. "Carrickmore Blackband Ironstone"@en . . "CBBI"@en . "Carrickmore Blackband Ironstone"@en . "Stratified bedrock. Occurs onshore. Deposited during the Visean Age (Carboniferous Period) (346.7-330.3 Ma BP)."@en . . "346.7"^^ . . . . . "330.3"^^ . "stable"@en .