Abstract
ABSTRACT The glaciation of the Shetland Islands still appears to be very difficult to analyse. The glacial drifts and the accompanying landforms are unquestionable but the origin of the ice and the amplitude of the glaciation remain to be precised. Our survey was principally carried out in the north west of Mainland and it concerns the Upper Devensian period. The strict Shetland glaciation was then a typical glacial sheet ; it had taken its origin in the depressions of the basement, and was widely extending on the archipelago, particularly in the eastern units now immergea. In the north west peninsula, the ice was flowing from East South East to West North West. The top of Ronas Hill was then acting as a nunatak suffering a periglacial evolution above the ice cover.
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