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Benton Volcanic Group

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Lithostratigraphic group in Wales
Group
Stratigraphic range: Ediacaran
TypeGroup
Lithology
Primarylavas
Othertuffs
Location
RegionWest Wales
CountryWales
ExtentDaugleddau west to Talbenny, Pembrokeshire
Type section
Named forBenton Castle

The Benton Volcanic Group is an Ediacaran lithostratigraphic group (a sequence of rock strata) in Pembrokeshire, Wales. The name is derived from the locality of Benton Castle in mid Pembrokeshire. It has previously been known as the Benton Volcanic Series or simply the Benton Series. They include lavas of trachytic and rhyolitic composition together with lesser amounts of red and green silicic tuffs and are found as apparently faulted blocks between the Daugleddau and west to Talbenny.

References

  1. British Geological Survey 1:50,000 scale geological map (England & Wales) sheet 228 Haverfordwest
  2. British Geological Survey 1:50,000 scale geological map (England & Wales) sheet 226/227 Milford
  3. https://webapps.bgs.ac.uk/Lexicon/lexicon.cfm?pub=PBV (BGS on-line lexicon of rock units)
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