Study of the permeability in melting zone of South China Sea based on percolation theory
Wan, Ju-ying; Xu, He-hua; Li, Yan-zhen; Shu, Wei-bing; wanjy@scsio.ac.cn; xhhcn@scsio.ac.cn
2015
发表期刊MARINE GEOPHYSICAL RESEARCH
卷号36期号:2-3页码:139-147
摘要Oceanic crust is formed at mid-ocean ridges. The melting zone extends up to several hundreds of km laterally, the upwelling area at the spreading axis is confined to a narrow belt of only 2-3 km width. Whereas the parameter of permeability that magma ascending from the mantle beneath mid-ocean ridges is still poorly understood, despite the important role of the process for the formation of crust. Based on continuum percolation, we build the random fracture network as magma migration channels of South China Sea; with momentum equation, we deduced the dynamic pressure distribution with passive corner flow. After which, the permeability of melting zone is calculated with finite element method. Numerical simulation results indicate that there exists a power law relationship between the permeability and magma migration channels. The simulated result is consistent with that calculated by fractal method. The discovery of the ruler provides sound theoretical basis for the formation and evolution of oceanic crust, and may help us better understanding the formation and evolution of South China Sea.
部门归属[Wan, Ju-ying; Xu, He-hua; Li, Yan-zhen; Shu, Wei-bing] Univ Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Chinese Acad Sci, Guangzhou 510301, Guangdong, Peoples R China; [Wan, Ju-ying; Li, Yan-zhen; Shu, Wei-bing] Univ Chinese Acad Sci, Beijing 100049, Peoples R China ; LTO
关键词Magma Migration Oceanic Crust Rising Divergent Mantle Flow Percolation Method Permeability
学科领域Geochemistry & Geophysics ; Oceanography
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/14928
专题热带海洋环境国家重点实验室(LTO)
通讯作者wanjy@scsio.ac.cn; xhhcn@scsio.ac.cn
推荐引用方式
GB/T 7714
Wan, Ju-ying,Xu, He-hua,Li, Yan-zhen,et al. Study of the permeability in melting zone of South China Sea based on percolation theory[J]. MARINE GEOPHYSICAL RESEARCH,2015,36(2-3):139-147.
APA Wan, Ju-ying,Xu, He-hua,Li, Yan-zhen,Shu, Wei-bing,wanjy@scsio.ac.cn,&xhhcn@scsio.ac.cn.(2015).Study of the permeability in melting zone of South China Sea based on percolation theory.MARINE GEOPHYSICAL RESEARCH,36(2-3),139-147.
MLA Wan, Ju-ying,et al."Study of the permeability in melting zone of South China Sea based on percolation theory".MARINE GEOPHYSICAL RESEARCH 36.2-3(2015):139-147.
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