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Distribution of Fe and Mg between garnet and biotite in Scottish Barrovian metamorphic zones

Published online by Cambridge University Press:  05 July 2018

E. Baltatzis
E. Baltatzis*
Affiliation:
National University of Athens, Institute of Mineralogy and Petrology, Panepistimiopolis, Ano Ilissia, Athens (621), Greece
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Summary

The distribution coefficient KD = (Mg/ Fe)garnet/(Mg/Fe)biotite has been calculated for eight garnet-biotite pairs from rocks ranging from the garnet isograd to the staurolite zone along the Stonehaven coast of NE Scotland. This distribution coefficient depends upon metamorphic temperature and is not dependent upon the Mn and Ca content of garnet. Garnet-biotite geothermometer yields temperatures of about 500, 550, and 575–620°C for the garnet, chloritoid + staurolite, and staurolite zones respectively.

Type
Research Article
Information
Mineralogical Magazine , Volume 43 , Issue 325 , March 1979 , pp. 155 - 157
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1979

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