Extensions to the Lewisian Inlier of Fannich Forest, Ross-shire
Four previously unmapped outcrops of Lewisian gneisses occur in Fannich Forest, Ross-shire. They include rocks with similar textures and mineralogy to other Lewisian rocks in Fannich, and whole-rock analysis confirms that they are compositionally similar to gneisses from the rest of the Fannich. Inlier, and from the Lewisian Foreland. The existing geological map hints that a structural and stratigraphic discontinuity exists between the geology of the north and south shores of Loch Fannich, but Lewisian rocks do outcrop south of the loch and no discrepancy exists. The late Fannich synform bifurcates towards the south, producing the double outcrop of Lewisian south of Loch Fannich.