sentences:  Several geological faults cut both the country rock and the dykes, the most significant being the north-south aligned Kames Bay Fault which extends from White Bay in the north to the bay from which it derives its name in the south.The youngest sedimentary rocks are the sandstones forming 'The Eileans' in Millport Bay whilst the Kelly Burn Sandstone is the oldest.In stratigraphical order (i.e.