基于Surpac的石墨矿三维地质建模及资源量估算  

3D geological modeling and resource estimation of graphite deposit by using Surpac

作　　者：田修启[1] 曹渊[1] 蒋永芳[1] 蒋朝军[1] TIAN Xiuqi CAO Yuan JIANG Yongfang JIANG Chaojun(No. 2 Geo-exploration Institute, Henan Provincial Bureau of Geo-exploration and Mineral Development, Zhengzhou 450046,Henan ,Chin)

机构地区：[1]河南省地质矿产勘查开发局第二地质勘查院,河南郑州450046

出　　处：《矿产与地质》2017年第3期641-645,共5页Mineral Resources and Geology

基　　金：河南省2014年度省地质勘查基金项目(第二批;编号:15)资助

摘　　要：Surpac软件是加拿大GEMCOM公司开发的全球应用最为广泛的大型三维矿业软件,在三维可视化建模及资源量储量估算方面具有自动化、高效率的特点。通过分析河南省淅川县下大扒石墨矿矿体地质特征,根据地质勘查工程资料,应用Surpac软件创建了下大扒地质数据库,建立了矿区地表模型、矿体模型和品位块体模型,模型形象直观地展现了勘查区地形地貌、矿体展布位置及形态。应用块体模型和距离幂次反比法,对矿体的品位进行了赋值,并对资源量进行了估算。在此过程中,由于可以方便地优化次级块体单元的尺度,其估算的结果更加接近矿体的实际规模大小。另外还可以利用Surpac图形约束功能,可以快速估算出任意空间范围、任意品位区间的资源量情况,为资源评价提供更为全面的资料数据。因此,应用Surpac三维地质建模在某种意义上是对传统地质工作模式的一种创新,有必要在下一步地质勘查工作中进一步尝试和推广。Software Surpac is the most widely used 3D mining software in the world which is developed by Canada GEMCOM company.Surpac can realize the 3Dvisualization modeling and the estimation of resource and reserve in an automated and effective fashion.Through an analysis on the geological characteristics of Xiadapagraphite deposit in Xichuan of Henan,and based on previous data of geological exploration works in the deposit,this paper created a geological data base of Xiadapa,and established models of the surface of the exploration area,ore bodies and grade blocks by applying Surpac.These models intuitively reflected the topography and landform of the exploration area as well as the distribution and morphology of the ore bodies.The authors also assigned values to grades of ore bodies and conducted estimation on the resource amount by applying block model and Inverse Distance Weighted method.In this process,scale of sub-block units can easily be optimized so as to ensure the estimates being closer to the actual sizes of the ore bodies.Moreover,the function of graphics constraint of Surpac could be useful because it could estimate rapidly the resource in any given space range or within any given grade range,and it could provide full information and data for evaluation of the resource.Therefore it is believed that to some extent the 3Dgeological modeling by using Surpac is an innovation based on the traditional geological work mode,and it worth further attempts and promotion in the future geological exploration works.

关 键 词：下大扒石墨矿 SURPAC软件 三维地质建模 资源量估算 河南 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术] P619.252[自动化与计算机技术—计算机科学与技术]