Archaean and Proterozoic
Excietment today as we got to go on another ferry! This time to the Isle of Iona. Today we looked at the oldest rocks on our trip the Lesisian orthogneiss which are over lain, unconformably, by the Iona group – approximate to the Torridonian sast previously seen at Inchnadamph. The majority of the day was spent mapping contacts along the coast in some rare sunshine. With time to kill waiting for the ferry we were free to explore the Abbey (and it’s very young geological history), taking pictures of baby lambs and paddling at the beach.