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Articles | Volume 7, issue 2
Articles | Volume 7, issue 2
https://doi.org/10.5194/se-7-355-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Special issue:
https://doi.org/10.5194/se-7-355-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 7, issue 2
Research article
 | 
08 Mar 2016
Research article |  | 08 Mar 2016

Strain localization in ultramylonitic marbles by simultaneous activation of dislocation motion and grain boundary sliding (Syros, Greece)

A. Rogowitz, J. C. White, and B. Grasemann

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Short summary
This paper discusses the processes resulting in extreme strain localization (gamma up to 1000) in an almost pure calcite marble located in Syros, Greece. We observed grain size reduction by bulging recrystallization, followed by the simultaneous activation of grain boundary sliding and a dislocation motion in conditions (high differential stress, high strain rate, low temperature) in which brittle deformation rather than ductile flow might be suspected.
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Deformation mechanisms and ductile strain localization in...