Benton Volcanic Group

Last updated
Group
Stratigraphic range: Ediacaran
Type Group
Lithology
Primary lavas
Other tuffs
Location
Region West Wales
CountryWales
Extent Daugleddau west to Talbenny, Pembrokeshire
Type section
Named for Benton 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. [1] [2] [3]

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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