Geology of Skye with the development of an ice cap centred on the Cuillin and Red Hills. The main ice sheet that flowed westwards from the Scottish mainland was diverted around this upland area. The island is covered by large areas of glacial till, left behind when the ice melted. Geology of Skye The geology of Skye in Scotland is highly variable and the island's landscape reflects changes in the underlying nature of the rocks. A wide range of rock types are exposed on the island, sedimentary, metamorphic and igneous, ranging in age from the Archaean through to the Quaternary. The oldest rocks
Scottish island names Shetland, and Kirk Rocks in Orkney. Great Cumbrae and Little Cumbrae are English/Brythonic in derivation and there are other examples of the use of "great" and "little" such as Great Bernera and Rysa Little which are English/Gaelic and Norse/English respectively. The informal use of "Isle of" is commonplace, although only the Isle of Ewe, the Isle of May and Isle Martin of the larger Scottish islands use this nomenclature in a formal sense. "Island" also occurs, as in Island Macaskin and Mealista Island although both islands are also known by their Gaelic names of "Eilean Macaskin" and "Eilean Mhealasta". Holy