Crustal structure beneath Tien Shan orogenic belt and its adjacent regions from multi-scale seismic data

doi:10.1007/s11430-017-9068-0

	Crustal structure beneath Tien Shan orogenic belt and its adjacent regions from multi-scale seismic data
	Khan, NG (Khan, N. Ghani)1,2; Bai, L (Bai, Ling)2; Zhao, JM (Zhao, JunMeng)2; Li, GH (Li, GuoHui)2; Rahman, MM (Rahman, M. Moklesur)2; Cheng, C (Cheng, Cheng)2; Yang, JY (Yang, JianYa)2; Bai, L
刊名	SCIENCE CHINA-EARTH SCIENCES
	2017
卷号	60 期号:10 页码:1769-1782
关键词	Earthquake Location Algorithm Receiver Function Tomography Ambient Noise Tomography Wave Velocity Structure Hindu Kush Region Central-asia Deep-structure Upper-mantle Cenozoic Tectonics Dynamic Processes
DOI	10.1007/s11430-017-9068-0
文献子类	Article
英文摘要	As one of the world's most active intracontinental mountain belts, Tien Shan has posed questions for researchers regarding the formation of different tectonic units and active shallow seismicity. Here, we used a huge data set comprising of 7094 earthquakes from local, regional and teleseismic seismic stations. We used waveform modeling and multi-scale double-difference earthquake relocation technique to better constrain the source parameters of the earthquakes. The new set of events provided us with better initial earthquake locations for further tomographic investigation. We found that reverse-faulting earthquakes dominate the whole study area while the fault plane solutions for earthquakes beneath the northwestern Tarim Basin and the Main Pamir Thrust are diverse. There is a low-velocity anomaly beneath Bashkaingdy at depth of 80 km, and high-velocity anomalies beneath central Tien Shan at shallower depths. These observations are the keys to understand the mechanism of Tien Shan's formation because of Tarim Basin northward and Kazakh Shield's southward subduction in the south and north respectively. Velocities beneath western Tien Shan are relatively high. We thus infer that the Western Tien Shan is relatively less deformed than the eastern Tien Shan primarily due to a relatively brittle mantle.
学科主题	地质学
WOS研究方向	Geology
语种	英语
WOS记录号	WOS:000412466600003
内容类型	期刊论文
源URL	[http://ir.itpcas.ac.cn/handle/131C11/7979]
专题	青藏高原研究所_图书馆
通讯作者	Bai, L
作者单位	1.CIIT Ctr Hlth Res, Dept Earth Sci, Abbottabad 22060, Pakistan. 2.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Continental Collis & Plateau Uplift, Beijing 100101, Peoples R China.
推荐引用方式 GB/T 7714	Khan, NG ,Bai, L ,Zhao, JM ,et al. Crustal structure beneath Tien Shan orogenic belt and its adjacent regions from multi-scale seismic data[J]. SCIENCE CHINA-EARTH SCIENCES,2017,60(10):1769-1782.
APA	Khan, NG .,Bai, L .,Zhao, JM .,Li, GH .,Rahman, MM .,...&Bai, L.(2017).Crustal structure beneath Tien Shan orogenic belt and its adjacent regions from multi-scale seismic data.SCIENCE CHINA-EARTH SCIENCES,60(10),1769-1782.
MLA	Khan, NG ,et al."Crustal structure beneath Tien Shan orogenic belt and its adjacent regions from multi-scale seismic data".SCIENCE CHINA-EARTH SCIENCES 60.10(2017):1769-1782.