Geophysical evidence for deep subduction of Indian lithospheric plate beneath Eastern Himalayan Syntaxis

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	Geophysical evidence for deep subduction of Indian lithospheric plate beneath Eastern Himalayan Syntaxis
	Jiang, M (Jiang Mei); Peng, M (Peng Miao); Wang, YX (Wang YouXue); Tan, HD (Tan HanDong); Li, QQ (Li QingQing); Zhang, LS (Zhang LiShu); Wang, W (Wang Wei)
刊名	ACTA PETROLOGICA SINICA
	2012
卷号	28 期号:6 特刊 SI 页码:1755-1764
关键词	Broadband Magnetotellurics Slab deep subduction Eastern Himalayan Syntaxis Himalaya
ISSN号	1000-0569
英文摘要	We conducted broadband seismic observation and MT detection around the Namche Barwa from 2009 to 2010. P wave velocity perturbations clown to 300km were obtained and two electrical models were acquired by 2D inversion. There are similar features between electrical models and the corresponding tomographic images by joint interpretation. Our results show that the upper crust of Namche Barwa is separated by IYS and consists of prominent high-velocity and resistive blocks. The mid-lower crust is inhomogenous and characterized by low-velocity and conductive anomaly. The Indian lithospheric mantle has subducted beneath Eurasian plate and its frontier has passed through the Jiali shear zone and reached the Bangong-Nujiang suture; A large-scale low-velocity anomaly is revealed within the Lhasa block beneath the high-velocity plate from 100km to 200km depth, above which the mid-lower crust is an extensive low-velocity conductor. This suggests that there exist channels beneath southeastern Tibetan Plateau favorable to weak and flowable materials exuding towards east and southeast, which gives geophysical evidence for the dynamics mode of deep-subduction of Indian Plate beneath the Namche Barwa.
学科主题	构造地质学
WOS关键词	NONLINEAR CONJUGATE GRADIENTS ; UPPER-MANTLE BENEATH ; MAGNETOTELLURIC INVERSION ; TIBET COLLISION ; XIZANG PLATEAU ; WESTERN TIBET ; HI-CLIMB ; P-WAVE ; TECTONICS ; CRUST
WOS研究方向	Geology
语种	中文
出版者	SCIENCE PRESS
WOS记录号	WOS:000305817000005
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/39717]
专题	中国地质调查局
作者单位	Guilin Univ Technol, Sch Earth Sci, Guilin 541004, Peoples R China
推荐引用方式 GB/T 7714	Jiang, M ,Peng, M ,Wang, YX ,et al. Geophysical evidence for deep subduction of Indian lithospheric plate beneath Eastern Himalayan Syntaxis[J]. ACTA PETROLOGICA SINICA,2012,28(6 特刊 SI):1755-1764.
APA	Jiang, M .,Peng, M .,Wang, YX .,Tan, HD .,Li, QQ .,...&Wang, W .(2012).Geophysical evidence for deep subduction of Indian lithospheric plate beneath Eastern Himalayan Syntaxis.ACTA PETROLOGICA SINICA,28(6 特刊 SI),1755-1764.
MLA	Jiang, M ,et al."Geophysical evidence for deep subduction of Indian lithospheric plate beneath Eastern Himalayan Syntaxis".ACTA PETROLOGICA SINICA 28.6 特刊 SI(2012):1755-1764.