The lithospheric structure beneath southeast Tibet revealed by P and S receiver functions
文献类型:期刊论文
作者 | Yang, Haiyan1,2,3; Peng, Hengchu3; Hu, Jiafu3 |
刊名 | JOURNAL OF ASIAN EARTH SCIENCES
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出版日期 | 2017-05-01 |
卷号 | 138页码:62-71 |
关键词 | p Receiver Functions s Receiver Functions Southeast Tibet Lithosphere |
ISSN号 | 1367-9120 |
DOI | 10.1016/j.jseaes.2017.02.001 |
文献子类 | Article |
英文摘要 | Yunnan is located at the margin of southeast Tibet, where dramatic tectonic activities occur. In this study, we calculated the P and S receiver functions by the deconvolution of three-component seismic data from 48 permanent broad-band stations deployed in Yunnan region. In order to improve signal-noise ratios of the receiver functions, we move-out corrected receiver functions to a reference epicentral distance of 67 degrees, and then stacked them to one trace for each station. Finally, the stacked traces were converted to the depth domain to obtain the crustal and lithospheric thicknesses beneath each station. In southwestern Yunnan (at the west side of the Jinshajiang-Red River Fault), the crustal thicknesses from the P-wave receiver functions (PRFs) and from the S-wave receiver functions (SRFs) are in the ranges of 30-36 km, and of 33-39 km, respectively. But in northwestern Yunnan, the crustal thicknesses from PRFs and SRFs are from 66 to 69 km and from 63 to 66 km, respectively. Our results show that the crustal thicknesses in Yunnan from PRFs and SRFs are consistent, with a maximum deviation of 3 km; and increase gradually from similar to 30 km in the south to similar to 68 km in the northwest. Besides, the lithospheric thickness from PRFs is also similar to that from SRFs, with the largest difference of 15-20 km in southeastern Yunnan. At the west side of the Jinshajiang-Red River Fault in western Yunnan, it is only about 80-100 km, and increases to 140-150 km regionally in northern and southeastern Yunnan. The thinned lithosphere extends eastward from western Yunnan to eastern Yunnan. We attribute the thinned lithosphere to the upwelling of hot upper mantle materials associated with the eastward subduction of the Indian plate. (C) 2017 Elsevier Ltd. All rights reserved. |
WOS关键词 | UPPER-MANTLE STRUCTURE ; ASTHENOSPHERE BOUNDARY ; CRUSTAL FLOW ; PLATEAU ; YUNNAN ; TOMOGRAPHY ; EVOLUTION ; PROVINCE ; AREA |
WOS研究方向 | Geology |
语种 | 英语 |
WOS记录号 | WOS:000401376300006 |
出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
资助机构 | National Science Foundation of China(41304076 ; National Science Foundation of China(41304076 ; "young and middle-aged backbone teachers training plan" of Yunnan University(XT412003) ; "young and middle-aged backbone teachers training plan" of Yunnan University(XT412003) ; 41374106 ; 41374106 ; 41464003) ; 41464003) ; National Science Foundation of China(41304076 ; National Science Foundation of China(41304076 ; "young and middle-aged backbone teachers training plan" of Yunnan University(XT412003) ; "young and middle-aged backbone teachers training plan" of Yunnan University(XT412003) ; 41374106 ; 41374106 ; 41464003) ; 41464003) ; National Science Foundation of China(41304076 ; National Science Foundation of China(41304076 ; "young and middle-aged backbone teachers training plan" of Yunnan University(XT412003) ; "young and middle-aged backbone teachers training plan" of Yunnan University(XT412003) ; 41374106 ; 41374106 ; 41464003) ; 41464003) ; National Science Foundation of China(41304076 ; National Science Foundation of China(41304076 ; "young and middle-aged backbone teachers training plan" of Yunnan University(XT412003) ; "young and middle-aged backbone teachers training plan" of Yunnan University(XT412003) ; 41374106 ; 41374106 ; 41464003) ; 41464003) |
源URL | [http://ir.iggcas.ac.cn/handle/132A11/52921] ![]() |
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 | Hu, Jiafu |
作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 10029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Yunnan Univ, Dept Geophys, Kunming 650091, Peoples R China |
推荐引用方式 GB/T 7714 | Yang, Haiyan,Peng, Hengchu,Hu, Jiafu. The lithospheric structure beneath southeast Tibet revealed by P and S receiver functions[J]. JOURNAL OF ASIAN EARTH SCIENCES,2017,138:62-71. |
APA | Yang, Haiyan,Peng, Hengchu,&Hu, Jiafu.(2017).The lithospheric structure beneath southeast Tibet revealed by P and S receiver functions.JOURNAL OF ASIAN EARTH SCIENCES,138,62-71. |
MLA | Yang, Haiyan,et al."The lithospheric structure beneath southeast Tibet revealed by P and S receiver functions".JOURNAL OF ASIAN EARTH SCIENCES 138(2017):62-71. |
入库方式: OAI收割
来源:地质与地球物理研究所
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