西藏白容-岗讲铜(钼)矿三维地质建模及储量估算

Reserve Estimation and Establishment of Three-dimensional Geological Model of Bairong-Gangjiang Cu( Mo) Deposit,Tibet

基于DIMINE软件,系统整理并数字化了白容—岗讲铜(钼)矿区大量的地质勘探资料,针对矿体簇型分布且矿脉纤细的特点,利用生成的钻孔数据库重新圈定了矿体,构建了白容—讲岗铜(钼)矿的地层模型、岩体模型及矿体模型,实现了矿区深部地质数据的三维可视化。经过反复计算校验,选取距离幂次反比法对该矿床内Cu、Mo品位进行赋值,并通过赋值结果对矿床资源储量进行估算和统计。结果表明:白容—岗讲铜(钼)矿区三维地质模型可从三维角度揭示矿区成矿规律以及地质体在地下的空间关系,为估算矿山资源储量提供了便利;在矿山三维地质建模的基础上采用距离幂次反比法估算资源储量精度较高,对于实现矿山资源动态管理具有一定的参考价值。

A large number of geological exploration data of Bairong-Guangjiang Cu （Mo） mining area are collated and digitized based on DIMINE software. According to the characteristics of the ore-bodies and mineral veins of Bairong-Gangjiang Cu（Mo） mining area, the ore-bodies are delineated again and the formation model, rock mass model and ore-body model of Bairong-Gangjiang Cu（Mo） mine are established by the generated drilling database so as to realize the three-dimensional visu- alization of the geological data in the deep Bairong-Gangjiang Cu（Mo） mining area. The Cu and Mo grades are assigned by a- dopting the distance power inverse ratio method by checking and calculating repeatedly. Based on the assigned results, reserves estimation and statistics of the Bairong-Guangjiang C^（Mo） mine are conducted. The research results show that the three-di- mensional geological model of the Sairong-Gangjiang 6u（no） mining area established in this paper can reveal tl^e metallogenic regularities and the underground space distribution characteristics of the geological bodies from the perspective of three-dimen- sional, and it provides convenience for estimating the reserves of mineral resources ; the precision of reserve estimation is high by using the distance power inverse ratio method based on the three-dimensiol geological model of Bairong-Guangjiang Cu（Mo） deposit. Therefore, it has some reference for realizing the dynamic management of mine resources.