大兴安岭开库康—依西肯地区基于证据权重法的金矿预测与评价

随着地质勘查工作的不断深入,找矿难度不断增加,矿产预测评价逐渐向利用综合成矿信息和GIS技术的方向发展。矿产资源评价系统(MRAS)是众多矿产预测评价软件中的一种,在国内得到了广泛的应用。开库康—依西肯地区位于大兴安岭北部,区内已发现多个金矿床,成矿潜力较大。在充分收集和解译开库康—依西肯地区资料的基础上,结合区内矿点分布和典型矿床地质特征,提取地层、构造、化探异常、重力、航磁、遥感等成矿有利信息,利用MRAS中的证据权重法,对开库康—依西肯地区金矿找矿远景进行预测,共圈出6个成矿远景区,并对远景区进行了初步评价。

Mineral prediction and evaluation of gold deposits based on evidence weight method in Kaikukang-Yixiken region of Great Khingan mountains

With increasing difficulty of prospecting work,further geological survey requires that mineral prediction and evaluation turn to the utilization of comprehensive mineralization information and GIS.MRAS is among the many mineral prediction and evaluation softwares and is applied across the country.Kaikukang-Yixiken region with great mineralization potentials is located in the north of Great Khingan Mountains and hosts several gold deposits that have been discovered.Based on sufficient collection and thorough interpretation of data in Kaikukang-Yixiken region and taking into account regional mineralized spot distribution and typical deposit geological features,the paper retrieves fa-vorable information about strata,tectonics,geochemistry anomaly,gravity,aeromagnetic survey and remote sensing.And then evidence weight of MRAS is used to predict the prospecting potentials in Kaikukang-Yixiken region.6 targets are delineated all together and preliminarily assessed.