气候变化领域集成服务门户(CCPortal): Complex deformation pattern of the Pamir-Hindu Kush region inferred from multi-scale double-difference earthquake relocations

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DOI	10.1016/j.tecto.2014.11.006
	Complex deformation pattern of the Pamir-Hindu Kush region inferred from multi-scale double-difference earthquake relocations
	Bai, Ling; Zhang, Tianzhong
通讯作者	Bai, L (通讯作者)
发表日期	2015
ISSN	0040-1951
EISSN	1879-3266
起始页码	177
结束页码	184
卷号	638
英文摘要	The wide range of focal depths and the corresponding fault plane mechanisms in the Pamir-Hindu Mush region are believed to reflect the ongoing deformation along the Indian-Eurasian continental collision zone. Here we develop a multi-scale double-difference earthquake location algorithm to combine traveltime data recorded at local, regional and teleseismic distances. The 2906 relocated intermediate-depth earthquakes of M-w >= 4.5 we studied beneath the Hindu Mush show two groups of seismicity, with a separation of ca. 20-30 km; these two groups exhibit thrust faults with different P-axes and different locations, reflecting the lateral geometry change of the seismic zone. Earthquakes beneath the Pamir present a clear south-dipping layer and unusual horizontal T-axes. There is a clear transition in direction of stress between the Hindu Kush and the Pamir regions. Here we focus on the complex deformation pattern beneath the continental collision zone arising from a combination of compression, tension, shearing and necking states. (C) 2014 Elsevier B.V. All rights reserved.
关键词	FAULT PLANE SOLUTIONS DOUBLE SEISMIC ZONE LOCATION ALGORITHM BENEATH HIMALAYA TIBET
英文关键词	Earthquake relocation; Focal mechanism; Continental-collision zone; Pamir-Hindu Kush; Deformation pattern
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000348266400010
来源期刊	TECTONOPHYSICS
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/258448
推荐引用方式 GB/T 7714	Bai, Ling,Zhang, Tianzhong. Complex deformation pattern of the Pamir-Hindu Kush region inferred from multi-scale double-difference earthquake relocations[J]. 中国科学院青藏高原研究所,2015,638.
APA	Bai, Ling,&Zhang, Tianzhong.(2015).Complex deformation pattern of the Pamir-Hindu Kush region inferred from multi-scale double-difference earthquake relocations.TECTONOPHYSICS,638.
MLA	Bai, Ling,et al."Complex deformation pattern of the Pamir-Hindu Kush region inferred from multi-scale double-difference earthquake relocations".TECTONOPHYSICS 638(2015).