澳大利亚昆士兰州Goldsmiths金矿体三维地质建模与矿体储量计算研究  

Study on 3D Geological Modeling and Reserve Calculation of Goldsmiths Gold Deposit in Queensland in Australia

作　　者：徐昌 杨真亮 赵庆鑫 林永成 刘志宁 XU Chang;YANG Zhenliang;ZHAO Qingxin;LIN Yongcheng;LIU Zhining(No.6 Geological Brigade of Shandong Provincial Bureau of Geology and Mineral Resources(No.6 Exploration Institute of Geology and Mineral Resources),Shandong Ji'nan 264209,China;Shandong Provincial Institute of Land Surveying and Mapping,Shandong Ji'nan 250014,China)

机构地区：[1]山东省地质矿产勘查开发局第六地质大队(山东省第六地质矿产勘查院),山东威海264209 [2]山东省国土测绘院,山东济南250014

出　　处：《山东国土资源》2024年第9期59-66,共8页Shandong Land and Resources

摘　　要：三维地质建模是“数字矿山”的关键技术,利用该技术进行隐伏矿体定量计算已成为矿产勘查领域的热点。本文使用多源数据构建三维模型,对澳大利亚昆士兰州Goldsmiths金矿体进行了综合分析,实现目标金矿体的三维真实展示。依据地质统计学原理完成矿产资源量估算,对其精度与传统块段法进行比对分析。利用3Dmine软件构建三维实体模型,直观展示了研究矿体的规模、形态及空间展布特性,真实再现了矿体所在各个空间位置的品位、岩性等属性信息。通过与SD法、传统块段法计算结果的比对,反映了利用矿体实体模型计算储量的可行性,对后期的矿产研究工作及采矿设计具有深远意义。Three dimensional geological modeling is a key technology for"digital mining".Application of this technology for quantitative calculation of concealed ore bodies has become a hot topic in the field of mineral resources exploration.In this paper,by using multi-source data,a three-dimensional model has been constructed,and ore bodieds of Goldsmiths gold deposit in Queensland in Australia have been analyzed comprehensively.Three-dimensional realistic display of the target gold deposit has been realized.Based on the principles of geostatistics,estimation of mineral resources has been completed,and its accuracy with the traditional block method have been compared and analyzed.By using 3Dmine software,a 3D solid model,the scale,shape,and spatial distribution characteristics of the studied ore bodies have been visually displayed,and the grade,lithology,and other attribute information of the ore bodies at various spatial locations have been realistically reproduced.By comparing the calculation results with SD method and traditional block method,the feasibility of using the ore body entity model to calculate reserves has been reflected.It has profound significance for later mineral research work and mining design.

关 键 词：三维建模 地质统计学 储量计算 3Dmine 空间特性 

分 类 号：P208[天文地球—地图制图学与地理信息工程]