Articles | Volume 29, issue 20
https://doi.org/10.5194/hess-29-5331-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-29-5331-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
20 Oct 2025
Research article |
| 20 Oct 2025
| 20 Oct 2025
Anhydrite dissolution dynamics as a hydrogeochemical tracer of seismic-fluid coupling: insights from the East Anatolian Fault Zone, Türkiye
Zebin Luo
School of Emergency Management, Xihua University, Chengdu 610039, China
Xiaocheng Zhou
CORRESPONDING AUTHOR
United Laboratory of High-Pressure Physics and Earthquake Science, Institute of Earthquake Forecasting, CEA, Beijing 100036, China
School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China
Yueren Xu
United Laboratory of High-Pressure Physics and Earthquake Science, Institute of Earthquake Forecasting, CEA, Beijing 100036, China
Peng Liang
United Laboratory of High-Pressure Physics and Earthquake Science, Institute of Earthquake Forecasting, CEA, Beijing 100036, China
Huiping Zhang
Institute of Geology, China Earthquake Administration, Beijing 100081, China
Jinlong Liang
College of Earth and Planetary Sciences, Chengdu University of Technology, Chengdu 610059, China
Zhaojun Zeng
United Laboratory of High-Pressure Physics and Earthquake Science, Institute of Earthquake Forecasting, CEA, Beijing 100036, China
Yucong Yan
School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China
Zheng Gong
Institute of Geophysics, China Earthquake Administration, Beijing 100081, China
Shiguang Wang
Institute of Geophysics, China Earthquake Administration, Beijing 100081, China
Chuanyou Li
Institute of Geology, China Earthquake Administration, Beijing 100081, China
Zhikun Ren
Institute of Geology, China Earthquake Administration, Beijing 100081, China
Jingxing Yu
Institute of Geology, China Earthquake Administration, Beijing 100081, China
Zifa Ma
Institute of Geology, China Earthquake Administration, Beijing 100081, China
Junjie Li
Institute of Geology, China Earthquake Administration, Beijing 100081, China
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Beida River has an over-steepened reach presently located 10 km upstream of the North Qilian mountain front. It was formed because river incising into the bedrocks inside the mountain cannot keep up with river incising into the soft sediment in the basin. We suggest this over-steepened reach represents a fast incision period 3–4 kyr ago, deepening the canyon for ~35 m within ~700 years. The formation of this reach corresponds to a humid period related to strong Southeast Asian Monsoon influence.
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Short summary
In this contribution, the East Anatolian Fault Zone groundwater observation data over the past 13 years are compared with the groundwater chemical composition after the double earthquakes in 2023 to tracing the origin of geothermal fluid, restore the water-rock interaction process, and evaluate the influence of seismic activity on the geothermal fluid circulation process.
In this contribution, the East Anatolian Fault Zone groundwater observation data over the past...
