气候变化领域集成服务门户(CCPortal): Initiation of slip along the Xianshuihe fault zone, eastern Tibet, constrained by K/Ar and fission-track ages

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DOI	10.1080/00206810902945132
	Initiation of slip along the Xianshuihe fault zone, eastern Tibet, constrained by K/Ar and fission-track ages
	Wang, Shifeng; Fang, Xiaomin; Zheng, Dewen; Wang, Erchie
通讯作者	Wang, SF (通讯作者)
发表日期	2009
ISSN	0020-6814
EISSN	1938-2839
起始页码	1121
结束页码	1131
卷号	51 期号:12
英文摘要	The Xianshuihe fault zone (XFZ) forms a boundary that accommodates crustal movement eastwards from central Tibet. The lack of well-defined time constraints has hampered the reconstruction of the geometric and kinematic evolution of the fault zone, and inhibited the development of a consistent regional tectonic model. New geochronological investigations of mica K/Ar and apatite fission-track ages on the Ganzi-Yushu segment of the XFZ indicate that fault activity started ca. 13Ma before present, which considerably precedes the 5Ma initiation of offset on the Xiaojiang fault (XjF) segment. Different initiation times for different fault segments clearly demonstrate that the geometric and kinematic evolution of the XFZ can be divided into two periods. The XFZ cut through the Dangjiang, Ganzi, and Gongga Shan areas, and reached the Qinghe-Yanyuan area during an early stage, from ca. 13 to 5 Ma, as a boundary fault with lateral mass transfer from the interior to southeast Tibet. At the southern edge of the XFZ, the movement took advantage of the southern segment of the Longmen Shan thrust fault - the Jinhe-Qinghe thrust fault. During the late stage, from 5Ma to present, the fault zone passed through the Yushu, Ganzi, and Gongga Shan areas, then offset the Longmen Shan thrust fault belt and reached the Kunming area. The Jinhe-Qinghe fault was abandoned in the later period as the southern part of the XFZ, and the XjF became active because of continuous clockwise rotation of the crust around the eastern syntaxis.
关键词	WEST SICHUAN YUSHU FAULT PLATEAU DEFORMATION THERMOCHRONOLOGY APATITE MARGIN CHINA EMPLACEMENT TECTONICS
英文关键词	Ganzi-Yushu fault segment; Xianshuihe fault zone; K/Ar age; fission-track age; Longmen Shan thrust fault
语种	英语
WOS研究方向	Geology
WOS类目	Geology
WOS记录号	WOS:000272081200003
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/257650
推荐引用方式 GB/T 7714	Wang, Shifeng,Fang, Xiaomin,Zheng, Dewen,et al. Initiation of slip along the Xianshuihe fault zone, eastern Tibet, constrained by K/Ar and fission-track ages[J]. 中国科学院青藏高原研究所,2009,51(12).
APA	Wang, Shifeng,Fang, Xiaomin,Zheng, Dewen,&Wang, Erchie.(2009).Initiation of slip along the Xianshuihe fault zone, eastern Tibet, constrained by K/Ar and fission-track ages.INTERNATIONAL GEOLOGY REVIEW,51(12).
MLA	Wang, Shifeng,et al."Initiation of slip along the Xianshuihe fault zone, eastern Tibet, constrained by K/Ar and fission-track ages".INTERNATIONAL GEOLOGY REVIEW 51.12(2009).