频谱激电(SIP)法圈定深部极化地质体的应用效果  

APPLICATION EFFECT OF SPECTRUM INDUCED POLARIZATION(SIP)METHOD IN DELINEATING DEEP POLARIZED GEOLOGICAL BODIES

作　　者：王大波 赵文超 张宇鹏[1] WANG Da-bo;ZHAO Wen-chao;ZHANG Yu-peng(Yunnan Exploration Institute of Geology and Mineral Resources,Kunming 650051)

机构地区：[1]云南省地质矿产勘查院,云南昆明650051

出　　处：《云南地质》2024年第S01期71-75,共5页Yunnan Geology

摘　　要：频谱激电(SIP)法是以岩、矿石电性(导电性、激发极化特性)差异为基础,观测并研究电阻率的频谱特性差异为手段,在超低频段上(n×10^(-8)~n×10^(2) Hz)观测视复电阻率,根据振幅、相位频谱响应反演Cole-Cole模型参数,获得各参数拟断面图,也可进行主要参数的二维反演,用于推断地下地质体分布情况,达到地质找矿目的的一种地面电法勘探方法。Spectrum Induced Polarization(SIP)method is a surface electrical exploration method that observes and studies the spectral characteristics of resistivity differences,based on the differences in electrical properties(conductivity,induced polarization characteristics)of rocks and ores.The apparent complex resistivity is observed in the ultra-low frequency band(n×10^(-8)~n×10^(2) Hz).The parameters of Cole-Cole model are inverted according to the amplitude and phase spectral responses,and the simulated cross-section diagram of each parameter is obtained.The two-dimensional inversion of main parameters can also be carried out to infer the distribution of underground geological bodies to achieve geological exploration purpose.

关 键 词：频谱激电(SIP) 频谱特性 复电阻率 COLE-COLE模型 反演 云南 

分 类 号：P631.3[天文地球—地质矿产勘探]