. "Igneous intrusive bedrock. Occurs onshore. Emplaced during the Paleogene Period (66-23.04 Ma BP)."@en . "23.04"^^ . . . "Ardnamurchan Dyke-Swarm"@en . "ARDN"@en . . "Ardnamurchan Dyke-Swarm"@en . . "stable"@en . "66.0"^^ . . .