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An albitite from Ve Skerries, Shetland Isles

Published online by Cambridge University Press:  14 March 2018

Frederick Walker*
Affiliation:
Geology Department, University of St. Andrews

Extract

The Ve Skerries form a small group of rocks situated just over three miles WNW. of Papa Stour on the west coast of the Shetland Isles. Owing to the notoriously troubled state of the surrounding waters a landing can only rarely be ettected on them, and it is not, therefore, surprising that no account of their geology has yet appeared. Through the kindness of Mr. J. Glencorse Wakelin, Secretary to the Northern Lights Commissioners, the writer has been able to examine a large specimen of the constituent rock secured by Mr. Wakelin in 1930, and considered by him to be typical of the group. The results of this examination proved to be of considerable interest and are given below.

In the hand-specimen the rock is seen to be of even texture and medium grain. It is white in colour but is relieved by a few darkgreen or black spots and by very thin veins of haematite. In appearance it is not unlike an aplogranite, but examination under a handlens reveals the absence of quartz, while much of the felspar is seen to be twinned on the albite-law.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1932

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References

page 241 note 1 Heddle, M. F., Min. Mag., 1884, vol. 5, p. 141.CrossRefGoogle Scholar

page 242 note 1 Finlay, T. M., Trans. Roy. Soc. Edinburgh, 1930, vol. 56, pp. 676693.Google Scholar

page 242 note 2 Mem. Geol. Survey, Central Sutherland, 1931, p. 178.

page 242 note 3 Phillips, F. C., Geol. Mag., 1926, vol. 63, pp. 7277 CrossRefGoogle Scholar

page 242 note 4 J. Phemister, Mere. Geol. Survey, Strath Oykell and Lower Loeh Shin, 1926, p. 44

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