. "132.6"^^ . "137.7"^^ . "Calcareous sandstone. Bedrock. Occurs onshore. Formed during the Valanginian Age (Cretaceous Period) (137.7-132.6 Ma BP)."@en . . . "Calcareous sandstone."@en . "Colgate Sandstone"@en . . "Colgate Sandstone"@en . "CGS"@en . . . . . "stable"@en .