Grain-boundary migration microstructures in a naturally deformed quartzite

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Abstract

In this study several grain-scale microstructures are presented that are thought to demonstrate the migration direction of once-mobile grain boundaries in a naturally deformed quartzite. An analysis is presented of the sense of migration of the boundaries, and the characteristics of the patterns of relative grain growth and shrinkage. Grain-boundary migration seems to be correlated with the relative crystallographic orientations of neighbouring grains for the quartz-quartz grain boundaries, and the pattern of preferred grain growth is roughly symmetrical about the mica foliation plane.

Original languageEnglish
Pages (from-to)1007-1014
Number of pages8
JournalJournal of Structural Geology
Volume9
Issue number8
DOIs
Publication statusPublished - 1 Jan 1987
Externally publishedYes

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