The BGS Lexicon of Named Rock Units — Result Details

Glencoe Volcanic Formation

Computer Code: GLVO Preferred Map Code: GLVO
Status Code: Full
Age range: Early Devonian Epoch (DL) — Early Devonian Epoch (DL)
Lithological Description: Andesitic lavas and sheets comprising flow laminated rhyolites, tuffs, tuffaceous breccias, minor sandstones, mudstones and conglomerates.
Definition of Lower Boundary: Unconformity with the Dalradian Supergroup below.
Definition of Upper Boundary: The top of the volcanic succession, which has been partly removed by erosion.
Thickness: Over 1000 m thickness presently exposed.
Geographical Limits: The Glen Coe area of Scotland.
Parent Unit: Not Applicable (-)
Previous Name(s): Volcanic Series Of Glen Coe (-1566)
Glen Coe Sedimentary "Series" [Obsolete Name And Code: Part Of GLVO] (GCS)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Outcrop on Bidean nam Bian, near Glen Coe McGarvie, 1999; Bailey, 1960. 
Reference(s):
Browne, M A E, Smith, R A and Aitken, A M. 2001. A lithostratigraphical framework for the Devonian (Old Red Sandstone) rocks of Scotland south of a line from Fort William to Aberdeen. Version 3. British Geological Survey Research Report RR/01/04. 
Moore, I and Kolekaar, B P. 1998. Tectonically controlled piecemeal caldera collapse; a case study of Glencoe Volcano, Scotland. Geological Society of America Bulletin, Vol. 110, Pt. 11, p. 1448-1466. 
Moore, I. 1995. The early history of the Glencoe cauldron. Unpublished PhD thesis, University of Liverpool. 
Bailey, E B. 1960. The geology of Ben Nevis and Glencoe and the surrounding country. (2nd edition). Memoir of the geological survey of Great Britain, Sheet 53 (Scotland), p. 132-152. 
McGarvie, D W. 1999. Bidean nam Bian. p.505 - 510 in Caledonian Igneous Rocks of Great Britain. Geological Conservation Review Series No. 17. Stephenson, D, and 6 others (editors). (Peterborough: Joint Nature Conservation Committee.) 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S054 S053