气候变化领域集成服务门户(CCPortal): Crustal and upper mantle velocity structure beneath central Tibet by P-wave teleseismic tomography

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DOI	10.1111/j.1365-246X.2012.05582.x
	Crustal and upper mantle velocity structure beneath central Tibet by P-wave teleseismic tomography
	Zhang, Heng; Zhao, Junmeng; Xu, Qiang
通讯作者	Zhang, H (通讯作者)
发表日期	2012
ISSN	0956-540X
起始页码	1325
结束页码	1334
卷号	190 期号:3
英文摘要	A detailed 3-D P-wave velocity model beneath central Tibet was obtained using 26 741 arrival times from 1025 teleseismic events recorded by the portable stations of the Hi-CLIMB project. In the crustal correction, we consider both vertical and lateral velocity variations. Our teleseismic P-wave tomography result reveals that the Indian lithospheric mantle underthrusts no further than 32.5 degrees N. In addition, the presence of low velocity anomalies under the Indus-Tsangpo suture suggests that subduction is not a simple and continuous process. We suggest that the delamination of Indian mantle lithosphere induces mantle upwelling beneath the rifts, which in turn created cracks or a break in the subducted plate. Moreover, the formation of active rifts near the profile is related to the mantle upwelling.
关键词	INDIAN LITHOSPHERE BENEATH HI-CLIMB EXPERIMENT SOUTHERN TIBET PLATEAU SUBDUCTION EVOLUTION HIMALAYA DEFORMATION CONVERGENCE COLLISION
英文关键词	Tomography; Mantle processes; Subduction zone processes; Asia
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000307571100003
来源期刊	GEOPHYSICAL JOURNAL INTERNATIONAL
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/257965
推荐引用方式 GB/T 7714	Zhang, Heng,Zhao, Junmeng,Xu, Qiang. Crustal and upper mantle velocity structure beneath central Tibet by P-wave teleseismic tomography[J]. 中国科学院青藏高原研究所,2012,190(3).
APA	Zhang, Heng,Zhao, Junmeng,&Xu, Qiang.(2012).Crustal and upper mantle velocity structure beneath central Tibet by P-wave teleseismic tomography.GEOPHYSICAL JOURNAL INTERNATIONAL,190(3).
MLA	Zhang, Heng,et al."Crustal and upper mantle velocity structure beneath central Tibet by P-wave teleseismic tomography".GEOPHYSICAL JOURNAL INTERNATIONAL 190.3(2012).