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Eclogitic amphibolites from the Grampian Moines

Published online by Cambridge University Press:  05 July 2018

A. J. Baker
A. J. Baker*
Affiliation:
Department of Earth Sciences, Oxford University, Parks Road, Oxford OX1 3PR
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Abstract

Amphibolites from the Grampian Moines of Scotland contain clinopyroxene-plagioclase symplectites and plagioclase-hornblende coronas around garnet. The clinopyroxene-plagioclase symplectites are interpreted as former omphacites. It is inferred that an eclogitic garne-tomphacite-quartz assemblage once existed, but has since undergone partial reaction to an amphibolite facies hornblende-plagioclase assemblage. An early high-pressure metamorphic event occurred in parts of the Moine.

Keywords

amphiboliteseclogitessymplectitescoronasMoinesGrampian Mountains
Type
Petrology
Information
Mineralogical Magazine , Volume 50 , Issue 356 , June 1986 , pp. 217 - 221
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1986

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Footnotes

*

Present address: Grant Institute of Geology, West Mains Road, Edinburgh EH9 3JW.

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