"1000.0"^^ . "stable"@en . "Gairbeinn Psammite Formation [Obsolete: use BMPP, GABR]"@en . "Sharp but conformable boundary with overlying Core nan Laogh Semipelite. Contact locally sheared, probably a disconformity."@en . . "Feldspathic psammite, micaceous psammite and schistose semipelite."@en . . . . "Not exposed."@en . "Garva Bridge Psammite Formation"@en . . . "GABR"@en . "min. 2 km."@en . "541.0"^^ . . . "Psammite with subsidiary micaceous psammite and schistose semipelite. Stratified bedrock. Occurs onshore. Deposited during the Neoproterozoic Era (Precambrian) (1000-541 Ma BP)."@en . . "Garva Bridge Psammite Formation"@en . .