Calcite Deformation Twins: From Crystal Plasticity to Applications in Geosciences
A special issue of Geosciences (ISSN 2076-3263). This special issue belongs to the section "Structural Geology and Tectonics".
Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 17370
Special Issue Editor
Special Issue Information
Dear Colleagues,
E-twinning is a common plastic deformation mechanism in calcite crystals. Experimental work has allowed significant progress in our understanding of the initiation and growth of calcite twins and their controlling factors. Coevally, inversion techniques have been developed that allow for the determination of principal stress orientations and differential stress magnitudes from naturally deformed calcite-bearing rocks. Calcite twinning deformation has implications and applications in many fields of geosciences, such as mineralogy, rheology, petrophysics, tectonics, and reservoir studies. This Special Issue aims at gathering a series of high-quality, up-to-date papers dealing with every type of investigation on, or using, calcite twins: experimental or modeling work on twinning in calcite from synthetic or natural single grains and aggregates; relative contribution and timing of calcite twinning during progressive deformation of calcite aggregates under various pressure–temperature–stress–strain rate conditions; contribution of calcite twinning to the petrophysical and mechanical evolution of calcite-bearing rocks; calcite twins as paleothermometers; inversion of calcite twins for stress orientations and magnitudes; regional studies using calcite twins as paleostress/strain gauges and markers of tectonic regimes; comparison with other paleopiezometers in the brittle and ductile fields.
Prof. Dr. Olivier Lacombe
Guest Editor
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Keywords
- crystal plasticity
- mineralogy
- experiments and modeling
- stress and strain
- paleopiezometry
- petrophysics
- tectonics
- reservoirs
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