
| Computer Code: | SLVS | Preferred Map Code: | SlvS |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Arnsbergian Substage (CG) — Arnsbergian Substage (CG) | ||
| Lithological Description: | [Obsolete: use SILS] Fine- to very coarse-grained sandstone with thin coals and seatearths.Trough cross-bedding in sets up to 0.5m thick. Planar cross-bedding, small-scale cut-and-fill structures, syndepositional faults and slump structures have been recorded. | ||
| Definition of Lower Boundary: | Sandstone sharply overlies relatively thinly bedded and fine-grained sandstones and siltstones (Claughton Member or Keasden Flags). | ||
| Definition of Upper Boundary: | Sandstone is overlain sharply by mudstones with marine fauna (Crossdale Mudstone) including Isohomoceras subglobosum Marine Band in Crossdale Beck. | ||
| Thickness: | Kettles Beck 15.2m (50ft); Knott Copy Borehole c 34m; up to 90m on Settle (60) Sheet. | ||
| Geographical Limits: | Lancaster Fells. | ||
| Parent Unit: | none recorded or not applicable | ||
| Previous Name(s): | Heversham House Sandstone Member [Obsolete Name and Code: Use SLVS]
(-3038)
Heversham House Sandstone [Obsolete Name And Code: Use SLVS] (HHO) Silver Hills Grit [Obsolete Name and Code: Use SLVS] (-1188) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Type Section | Stream section upstream of Kettles Beck (Farm). | ||
| Reference Section | BGS Knott Coppy Borehole, 0.5km east of Black Bank (Farm). SD76SE/16 97.57 - 130.97m depth. | ||
| Reference Section | Crossdale Beck Valley. 4km south of High Bentham. | ||
| Reference(s): | |||
| Arthurton, R S, Johnson, E W, and Mundy, D J C. 1988. Geology of the country around Settle. Memoir of the British Geological Survey, Sheet 60 (England and Wales). | |||
| Bisat, W S, and Hudson, R G S. 1938. The Lower Reticuloceras (R1) goniatite succession in the Namurian of the North of England. Proceedings of the Yorkshire Geological Society, Vol. 24, 383-440. | |||
| Whittard, W F and Simpson, S, 1960. Upper Carboniferous of England, Wales and Scotland, "in" Whittard, W F and Simpson, S. Lexique Stratigraphique International, part 3a VIII, Vol.18. Centre National de la Recherche Scientifique, Paris. | |||
| 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. | |||
| Ellison, R A, 1991. Geology of Bentham. British Geological Survey Technical Report, WA/91/83. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| E060 E059 | |||