基于地质统计学的多金属矿床品位动态优化方案  

DYNAMIC OPTIMIZATION SCHEME OF POLYMETALLIC DEPOSIT GRADE BASED ON GEOSTATISTICS

作　　者：刘亭[1] 齐艳妮[1] 张峰 张栋飞 LIU Ting;QI Yan-ni;ZHANG Feng;ZHANG Dong-fei(Northwest Research Institute of Mining&Metallurgy,Baiyin 730900,China)

机构地区：[1]西北矿冶研究院,甘肃白银730900

出　　处：《甘肃地质》2024年第4期90-93,共4页Gansu Geology

摘　　要：矿产资源做为有限的不可再生资源,确定合理的矿床边界品位是矿产资源高效利用的关键,尤其对多金属共伴生矿床而言,如果仍沿用单一指标或用综合品位指标来圈定矿体,势必会对资源产生浪费。本文旨在探讨基于地质统计学的多金属矿床品位优化方法,针对传统边界品位优化方法在处理共(伴)生多金属矿床时的局限性,引入地质统计学理论及单位原矿价值概念,以提高边界品位指标确定的准确性和可信度,通过对矿床品位分布的三维块体模型进行构建和分析,实现了对矿石与废石的有效区分,为矿山的开采和利用提供了科学依据。Mineral resources are limited non-renewable resources,so determining reasonable boundary grade of mineral resources is the key to efficient utilization of mineral resources,especially for polymetallic co-associated deposits.If a single index or comprehensive grade index is still used to delimit ore bodies,resources will inevitably be wasted.This paper aims to discuss the grade optimization method of polymetallic deposit based on geostatistics.In view of the limitations of traditional cut-off grade optimization method in dealing with common(associated)polymetallic deposit,the geostatistics theory and the concept of unit raw ore value are introduced to improve the accuracy and reliability of determining the boundary grade index.By constructing and analyzing the three-dimensional block model of deposit grade distribution,The effective distinction between ore and waste rock is realized,which provides a scientific basis for mining and utilization of mines.

关 键 词：多金属矿床 边界品位 综合利用指标 资源储量模型 采选成本 

分 类 号：P628[天文地球—地质矿产勘探] P618.41[天文地球—地质学]