气候变化领域集成服务门户(CCPortal): Late cenozoic systematic left-lateral stream deflections along the Ganzi-Yushu fault, Xianshuihe fault system, eastern Tibet

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DOI	10.2747/0020-6814.50.7.624
	Late cenozoic systematic left-lateral stream deflections along the Ganzi-Yushu fault, Xianshuihe fault system, eastern Tibet
	Wang Shifeng; Erchie, Wang; Fang Xiaomin; Fu Bihong
通讯作者	Wang, SF (通讯作者)
发表日期	2008
ISSN	0020-6814
EISSN	1938-2839
起始页码	624
结束页码	635
卷号	50 期号:7
英文摘要	The Xianshuihe fault system (XSF) is one of the most active faults in eastern Tibet, China. In this Study, we document the distribution of stream deflections along the Ganzi-Yushu segment of the XSF at scales of 2.5 in to 80 km. The total offset along this fault suggests that left-lateral movement began at similar to 8-5.6 Ma if the Holocene slip rate has remained steady over this time interval. From Dengke in the southeast to Dangjiang in the northwest along the Ganzi-Yushu fault, the documented total geological offset decreases from similar to 80 to similar to 39 km, whereas the deflections of the Yalong. Batang,, Jielong, and Dangjiang rivers, almost all of which initiated around early Quaternary time, show gradually decreasing offsets from 30 +/- 2 km to 16 +/- 1 km in the same direction. This implies that about 41 km and 14 km offset are accommodated by transtensional and transpresional structures such as pull-apart basins and thrust faults along different parts of the fault at different times; this is also consistent with a northwestward decrease in the Holocene slip rate along the XSF, from 10 to 14 mm/yr around Dengke to similar to 7 mm/yr around Dangjiang. Thus the spatial and temporal evolution of stream patterns along the XSF supports the hypothesis that the tectonic evolution of eastern Tibet is largely characterized by distributed deformation.
关键词	NORTHERN TIBET KUNLUN FAULT CHINA ZONE ASIA DEFORMATION TECTONICS COLLISION PLATEAU SICHUAN
语种	英语
WOS研究方向	Geology
WOS类目	Geology
WOS记录号	WOS:000257171200002
来源期刊	INTERNATIONAL GEOLOGY REVIEW
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/257532
推荐引用方式 GB/T 7714	Wang Shifeng,Erchie, Wang,Fang Xiaomin,et al. Late cenozoic systematic left-lateral stream deflections along the Ganzi-Yushu fault, Xianshuihe fault system, eastern Tibet[J]. 中国科学院青藏高原研究所,2008,50(7).
APA	Wang Shifeng,Erchie, Wang,Fang Xiaomin,&Fu Bihong.(2008).Late cenozoic systematic left-lateral stream deflections along the Ganzi-Yushu fault, Xianshuihe fault system, eastern Tibet.INTERNATIONAL GEOLOGY REVIEW,50(7).
MLA	Wang Shifeng,et al."Late cenozoic systematic left-lateral stream deflections along the Ganzi-Yushu fault, Xianshuihe fault system, eastern Tibet".INTERNATIONAL GEOLOGY REVIEW 50.7(2008).