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  • ...ed sedimentary rocks—the [http://www.bgs.ac.uk/Lexicon/lexicon.cfm?pub=PBV Benton Volcanic Group (Xtf )] of Milford Haven and Pebidian Supergroup (Xlv) of St David’s.
    8 KB (1,180 words) - 17:00, 28 July 2015
  • ...hin the Upper Carboniferous sequence, the Precambrian Johnston Complex and Benton Volcanic Group have been thrust northwards on the Johnston Thrust for some 4  km over
    12 KB (1,783 words) - 10:53, 5 May 2016