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DOI | 10.1002/2017GL075141 |
Crustal and Uppermost Mantle Structure Across the Tibet-Qinling Transition Zone in NE Tibet: Implications for Material Extrusion Beneath the Tibetan Plateau | |
Ye, Zhuo1; Li, Jiangtao2; Gao, Rui1,3; Song, Xiaodong2; Li, Qiusheng1; Li, Yingkang4; Xu, Xiao3; Huang, Xingfu1,3; Xiong, Xiaosong1; Li, Wenhui1 | |
2017-10-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:20 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | Based on a dense linear seismic array traversing the eastern margin of the Tibetan Plateau into the Qinling Belt, we conducted a joint inversion of receiver functions and surface wave dispersion curves under P wave velocity constraints and simultaneously derived a crustal and uppermost mantle Vs profile with a Vp/Vs profile. Our observations indicate that the Qinling Belt, of which the lower crust exhibits Vp/Vs values less than 1.8 that are indicative of an intermediate to felsic composition, is currently not serving as a channel accommodating the extrusion of middle to lower crustal materials of the Tibetan Plateau. Channelized ductile mantle flow from beneath the Tibetan Plateau through the Qinling Belt would be feasible only at sublithospheric depths (i.e., in the asthenosphere). Our results suggest that the extrusion of ductile middle to lower crustal materials accompanied by fault-related tectonics and isostatic buoyancy resulting from lithospheric detachment (triggered by asthenospheric flow) may have jointly engendered the plateau uplift and expansion in the Tibet-Qinling transition zone. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000416761600028 |
WOS关键词 | AMBIENT NOISE TOMOGRAPHY ; SURFACE-WAVE DISPERSION ; JOINT INVERSION ; RECEIVER FUNCTIONS ; LITHOSPHERIC DELAMINATION ; NORTHEASTERN TIBET ; SEISMIC EVIDENCE ; POISSONS RATIO ; SPLITTING DATA ; FLOW |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/27397 |
专题 | 气候变化 |
作者单位 | 1.Chinese Acad Geol Sci, Inst Geol, MLR, Key Lab Earthprobe & Geodynam, Beijing, Peoples R China; 2.Univ Illinois, Dept Geol, Champaign, IL USA; 3.Sun Yat Sen Univ, Sch Earth Sci & Engn, Guangzhou, Guangdong, Peoples R China; 4.China Geol Sample Informat Ctr, MLR, Yanjiao, Peoples R China |
推荐引用方式 GB/T 7714 | Ye, Zhuo,Li, Jiangtao,Gao, Rui,et al. Crustal and Uppermost Mantle Structure Across the Tibet-Qinling Transition Zone in NE Tibet: Implications for Material Extrusion Beneath the Tibetan Plateau[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(20). |
APA | Ye, Zhuo.,Li, Jiangtao.,Gao, Rui.,Song, Xiaodong.,Li, Qiusheng.,...&Li, Wenhui.(2017).Crustal and Uppermost Mantle Structure Across the Tibet-Qinling Transition Zone in NE Tibet: Implications for Material Extrusion Beneath the Tibetan Plateau.GEOPHYSICAL RESEARCH LETTERS,44(20). |
MLA | Ye, Zhuo,et al."Crustal and Uppermost Mantle Structure Across the Tibet-Qinling Transition Zone in NE Tibet: Implications for Material Extrusion Beneath the Tibetan Plateau".GEOPHYSICAL RESEARCH LETTERS 44.20(2017). |
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