云南普朗铜矿三维地质建模及储量估算  

Three-dimensional Geological Modeling and Reserves Estimation of Pulang Copper Deposit in Yunnan Province

作　　者：羊劲松 余璨 冯兴隆 陈婷 孔垂爱 

机构地区：[1]云南迪庆有色金属有限责任公司 [2]中国有色金属工业昆明勘察设计研究院有限公司 [3]昆明市测绘研究院

出　　处：《现代矿业》2017年第5期48-53,共6页Modern Mining

摘　　要：基于DIMINE三维矿业软件,系统收集整理了普朗铜矿首采区的钻探/坑探数据及二维平面/剖面图等地质勘探资料。针对首采区内KT_1矿体规模较大、形态简单的特征,通过构建地质数据库对矿体进行圈定,创建了该矿体的三维实体模型,实现了普朗铜矿首采区地质资料的数字化及三维可视化。在对Cu组合样品进行统计分析的基础上,通过反复校验和计算,选取矿体走向、倾向及厚度方向作为研究方向,建立了Cu品位变异函数模型,选取普通克里格法对Cu品位进行赋值,并通过赋值推估结果对矿床资源储量进行估算。分别采用传统地质块段法、普通克里格法对首采区内KT_1矿体进行资源/储量类别划分,并分别估算出了111b、122b、2S11、2S22及333类别资源量,结果表明,普通克里格法储量类别划分更合理,资源储量的估算精度较高,可为实现该矿山资源动态管理提供重要理论依据。A large number of geological exploration data （ drilling data/pitting data and two-dimen- sional planar/profile graph） of the first mining area in Pulang mining area are collected systematically by using DIMINE software. According to the large scale and simple morphology characteristics of ore-bodies in the first mining area of Pulang Copper Mine, the ore boundaries are delineated by establishing geological database, the three-dimensional solid model of the ore-bodies is established and the digitalization and three-dimensional visualization of the first mining area in Pulang copper deposit are realized. Based on the statistical analysis of copper composite samples, the variogram model of copper grade is constructed along the strike, dip and thickness direction by checking and calculating repeatedly. Besides that, the copper grade is assigned by adopting the ordinary Kriging method, and the reserves estimation of Pulang copper deposit is conducted based on the assigned results. The classification of the resources/reserves of KT1 ore- body is conducted respectively and the resources estimation of 111 b, 122b, 2S11 2S22 and 333 resources are done respectively based on the traditional geological block method and ordinary Kriging method. By the comparative analysis of the computation results of ordinary Kriging method and the ones of traditional geological block method, it is conducted that the classification results of resources resources/reserves of ordinary Kriging method is more reasonable and accurate than the ones of traditional geological block method. The analysis results related to the three-dimensional geological modeling and reserves estimation of Pulang copper deposit in Yunnan Province can provide some reference for the resources/reserves dynamic management of Pulang copper deposit.

关 键 词：铜矿 三维地质建模 储量估算 变异函数模型 地质块段法 普通克里格法 

分 类 号：P618.41[天文地球—矿床学] P628[天文地球—地质学]