气候变化领域集成服务门户(CCPortal): Drainage divide migration in response to strike-slip faulting: An example from northern Longmen Shan, eastern Tibet

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DOI	10.1016/j.tecto.2023.229720
	Drainage divide migration in response to strike-slip faulting: An example from northern Longmen Shan, eastern Tibet
	Zeng, Xun; Tan, Xibin
发表日期	2023
ISSN	0040-1951
EISSN	1879-3266
卷号	848
英文摘要	Drainage divides can become unstable due to tectonic disturbances and therefore can be used to constrain past tectonic activity. However, many studies have focused mainly on the influence of vertical motion with less attention on the drainage divide response to strike-slip faulting. How the drainage divide response to strike-slip faulting is still uninvestigated. Here we analyze the drainage divide stability along the Beichuan-Yingxiu Fault, an active dextral strike-slip fault with a reverse component in the Longmen Shan, on the eastern margin of the Tibetan Plateau. Based on activity of the Beichuan-Yingxiu Fault and response of the local landscape, we have identified a site in the Guixi area where a river capture event may occur in the near future, and a site in the Leigu area where a river capture event may have occurred. We used the chi-plot and Gilbert metrics methods to measure drainage divide stability at these two sites. The results show that (1) drainage divides near active strike-slip faults will be unstable before and after a capture event in response to strike-slip faulting and (2) before a capture event, the drainage divide on opposing sides of the strike-slip fault will migrate in opposite directions. This study systematically reveals the drainage divide migration generated in response to strike-slip faulting. We suggest that the drainage divide stability has the potential to be used to identify strike-slip fault activity and slip sense.
关键词	Drainage divide Strike-slip fault River network reorganization Longmen Shan Eastern Tibet
英文关键词	7.9 WENCHUAN EARTHQUAKE; TOPOGRAPHIC ANALYSIS; LANDSCAPE EVOLUTION; SHORT COMMUNICATION; THRUST BELT; LOW-RELIEF; PLATEAU; TECTONICS; MARGIN; UPLIFT
WOS研究方向	Geochemistry & Geophysics
WOS记录号	WOS:000926567800001
来源期刊	TECTONOPHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283100
作者单位	China Earthquake Administration; Chinese Academy of Sciences; Institute of Mountain Hazards & Environment, CAS
推荐引用方式 GB/T 7714	Zeng, Xun,Tan, Xibin. Drainage divide migration in response to strike-slip faulting: An example from northern Longmen Shan, eastern Tibet[J],2023,848.
APA	Zeng, Xun,&Tan, Xibin.(2023).Drainage divide migration in response to strike-slip faulting: An example from northern Longmen Shan, eastern Tibet.TECTONOPHYSICS,848.
MLA	Zeng, Xun,et al."Drainage divide migration in response to strike-slip faulting: An example from northern Longmen Shan, eastern Tibet".TECTONOPHYSICS 848(2023).