. "310.0"^^ . "307.5"^^ . "stable"@en . "Beechwood Conglomerate Bed"@en . "Conglomerate. Stratified bedrock. Occurs onshore. Deposited during the Asturian Substage (Carboniferous Period) (310-307.5 Ma BP)."@en . . "Conglomerate."@en . . . . . "BCWC"@en . . "Beechwood Conglomerate Bed"@en . .