Regional differences in crustal structure of the North China Craton from receiver functions
文献类型：期刊论文
| 作者 | Wei ZiGen1; Chu RiSheng1; Chen Ling2 |
| 刊名 | SCIENCE CHINA-EARTH SCIENCES
 |
| 出版日期 | 2015-12-01 |
| 卷号 | 58期号:12页码:2200-2210 |
| 关键词 | North China Craton Moho depth Poisson's ratio gravitational equilibrium receiver function amplitude regional difference in crust |
| DOI | 10.1007/s11430-015-5162-y |
| 文献子类 | Article |
| 英文摘要 | Moho depth and crustal average Poisson's ratio for 823 stations are obtained by H-kappa stacking of receiver functions. These, together with topography and receiver function amplitude information, were used to study the crustal structure beneath the North China Craton (NCC). The results suggest that modified and preserved crust coexist beneath the craton with generally Airy-type isostatic equilibrium. The equilibrium is relatively low in the eastern NCC and some local areas in the central and western NCC, which correlates well with regional geology and tectonic features. Major differences in the crust were observed beneath the eastern, central, and western NCC, with average Moho depths of 33, 37, and 42 km and average Poisson's ratios of 0.268, 0.267 and 0.264, respectively. Abnormal Moho depths and Poisson's ratios are mainly present in the rift zones, the northern and southern edges of the central NCC, and tectonic boundaries. The crust beneath Ordos retains the characteristics of typical craton. Poisson's ratio increases roughly linearly as Moho depth decreases in all three parts of the NCC with different slopes. Receiver function amplitudes are relatively large in the northern edge of the eastern and central NCC, and small in and near the rifts. The Yanshan Mountains and southern part of the Shanxi rift show small-scale variations in the receiver-function amplitudes. These observations suggest that overall modification and thinning in the crust occurred in the eastern NCC, and local crustal modification occurred in the central and western NCC. Different crustal structures in the eastern, central, and western NCC suggest different modification processes and mechanisms. The overall destruction of the crustal structure in the eastern NCC is probably due to the westward subduction of the Pacific Plate during the Meso-Cenozoic time; the local modifications of the crust in the central and western NCC may be due to repeated reactivations at zones with a heterogeneous structure by successive thermal-tectonic events during the long-term evolution of the NCC. |
| WOS关键词 | V-P/V-S ; SEISMIC-SOUNDING PROFILE ; TECTONIC IMPLICATIONS ; CONTINENTAL-CRUST ; POISSONS RATIO ; THICKNESS BENEATH ; EVOLUTION ; BELT ; LITHOSPHERE ; CONSTRAINTS |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000365769400008 |
| 资助机构 | National Basic Research Program of China(2013CB733203) ; National Basic Research Program of China(2013CB733203) ; National Natural Science Foundation of China(41225016 ; National Natural Science Foundation of China(41225016 ; National Science and Technology Major of China(2011ZX05008-001) ; National Science and Technology Major of China(2011ZX05008-001) ; 41125015) ; 41125015) ; National Basic Research Program of China(2013CB733203) ; National Basic Research Program of China(2013CB733203) ; National Natural Science Foundation of China(41225016 ; National Natural Science Foundation of China(41225016 ; National Science and Technology Major of China(2011ZX05008-001) ; National Science and Technology Major of China(2011ZX05008-001) ; 41125015) ; 41125015) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/62159]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Geodesy & Geophys, State Key Lab Geodesy & Earths Dynam, Wuhan 430077, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei ZiGen,Chu RiSheng,Chen Ling. Regional differences in crustal structure of the North China Craton from receiver functions[J]. SCIENCE CHINA-EARTH SCIENCES,2015,58(12):2200-2210. |
| APA | Wei ZiGen,Chu RiSheng,&Chen Ling.(2015).Regional differences in crustal structure of the North China Craton from receiver functions.SCIENCE CHINA-EARTH SCIENCES,58(12),2200-2210. |
| MLA | Wei ZiGen,et al."Regional differences in crustal structure of the North China Craton from receiver functions".SCIENCE CHINA-EARTH SCIENCES 58.12(2015):2200-2210. |
入库方式： OAI收割
来源：地质与地球物理研究所
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