"318.0"^^ . . "Coal."@en . . "KEV"@en . . . "319.0"^^ . "Kennox Virtuewell Coal (Douglas)"@en . . . "stable"@en . "Coal. Stratified bedrock. Occurs onshore. Deposited during the Langsettian Substage (Carboniferous Period) (319-318 Ma BP)."@en . . "Kennox Virtuewell Coal (Douglas)"@en . .