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  4. 岩石圈演化国家重点实验室
Observations and modeling of flat subduction and its geological effects

文献类型：期刊论文

作者Yan, Zhiyong1,2,3,4,5,7,8; Chen, Lin3; Xiong, Xiong6; Wang, Kai4; Xie, Renxian4; Hsu, Hou Tze2,4,5
刊名SCIENCE CHINA-EARTH SCIENCES
出版日期2020-03-27
页码23
关键词Flat subduction Magmatism Intracontinental orogeny Formation mechanism Numerical modeling
ISSN号1674-7313
DOI10.1007/s11430-019-9575-2
英文摘要Flat subduction refers to low-angle (<10 degrees) or sub-horizontal subduction of oceanic slabs. Flat subduction is only recognized in similar to 10% of present-day subduction zones, but its impact on the behavior of the overriding plate is particularly strong. For example, flat subduction zones are typically associated with stronger earthquakes. The deformation caused by typical flat subduction will transfer from the trench to the overriding continental interior and form a broad magma belt. The formation mechanism of flat subduction has been linked to the relative buoyancy of subducted oceanic plateaus, overthrusting of the overriding plate, hydrodynamic suction, and trench retreat. However, these mechanisms remain debated. This paper systematically analyzes and summarizes previous studies on flat subduction, and outlines the possible geological effects of flat subduction, such as intracontinental orogeny and magmatism. Using examples from numerical modeling, we discuss the possible formation mechanisms. The most important factors that control the formation of flat subduction are associated with overthrusting of the overriding plate and the arrival of an oceanic plateau at the subduction zone. In addition, trench retreat is necessary to enable flat subduction. Hydrodynamic suction contributes to the reduction of the slab dip angle, but is insufficient to form flat subduction. Future numerical modeling of flat subduction should carry out three-dimensional high-resolution thermo-mechanical simulation, considering the influence of crustal eclogitization (negative buoyancy) and mantle serpentinization (positive buoyancy) of oceanic lithosphere, in combination with geological and geophysical data.
WOS关键词ASEISMIC RIDGE SUBDUCTION ; ALASKA CRUSTAL TRANSECT ; NAZCA PLATE BENEATH ; WADATI-BENIOFF ZONE ; SLAB SUBDUCTION ; OCEANIC PLATEAUS ; LARAMIDE OROGENY ; SOUTH CHINA ; MANTLE SERPENTINIZATION ; GEODYNAMIC EVOLUTION
资助项目National Key Research and Development of China[2016YFC0600406] ; National Natural Science Foundation of China[41731072] ; National Natural Science Foundation of China[41574095] ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences[XDB18000000]
WOS研究方向Geology
语种英语
WOS记录号WOS:000522592100003
出版者SCIENCE PRESS
资助机构National Key Research and Development of China ; National Key Research and Development of China ; National Key Research and Development of China ; National Key Research and Development 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 ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; National Key Research and Development of China ; National Key Research and Development of China ; National Key Research and Development of China ; National Key Research and Development 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 ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; National Key Research and Development of China ; National Key Research and Development of China ; National Key Research and Development of China ; National Key Research and Development 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 ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; National Key Research and Development of China ; National Key Research and Development of China ; National Key Research and Development of China ; National Key Research and Development 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 ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/95488]  
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Chen, Lin
作者单位1.Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China
2.Huazhong Univ Sci & Technol, Inst Geophys, Wuhan 430074, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
4.Chinese Acad Sci, Inst Geodesy & Geophys, State Key Lab Geodesy & Earths Dynam, Wuhan 430077, Peoples R China
5.Huazhong Univ Sci & Technol, PGMF, Wuhan 430074, Peoples R China
6.China Univ Geosci, Inst Geophys & Geomat, Wuhan 430074, Peoples R China
7.Huazhong Univ Sci & Technol, MOE Key Lab Fundamental Phys Quant Measurement, Wuhan 430074, Peoples R China
8.Huazhong Univ Sci & Technol, Hubei Key Lab Gravitat & Quantum Phys, PGMF, Wuhan 430074, Peoples R China
推荐引用方式
GB/T 7714		 Yan, Zhiyong,Chen, Lin,Xiong, Xiong,et al. Observations and modeling of flat subduction and its geological effects[J]. SCIENCE CHINA-EARTH SCIENCES,2020:23.
APA Yan, Zhiyong,Chen, Lin,Xiong, Xiong,Wang, Kai,Xie, Renxian,&Hsu, Hou Tze.(2020).Observations and modeling of flat subduction and its geological effects.SCIENCE CHINA-EARTH SCIENCES,23.
MLA Yan, Zhiyong,et al."Observations and modeling of flat subduction and its geological effects".SCIENCE CHINA-EARTH SCIENCES (2020):23.

入库方式： OAI收割

来源：地质与地球物理研究所

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