摘要
东川矿田是我国重要的铜矿带之一,滥泥坪铜矿位于昆阳裂谷以北,矿床成因复杂,矿(化)形态多样。依据现代成矿预测理论,结合已有的地形地质图、中段平面图、勘探线剖面图、钻孔及坑探等资料,基于DIMINE软件建立了滥泥坪铜矿白锡蜡矿段地表模型、地层模型、断裂模型、矿体模型。在此基础上,分别应用水平断面法和距离幂反比法进行了矿体资源储量估算,并将2种估算结果进行了对比分析。结果表明块体模型计算结果更接近矿体实际规模大小,比传统计算方法适用范围更广。在此过程中,利用DIMINE软件的模型约束功能,可以实现任何空间范围、任意品位区间资源量的自动化快速估算,清晰表达矿体品位变化特征,为资源评价提供更为全面的资料数据库。此外,利用多元数据信息进行三维地质建模可视化效果好,可靠性高,有助于从三维角度剖析矿区地质构造特征与矿床成因,是矿山部署下一步地质勘查工作的有效手段。
Dongchuan Ore-field is one of the most important metallogenic belts in China.Lanniping Copper Deposit is located in the north of Kunyang Rift,which characterized by complex origin and various shapes.Based on the modern metallogenic prediction theory,in combination with geological map,planar graph,prospecting line profile map and drilling data/pitting data,and by using DIMINE software,three-dimensional models of the Baixila ore block of Lanniping Copper Deposit is established,which including surface model,stratigrapic model,fault model and ore-body model.Then,reserve estimation by using the level section method and inverse distance weighted method are done.The study results show that the block model statistics method is applicable to a large scope and can obtain better results that the level section method.Moreover,the function of model constraint of DIMINE could be useful because it can estimate rapidly the resource of any given space range or within any given grade range.In addition,it can clearly reflect the variation features of ore grade values,and the calculation result can provide full information and data for resource reserve evaluation.The three-dimensional geological modeling by using multivariate information has several advantages such as better visualization,high reliability,and can be used to analyze the geological structure of the mining area and deposit genesis,besides that,it is an effective means for the next step of geological exploraiton in mine.
作者
汪德文
邹国富
周罕
余璨
马正林
何宗宝
朱雪峰
Wang Dewen;Zou Guofu;Zhou Han;Yu Can;Ma Zhenglin;He Zongbao;Zhu Xuefeng(Kunming Prospecting Design Institute of China Nonferrous Metals Industry Co.,Ltd.)
出处
《现代矿业》
CAS
2020年第6期39-43,共5页
Modern Mining
关键词
铜矿
三维地质建模
储量估算
矿床成因
Copper mine
Three-dimensional geological modeling
Reserve estimation
Deposit genesis
