The BGS Lexicon of Named Rock Units — Result Details

Brand Group

Computer Code: CBA Preferred Map Code: BrG
Status Code: Full
Age range: Comley Series (EC) — Comley Series (EC)
Lithological Description: The Group consists of quartz-arenites and turbiditic sandstones of the Lower Cambrian Brand Hills Formation, which in turn pass up to grey, cleaved mudrocks of the Swithland Formation.
Definition of Lower Boundary: The base of the Group is unexposed, but is inferred to be unconformable upon units of Neoproterozoic III age that include intrusive rocks of the South Charnwood Diorites and tuffaceous mudstones, siltstones and sandstones of the Bradgate Formation.
Definition of Upper Boundary: Not seen.
Thickness: 400m+
Geographical Limits: Extends from Groby Lodge area, north-eastwards to outskirts of Nanpantan, along the eastern edge of Charnwood Forest.
Parent Unit: Not Applicable (-)
Previous Name(s): Brand Series [Obsolete Name and Code: Use CBA] (-2054)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Reference Section  Charnwood Forest Golf Course. 
Reference Section  Brand Estate and Swithland Wood. 
Type Area  The Brand, Near Woodhouse Eaves, Leicestershire. 
Type Section  Bradgate Park. 
Reference(s):
McIlroy, D, Brasier, M D and Moseley J. 1998. The Proterozoic - Cambrian transition within the 'Charnian Supergroup' of central England and the antiquity of the Ediacara fauna. Journal of the Geological Society of London, Vol. 155, 401 - 413. 
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. 
Worssam, B C and Old, R A, 1988. Geology of the country around Coalville. Memoir of the British Geological Survey, Sheet 155 (England and Wales) 
Carney, J N. 1994. Geology of the Thringstone, Shepshed and Loughborough districts (SK41NW, SK41NE and SK51NW). British Geological Survey Technical Report WA/94/08. 
Watts, W W, 1896. Annual Report of the Geological Survey of Great Britain, for 1895, p.5. 
Watts, W W, 1947. Geology of the ancient rocks of Charnwood Forest, Leicestershire. Leicester: Leicester Literary and Philosophical Society. 
Fox-Strangways, C, 1900. The geology of the country between Atherstone and Charnwood Forest. Memoirs of the Geological Survey. (England and Wales). 
Harris, A L, 1975. A Correlation of Pre-Cambrian Rocks in the British Isles. Geological Society of London Special Report, No.6. 
Evans, A M, 1968. Pre-Cambrian rocks. A. Charnwood Forset. "In" Sylvester-Bradley, P C and Ford, T D. (Editors). The geology of the East Midlands, Leicester University Press. 
Moseley, J and Ford, T D, 1985. A stratigraphic revision of the Late Precambrian rocks of Charnwood Forest, Leicestershire. Mercian Geologist, Vol.10(I), 1-18. 
Fox-Strangways, C,1903. The geology of the country near Leicester. Memoir of the Geological Survey of Great Britain, Sheet 156 (England and Wales). 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E155 E141