Fabien Ramel, Philippe Vernant, Jean-François Ritz, Erik Doerflinger, Erdenezul Danzansan, Dulguun Ayush, Alain Chauvet, Ulzibat Munkhuu, and Sodnomsambuu Demberel
A first block modeling study of the Mongolian Altay is presented, based on a new GNSS dataset acquired across the range with an innovative setup. Our results show that approximately 4–6 mm.yr-1 of dextral strike-slip motion is accommodated across the ~400 km-wide Altay deformation zone, consistent with previous geodetic estimates. Compared to the more scattered and heterogeneous slip rate estimates from morphotectonic studies, our results provide improved constraints on slip rates along the main Altay faults. Combining knowledge about fault activity across Altay with our results we also discuss the potential role of other unmodeled intra-block structures in accommodating deformation in the Altay and its periphery. This also leads us to question the highest previously reported slip rates—particularly along the Har-Us-Nuur and Fu-Yun faults.
Received: 10 Oct 2025 – Discussion started: 03 Nov 2025
Publisher's note: Copernicus Publications remains neutral with regard to jurisdictional claims made in the text, published maps, institutional affiliations, or any other geographical representation in this paper. While Copernicus Publications makes every effort to include appropriate place names, the final responsibility lies with the authors. Views expressed in the text are those of the authors and do not necessarily reflect the views of the publisher.
Fabien Ramel, Philippe Vernant, Jean-François Ritz, Erik Doerflinger, Erdenezul Danzansan, Dulguun Ayush, Alain Chauvet, Ulzibat Munkhuu, and Sodnomsambuu Demberel
Fabien Ramel, Philippe Vernant, Jean-François Ritz, Erik Doerflinger, Erdenezul Danzansan, Dulguun Ayush, Alain Chauvet, Ulzibat Munkhuu, and Sodnomsambuu Demberel
Metrics will be available soon.
Latest update: 03 Nov 2025
