Articles | Volume 8, issue 4
Solid Earth, 8, 767–788, 2017
https://doi.org/10.5194/se-8-767-2017

Special issue: Analysis of deformation microstructures and mechanisms on...

Solid Earth, 8, 767–788, 2017
https://doi.org/10.5194/se-8-767-2017

Research article 13 Jul 2017

Research article | 13 Jul 2017

Switching deformation mode and mechanisms during subduction of continental crust: a case study from Alpine Corsica

Giancarlo Molli et al.

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Short summary
We present a new case study on the role of brittle precursors in nucleating shear zone. Our studied sample shows a high-pressure, low-temperature (HP/LT) microscale ultramylonite developed by brittle precursors induced during deformation within a host HP/LT granitic mylonite. We infer that the studied structures may be considered as a small-scale example of fault structures related to stick-slip strain accommodation during subduction of continental crust.