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Articles | Volume 16, issue 10
Articles | Volume 16, issue 10
https://doi.org/10.5194/se-16-929-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/se-16-929-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 16, issue 10
Research article
 | 
07 Oct 2025
Research article |  | 07 Oct 2025

Cross-scale strain analysis in the Afar rift (East Africa) from automatic fault mapping and geodesy

Alessandro La Rosa, Pauline Gayrin, Sascha Brune, Carolina Pagli, Ameha A. Muluneh, Gianmaria Tortelli, and Derek Keir

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Latest update: 07 Oct 2025
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Short summary
We propose a new method to map faults automatically in digital elevation models (DEMs) and measure long-term crustal deformation in rift contexts. By combining our data with rock ages, we reconstruct rift evolution in Afar during the last 4.5 Myr. We show that the rift axis is most active, with rifting propagating north-west over time. Here magma promotes crustal deformation and faulting caused by dike opening. In the southern sector Afar, two fault systems respond to different motions of diverging tectonic plates.
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