"Corkerhill Clayband Ironstone"@en . "330.9"^^ . "Conformable."@en . "Bedrock. Occurs onshore. Formed during the Brigantian Substage (Carboniferous Period) (330.9-330.3 Ma BP)."@en . . "stable"@en . . . "330.3"^^ . . . "CORK"@en . "Corkerhill Clayband Ironstone"@en . "13\"."@en . "Blaes; CBI 5\"; Blaes 3' 0\"; CBI 9\"; Blaes."@en . "Conformable."@en . .