The BGS Lexicon of Named Rock Units — Result Details
Coniston Group
| Computer Code: | CTG | Preferred Map Code: | CTG |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Gorstian Age (SG) — Gorstian Age (SG) | ||
| Lithological Description: | Sandstone, siltstone and laminated hemipelagite. NOTE: All component parts have individually defined type sections or areas. These cover the entire group: see Yewbank, Moorhowe, Poolscar, Latrigg and Gawthaite formations. | ||
| Definition of Lower Boundary: | Conformably overlies the Wray Castle Formation. | ||
| Definition of Upper Boundary: | Conformably overlain by the Bannisdale Formation. | ||
| Thickness: | 1400-1900m | ||
| Geographical Limits: | Southern Lake District and north-west Pennines. | ||
| Parent Unit: | Windermere Supergroup (WIN) | ||
| Previous Name(s): | Coniston Grits [Obsolete Name and Code: Use CTG]
(-3338)
Coniston Grit Formation [Obsolete Name and Code: Use CTG] (-2728) |
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| Alternative Name(s): | Coniston Subgroup |
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| Stratotypes: | |||
| none recorded or not applicable | |||
| Reference(s): | |||
| Kneller, B C. 1990. The Wenlock rocks of sheet 38 (Ambleside). British Geological Survey Technical Report, WA/90/64 | |||
| Marr J E. 1892. On the Wenlock and Ludlow strata of the Lake District. Geological Magazine, Vol. 9, p 534-541. | |||
| Lawrence, D J D, Webb, B C, Young, B and White, D E. 1986. The geology of the Late Ordovician and Silurian rocks (Windermere Group) in the area around Kentmere and Crook. Includes map, 1:25,000 series, Parts of Sheets NY40 and SD49 Kentmere and Crook, Solid and Drift Geology. Report of the British Geological Survey, 18/5. | |||
| Moseley F. 1984. Lower Palaeozoic lithostratigraphical classification in the English Lake District. Geological Journal, Vol. 19, p. 239-247. | |||
| 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.) | |||
| Waters, C N, Smith, K, Hopson, P M, Wilson, D, Bridge, D M, Carney, J N, Cooper, A H, Crofts, R G, Ellison, R A, Mathers, S J, Moorlock, B S P, Scrivener, R C, McMillan, A A, Ambrose, K, Barclay, W J, and Barron, A J M. 2007. Stratigraphical Chart of the United Kingdom: Southern Britain. British Geological Survey, 1 poster. | |||
| Cocks, L R M, Holland, C H and Rickards, B. 1992. A revised correlation of Silurian rocks in the British Isles. Geological Society of London Special Report. No.21, 32pp. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| E039 E038 E040 E048 E049 | |||