Subduction of the Indian slab into the mantle transition zone revealed by receiver functions
文献类型：期刊论文
| 作者 | Duan, Yaohui1,2; Tian, Xiaobo1,3; Liang, Xiaofeng1; Li, Wei1,2; Wu, Chenglong1,2 ; Zhou, Beibei1,2; Iqbal, Javed4
|
| 刊名 | TECTONOPHYSICS
 |
| 出版日期 | 2017-04-04 |
| 卷号 | 702页码:61-69 |
| 关键词 | Receiver Functions Mantle Transition Zone Indian Lithospheric Slab Tearing Lithospheric Detachment Himalayan-tibetan Collision Zone |
| ISSN号 | 0040-1951 |
| DOI | 10.1016/j.tecto.2017.02.025 |
| 文献子类 | Article |
| 英文摘要 | A large volume of continental lithosphere should have been emplaced beneath the Tibetan Plateau during the convergence between the Indian and Asian plates. However, geophysical studies have imaged an obviously thickened crust and a normal to slightly thickened mantle lithosphere beneath the plateau. Most of the additional mantle lithosphere is proposed to have detached and descended into the deep mantle to the mantle transition zone (MTZ). Recent studies suggest that the Indian lithospheric slab has torn into sections with different subduction angles. However, the locations of these slab sections, especially the high-angle one, require further structural constraints. Here, we used newly collected data from the broadband seismic network SANDWICH in central Tibet to study the thickness of the MTZ using the receiver function method. Our results show that there are two MTZ regions that are approximately 15 km thicker than the average one. One region is beneath the Lhasa terrane centered at 90 degrees E, 31 degrees N, and the other one is beneath the Qjangtang terrane centered at 881,33 degrees N. Because the upper and lower boundaries of the MTZ are both rock phase transition discontinuities that are sensitive to temperature. We interpret the thickened MTZ beneath the plateau as evidence of the presence of cold Indian slab and mantle lithosphere. The high-angle Indian lithospheric slab between the Yadong-Gulu Rift and the Pumqu-Xianza Rift is subducting deep into the MTZ, producing a decrease in temperature and thickening the MTZ beneath Lhasa terrane. In contrast, the Qiangtang anomaly corresponds to a piece of delaminated thickened Tibetan lithosphere. Based on the extensive distributions of Eocene to Oligocene potassic rocks and Mid-Miocene to Quaternary potassic rocks, we suggest that the thickened mantle lithosphere beneath the northern Qjangtang terrane and Songpan-Ganzi terrane detached in a piecewise manner, resulting in subsequent plateau uplift and recent potassic volcanism. (C) 2017 Elsevier B.V. All rights reserved. |
| WOS关键词 | BENEATH SOUTHERN TIBET ; LITHOSPHERE BENEATH ; TECTONIC EVOLUTION ; NORTHERN MARGIN ; PLATEAU ; TOMOGRAPHY ; COLLISION ; VELOCITIES ; EURASIA ; TIME |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000399511100006 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | Strategic Priority Research Program (B) of the Chinese Academy of Sciences(XDB03010700) ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences(XDB03010700) ; National Key Research and Development Project of China(2016YFC0600301) ; National Key Research and Development Project of China(2016YFC0600301) ; National Natural Science Foundation of China(41574048 ; National Natural Science Foundation of China(41574048 ; 41574056 ; 41574056 ; 41274066) ; 41274066) ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences(XDB03010700) ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences(XDB03010700) ; National Key Research and Development Project of China(2016YFC0600301) ; National Key Research and Development Project of China(2016YFC0600301) ; National Natural Science Foundation of China(41574048 ; National Natural Science Foundation of China(41574048 ; 41574056 ; 41574056 ; 41274066) ; 41274066) ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences(XDB03010700) ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences(XDB03010700) ; National Key Research and Development Project of China(2016YFC0600301) ; National Key Research and Development Project of China(2016YFC0600301) ; National Natural Science Foundation of China(41574048 ; National Natural Science Foundation of China(41574048 ; 41574056 ; 41574056 ; 41274066) ; 41274066) ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences(XDB03010700) ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences(XDB03010700) ; National Key Research and Development Project of China(2016YFC0600301) ; National Key Research and Development Project of China(2016YFC0600301) ; National Natural Science Foundation of China(41574048 ; National Natural Science Foundation of China(41574048 ; 41574056 ; 41574056 ; 41274066) ; 41274066) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/52959]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 通讯作者 | Tian, Xiaobo |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 4.Abbottabad Univ Sci & Technol, Dept Earth Sci, Khyber Pakhtunkhwa, Pakistan |
| 推荐引用方式 GB/T 7714 | Duan, Yaohui,Tian, Xiaobo,Liang, Xiaofeng,et al. Subduction of the Indian slab into the mantle transition zone revealed by receiver functions[J]. TECTONOPHYSICS,2017,702:61-69. |
| APA | Duan, Yaohui.,Tian, Xiaobo.,Liang, Xiaofeng.,Li, Wei.,Wu, Chenglong.,...&Iqbal, Javed.(2017).Subduction of the Indian slab into the mantle transition zone revealed by receiver functions.TECTONOPHYSICS,702,61-69. |
| MLA | Duan, Yaohui,et al."Subduction of the Indian slab into the mantle transition zone revealed by receiver functions".TECTONOPHYSICS 702(2017):61-69. |
入库方式： OAI收割
来源：地质与地球物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。