Folding associated with the Igneous centres; dalradian exposures
Around Loch Don the Great Glen fault brings a small amount of dalradian rocks on Mull. The succession has then been deformed and folded in response to the emplacement of the igneous centres. The Loch Don anticline brings dalradian schists to the surface in the core of the fold.
Conveniently … our last stop was next to the ferry terminal! Originally called Craignurite a cone sheet from centre 1 can be seen cross cutting (pretty messed up) Triassic conglomerates (exposed in the craignure anticline). The cone sheet consists of a devitified rhyolite with spherical undervitrified patches.
A final session of skimming stones signifies the end of the geology part of the fieldtrip. A much needed nap on the ferry home and now we can look forward to dry feet 🙂