"330.3"^^ . "stable"@en . . "BNBI"@en . . . "Ironstone. Stratified bedrock. Occurs onshore. Deposited during the Pendleian Substage (Carboniferous Period) (330.3-327 Ma BP)."@en . . "Banton Blackband Ironstone"@en . "327.0"^^ . . "Ironstone."@en . "Banton Blackband Ironstone"@en . . . .