The BGS Lexicon of Named Rock Units — Result Details

Builth Volcanic Formation [Obsolete: use BUVO]

Computer Code: BUV Preferred Map Code: notEntered
Status Code: Index Level
Age range: Abereiddian Stage (O2) — Abereiddian Stage (O2)
Lithological Description: [Obsolete: use BUVO]
Definition of Lower Boundary: none recorded or not applicable
Definition of Upper Boundary: none recorded or not applicable
Thickness: none recorded or not applicable
Geographical Limits: none recorded or not applicable
Parent Unit: none recorded or not applicable
Previous Name(s): Builth Volcanic Group (BUVO)
The Builth Volcanic Series [Obsolete Name and Code: Use BUV] (-3257)
Builth Volcanic Group (BUVO)
Alternative Name(s): none recorded or not applicable
Stratotypes:
none recorded or not applicable
Reference(s):
George, T N. 1970. British Regional Geology, South Wales, Third Edition. British Geological Survey. 
Schofield, D I, Davies, J R, Waters, R A, Williams, M and Wilson, D. 2004. The Builth Wells District - a brief explanation of the geology. Sheet explanation of the British Geological Survey 1:50 000 Sheet 196 Builth Wells (England and Wales). (Keyworth, Nottingham: British Geological Survey). 
Jones, O T and Pugh, W J. 1941. The Ordovician rocks of the Builth District. A preliminary account. Geological Magazine, Vol.78, p.190. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable