薄层状矿体自动圈定矿层地质建模方法  

Geological modeling method of automatically delineating thin-layer ore body

作　　者：周坤[1] 

机构地区：[1]中国恩菲工程技术有限公司,北京100038

出　　处：《中国矿山工程》2011年第6期5-8,12,共5页China Mine Engineering

摘　　要：传统的计算机矿床地质模型的建立方法是根据剖面钻孔数据资料,在剖面上人工对矿体进行圈定线圈,再在三维空间将各剖面连接成线框(Wireframe),形成三维封闭的矿体。对于特定的薄层矿体,因为矿层高程方向相对于水平方向极小,矿层薄,剖面间相对距离较大,手工方法圈定出的线圈难以在三维空间连接成三维地质模型,从而难以计算地质资源量。本文以国外某大型红土型镍矿为例,借助矿业软件Datamine Studio,探讨用地质统计学方法建立三维地质模型,以准确估算地质资源量和服务采矿设计。The traditional deposit geological computer modeling is manually outlining orebody on the sections and linking each section to a closed wireframe to form a 3D orebody model according to the drill data on the sections.The very thin ore body intersection is extremely smaller compared with its width,so the relative distance among sections is large,and it is difficult to form 3D orebody model manually,and the geological resources reserve is difficult to calculate.Some large-scale lateritic nickel mine is taken as example,and based on Datamine Studio,it is discussed that the geostatistics method is used to build 3D geological model to accurately estimate geological resources reserve and serve mining design.

关 键 词：地质统计学 矿床模型 资源量估算 Datamine软件二次开发 

分 类 号：P628[天文地球—地质矿产勘探]