"stable"@en . "412.4"^^ . "Keadew Formation"@en . . . "394.3"^^ . . . "KEAD"@en . . "Stratified bedrock. Occurs onshore. Deposited during the Pragian Age - to - Emsian Age (Devonian Period) (412.4-394.3 Ma BP)."@en . "Keadew Formation"@en .