Seismic evidence for a Moho offset and south-directed thrust at the easternmost Qaidam-Kunlun boundary in the Northeast Tibetan plateau

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	Seismic evidence for a Moho offset and south-directed thrust at the easternmost Qaidam-Kunlun boundary in the Northeast Tibetan plateau
	Shi, DN (Shi, Danian); Shen, Y (Shen, Yang); Zhao, WJ (Zhao, Wenjin); Li, AB (Li, Aibing)
刊名	EARTH AND PLANETARY SCIENCE LETTERS
	2009
卷号	288 期号:1-2 页码:329-334
关键词	Kunlun mountains Qaidam basin receiver function imaging lithospheric structure crustal thickening Tibetan plateau
ISSN号	0012-821X
英文摘要	During 2006 to 2007, a small array of broadband seismic stations was deployed across the eastern Qaidam-Kunlun border. Receiver functions derived from this data set show a coherent P-to-S converted phase from the Moho at similar to 65 km to similar to 58 km below sea level (b.s.l.) from south to north beneath the Kunlun mountains. The Moho is observed at similar to 45 km b.s.l. beneath the Qaidam basin. A sharp offset of similar to 15 km in the Moho depth is observed just beneath the Qaidam-Kunlun border. The close correlation between the surface topography and the sharp Moho offset substantiates the view that the Kunlun crust is weaker than that of the Qaidam basin and thickens vertically in response to compression between India (through the Tibetan plateau) and the Qaidam basin. Furthermore, a strong steeply north-dipping converted phase can be seen from similar to 5 to 15 km b.s.l. north of the North Kunlun Fault, which is likely a major south-directed thrust fault partially responsible for the thickening of the Kunlun crust. (C) 2009 Elsevier B.V. All rights reserved.
学科主题	构造地质学
WOS关键词	MANTLE BENEATH TIBET ; TECTONIC EVOLUTION ; SUBDUCTION ; LITHOSPHERE ; OBLIQUE ; GEOLOGY ; GROWTH ; MARGIN ; WAVES ; CRUST
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000272788500033
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/38853]
专题	中国地质调查局
作者单位	Univ Houston, Dept Earth & Atmospher Sci, Houston, TX 77204 USA
推荐引用方式 GB/T 7714	Shi, DN ,Shen, Y ,Zhao, WJ ,et al. Seismic evidence for a Moho offset and south-directed thrust at the easternmost Qaidam-Kunlun boundary in the Northeast Tibetan plateau[J]. EARTH AND PLANETARY SCIENCE LETTERS,2009,288(1-2):329-334.
APA	Shi, DN ,Shen, Y ,Zhao, WJ ,&Li, AB .(2009).Seismic evidence for a Moho offset and south-directed thrust at the easternmost Qaidam-Kunlun boundary in the Northeast Tibetan plateau.EARTH AND PLANETARY SCIENCE LETTERS,288(1-2),329-334.
MLA	Shi, DN ,et al."Seismic evidence for a Moho offset and south-directed thrust at the easternmost Qaidam-Kunlun boundary in the Northeast Tibetan plateau".EARTH AND PLANETARY SCIENCE LETTERS 288.1-2(2009):329-334.