Abstract
Dislocations and other crystallographically controlled defects are now known to control both mechanical and geochemical behavior of minerals by a degree that is a function of the metamorphic and deformation history. Dislocation creep of some kind is undoubtedly the controlling mechanism for accommodating large plastic strains at sufficiently high temperatures and pressures (see Kirby, 1983, and references therein), and recent electron microscopy has led to an increased appreciation of the ability of defects to modify the chemical response of minerals to retrograde metamorphism. (Knipe and Wintsch, 1982). Despite this recent interest in dislocation mechanisms, a notable limitation of many of these applications is the lack of a realistic concept of the structure of a mineral dislocation and how the crystallography of mineral defects affects their transport, interaction, and chemical properties.
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Smith, B.K. (1985). The Influence of Defect Crystallography on Some Properties of Orthosilicates. In: Thompson, A.B., Rubie, D.C. (eds) Metamorphic Reactions. Advances in Physical Geochemistry, vol 4. Springer, New York, NY. https://doi.org/10.1007/978-1-4612-5066-1_4
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DOI: https://doi.org/10.1007/978-1-4612-5066-1_4
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