Institutional Repository of Key Laboratory of Earth and Planetary Physics, Chinese Academy of Sciences
| Forced Cenozoic continental subduction of Tarim craton-like lithosphere below the Tianshan revealed by ambient noise tomography | |
| Sun, Weijia1; Ao, Songjian2; Tang, Qingya1; Malusa, Marco G.3; Zhao, Liang2; Xiao, Wenjiao2,4 | |
| 2022-12-01 | |
| Source Publication | GEOLOGY
 |
| ISSN | 0091-7613 |
| Volume | 50Issue:12Pages:1393-1397 |
| Abstract | The possibility that craton-like lithosphere may undergo subduction during convergence of major tectonic plates is still poorly investigated. We addressed this issue using ambient noise tomography of the Tarim Basin and the Tianshan (Central Asia). Our S-wave velocity model reveals a flat-lying high-velocity anomaly beneath the Tarim Basin in the 45-60 km depth range, consistent with intrusion of mafic rocks at the base of the lower crust above a depleted lithospheric mantle, as expected after interaction of the lithosphere with a mantle plume. This high-velocity anomaly can be followed northward, steeply dipping (similar to 45 degrees) beneath the Tianshan, which indicates that the Tarim craton-like lithosphere was subducted to mantle depths. It is connected with a fast P-wavespeed anomaly in the upper mantle, interpreted as a relict of the South Tianshan Ocean. A long period of tectonic quiescence, after the closure of the South Tianshan Ocean and before the Cenozoic tectonic rejuvenation of the Tianshan, suggests a minor role of oceanic slab pull in controlling continental subduction. The major player is instead the northward push of India within the framework of Cenozoic India-Asia convergence. We conclude that forced subduction can be experienced not only by thinned continental crust but also by a strong craton-like lithosphere. |
| DOI | 10.1130/G50510.1 |
| Funding Organization | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| WOS Keyword | SOUTH TIANSHAN ; TIEN-SHAN ; ASIA ; TECTONICS ; INSIGHTS ; NORTH ; PHASE ; OCEAN ; BELT |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[41888101] ; National Natural Science Foundation of China[42022026] ; National Natural Science Foundation of China[41822204] ; National Natural Science Foundation of China[41774060] |
| Funding Organization | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| WOS Research Area | Geology |
| WOS Subject | Geology |
| WOS ID | WOS:000911443000013 |
| Publisher | GEOLOGICAL SOC AMER, INC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.iggcas.ac.cn/handle/132A11/106841 |
| Collection | 地球与行星物理院重点实验室 岩石圈演化国家重点实验室 |
| Corresponding Author | Sun, Weijia; Ao, Songjian; Malusa, Marco G. |
| Affiliation | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 3.Univ Milano Bicocca, Dept Earth & Environm Sci, I-20126 Milan, Italy 4.Chinese Acad Sci, Xinjiang Res Ctr Mineral Resources, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China |
| First Author Affilication | Institute of Geology and Geophysics, Chinese Academy of Sciences |
| Corresponding Author Affilication | Institute of Geology and Geophysics, Chinese Academy of Sciences; State Key Laboratory of Lithospheric Evolution |
| Recommended Citation GB/T 7714 | Sun, Weijia,Ao, Songjian,Tang, Qingya,et al. Forced Cenozoic continental subduction of Tarim craton-like lithosphere below the Tianshan revealed by ambient noise tomography[J]. GEOLOGY,2022,50(12):1393-1397. |
| APA | Sun, Weijia,Ao, Songjian,Tang, Qingya,Malusa, Marco G.,Zhao, Liang,&Xiao, Wenjiao.(2022).Forced Cenozoic continental subduction of Tarim craton-like lithosphere below the Tianshan revealed by ambient noise tomography.GEOLOGY,50(12),1393-1397. |
| MLA | Sun, Weijia,et al."Forced Cenozoic continental subduction of Tarim craton-like lithosphere below the Tianshan revealed by ambient noise tomography".GEOLOGY 50.12(2022):1393-1397. |
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