"Coal. Stratified bedrock. Occurs onshore. Deposited during the Langsettian Substage (Carboniferous Period) (319-318 Ma BP)."@en . "Balmoral Index Coal"@en . "stable"@en . . . "318.0"^^ . . "Balmoral Index Coal"@en . . "Coal."@en . "319.0"^^ . . "BINC"@en . . . .