基于3DMine软件在西秦岭庙沟金矿资源量估算中的应用  

Application of 3DMine Software in the Estimation of Gold Resources in Miaogou Gold Mine,West Qinling

作　　者：朱德鹏 豆浪浪 杜建华 张少华 任建梅 Zhu Depeng;Dou Langlang;Du Jianhua;Zhang Shaohua;Ren Jianmei(Shaanxi Geo-Minerals Third Geological Team Co.,Ltd.Baoji 721300,Shaanxi,China)

机构地区：[1]陕西地矿第三地质队有限公司,陕西宝鸡721300

出　　处：《陕西地质》2024年第2期71-78,共8页Geology of Shaanxi

摘　　要：陕西凤县庙沟金矿床位于商丹构造混杂岩带之中,是凤太矿集区近年来新发现的金矿资源。该矿床共圈定了7条金矿体,矿体在形态上呈现出似层状与透镜状的特征,使得矿体资源量的计算工作显得尤为复杂。3DMine矿业工程软件其资源/储量估算模块已在国内外众多大型矿床中得到成功应用。该模块的应用流程涵盖了原始数据的整理、化学样品统计分析、矿体模型构建、矿块模型的建立与赋值、矿体资源量的科学估值以及类别分析等关键环节。本文以庙沟金矿的KT3-2主矿体为例,采用3DMine工程软件中的距离幂次反比法进行品位估值,成功完成了矿体资源量的估算。并与传统的地质块段法估算结果进行了对比,对品位误差和资源量误差的原因进行了初步分析。结果显示,3DMine软件在资源量估算方面具有较高的可靠性,为庙沟金矿及类似矿区的资源量估算提供了有益的参考和借鉴。The Miaogou gold deposit,located in Fengxian County,lies within the Shangdan structural mixed rock belt.This recently discovered deposit in the Fengtai mining area contains seven distinct gold ore bodies,which are primarily layered and lenticular in shape.Due to these complex formations,calculating the deposit's resources presents significant challenges.3DMine mining engineering software,developed by Beijing Sandiman Mining Software Technology Co.,Ltd.,is a comprehensive package that has been successfully used to estimate resources and reserves in numerous large-scale mineral deposits worldwide.The software's process includes organizing raw data,analyzing chemical samples,building ore body models,creating ore block models,assigning values,estimating resources,and conducting category analysis.This study focuses on the KT3-2 main ore body of Miaogou Gold Mine to demonstrate the fundamental principles and key technologies of the 3DMine resource estimation method.Special attention is given to the inverse distance weighting method for grade estimation and the completion of ore body resource calculations.The study compares these results with those obtained through traditional geological block methods and analyzes the factors causing differences in grade and resource quantity estimates.Initial findings indicate that the resource quantities estimated using 3DMine software show high reliability,making it a valuable tool for estimating mine resources in the region.

关 键 词：3Dmine 三维地质建模 距离幂次反比法 资源量估算 庙沟金矿 

分 类 号：P618.51[天文地球—矿床学]