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Compositional variation within staurolite crystals from the Ardara aureole, Co. Donegal, Ireland

Published online by Cambridge University Press:  05 July 2018

J. A. T. Smellie
J. A. T. Smellie*
Affiliation:
Department of Geology, Queen's University, Belfast
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Summary

Staurolite crystals from the aureole of the Ardara pluton have been analysed using the electron microprobe. Compositional variations of TiO2, MnO, and MgO take the form of irregular zoning, differences across sector twin boundaries, and variable marginal compositions, and can be attributed mostly to disequilibrium and localized diffusion.

Type
Research Article
Information
Mineralogical Magazine , Volume 39 , Issue 306 , June 1974 , pp. 672 - 683
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1974

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