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On zoned associations of antigorite, talc, actinolite, chlorite, and biotite in Unst, Shetland Islands.

Published online by Cambridge University Press:  14 March 2018

H. H. Read
H. H. Read*
Affiliation:
University of Liverpool
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Extract

During my mapping for the Geological Survey in 1930 of the metamorphic rocks of western Unst, numerous small masses were encountered that were composed of a central part of talc followed outwards in order by zones of actinolite, chlorite, and biotite. Whilst revisiting the island in 1933 I was able to examine these associations in detail and to collect abundant material for study. As in many cases the zones are made up of a single mineral and may be a foot or so in thickness, specimens of great beauty are obtainable.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 23 , Issue 145 , June 1934 , pp. 519 - 540
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1934

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References

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