"Hevdadale Intrusion"@en . . "Hornblende-gabbro with subsidiary dolerite and gabbro and trace granite."@en . . "394.3"^^ . "Hornblende-gabbro with subsidiary dolerite and gabbro and trace granite. Igneous intrusive bedrock. Occurs onshore. Emplaced during the Mid Devonian Epoch - to - Late Devonian Epoch (Devonian Period) (394.3-359.3 Ma BP)."@en . . "Hevdadale Intrusion"@en . . . "stable"@en . . "HVDD"@en . "359.3"^^ .