Summary

The Dalradian rocks of the Craignish-Kilmelfort district form a part of the easterly dipping western limb of the Loch Awe syncline. The succession comprises phyllites, quartzites, limestones and grits which have been intruded by a large number of basic sills and sheets; this sequence is now in a low-grade metamorphic condition. Folding was initiated about a NNE.–SSW. axis, at first by flexure along the pre-existing bedding surfaces and later by slip along curved planes of slaty cleavage. Continuation of these movements, about the same axis, resulted in the development of a sequence of strain-slip and fracture cleavages; the final strain-slip cleavage is associated with steep E.–W. axial planes. The style and attitude of the minor structures are discussed in relation to the major structure.