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Articles | Volume 11, issue 6
Articles | Volume 11, issue 6
https://doi.org/10.5194/se-11-2327-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/se-11-2327-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 11, issue 6
Research article
 | 
07 Dec 2020
Research article |  | 07 Dec 2020

Impact of upper mantle convection on lithosphere hyperextension and subsequent horizontally forced subduction initiation

Lorenzo G. Candioti, Stefan M. Schmalholz, and Thibault Duretz

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Short summary
With computer simulations, we study the interplay between thermo-mechanical processes in the lithosphere and the underlying upper mantle during a long-term (> 100 Myr) tectonic cycle of extension–cooling–convergence. The intensity of mantle convection is important for (i) subduction initiation, (ii) the development of single- or double-slab subduction zones, and (iii) the forces necessary to initiate subduction. Our models are applicable to the opening and closure of the western Alpine Tethys.
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