花岗岩地区物探找水——以山东临朐地区研究为例  

Water prospecting in granite region by geophysical methods

作　　者：孙银行[1] 田蒲源[1] 杨勤海[1] 杨桂新[1] 朱庆俊[1] SUN Yinhang;TIAN Puyuan;YANG Qinhai;YANG Guixin;ZHU Qingjun(Center for Hydrogeology and Environmental Geology,China Geological Survey,Baoding 071051,Hebei,China)

机构地区：[1]中国地质调查局水文地质环境地质调查中心,河北保定071051

出　　处：《矿产勘查》2021年第9期1959-1963,共5页Mineral Exploration

基　　金：中国地质调查局地质调查项目(1212011121175、DD20190593和DD20190333)资助。

摘　　要：为了研究花岗岩贫水区找水难题,本文在总结花岗岩地区地下水赋存类型的基础上,对不同类型的地下水赋存特征进行了分析,并针对花岗岩地区主要赋水类型——构造裂隙水、风化壳裂隙水,选择以电阻率为观测参数的高密度电法和音频大地电磁测深法进行了探测研究。本文通过分析山东临朐县两个花岗岩地区找水的成功实例,表明该两种方法在花岗岩地区找水工作中能取得较好的探测效果。In order to study the difficult problem of finding water in granite poor water area,based on summarizing the occurrence types of groundwater in granite area,this paper analyzes the occurrence characteristics of different types of groundwater,and explores the main water bearing types of granite area——structural fissure water and weathered crust fissure water,and selects resistivity as observation parameter to explore high-density electrical method and audio frequency magnetotelluric sounding method.Through the analysis of two successful examples of water exploration in two granite areas in Linqu County,Shandong Province,it is shown that the two methods can achieve better detection results in the granite area.

关 键 词：花岗岩 找水 高密度电法 音频大地电磁测深法 地质调查工程 

分 类 号：P631.3[天文地球—地质矿产勘探]