RussCheshire, North Britain Palaeogene Dyke Suite (Arran Tertiary Dyke Swarm) (66 - 23.03 mya) cutting through Auchenhew Mudstone Formation (252.2 - 237 mya). On the horizon, Ailsa Craig - an igneous pluton also dating from the Palaeogene period.
RussCheshire, North Britain Palaeogene Dyke Suite (Arran Tertiary Dyke Swarm) (66 - 23.03 mya) cutting through Auchenhew Mudstone Formation (252.2 - 237 mya). On the horizon, Ailsa Craig - an igneous pluton also dating from the Palaeogene period.