The BGS Lexicon of Named Rock Units — Result Details
Deerhope Formation
| Computer Code: | DHP | Preferred Map Code: | DHP |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Telychian Age (ST) — Telychian Age (ST) | ||
| Lithological Description: | Laminated fossiliferous siltstones, mudstones and shales, no sediment coarser than siltstone, bioturbation common in fine-grained sediment. Fossils include rugose corals, brachiopods, bivalves, trilobites and pelmatozoans. | ||
| Definition of Lower Boundary: | Conformable: at grey shales overlying highest Reservoir Formation, sandy siltstone. | ||
| Definition of Upper Boundary: | Conformable: red shales immediately underlying lowest Cock Rig Formation, medium-grained sandstones. | ||
| Thickness: | 390m in North Esk Inlier | ||
| Geographical Limits: | Pentland Hills, Midland Valley. | ||
| Parent Unit: | North Esk Group (NSK) | ||
| Previous Name(s): | Upper part of Reservoir Formation and lower part of Deerhope Formation [Obsolete Name and Code: Use DHP]
(-3360)
Deerhope Burn Flagstones [Obsolete Name And Code: Use DHP] (DHPF) Deerhope Siltstones [Obsolete Name And Code: Use DHP] (DHPS) Upper part of Bed A [Obsolete Name and Code: Use DHP] (-2151) Upper part of Bed B [Obsolete Name and Code: Use DHP] (-210) Upper part of beds at B [Obsolete Name and Code: Use DHP] (-1500) Upper part of Reservoir Beds and Deerhope Burn Flagstones [Obsolete Name and Code: Use DHP] (-1501) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Reference Section | North Esk river, 500m upstream of reservoir. | ||
| Type Section | Deerhope Burn, 700-1000m west of North Esk river. | ||
| Partial Type Section | North Esk river, 130m upstream of North Esk Reservoir. Boundary of Reservoir Formation and Deerhope Formation. | ||
| Reference(s): | |||
| Peach, B N and Horne, J. 1899. The Silurian Rocks of Britain, Volume 1. Scotland. Memoir of the Geological Survey of the United Kingdom. | |||
| Mitchell, G H. 1962. The geology of the neighbourhood of Edinburgh. (Explanation of Sheet 32) Third Edition. (Reprinted 1980). Memoir of the Geological Survey of Great Britain (Scotland). | |||
| Howell, H H and Geikie, A, 1861. The Geology of the neighbourhood of Edinburgh (1st edition). Memoir of the Geological Survey, Scotland. | |||
| Lamont, A, 1952. Ecology and correlation of the Pentlandian - a new division of the Silurian System in Scotland. 27-32 in Faunal and floral facies and zonal correlation. Dighton-Thomas, H (editor). Report of the 18th Session of the International Geological Congress, Great Britain, 1948, Pt.10. | |||
| Robertson, G, 1986. North Esk Inlier. 174-185 in Lothian Geology. An Excursion Guide. McAdam, A D and Clarkson, E N K (editors). [Edinburgh: Scottish Academic Press.] | |||
| Tipper, J C, 1976. The stratigraphy of the North Esk Inlier. Scottish Journal of Geology, Vol.12, Pt, 15-22. | |||
| Henderson, J and Brown, D J, 1870. On the Silurian rocks of the Pentland Hills. Transactions of the Edinburgh Geological Society, Vol.1, 266-272. | |||
| Robertson, G, 1989. A palaeoenvironmental interpretation of the Silurian rocks in the Pentland Hills, near Edinburgh, Scotland. Transactions of the Royal Society of Edinburgh: Earth Sciences, Vol.80, 127-141. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| S032 | |||