"Quartz-diorite and trace dioritic-rock, gabbro and monzodiorite. Igneous intrusive bedrock. Occurs onshore. Emplaced during the Ludlow Epoch (Silurian Period) - to - Early Devonian Epoch (Devonian Period) (426.7-394.3 Ma BP)."@en . . "Glen Doll Pluton"@en . . . "394.3"^^ . "426.7"^^ . "Quartz-diorite and trace dioritic-rock, gabbro and monzodiorite."@en . "GDDI"@en . . . "Glen Doll Pluton"@en . . "stable"@en .