Tectonic controls on surface erosion rates in the Longmen Shan, Eastern Tibet

Wei Wang​ (1) , Vincent Godard (2) , Jing Liu‐zeng (1, 3) , Jinyu Zhang (1) , Zhigang Li (4) , Sheng Xu (3) , Wenqian Yao (3) , Zhaode Yuan (1) , Georges Aumaitre (2) , Didier Bourlès (2) , Karim Keddadouche (2)

1 State Key Laboratory of Earthquake Dynamics
2 CEREGE - Centre européen de recherche et d'enseignement des géosciences de l'environnement
3 TJU - Tianjin University
4 Guangdong Provincial Key Laboratory of Geodynamics and Geohazards, School of Earth Sciences and Engineering, Sun Yat-Sen University

10 Be-derived catchment-wide denudation rates are positively correlated with topographic indices in the southern Longmen Shan.  Erosion rates are consistent over short-and long-term timescales across the Longmen Shan, suggesting an exhumational steady state.  Rock uplift pattern and topographic evolution across the Longmen Shan have been largely controlled by upper crustal shortening and fault geometry.

Keywords: active fault; denudation rate; Eastern Tibetan Plateau; Longmen Shan; tectonic

Domains: Sciences of the Universe [physics]; Earth Sciences; Geomorphology; Sciences of the Universe [physics]; Earth Sciences; Tectonics; Sciences of the Universe [physics]; Earth Sciences; Geochemistry

Wei Wang​, Vincent Godard, Jing Liu‐zeng, Jinyu Zhang, Zhigang Li, et al.. Tectonic controls on surface erosion rates in the Longmen Shan, Eastern Tibet. Tectonics, 2021, 40 (3), ⟨10.1029/2020TC006445⟩. ⟨hal-03172550⟩