气候变化领域集成服务门户(CCPortal): S-n velocity tomography beneath the Himalayan collision zone and surrounding regions

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DOI	10.5047/eps.2012.12.012
	S-n velocity tomography beneath the Himalayan collision zone and surrounding regions
	Lu, Yan; Liu, Bin; Ni, Sidao; Pei, Shunping
通讯作者	Lu, Y (通讯作者)
发表日期	2013
ISSN	1880-5981
起始页码	725
结束页码	730
卷号	65 期号:7
英文摘要	We present a tomographic S-n velocity model of the uppermost mantle beneath the Himalayan collision zone and surrounding regions. A total of 43,905 S-n phases are used in the investigation. The average S-n velocity in the study area is approximately 4.6 km/s, and the velocity perturbations reach 0.2 km/s. The S-n velocity distribution is consistent with P-n tomography results obtained previously. High velocities are found under the Indian plate, the Tarim Basin, and the Sichuan Basin, whereas low S-n velocities are found beneath the Myanmar region, the Hindu-Kush region, and the Lhasa block and western Qiangtang block. These results support the idea that the lithosphere of the Indian plate is subducted into the mantle and causes the upwelling of hot material. The east-west variability of the S-n velocity beneath the Indian plate and southern Tibet indicates that the underthrusting of the Indian continental lithosphere may be in a piecewise manner. The differences between the thermal structure of the crust and upper mantle in southern Tibet suggest that this region may be represented by a tectonic model of hot crust and cold mantle, supporting the idea that crustal material flow may occur in this region.
关键词	UPPERMOST MANTLE VELOCITIES TIBETAN PLATEAU CONTINENTAL COLLISION CRUSTAL DEFORMATION SEISMIC TOMOGRAPHY ANISOTROPY BENEATH WAVE-PROPAGATION SOUTHERN TIBET CHINA TRANSITION
英文关键词	S-n; velocity; tomography; Indian plate
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000324049700004
来源期刊	EARTH PLANETS AND SPACE
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/258161
推荐引用方式 GB/T 7714	Lu, Yan,Liu, Bin,Ni, Sidao,et al. S-n velocity tomography beneath the Himalayan collision zone and surrounding regions[J]. 中国科学院青藏高原研究所,2013,65(7).
APA	Lu, Yan,Liu, Bin,Ni, Sidao,&Pei, Shunping.(2013).S-n velocity tomography beneath the Himalayan collision zone and surrounding regions.EARTH PLANETS AND SPACE,65(7).
MLA	Lu, Yan,et al."S-n velocity tomography beneath the Himalayan collision zone and surrounding regions".EARTH PLANETS AND SPACE 65.7(2013).