Heterogeneous interseismic coupling along the Xianshuihe‐Xiaojiang fault system, eastern Tibet

2021 ◽  
Author(s):  
Yanchuan Li ◽  
Jean‐Mathieu Nocquet ◽  
Xinjian Shan ◽  
Huizi Jian
Keyword(s):  
Fault System ◽  
Eastern Tibet ◽  
Interseismic Coupling ◽  
Xiaojiang Fault

Newly-generated Daliangshan fault zone — Shortcutting on the central section of Xianshuihe-Xiaojiang fault system

2008 ◽  
Vol 51 (9) ◽  
pp. 1248-1258 ◽  
Author(s):  
HongLin He ◽  
Yasutaka Ikeda ◽  
YuLin He ◽  
Masayoshi Togo ◽  
Jie Chen ◽  
...  
Keyword(s):  
Fault Zone ◽  
Fault System ◽  
Central Section ◽  
Xiaojiang Fault

scholarly journals Soil Degassing From the Xianshuihe–Xiaojiang Fault System at the Eastern Boundary of the Chuan–Dian Rhombic Block, Southwest China

2021 ◽  
Vol 9 ◽  
Author(s):  
Yutao Sun ◽  
Xiaocheng Zhou ◽  
Yucong Yan ◽  
Jingchao Li ◽  
Wenya Fang ◽  
...  
Keyword(s):  
Hot Spring ◽  
Middle Part ◽  
Soil Gas ◽  
Fault System ◽  
The Tibetan Plateau ◽  
Seismic Zone ◽  
Fault Activity ◽  
Eastern Boundary ◽  
Soil Degassing ◽  
Xiaojiang Fault

The Chuan–Dian region, situated in the middle part of the north-south seismic zone of mainland China in a highly deformed area of the eastern margin of the Tibetan Plateau, is one of the principal areas for monitoring earthquake activities in China. In this study, the geochemical characteristics of soil degassing (of CH4, H2, CO2, Rn, and Hg) and, the relationship between degassing and fault activity, were investigated in the Xianshuihe–Xiaojiang fault system (XXFS) at the eastern boundary of the Chuan–Dian rhombic block. The mean soil-gas concentrations of CH4, H2, CO2, Rn, and Hg in the XXFS were 8.1 ppm, 9.9 ppm, 0.5%, 15.1 kBq/m3 and 12.9 ng/m3, respectively. The δ13CCO2 and δ13CCH4 values of the hot-spring gases varied from −11.9‰ to −3.7‰ and −62.5‰ to 17‰, respectively. The He-C isotopic ratios indicate that the carbon in the northern and middle parts of the XXFS may have originated from deep fluids, whereas the carbon in the southern part of the XXFS is of organic origin. The high concentrations of soil gas were distributed near the faults, indicating that the faults could act as channels for gas migration. The distributions of the high soil-gas concentrations in the XXFS coincide with the highest stress and maximum strain rates, indicating that the fault activity enhanced permeability and increased the emission rates of the gases. The results of this study will be helpful for degassing in active fault zones and earthquake monitoring.

The Jinhe–Qinghe fault—An inactive branch of the Xianshuihe–Xiaojiang fault zone, Eastern Tibet

2012 ◽  
Vol 544-545 ◽  
pp. 93-102 ◽  
Author(s):  
Wang Shifeng ◽  
Jiang Guiguo ◽  
Xu Tiande ◽  
Tian Yuntao ◽  
Zheng Dewen ◽  
...  
Keyword(s):  
Fault Zone ◽  
Eastern Tibet ◽  
Xiaojiang Fault

Temporally constant slip rate along the Ganzi fault, NW Xianshuihe fault system, eastern Tibet

2017 ◽  
Vol 130 (3-4) ◽  
pp. 396-410 ◽  
Author(s):  
Marie-Luce Chevalier ◽  
Philippe Hervé Leloup ◽  
Anne Replumaz ◽  
Jiawei Pan ◽  
Marianne Métois ◽  
...  
Keyword(s):  
Slip Rate ◽  
Fault System ◽  
Eastern Tibet
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