基于SD法的资源储量估算及工程控制程度预测——以河南陡坡钼矿区为例  

Resource reserve estimation and engineering controlling degree prediction based on SD method:to take Doupo molybdenum deposit in Henan Province as an example

作　　者：王海生[1] 张晓军[2] 郭跃闪 WANG Haisheng;ZHANG Xiaojun;GUO Yueshan(The 3rd Geological Survey Institute of Mineral Resources,Henan Bureau of Geo-Exploration&Mineral Development,Zhengzhou 450000,Henan,China;Faculty of Earth Resources,China University of Geosciences,Wuhan 430074,Hubei,China)

机构地区：[1]河南省地质矿产勘查开发局第三地质矿产调查院,河南郑州450000 [2]中国地质大学(武汉)资源学院,湖北武汉430074

出　　处：《矿产与地质》2019年第5期925-932,共8页Mineral Resources and Geology

基　　金：河南省两权价款地质科研项目“大别山铜钼金银铅锌成矿系统与成矿预测研究”（豫国土资函〔2015〕258号）资助

摘　　要：SD法适应于不同矿种的矿产勘查和开采阶段。本次估算主要利用河南陡坡钼多金属矿区38个勘探钻孔共3839个单工程样品数据进行了钼储量估算和工程控制程度预测工作。结果显示陡坡矿区(331)+(332)+(333)资源储量已达中型(总矿石量为9463万吨,钼金属量为55361 t,钼平均品位为0.059%);并与传统垂直剖面法估算结果进行了对比,两者金属量误差为0.074%,显示SD法储量估算精度较高;同时利用SD法预测了矿区M-Ⅰ号主矿体工程控制程度,结果显示M-Ⅰ号矿体38个实际工程已使矿区勘查达到“控制的”地质可靠程度;如要达到“探明的”地质可靠程度,需在合适位置加密施工约32个钻探工程,说明SD法具有工程控制程度预测功能和进一步指导勘查工程布置的作用。SD method is suitable in mineral exploration and mining stage for different deposits.In this estimation analysis data of 3839 single engineering samples of 38 exploration drilling holes in Doupo Mo Polymetallic mining area of Henan Province is used to carry out Mo reserve estimation and engineering controlling degree prediction.The result shows that the resource reserves(331+332+333)in Doupo mining area have reached medium scale(the total ore is 94.63 million tons,Mo metal is 55361 tons,and the average Mo grade is 0.059%).The results are compared with those estimated by the traditional vertical profile method,and the relative error of Mo metal is 0.074%between two methods.It is indicated that there is a higher accuracy of reserve estimation by SD method.Furthermore,SD method is used to predict the engineering control degree of M-I main orebody in the mining area.The result shows that 38 practical projects of M-I orebody have made the exploration of mining area reach the"controlled"degree of geological reliability.If we want to reach the"proved"degree of geological reliability,it is necessary to carry out about 32 drilling holes in the appropriate location.It is shown that SD method has the function of engineering control degree prediction and the role of further guiding the layout of exploration engineering.

关 键 词：SD法 资源储量估算 工程控制程度预测 陡坡钼矿床 河南省 

分 类 号：P624.7[天文地球—地质矿产勘探] P618.65[天文地球—地质学]