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DOI10.1029/2021GL095413
Structure and Stress Field of the Lithosphere Between Pamir and Tarim
Bloch, Wasja; Schurr, Bernd; Yuan, Xiaohui; Ratschbacher, Lothar; Reuter, Sanaa; Kufner, Sofia-Katerina; Xu, Qiang; Zhao, Junmeng
通讯作者Bloch, W (通讯作者)
发表日期2021
ISSN0094-8276
EISSN1944-8007
卷号48期号:22
英文摘要The Pamir plateau protrudes similar to 300 km between the Tajik- and Tarim-basin lithosphere of Central Asia. Whether its salient location and shape are caused by forceful indentation of a promontory of Indian mantle lithosphere is debated. We present a new local-seismicity and focal-mechanism catalog, and a P-wave velocity model of the eastern part of the collision system. The data suggest a south-dipping Asian slab that overturns in its easternmost segment. The largest principal stress at depth acts normal on the slab and is orientated parallel to the plate convergence direction. In front (south) of the Asian slab, a volume of mantle with elevated velocities and lined by weak seismicity constitutes the postulated Indian mantle indenter. We propose that the indenter delaminates and overturns the Asian slab, underthrusts the Tarim lithosphere along a compressive transform boundary, and controls the location and shape of the Pamir plateau.
关键词COLLISIONAL OROGENSEARTHQUAKESUBDUCTIONBENEATHZONETRANSFORMATIONDELAMINATIONTIBETANCRUSTALMODELS
英文关键词continental collision; Pamir; delamination; subduction
语种英语
WOS研究方向Geology
WOS类目Geosciences, Multidisciplinary
WOS记录号WOS:000723105600025
来源期刊GEOPHYSICAL RESEARCH LETTERS
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/260497
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GB/T 7714
Bloch, Wasja,Schurr, Bernd,Yuan, Xiaohui,et al. Structure and Stress Field of the Lithosphere Between Pamir and Tarim[J]. 中国科学院青藏高原研究所,2021,48(22).
APA Bloch, Wasja.,Schurr, Bernd.,Yuan, Xiaohui.,Ratschbacher, Lothar.,Reuter, Sanaa.,...&Zhao, Junmeng.(2021).Structure and Stress Field of the Lithosphere Between Pamir and Tarim.GEOPHYSICAL RESEARCH LETTERS,48(22).
MLA Bloch, Wasja,et al."Structure and Stress Field of the Lithosphere Between Pamir and Tarim".GEOPHYSICAL RESEARCH LETTERS 48.22(2021).
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