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Mg–Fe distribution between coexisting garnet and biotite, and the status of fibrolite in the andalusite–staurolite zone of the Mt Lofty Ranges, South Australia

Published online by Cambridge University Press:  01 May 2009

P. D. Fleming
P. D. Fleming*
Affiliation:
Department of Geology, University of Toronto Toronto 181, Canada
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Summary

The distribution of Fe and Mg between coexisting garnet and biotite from andalusite-staurolite zone rocks of the Mt Lofty Ranges is briefly discussed. The average value of the corresponding distribution coefficient, and those of some related parameters, are compared with the values proposed by a number of authors as being characteristic of certain metamorphic grades. From these comparisons it is concluded that despite their occurrence in a terrain in which fibrolite commonly occurs, the rocks have probably only experienced P-T conditions corresponding to those of the andalusite phase field, and that fibrolite has formed under similar conditions.

Type
Research Article
Information
Geological Magazine , Volume 109 , Issue 6 , November 1972 , pp. 477 - 482
Copyright
Copyright © Cambridge University Press 1972

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