The geology of Islay is amazingly varied – 1800 Ma gneiss, Precambrian metasediments and fossil stromatolites, the famous Port Askaig Tillite (possible “Snowball Earth”?), low grade metamorphic Dalradian rocks retaining original sedimentary structures, reactivated and reversed extensional faults, substantial mineralisation, 60 Ma igneous intrusions (opening of the Atlantic Ocean) and a large selection of Quaternary Ice Age features. We plan to visit key localities with the aid of “A Guide to the Geology of Islay” by David Webster, Roger Anderton & Alasdair Skelton.
Leader: David Webster
Field days: Friday(afternoon)/Saturday/Sunday/Monday(morning)
Accommodation will be B & B in Bowmore; transport will be in shared cars.
This trip is now fully booked. However, there is a waiting list. If you are interested please contact the Residential Excursions Secretary, Maggie Donnelly, at email@example.com.