岩矿石模型的复电阻率研究  

Study of the complex resistivity of rocks and ores model

作　　者：黄理善[1] 敬荣中[1,2] 张胜业[3] 杨红[2] 

机构地区：[1]中国有色桂林矿产地质研究院有限公司,桂林541004 [2]桂林理工大学,桂林541004 [3]中国地质大学(武汉),武汉430074

出　　处：《地球物理学进展》2014年第6期2657-2664,共8页Progress in Geophysics

基　　金：国家自然科学基金资助项目(40774061)资助

摘　　要：用水泥、河砂、石墨、黄铜和铁块等材料人工合成导电矿物成分、结构、含量和颗粒大小不同的多相岩、矿石标本,对标本进行了复电阻率特性测量,获得标本的复电阻率振幅频谱曲线和相位频谱曲线,利用标本的复电阻率振幅频谱曲线反演求得其Cole-Cole模型参数,讨论了标本的Cole-Cole模型参数与其导电矿物的成分、结构、含量和颗粒大小等因素的关系.试验结果显示了利用模型参数区分矿与非矿异常的巨大潜力.In this paper,multiphase rock and ore samples in different conductive mineral composition,structure,contents and particle size were synthesized by cement,river sand,graphite,brass,iron and other materials.Complex resistivity characteristic measurements were taken to the samples in order to acquire the complex resistivity amplitude spectrum curve and phase spectrum curve.An inversion to complex resistivity amplitude spectrum curve of the samples was made to acquire Cole-Cole model parameters.Then made a discussion of the relationship between Cole-Cole model parameters of the samples and their conductive mineral composition. The experimental results showed a great potential of model parameters to distinguish mine and non-mine geophysical anomaly.

关 键 词：复电阻率 Cole-Cole模型参数 物理模拟 岩矿石标本 

分 类 号：P631[天文地球—地质矿产勘探]