Articles | Volume 16, issue 11
https://doi.org/10.5194/se-16-1383-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/se-16-1383-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
13 Nov 2025
Research article |
| 13 Nov 2025
| 13 Nov 2025
Crustal-upper mantle velocity structure from the North Qilian Shan to Beishan Orogenic Collage: tectonic significance of crustal deformation
State Key Laboratory of Deep Earth and Mineral Exploration, Chinese Academy of Geological Sciences, Beijing 100094, China
Yingkang Li
Geological Cores and Samples of Natural Resources, China Geological Survey, Sanhe 065201, China
Xuanhua Chen
State Key Laboratory of Deep Earth and Mineral Exploration, Chinese Academy of Geological Sciences, Beijing 100094, China
Guowei Wu
State Key Laboratory of Deep Earth and Mineral Exploration, Chinese Academy of Geological Sciences, Beijing 100094, China
Rui Gao
School of Earth Science and Geological Engineering, Sun Yat-sen University, Guangzhou 510275, China
Jennifer D. Eccles
School of Environment, University of Auckland, Auckland 1142, New Zealand
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Alan Liu Chen and Xuanhua Chen
Solid Earth, 16, 63–80, https://doi.org/10.5194/se-16-63-2025, https://doi.org/10.5194/se-16-63-2025, 2025
Short summary
Short summary
Based on the construction of a major fault system and investigation of several main boundaries of the Bohai Sea Basin, eastern China, we propose a right-lateral strike-slip fault between the eastern margin of the Liaodong Peninsula and the northwestern margin of the Jiaodong Peninsula. Then, we suggest that the two-direction extension perpendicular and parallel to the subduction zone should be the genesis of the Bohai Sea Basin and also the basic pattern of the back-arc extension.
Xinyu Dong, Wenhui Li, Zhanwu Lu, Xingfu Huang, and Rui Gao
EGUsphere, https://doi.org/10.5194/egusphere-2024-2468, https://doi.org/10.5194/egusphere-2024-2468, 2024
Preprint archived
Short summary
Short summary
Our study explores the Himalayas' formation and evolution, focusing on the South Tibetan Detachment System (STDS) and its impact on the North Himalayan gneiss domes. We conducted a deep seismic survey and field investigations in the eastern Tethys Himalayas. Our results show that the STDS is a significant fault system that had two phases of activity in the Miocene era. This research clarifies the geological processes that shaped the Himalayas.
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Short summary
New seismic data across the Qilian Shan–Beishan transect image a 47.5–60 km, five-layer crust with strong lateral heterogeneity. North-dipping mantle fabrics and a fossil slab beneath the Hongliuhe–Xichangjing ophiolite record Paleozoic northward subduction of both Qilian and Beishan oceans. The Altyn Tagh Fault is traced east-northeast along the Beishan southern margin into the Alxa Block.
New seismic data across the Qilian Shan–Beishan transect image a 47.5–60 km, five-layer crust...
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