The BGS Lexicon of Named Rock Units — Result Details

Tintagel Group

Computer Code: TGP Preferred Map Code: notEntered
Status Code: Full, pending ratification
Age range: Courceyan Substage (CF) — Arundian Substage (CJ)
Lithological Description: Grey-black slates with siltstones and carbonate nodules, and limestone; coarse- and fine-grained tuffs also occur with agglomerate and lavas.
Definition of Lower Boundary: Drawn at base of grey-black slates of the Barras Nose Formation where they rest apparently conformably on grey slates of the Yeolmbridge Formation.
Definition of Upper Boundary: Drawn at unconformable upward passage from grey-black banded slates of the Trambley Cove Formation to green slates and limestone of the Buckator Formation.
Thickness: About 135m
Geographical Limits: Southwest England.
Parent Unit: Not Entered (?)
Previous Name(s): Tintagel Volcanic Series (-3079)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Tintagel, Devon, England. 
Reference(s):
Bisson, G and others, 1967. South-western district. Annual Report of the Institute of Geological Science, 1966, p.57. 
Freshney, E C. 1972. Geology of the coast between Tintagel and Bude. Memoirs of the Geological Survey of Great Britain. 
Edmonds, E A and others, 1975. South-west England. British Regional Geology. 
House, M R, Richardson, J B, Chaloner, W G, Allen, J R L, Holland, C H and Westoll, T S. 1977. A Correlation of Devonian rocks of the British Isles. Geological Society of London, Special Report No.8, Scottish Academic Press, Edinburgh. 
McKeown, M C, Edmonds, E A, Williams, M, Freshney, E C and Masson Smith, D J. 1973. Geology of the country around Boscastle and Holsworthy. Memoir of the British Geological Survey, sheets 322 and 323 (England and Wales). 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable