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学科主题: Geosciences, Multidisciplinary
题名: Mapping the crustal structure under active volcanoes in central Tohoku, Japan using P and PmP data
作者: Xia, SH ; Zhao, DP ; Qiu, XL ; Nakajima, J ; Matsuzawa, T ; Hasegawa, A
通讯作者: shxia1982@yahoo.com
刊名: GEOPHYSICAL RESEARCH LETTERS
发表日期: 2007
卷: 34, 期:10, 页:-
收录类别: sci
部门归属: Chinese Acad Sci, S China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China; Tohoku Univ, Grad Sch Sci, Res Ctr Predict Earthquakes & Volcan Erupt, Sendai, Miyagi 9808578, Japan; Chinese Acad Sci, Grad Sch, Beijing, Peoples R China
项目归属: 海洋地质
摘要: [1] We present high-resolution tomographic images of the crust under the active arc volcanoes in the central part of Northeast Japan (Tohoku) determined by using arrival times of first P waves and post-critically reflected waves from the Moho discontinuity (PmP). Results of detailed resolution analyses show that the addition of PmP data can improve significantly the resolution of the lower crustal structure. After the PmP data are included in the tomographic inversion, the low-velocity (low-V) anomalies in the lower crust under the active volcanoes can be better imaged. The low-V zones are clearly visible in the entire crust beneath the volcanoes extending from the surface down to the Moho discontinuity. Arc-magma related, deep, low-frequency microearthquakes are located around the low-V zones in the lower crust under the volcanoes, which occurrence is probably associated with the movement of fluid magma under the volcanoes.
原文出处: 查看原文
WOS记录号: WOS:000246845900005
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/4490
Appears in Collections:中科院边缘海地质重点实验室_期刊论文

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Recommended Citation:
Xia, SH; Zhao, DP; Qiu, XL; Nakajima, J; Matsuzawa, T; Hasegawa, A.Mapping the crustal structure under active volcanoes in central Tohoku, Japan using P and PmP data,GEOPHYSICAL RESEARCH LETTERS,2007,34(10):-
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文件名: Mapping the crustal structure under active volcanoes in central Tohoku, Japan using P and PmP data .pdf
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