地质统计学在藏北波龙铜矿床资源量估算中的应用  

Application of geostatistics to resource volume estimation of Bolong copper deposit in northern Tibet

作　　者：董玉杰 甘常云 肖扬[2] DONG Yujie;Gan Changyun;Xiao Yang(No.5 Geological Party,Tibet Bureau of Geology and Mineral Exploration and Developmant,Golmud 816000,Qinghai,China;Sichuan Metallurgical Geological Exploration Institute,Chengdu 610051,Sichuan,China)

机构地区：[1]西藏自治区地质矿产勘查开发局第五地质大队,青海格尔木816000 [2]四川省冶金地质勘查院,成都810051

出　　处：《地质找矿论丛》2024年第3期436-444,共9页Contributions to Geology and Mineral Resources Research

摘　　要：藏北波龙铜矿床是产于班公湖—怒江缝合带北缘多龙矿集区的超大型斑岩型铜矿。目前,矿床资源量已突破400×10^(4)t。文章以3D Mine Plus软件作为资源量估算平台,通过地质数据库建设,搭建矿体实体模型,分析处理特异值,选定样品等长度组合,确定块体模型、变异函数模型、搜索椭球体等参数和块体品位插值,资源量估算等步骤,对波龙矿体的资源量进行了比较准确的估算,并以距离反比法等方法进行验证。结果表明,应用该估算方法相对误差较小,符合客观实际,为该矿床的资源开发和后续找矿工作提供科学依据。Bolong Cu deposit in North Tibet is a super-large porphyry copper deposit with present resources volume over 400×10^(4) t located in Duolong ore deposit-clustered area at the north margin of Bangonghu lake-Nujiang suture.In this paper is built the geological database ore body entity model of the deposit,specific value analyzed and processed,sample length combination selected,block model and variation function model determined,ellipsoid parameters and block grade interpolation value searched,relatively accurate resource volume of the deposit estimated on basis of software 3D Mine Plus.The estimation is checked by distance inverse method with relative small error conforming to the objective reality and providing scientific basis for the deposit resource development and subsequent prospecting work.

关 键 词：波龙铜矿床 地质统计学 3D Mine Plus软件 资源量估算 西藏自治区 

分 类 号：P628.2[天文地球—地质矿产勘探] P618.41[天文地球—地质学]