云南冶金2026，Vol.55Issue(4)：1-8,23,9.
不规则矿体矿化域资源量估算方法研究
Study on Resource Estimation method of Mineralized Zones in irregular Ore Bodies
摘要
Abstract
The orebody of the Pulang Copper Mine is a porphyry copper mine spatially shaped like a cylinder with highly irregular boundary geometry.The parallel section method is adopted for orebody resource estimation.For volume calculation,the areas of industrial ore and low-grade ore are summed separately before correlative calculation between adjacent sections,which leads to overestimated results compared with actual reserves.To compare the influences of different estimation methods on resource calculation of irregular ore bodies,three-dimensional models of the entire mineralized domain,partial mineralized zone and interlayer waste rock were established based on the DIMINE 3D mining software.The geostatistical method was applied for resource estimation,and the results were compared with those obtained by the parallel section method.Meanwhile,the resource estimation results of mineralized zones with waste rock excluded and full mineralized zones were also compared.The study shows that the difference ranges of ore tonnage estimated by the full mineralized zone method,partially mineralized domain method and parallel section method are 0.73％～1.48％;the difference ranges of metal grade are 2.13％～6.38％;and the difference ranges of metal quantity are 2.38％～3.92％.After removing interlayer waste rock,the ore tonnage decreases by 2.16％,the metal grade rises by 2.27％,and the metal quantity decreases by 1.54％compared with the full mineralized zone model.For thick and large irregular porphyry ore bodies,it is feasible to adopt the geostatistical method based on the full mineralized zone for resource estimation,and the estimation results become ore reasonable after eliminating the interference of interlayer waste rock.关键词
普朗铜矿/资源量估算/地质统计学/克里格法/全矿化域/半矿化域/平行断面法Key words
Pulang Copper Despsit/resource estimation/geostatistics/Kriging Method/entire mineralized domain/partially mineralized domain/parallel section method分类
天文与地球科学引用本文复制引用
羊劲松,张达兵,胡明川,杨家宏,王晟,沙文忠..不规则矿体矿化域资源量估算方法研究[J].云南冶金,2026,55(4):1-8,23,9.基金项目
云南省重大科技专项计划(202402AB080010) （202402AB080010）
