汽车钻施工取样方法在坦桑尼亚恩泽加绿岩带寻找隐伏金矿床中的应用研究  

Application on method of drill-mobile operate and sample in find concealed gold deposits in Nzega greenstone belt of Tanzania

作　　者：司建涛[1] 张明礼[1] 祁东[1] 梁永安[1] 邵江波[1] SI Jiantao;ZHANG Mingli;QI Dong;LIANG Yongan;SHAO Jiangbo(No.2 Institute of Geological&Mineral Resources Survey of Henan,Zhengzhou 450001,China)

机构地区：[1]河南省地质矿产勘查开发局第二地质矿产调查院,河南郑州450001

出　　处：《中国矿业》2023年第5期182-188,共7页China Mining Magazine

基　　金：河南省财政地质勘查项目资助(编号:豫国土资发〔2017〕22号,豫自然资发〔2019〕22号)。

摘　　要：恩泽加绿岩带为坦桑尼亚极为重要的绿岩带型金成矿带,长期受风化作用影响,其地表覆盖较为严重,地质调查和矿床勘查的程度相对较低,因此该区域具备寻找隐伏型金矿床的巨大潜力。在该区域开展地质勘查工作的过程中,根据勘查区实际情况,综合分析和对比了隐伏区找矿的各类技术手段,发现了在该区域开展地质填图、高精度地面磁法测量、土壤地球化学测量和激电测量等工作的基础上,结合汽车钻施工取样的技术方法,可较迅速地发现并圈定矿致异常,并成功在恩泽加绿岩带内发现了隐伏金矿床,取得了较好的找矿成果。在恩泽加绿岩带隐伏区找矿工作中的应用汽车钻施工取样,并对样品进行化探分析,其工作方法简单、成本低廉,可快速圈定矿致异常,达到快速评价的目的。在类似条件的隐伏区找矿工作中推广使用,可以提高找矿效率和成功率,并且具有经济意义。The Nzega greenstone belt is an very important greenstone type gold mineralization belt in Tanzania.For sustainable weathered,the surface is heavy covered and with a low level of mineral survey and exploration,so there is a giant potential in prospecting concealed gold deposit.In the course of geological exploration work,based on the actual situation,comprehensive analysis and comparison some kinds of skill for prospecting concealed deposit,it shows that when combined with geology mapping,high-accuracy ground magnetic survey,soil geochemistry and electrical stimulation,combines with drill-mobile operation and sample,can target an anomaly related to mineral deposit successfully and high-efficiency,and find a gold deposit in the Nzega greenstone belt finally.Application of auto drill construction sampling and geochemical analysis to the prospecting work in the concealed area of the Nzega greenstone belt.The working method is simple and inexpensive,which can quickly delineate ore induced anomalies and achieve the purpose of rapid evaluation.It can improve the efficiency and success rate of prospecting and has economic significance if it is widely used in prospecting in concealed areas with similar conditions.

关 键 词：汽车钻施工取样方法 坦桑尼亚 绿岩带 隐伏矿床 快速评价 

分 类 号：P634[天文地球—地质矿产勘探] TD164[天文地球—地质学]