. "Coal."@en . . "Corbie Craig Coal (Lothian)"@en . . "CORC"@en . "Coal. Stratified bedrock. Occurs onshore. Deposited during the Pendleian Substage (Carboniferous Period) (330.3-327 Ma BP)."@en . "327.0"^^ . "Corbie Craig Coal (Lothian)"@en . . . . "stable"@en . . "330.3"^^ . .