"468.0"^^ . . "Ben Suardal Member"@en . "Ben Suardal Limestone [Obsolete: use BSLL]"@en . "Dolostone. Stratified bedrock. Occurs onshore. Deposited during the Arenig Series (Ordovician Period) (477.1-468 Ma BP)."@en . . . "BSLL"@en . . . . . "477.1"^^ . "stable"@en . "Ben Suardal Member"@en . . "Dolostone."@en . .