OSL dating of offset streams across the Altyn Tagh Fault: Channel deflection, loess deposition and implication for the slip rate

doi:10.1016/j.tecto.2013.04.002

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 中国科学院新生代地质与环境重点实验室

	OSL dating of offset streams across the Altyn Tagh Fault: Channel deflection, loess deposition and implication for the slip rate
	Chen, Yiwei 1; Li, Sheng-Hua 1; Sun, Jimin 2; Fu, Bihong 2
刊名	TECTONOPHYSICS
	2013-05-24
卷号	594 页码:182-194
关键词	Altyn Tagh Fault Deflected Stream Osl Dating Loess Slip Rate
DOI	10.1016/j.tecto.2013.04.002
文献子类	Article
英文摘要	Two deflected streams flowing across the Altyn Tagh Fault (ATF) were investigated at the Aksay segment, NW China. Due to strike of the ATF, stream channels are deflected and elongated by adding new sections along the fault line. After subsequent water erosion and fluvial refreshment, banks of these deflected streams are overlain by aeolian loess. Geomorphological features suggest that stream deflections along the fault were developed as a result of faulting activities and displacements were progressively accumulated from multiple faulting cycles. Each faulting cycle is composed of faulting event triggered elongation of channels, creation of stream banks or risers and subsequent aeolian loess deposition on the banks. A model is proposed to illustrate the relationship between fault movement and loess deposition, which is supported by OSL dating of the loess on the offset stream channels. Our results demonstrated that: (I) loess deposits along deflected streams can be used to trace fault slip history, given specific geomorphic assumptions discussed in the text; and (2) based on stream channel offsets and loess ages, the Holocene slip rate of the ATF is estimated to be 11 +/- 2 mm/year along the Aksay segment. (c) 2013 Elsevier B.V. All rights reserved.
WOS关键词	HIMALAYAN-TIBETAN OROGEN ; QILIAN-SHAN ; CONTINENTAL COLLISION ; ACTIVE DEFORMATION ; NORTHERN TIBET ; NW CHINA ; LUMINESCENCE ; SEDIMENTATION ; HOLOCENE ; PLATEAU
WOS研究方向	Geochemistry & Geophysics
语种	英语
WOS记录号	WOS:000319791100014
资助机构	Research Grant Council of the Hong Kong Special Administrative Region, China(7035/07P ; Research Grant Council of the Hong Kong Special Administrative Region, China(7035/07P ; 7028/08P) ; 7028/08P) ; Research Grant Council of the Hong Kong Special Administrative Region, China(7035/07P ; Research Grant Council of the Hong Kong Special Administrative Region, China(7035/07P ; 7028/08P) ; 7028/08P)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/62650]
专题	地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
作者单位	1.Univ Hong Kong, Dept Earth Sci, Hong Kong, Hong Kong, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Chen, Yiwei,Li, Sheng-Hua,Sun, Jimin,et al. OSL dating of offset streams across the Altyn Tagh Fault: Channel deflection, loess deposition and implication for the slip rate[J]. TECTONOPHYSICS,2013,594:182-194.
APA	Chen, Yiwei,Li, Sheng-Hua,Sun, Jimin,&Fu, Bihong.(2013).OSL dating of offset streams across the Altyn Tagh Fault: Channel deflection, loess deposition and implication for the slip rate.TECTONOPHYSICS,594,182-194.
MLA	Chen, Yiwei,et al."OSL dating of offset streams across the Altyn Tagh Fault: Channel deflection, loess deposition and implication for the slip rate".TECTONOPHYSICS 594(2013):182-194.