井中三分量磁测在别里塞北—喀雅克登地区金属矿勘探中的应用

Application of the Method of Borehole Three-component Magnetic Survey to Metallic Ore Prospecting in Bielisaibei and Kayakedeng Regions

井中三分量磁测不仅可以发现远离钻井的强磁性矿床,也能用来发现与强磁性矿物共生的磁性较弱的稀有金属矿床,已经成为矿山深部找矿的一种有效手段。本文通过对别里塞北和喀雅克登地区的三分量磁测数据进行处理解释,再结合地质资料的综合分析,以确定地下矿床的位置。通过研究得到三分量磁测数据解释的矿层与地质编录资料吻合较好;对三分量磁异常数据的处理解释,确定了别里塞北工区井底盲矿体和井旁盲矿体。

The borehole three--component magnetic survey not only can be used to measure the strong magnetic ore deposits far from drilling, but also can be used to find weakly mag- netic deposits which have intergrowth relationship with strongly magnetic minerals. This technique has become an effective tool for deep exploration in the mine. This paper has comprehensively analyzed and determined the position of the underground deposits by pro- cessing and interpreting the borehole three--component magnetic survey data and combi- ning geological data in Bielisaibei and Kayakedeng regions. Through the research, the bore- hole three--component magnetic survey data interpretation and geological record data are in good agreement, and the bottom hole blind ore and the nearby hole blind ore in Bielisaibei region have been prospected by the analysis of borehole three--component magnetic survey data.