| 1920年海原8.5级地震震中区地电阻率各向异性研究 |
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| 引用本文： | 刘元生,吴子泉,陈惠云,姜早峰.1920年海原8.5级地震震中区地电阻率各向异性研究[J].华北地震科学,2005,23(3):9-12. |
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| 作者姓名： | 刘元生 吴子泉 陈惠云 姜早峰 |
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| 作者单位： | 山东省地震局,山东,济南,250014 |
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| 摘 要： | 通过海原8.5级地震震中区环行电测深研究,发现在断层破碎带有明显的电阻率各向异性,垂直断层走向呈现明显的高电性,断层走向呈现明显的低电性.根据电性差异讨论了断层地表的变形特征.研究结果表明：环形电测深工作,对研究地面附近地层物性变化有重要意义.
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| 关 键 词： | 环行电测深 电阻率各向异性 海原地震 |
| 文章编号： | 1003-1375（2005）03-0009-04 |
| 收稿时间： | 2005-05-16 |
| 修稿时间： | 2005-05-16 |
Study on anisotropy of earth resistivity in the epicentral area of Haiyuan M8.5 earthquake occurred in 1920 |
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| LIU Yuan-Sheng,WU Zi-quan,CHEN Hui-yun,JIANG Zao-feng.Study on anisotropy of earth resistivity in the epicentral area of Haiyuan M8.5 earthquake occurred in 1920[J].North China Earthquake Sciences,2005,23(3):9-12. |
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| Authors: | LIU Yuan-Sheng WU Zi-quan CHEN Hui-yun JIANG Zao-feng |
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| Institution: | Earthquake Administration of Shandong Province, Jinan 250014, China |
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| Abstract: | Through the circular electric sounding in the epicentral area of Haiyuan M8.5 earthquake we found that there is obvious anisotropy of earth resistivity on the fracture zone of faults. Perpendicular to the strike of fault shows high electrical property and along the strike of fault shows low electrical property. Based on the difference in electrical property, the characteristic of surface deformation above fault is discussed. The results show that circular electrical sounding is significant to the study of stratum characteristic near surface. |
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| Keywords: | circular electrical sounding anisotropy of earth resistivity Haiyuan earthquake |
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