The BGS Lexicon of Named Rock Units — Result Details

Reservoir Formation

Computer Code: RSVR Preferred Map Code: RSVR
Status Code: Full
Age range: Telychian Age (ST) — Telychian Age (ST)
Lithological Description: Mudstones and shales interbedded with siltstones and fine-grained sandstones.
Definition of Lower Boundary: Not exposed.
Definition of Upper Boundary: Conformable below Deerhope Formation: at top of highest sandy siltstone bed showing internal structures typical of Bouma sequence.
Thickness: At least 1080m in North Esk Inlier. c.800m exposed in Bavelaw Castle Inlier.
Geographical Limits: Pentland Hills, Midland Valley.
Parent Unit: North Esk Group (NSK)
Previous Name(s): Reservoir Formation [Obsolete Code: See RSVR] (RVF)
Bed A, Excluding Upper Part (-1150)
Beds At A, A1 And Lower Part Of B (-1797)
Bed A and lower part of Bed B (-4306)
Reservoir Beds [Obsolete Name And Code: See RSVR] (RVRB)
Reservoir Formation (RSVR)
Alternative Name(s): none recorded or not applicable
Reference Section  Gutterford Burn, from entry into North Esk Reservoir to 1200m upstream. 
Reference Section  Cliff, 400m SW of W end of Loganlee Reservoir, Loganlee Inlier, Pentland Hills. 
Type Section  North Esk River and Reservoir shore, North Esk Inlier, Pentland Hills. 
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). 
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. 
Howell, H H and Geikie, A, 1861. The Geology of the neighbourhood of Edinburgh (1st edition). Memoir of the Geological Survey, Scotland. 
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. 
Bull, E, 1987. Upper Llandovery Dendroid Graptolites from the Pentland Hills, Scotland. Palaeontology, Vol.30, Pt.1, 17-20. 
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.] 
Peach, B N and Horne, J. 1899. The Silurian Rocks of Britain, Volume 1. Scotland. Memoir of the Geological Survey of the United Kingdom. 
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. 
Tipper, J C, 1976. The stratigraphy of the North Esk Inlier. Scottish Journal of Geology, Vol.12, Pt, 15-22. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S032 S032