摘要
为研究金矿床钻探及找矿前景分析,采用电法勘探方法监测矿体与岩体间电磁学、电化学差异寻找金矿资源。采集不同中段钻孔岩芯样品,布置中间梯度装置和对称四极测深装置,确定异常区域,处理与分析视极化率、视电阻率数据,绘制平剖图和等值线图,判断金矿体产状,设计钻探施工,制作报表及剖面图,探明金矿床储量和产状,对资源做出确切评价。由岩石、矿体的极化率、电阻率和电磁率变化预测金矿床成矿有利远景区,圈定靶区目标,对研究区及外围区域金矿勘查找矿具有指导意义。
In order to study the drilling and prospecting prospect of gold deposits,the electrical prospecting method is used to monitor the electromagnetic and electrochemical differences between the ore body and the rock mass to search for gold resources.The core samples of different middle sections are collected,the intermediate gradient device and symmetrical quadrupole sounding device are arranged,the abnormal area is determined,the apparent polarizability and apparent resistivity data are processed and analyzed,the plane profile and contour map are drawn,the occurrence of gold ore body is judged,the drilling construction is designed,the report forms and cross-sections are made,the reserves and occurrence of gold deposits are verified,and the resources are evaluated accurately.According to the changes of polarizability,resistivity and electromagnetism of rocks and orebodies,it is of guiding significance to predict the favorable metallogenic prospect areas of gold deposits and delineate the target areas for gold exploration and prospecting in the study area and surrounding areas.
作者
郭维
GUO Wei(The First Geological Mineral Exploration Institute of Gansu Provincial Geology and Mineral Bureau,Tianshui 741020,China)
出处
《世界有色金属》
2020年第19期71-72,共2页
World Nonferrous Metals
关键词
电法勘探
金矿床
钻探
前景
electrical prospecting
gold deposit
drilling
prospect
