| 断层构造对地震地电阻率异常的影响 |
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| 引用本文： | 郑国磊,杜学彬,陈军营,谭大成,安张辉,范莹莹,刘君,解滔.断层构造对地震地电阻率异常的影响[J].地震学报,2011,33(2):187-197. |
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| 作者姓名： | 郑国磊 杜学彬 陈军营 谭大成 安张辉 范莹莹 刘君 解滔 |
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| 作者单位： | 1) 中国兰州 730000 中国地震局兰州地震研究所
2) 中国天津300181天津市地球物理勘探中心 |
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| 基金项目： | 国家科技支撑计划子专题，国家科技支撑计划专题 |
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| 摘 要： | 分析了典型震例,研究了断层构造对地电阻率异常空间分布的影响;应用弹-塑性二维有限元方法,模拟汁算了含断层的地质体中介质应变的空间不均匀分布.换算为视电阻率变化,解释了震前地电阻率异常空间不均匀分布的现象.研究表明,震源区周围地电阻率中期,短临异常空间不均匀分布的根本原因足断层构造以及不同震源机制引起的地下介质变形的不均...
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| 关 键 词： | 地震 地电阻率 不均匀性 断层 有限元 |
Influence of active faults on earthquake-related anomalies of geo-electric resistivity |
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| Zheng Guolei,Du Xuebin,Chen Junying,Tan Dacheng,An Zhanghui,Fan Yingying,Liu Jun,Xie Tao.Influence of active faults on earthquake-related anomalies of geo-electric resistivity[J].Acta Seismologica Sinica,2011,33(2):187-197. |
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| Authors: | Zheng Guolei Du Xuebin Chen Junying Tan Dacheng An Zhanghui Fan Yingying Liu Jun Xie Tao |
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| Institution: | 1) Lanzhou Institute of Seismology, China Earthquake Administration, Lanzhou 730000, China
2) Tianjin Geophysical Exploration Center, Tianjin 300181, Chinabusiness week launch a career 2008 multiphasic personali |
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| Abstract: | We have studied the fault influence on the spatial distribution of geo-electric resistivity anomalies through analyzing typical cases of earthquake.Then,the strain distribution in a geologic body model with a fault is calculated using the elasto-plastic 2-D finite element method,and the strain values are converted into the relative changes of geo-electric resistivity.This paper proposed a well explanation for the spatially non-uniform distribution of changes of geo-electric resistivity before an earthquakes... |
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| Keywords: | earthquake geo-electric resistivity non-uniform fault finite element |
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