Modelling pressurized deformation source for changbaishan volcano with homogenous expansion point source
文献类型:期刊论文
作者 | Zhu Gui-Zhi1,2; Wang Qing-Liang2; Shi Yao-Lin1; Cui Du-Xin2 |
刊名 | Chinese journal of geophysics-chinese edition
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出版日期 | 2008 |
卷号 | 51期号:1页码:108-115 |
关键词 | Changbaishan volcanic region Ellipsoid point source model Genetic algorithm Joint inversion |
ISSN号 | 0001-5733 |
通讯作者 | Zhu gui-zhi(zhgzh04b@mails.gucas.ac.cn) |
英文摘要 | Pressurized deformation source is modeled by using three mutually orthogonal extensional point sources at the same depth, based on the fact that horizontal displacements in changbaishan volcanic region during 2002 similar to 2003 lacked centric symmetric distribution caused by spherical pressurized magma source. in 3 homogenous elastic half-space with the parameter v-p = 6.700 km/s, v-s = 3.8700 km/s, rho = 2900 kg/m(3), the pressurized deformation source in changbaishan volcanic region is inversed with psgrn/psgmp code and genetic algorithm by jointly using gps data and leveling data during 2002 similar to 2003. the results show that ellipsoid point source model controlled by unequal tensile ones in three orthogonal directions can represent magma source in changbaishan volcanic region. magma source is located in about 10 km depth, the largest volume expansion is up to 7000000 m(3) in the direction normal to the fault plane with strike angle 34.4 degrees, and dip angle 82.2 degrees, the second one is 6598071 m(3) in the direction normal to the fault plane with strike angle 302.8 degrees, and dip angle 78.5 degrees, the last one is 5220160 m(3) in the direction normal to the fault plane with strike angle 337.7 degrees, and dip angle 14.0 degrees. |
WOS关键词 | ELASTIC HALF-SPACE ; SURFACE DEFORMATION ; TIANCHI-VOLCANO ; TENSILE FAULTS ; INFLATION ; SHEAR ; CRUST |
WOS研究方向 | Geochemistry & Geophysics |
WOS类目 | Geochemistry & Geophysics |
语种 | 英语 |
WOS记录号 | WOS:000252841900014 |
出版者 | SCIENCE CHINA PRESS |
URI标识 | http://www.irgrid.ac.cn/handle/1471x/2392779 |
专题 | 中国科学院大学 |
通讯作者 | Zhu Gui-Zhi |
作者单位 | 1.Chinese Acad Sci, Grad Univ, Beijing 100080, Peoples R China 2.China Earthquake Adm, Monitoring Ctr 2, Xian 710054, Peoples R China |
推荐引用方式 GB/T 7714 | Zhu Gui-Zhi,Wang Qing-Liang,Shi Yao-Lin,et al. Modelling pressurized deformation source for changbaishan volcano with homogenous expansion point source[J]. Chinese journal of geophysics-chinese edition,2008,51(1):108-115. |
APA | Zhu Gui-Zhi,Wang Qing-Liang,Shi Yao-Lin,&Cui Du-Xin.(2008).Modelling pressurized deformation source for changbaishan volcano with homogenous expansion point source.Chinese journal of geophysics-chinese edition,51(1),108-115. |
MLA | Zhu Gui-Zhi,et al."Modelling pressurized deformation source for changbaishan volcano with homogenous expansion point source".Chinese journal of geophysics-chinese edition 51.1(2008):108-115. |
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来源:中国科学院大学
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