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  2. 地质与地球物理研究所
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  4. 中国科学院地球与行星物理重点实验室
Response of Yunnan crustal structure to eastward growth of the Tibet Plateau and subduction of the India plate in Cenozoic

文献类型：期刊论文

作者Ling, Yuan1,2; Zheng, Tianyu1,2; He, Yumei1,2,3; Hou, Guangbing1,2
刊名TECTONOPHYSICS
出版日期2020-12-20
卷号797页码:10
ISSN号0040-1951
关键词Crustal structure Receiver functions Eastward growth of the Tibetan Plateau Asthenospheric upwelling Yunnan Province
DOI10.1016/j.tecto.2020.228661
英文摘要Most previous studies advocate that crustal weakening in the Yunnan area is predominantly the result of eastward growth of the Tibetan Plateau. Here we observe regional variations in the Yunnan crustal structure from the waveform characteristic variations of receiver functions at 342 seismic stations. Furthermore, receiver function imaging along three seismic sections reveals the response of crustal structure to different tectonic evolution. Our results show that northwestern Yunnan is characterized by 49-64 km-thick crust with multi-layer low-velocity materials and local lower crustal "doublet". These low-velocity structures may reflect partial melting caused by crustal thickening associated with the eastward growth of the plateau. However, in southern and eastern parts of Yunnan, the topography of the Moho varies relatively gently with crustal thicknesses of 26-42 km, and widespread low-velocity zones are located above the crust-mantle boundary. We speculate that these features might favor the action of partial melting of crust triggered by asthenospheric upwelling related to the subduction of the India plate.
资助项目National Natural Science Foundation of China[41490612] ; National Natural Science Foundation of China[91755214]
WOS研究方向Geochemistry & Geophysics
语种英语
出版者ELSEVIER
WOS记录号WOS:000596071500004
资助机构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
源URL[http://ir.iggcas.ac.cn/handle/132A11/99900]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者Zheng, Tianyu
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 10029, Peoples R China
3.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714		 Ling, Yuan,Zheng, Tianyu,He, Yumei,et al. Response of Yunnan crustal structure to eastward growth of the Tibet Plateau and subduction of the India plate in Cenozoic[J]. TECTONOPHYSICS,2020,797:10.
APA Ling, Yuan,Zheng, Tianyu,He, Yumei,&Hou, Guangbing.(2020).Response of Yunnan crustal structure to eastward growth of the Tibet Plateau and subduction of the India plate in Cenozoic.TECTONOPHYSICS,797,10.
MLA Ling, Yuan,et al."Response of Yunnan crustal structure to eastward growth of the Tibet Plateau and subduction of the India plate in Cenozoic".TECTONOPHYSICS 797(2020):10.

入库方式： OAI收割

来源：地质与地球物理研究所

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