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Petrofabric Analyses of the Loch Tay Limestone from Strachur, Argyll

Published online by Cambridge University Press:  01 May 2009

Paul Gilmour  and
Max F. Carman
Paul Gilmour
Affiliation:
Grant Institute of Geology, University of Edinburgh.
Max F. Carman
Affiliation:
Grant Institute of Geology, University of Edinburgh.
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Abstract

The paper records the results of petrofabric analyses of four specimens of marble from the South-West Highlands of Scotland. The marble fabric has a high degree of homogeneity. Calcite grains are flattened in the foliation plane and are elongate in a direction normal to the fold axis. The c crystal axes lie in a distinct girdle about b, with a maximum near the pole of the foliation; the a crystal axes tend to occupy three maxima, one of which is close to b. Late twinning has occurred on {011¯12} apparently in response to a simple stress system, operating in the ac plane. The symmetry of the general calcite fabric, the twinning and the megascopic structures coincide.

Type
Articles
Information
Geological Magazine , Volume 91 , Issue 1 , February 1954 , pp. 49 - 60
Copyright
Copyright © Cambridge University Press 1954

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References

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