气候变化领域集成服务门户(CCPortal): Seismic reflection imaging of crustal deformation within the eastern Yarlung-Zangbo suture zone

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DOI	10.1016/j.tecto.2020.228395
	Seismic reflection imaging of crustal deformation within the eastern Yarlung-Zangbo suture zone
	Dong X.; Li W.; Lu Z.; Huang X.; Gao R.
发表日期	2020
ISSN	00401951
卷号	780
英文摘要	Various models have been proposed to explain formational mechanisms for the Himalayan orogeny but uncertainties remain concerning uplift processes and deeper crustal structure of the orogen. Imaging of the orogen's deep structure can help resolve these uncertainties. This paper describes one migrated deep seismic reflection profile across the eastern Yarlung-zangbo suture (YZS) at 92° E, which provides a high resolution image of crustal structure that reveals (1) Yarlhashampo dome is divided into upper, middle and lower tectonic units by two detachments from rim, mantle to the core of dome, (2) one blind north-dipping reverse fault that offsets the South Tibet detachment (STD) developed along the northern flank of the Yarlhashampo dome, (3) a shift of the Main Himalayan thrust (MHT) dip angle from 18° into relatively gentle dips (6°) in the central part of the profile (18–20 s, t.w.t). Meantime, further inferring that (4) North-south compression event happened after ca.10 Ma in North Himalayas, (5) multi-stage duplexing as the primary mechanism for crustal thickening in the eastern YZS based on interpreted structures. © 2020 Elsevier B.V.
关键词	Crustal structure Deep seismic reflection profile Himalayan orogenic belt Tectonic deformation Yarlung-Zangbo suture
英文关键词	Deformation; Domes; Faulting; Seismology; Crustal structure; Deep seismic reflection profiles; Orogenic belts; Tectonic deformations; Yarlung-Zangbo suture; Seismic waves; crustal deformation; crustal structure; crustal thickening; detachment fault; dome; image resolution; orogenic belt; reverse fault; seismic reflection; suture zone; Himalayas; Indus-Yarlung Suture Zone
语种	英语
来源期刊	Tectonophysics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207737
作者单位	School of Earth Sciences and Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, 519082, China; Institute of Geology, Chinese Academy of Geological Sciences, Beijing, 100037, China; Key Laboratory of Deep-Earth Dynamics of Ministry of Natural Resources, MNR, Beijing, 100037, China
推荐引用方式 GB/T 7714	Dong X.,Li W.,Lu Z.,et al. Seismic reflection imaging of crustal deformation within the eastern Yarlung-Zangbo suture zone[J],2020,780.
APA	Dong X.,Li W.,Lu Z.,Huang X.,&Gao R..(2020).Seismic reflection imaging of crustal deformation within the eastern Yarlung-Zangbo suture zone.Tectonophysics,780.
MLA	Dong X.,et al."Seismic reflection imaging of crustal deformation within the eastern Yarlung-Zangbo suture zone".Tectonophysics 780(2020).