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Articles | Volume 15, issue 9
Articles | Volume 15, issue 9
https://doi.org/10.5194/se-15-1113-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/se-15-1113-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 15, issue 9
Research article
 | 
12 Sep 2024
Research article |  | 12 Sep 2024

How a volcanic arc influences back-arc extension: insight from 2D numerical models

Duo Zhang and J. Huw Davies

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Latest update: 29 Jul 2025
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Short summary
We numerically model the influence of an arc on back-arc extension. The arc is simulated by placing a hot region on the overriding plate. We investigate how plate ages and properties of the hot region affect back-arc extension and present regime diagrams illustrating the nature of back-arc extension for these models. We find that back-arc extension occurs not only in the hot region but also, surprisingly, away from it, and a hot region facilitates extension on the overriding plate.
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