河南省龙王庙金矿区三维地质模型构建及储量计算研究  

The 3D Geological Model Construction and Reserves Calculation of Longwangmiao Gold Mining Area in Henan Province

作　　者：耿咏梅 陈丽娟 王小高 冯雪珍 GENG Yongmei;CHEN Lijuan;WANG Xiaogao;FENG Xuezhen(General Institute of Non-ferrous Metals Geological Exploration of Henan Province,Zhengzhou 450052,China;Key Laboratory of Deep Ore-prospecting and Exploration Technology Research for Non-ferrous Metals of Henan Province,Zhengzhou 450052,China)

机构地区：[1]河南省有色金属地质勘查总院,郑州450052 [2]河南省有色金属深部找矿勘查技术研究重点实验室,郑州450052

出　　处：《河南科学》2021年第3期429-434,共6页Henan Science

基　　金：河南省有色金属地质矿产局基金项目。

摘　　要：基于三维矿业软件,可快速实现矿体品位和储量的精准估算.河南省龙王庙金矿为一中型金矿床,借助3DMine三维矿业软件,根据河南省龙王庙金矿区地质勘探资料建立钻孔数据库,构建了矿区三维地质模型;确定合适的块体尺寸对块体模型内部进行划分,采用距离幂次反比法对矿体内部特性数据进行赋值估算;最后完成矿体品位和资源储量估算,并与传统的地质块段法计算的结果进行了对比.在3DMine软件中使用距离幂次反比法估算的Au矿石量和Au资源储量分别为169.47万t、7396.69 kg,与原地质报告采用的传统块段法估算的176.04万t和7732.44 kg相比,差值控制在误差范围(+5%)内.这说明采用3DMine软件构建矿区三维地质模型并进行资源储量估算是可行的,估算的储量结果是可靠的.Based on 3D mining software,accurate estimation of ore body grade and reserves can be realized quickly.Longwangmiao gold mining area is a medium-sized gold deposit in Henan Province.This paper establishes a borehole database according to the geological exploration data of the mining area,and constructs a three-dimensional geological model of the mining area by using 3DMine software.Then,a appropriate block size is determined to divide the block model,and distance power inverse ratio method is used to evaluate the inner characteristic data of ore body.Finally,the grade and reserves of ore body are estimated and compared with the results calculated by traditional geological block method.In 3DMine software,the ore volume and resource reserve of Au estimated by distance power inverse ratio method are respectively 1694.7 kiloton and 7396.69 kg.Compared with the estimated 1760.4 kiloton and 7732.44 kg by the traditional block method used in the original geological report,the difference is controlled within the error range(+5%).This shows that it is feasible to use 3DMine software to build a 3D geological model of the mining area and estimate the resource reserves,and the estimated reserve results are reliable.

关 键 词：三维地质模型 3DMine矿业软件 品位 储量 距离幂次反比法 

分 类 号：P62[天文地球—地质矿产勘探]