Abstract
The distribution of impurity atoms (At. No. > 11) in two naturally deformed quartzites has been determined by microchemical analyses in a scannling transmission electron microscope. The study reveals impurity segregations at sub-grain boundaries and dislocations. The importance of the presence and segregation of impurities other than OH to quartz deformation studies is discussed. It is suggested that the potential role of these impurities on the development and behaviour of deformation microstructures warrants the inclusion of this previously neglected topic into future quartz deformation studies.
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