. "541.0"^^ . "Calcsilicate-rock with subsidiary metalimestone and psammite. Stratified bedrock. Occurs onshore. Deposited during the Neoproterozoic Era (Precambrian) (1000-541 Ma BP)."@en . "Glen Girnock Calcareous Formation"@en . "GGC"@en . . "Glen Girnock Calcareous Formation"@en . "Calcsilicate-rock with subsidiary metalimestone and psammite."@en . . . . "1000.0"^^ . "stable"@en . . . . . . . "Ben Lawers Schist [Obsolete: use BLAS]"@en .