The structure of the sedimentary cover and crystalline crust in the Sichuan Basin and its tectonic implications
文献类型:期刊论文
作者 | Wei, Zigen1,4; Chu, Risheng1,4; Chen, Ling1,2,3; Wu, Shanshan7; Jiang, Hui6; He, Bin5 |
刊名 | GEOPHYSICAL JOURNAL INTERNATIONAL
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出版日期 | 2020-12-01 |
卷号 | 223期号:3页码:1879-1887 |
关键词 | Composition and structure of the continental crust Asia Body waves Crustal imaging Cratons |
ISSN号 | 0956-540X |
DOI | 10.1093/gji/ggaa420 |
英文摘要 | The Sichuan Basin, located to the east of the Tibetan Plateau, experienced successive marine and continental depositions since the Sinian. Structures of the sedimentary cover and crystalline crust, for example, thickness and V-p/V-s ratio, are of great significance to study the basin's properties and evolution, which have not been investigated simultaneously. In this paper, we extended the traditional single-layer H-k stacking method of receiver functions to a multilayer H-k stacking approach and applied it to invert for thickness and Vp/Vs ratio of the sedimentary cover and crystalline crust beneath 14 seismic stations in the Sichuan Basin. The observed thickness and V-p/V-s ratio of the sedimentary cover range from 4.2 to 7.5 km and from 1.86 to 2.55, respectively, suggesting unconsolidated sediments containing water or other fluids. Two-layer sedimentary cover was observed beneath eight stations, probably corresponding to the sediment in the Phanerozoic and Precambrian. The observed thickness and V-p/V-s ratio of the crystalline crust range from 33.4 to 41.8 km and from 1.61 to 1.78, respectively, suggesting typical cratonic crust in the Sichuan Basin. Theoretical analyses of H-k stacking were further performed for different types of sedimentary basins, and the results suggest that the multilayer H-k stacking is more effective to study basin's structure with a thick sedimentary layer and thin subsediment crust. |
WOS关键词 | H-KAPPA STACKING ; RECEIVER FUNCTION ; MOHO DEPTH ; BENEATH EASTERN ; POISSONS RATIOS ; CHINA ; DEFORMATION ; THICKNESSES ; CONSTRAINTS ; BLOCK |
资助项目 | DREAM project of the National Key Research and Development Program of China[2016YFC0600402] ; National Natural Science Foundation of China[41604056] |
WOS研究方向 | Geochemistry & Geophysics |
语种 | 英语 |
WOS记录号 | WOS:000605982100027 |
出版者 | OXFORD UNIV PRESS |
资助机构 | DREAM project of the National Key Research and Development Program of China ; DREAM project of the National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; DREAM project of the National Key Research and Development Program of China ; DREAM project of the National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; DREAM project of the National Key Research and Development Program of China ; DREAM project of the National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; DREAM project of the National Key Research and Development Program of China ; DREAM project of the National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
源URL | [http://ir.iggcas.ac.cn/handle/132A11/100007] ![]() |
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 | Chu, Risheng |
作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 4.Chinese Acad Sci, Innovat Acad Precis Measurement Sci & Technol, State Key Lab Geodesy & Earths Dynam, Wuhan 430077, Peoples R China 5.Jiangsu Earthquake Agcy, Nanjing 210014, Peoples R China 6.China Earthquake Adm, Inst Geophys, Beijing 100081, Peoples R China 7.Shanghai Earthquake Agcy, Shanghai 200062, Peoples R China |
推荐引用方式 GB/T 7714 | Wei, Zigen,Chu, Risheng,Chen, Ling,et al. The structure of the sedimentary cover and crystalline crust in the Sichuan Basin and its tectonic implications[J]. GEOPHYSICAL JOURNAL INTERNATIONAL,2020,223(3):1879-1887. |
APA | Wei, Zigen,Chu, Risheng,Chen, Ling,Wu, Shanshan,Jiang, Hui,&He, Bin.(2020).The structure of the sedimentary cover and crystalline crust in the Sichuan Basin and its tectonic implications.GEOPHYSICAL JOURNAL INTERNATIONAL,223(3),1879-1887. |
MLA | Wei, Zigen,et al."The structure of the sedimentary cover and crystalline crust in the Sichuan Basin and its tectonic implications".GEOPHYSICAL JOURNAL INTERNATIONAL 223.3(2020):1879-1887. |
入库方式: OAI收割
来源:地质与地球物理研究所
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