Upper crustal velocity structure of the Ailaoshan-Red River shear zone and its implication for Cenozoic tectonic-magmatic activity: Evidence from ambient noise tomography using short-period dense seismic array
文献类型：期刊论文
| 作者 | Zheng, Mengjie2,4; Bai, Zhiming2; Xu, Tao1,2; Badal, Jose3 |
| 刊名 | PHYSICS OF THE EARTH AND PLANETARY INTERIORS
 |
| 出版日期 | 2021-02-01 |
| 卷号 | 311页码:12 |
| 关键词 | Dense short-period array Ambient noise tomography Cenozoic magmatism Ailaoshan-Red River shear zone |
| ISSN号 | 0031-9201 |
| DOI | 10.1016/j.pepi.2021.106643 |
| 英文摘要 | The southern part of the Ailaoshan-Red River shear zone (ARRSZ) in southern Yunnan, is an important gold-bearing polymetallic metallogenic belt of China. To better understand the metallogenic tectonic setting and the magmatic activity in the area, we deployed a 240-km-long quasi-linear seismic array with numerous short-period stations spaced about 500 m across the ARRSZ. The shear-velocity structure of the upper crust along the survey profile is determined by ambient noise tomography using continuously recorded waveform data. The results show: (1) An upper crust characterized by a laterally varying S-velocity pattern and two high velocity bodies: one located mainly below the Ailaoshan metallogenic belt and the other further east below the Pingbian area, which are separated by a low velocity zone beneath the Red River Fault. (2) The upper crust model provides valuable information on Cenozoic magmatism. The high-velocity body below the Ailaoshan metallogenic zone likely corresponds to buried granitoid intrusions caused by early-stage Cenozoic magmatism, which might have been altered and mineralized. The high-velocity body near Pingbian could be the trace of basalt-generating late-stage Cenozoic magmatism, which is most likely the intrusive phase of the younger basalts. (3) Major regional faults are identified as ascending channels and/or emplacement/precipitation sites for magma and mineralized fluids, meaning that such faults play an ore-controlling function within the magmatic fluid ore-formation system. |
| 资助项目 | National Key Research and Development Project of China[2016YFC0600302] ; National Key Research and Development Project of China[2017YFC0601206] ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0701] ; National Natural Science Foundation of China[41774097] ; National Natural Science Foundation of China[41674064] ; National Natural Science Foundation of China[41704042] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000618696100003 |
| 出版者 | ELSEVIER |
| 资助机构 | National Key Research and Development Project of China ; National Key Research and Development Project of China ; National Key Research and Development Project of China ; National Key Research and Development Project of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; 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 Key Research and Development Project of China ; National Key Research and Development Project of China ; National Key Research and Development Project of China ; National Key Research and Development Project of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; 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 Key Research and Development Project of China ; National Key Research and Development Project of China ; National Key Research and Development Project of China ; National Key Research and Development Project of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; 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 Key Research and Development Project of China ; National Key Research and Development Project of China ; National Key Research and Development Project of China ; National Key Research and Development Project of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/100093]  |
| 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 | Bai, Zhiming; Xu, Tao |
| 作者单位 | 1.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 3.Univ Zaragoza, Phys Earth, Sci B, Pedro Cerbuna 12, Zaragoza 50009, Spain 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, Mengjie,Bai, Zhiming,Xu, Tao,et al. Upper crustal velocity structure of the Ailaoshan-Red River shear zone and its implication for Cenozoic tectonic-magmatic activity: Evidence from ambient noise tomography using short-period dense seismic array[J]. PHYSICS OF THE EARTH AND PLANETARY INTERIORS,2021,311:12. |
| APA | Zheng, Mengjie,Bai, Zhiming,Xu, Tao,&Badal, Jose.(2021).Upper crustal velocity structure of the Ailaoshan-Red River shear zone and its implication for Cenozoic tectonic-magmatic activity: Evidence from ambient noise tomography using short-period dense seismic array.PHYSICS OF THE EARTH AND PLANETARY INTERIORS,311,12. |
| MLA | Zheng, Mengjie,et al."Upper crustal velocity structure of the Ailaoshan-Red River shear zone and its implication for Cenozoic tectonic-magmatic activity: Evidence from ambient noise tomography using short-period dense seismic array".PHYSICS OF THE EARTH AND PLANETARY INTERIORS 311(2021):12. |
入库方式： OAI收割
来源：地质与地球物理研究所
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