气候变化领域集成服务门户(CCPortal): Moho offset across the northern margin of the Tibetan Plateau

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DOI	10.1126/science.281.5380.1170
	Moho offset across the northern margin of the Tibetan Plateau
	Zhu L.; Helmberger D.V.
发表日期	1998
ISSN	0036-8075
起始页码	1170
结束页码	1172
卷号	281 期号:5380
英文摘要	Anomalous double-pulse teleseismic P-wave arrivals were observed at one station near the northern margin of the Tibetan Plateau. The azimuthal dependence of the waveform distortion and its absence at nearby stations indicated that the distortion was produced by receiver-side crustal heterogeneity. Modeling of the three-component data revealed a 15- to 20- kilometer Moho offset that occurs over a narrow lateral range of less than 5 kilometers. This east-west-striking offset separates the thick Tibetan Plateau crust from the Qaidam Basin crust. Such a sharp crustal thickness change implies a weak Tibetan Plateau crust that thickens vertically in response to penetration by India from the south and to blockage caused by a strong Qaidam Basin crust to the north.
英文关键词	Moho; seismic velocity; velocity structure; article; China; earthquake; geology; priority journal; waveform; China; Qinghai-Xizang Plateau; Tibetan Plateau; Moho
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246175
作者单位	Seismological Laboratory, California Institute of Technology, Pasadena, CA 91125, United States; S. California Earthquake Center, University of Southern California, Los Angeles, CA 90089, United States
推荐引用方式 GB/T 7714	Zhu L.,Helmberger D.V.. Moho offset across the northern margin of the Tibetan Plateau[J],1998,281(5380).
APA	Zhu L.,&Helmberger D.V..(1998).Moho offset across the northern margin of the Tibetan Plateau.Science,281(5380).
MLA	Zhu L.,et al."Moho offset across the northern margin of the Tibetan Plateau".Science 281.5380(1998).