The structural geology of the North Roe area of Shetland

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Abstract
The metamorphic rocks forming the area are divided into four groups separated by easterly dipping shear zones. The two western groups are orthogneisses and the eastern two are metasediments. The structures indicate movements from east to west with the most westerly group of gneisses having been a stable block during the movements. The metamorphic and structural events in the area are considered to be part of the Caledonian Orogeny. A Devonian granophyre is intruded into the metamorphic rocks. Small areas of Devonian type sediments occur overlying the metamorphic rocks.

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