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Crustal thickness and average V-p/V-s ratio variations in southwest Yunnan, China, from teleseismic receiver functions

文献类型：期刊论文

作者Wang, Pan1; Wang, Liangshu1; Mi, Ning1; Liu, Jianhua2; Li, Hua1; Yu, Dayong1; Xu, Mingjie1; Wang, Xingchen1; Guo, Zhiwei1
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
出版日期2010-11-23
卷号115
ISSN号0148-0227
DOI10.1029/2009JB006651
文献子类Article
英文摘要Recently, many portable broadband three-component seismic stations have been deployed in Yunnan, China. We use teleseismic receiver functions to determine the crustal thickness (H) and the crustal average compressional to shear wave velocity (V-p/V-s) ratio (k) variations beneath in southwest Yunnan. By comparing the synthetics generated from dipping Moho models with those from a flat Moho model, it reveals that for the rays traveling along or around the updip direction, the differential arrival times of Ps and multiples generated at the dipping Moho are comparable with those generated at the flat Moho and the result from stacking with these synthetics is a better estimate of model structure. For the synthetics traveling along or around the downdip direction, the differential arrival times of Ps and multiples generated at dipping Moho are smaller than those generated at flat Moho and make the H-k stacking results deviate from the model structure. Thus, the ambiguity induced by dipping Moho can be reduced significantly by only stacking with the rays traveling along or around the updip direction. Applying this technique to 19 stations, we obtained that H ranges from similar to 35-42 km and the k ranges from similar to 1.66-1.78. From the central Simao basin, H increases northward and northeastward; k increases significantly northeastward across the Ailao Shan-Red River shear zone.
WOS关键词VELOCITY STRUCTURE ; POISSONS RATIO ; GEOPHYSICAL IMPLICATIONS ; STRUCTURE BENEATH ; WAVE VELOCITY ; MOHO DEPTH ; PROVINCE ; CALIFORNIA ; PARAMETER ; PROFILES
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000284707500001
出版者AMER GEOPHYSICAL UNION
资助机构National Science Foundation of China(40634021 ; National Science Foundation of China(40634021 ; 40034010 ; 40034010 ; 40574015) ; 40574015) ; National Science Foundation of China(40634021 ; National Science Foundation of China(40634021 ; 40034010 ; 40034010 ; 40574015) ; 40574015) ; National Science Foundation of China(40634021 ; National Science Foundation of China(40634021 ; 40034010 ; 40034010 ; 40574015) ; 40574015) ; National Science Foundation of China(40634021 ; National Science Foundation of China(40634021 ; 40034010 ; 40034010 ; 40574015) ; 40574015)
源URL[http://ir.iggcas.ac.cn/handle/132A11/72356]  
专题中国科学院地质与地球物理研究所
通讯作者Wang, Pan
作者单位1.Nanjing Univ, Sch Earth Sci & Engn, Nanjing 210093, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Pan,Wang, Liangshu,Mi, Ning,et al. Crustal thickness and average V-p/V-s ratio variations in southwest Yunnan, China, from teleseismic receiver functions[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2010,115.
APA Wang, Pan.,Wang, Liangshu.,Mi, Ning.,Liu, Jianhua.,Li, Hua.,...&Guo, Zhiwei.(2010).Crustal thickness and average V-p/V-s ratio variations in southwest Yunnan, China, from teleseismic receiver functions.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,115.
MLA Wang, Pan,et al."Crustal thickness and average V-p/V-s ratio variations in southwest Yunnan, China, from teleseismic receiver functions".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 115(2010).

入库方式： OAI收割

来源：地质与地球物理研究所

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