裂隙非均匀分布岩石中的电位及视电阻率计算  

ELECTRIC POTENTIAL DISTRIBUTION IN ROCK CONTAIN-ING NON-UNIFORM CRACK AND APPARENT RESISTIVITY CALCULATION

作　　者：彭自正 牛志仁[2] 

机构地区：[1]江西省地震局,中国南昌330039 [2]陕西省地震局,中国西安710068

出　　处：《地震学报》2001年第3期298-306,共9页Acta Seismologica Sinica

基　　金：地震科学联合基金资助课题 ( 1 980 82 )

摘　　要：计算了在均匀高阻介质中含有低阻裂隙的岩石的电场分布 ,并由此推导出裂隙非均匀分布的岩石中视电阻率的计算公式 .结果表明 ,裂隙的埋深、规模、走向 (平行或垂直视电阻率测线 )以及真电阻率等 ,对视电阻率的观测和计算结果都有不同程度的影响 .In this paper, we compute electric field distribution in high resistance rock containing low resistance crack, deduce calculation formula about apparent resistivity in rocks containing cracks which are non uniform distributed. The result shows that the crack depth from the earth surface, crack scale, crack strike(parallel or vertical to the measuring line of apparent resistivity), crack really resistivity etc , have influence on observation and computing result of apparent resistivity. The result of this paper provide an effective compute method for earthquake analysis and prediction by using apparent resistivity method.

关 键 词：裂隙 岩石 电位 视电阻率 地电 地震预报 埋深 

分 类 号：P319.2[天文地球—固体地球物理学] P315.722[天文地球—地球物理学]