. . "stable"@en . . "Stratified bedrock. Occurs onshore. Deposited during the Bolsovian Substage (Carboniferous Period) (314.75-310 Ma BP)."@en . "314.75"^^ . "310.0"^^ . . . "Conisbrough Group"@en . . . "Conisbrough Group"@en . "CBGP"@en .