2024
DOI: 10.22541/essoar.171052477.72968026/v1
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Evidence of Dislocation Mixed Climb in Quartz from the Moine and Main Central Thrusts: an Electron Tomography Study

Timmo Weidner,
Alexandre Mussi,
Olivier Castelnau
et al.

Abstract: In this study we apply electron tomography to characterize 3D dislocation microstructures in two highly sheared quartz mylonite specimens from the Moine and Main Central thrusts which were deformed extensively by dislocation creep in the presence of water. Both specimens show dislocation activity with dislocation densities of the order of 3-4.1012 m-2 and evidence of recovery from the presence of subgrain boundaries. slip occurs predominantly on pyramidal and prismatic planes ( basal glide is not active). [c] … Show more

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