金堆城小北露天矿体中深部矿石性质分析

ANALYSIS OF PROPERTIES OF MIDDLE-DEEP SEATED ORES IN JINDUICHENG XIAOBEI OPEN PIT OREBODY

对金堆城钼矿床两种主要矿石类型——安山玢岩和花岗斑岩矿石中Mo、Cu、MFe(磁性铁)的含量及主要矿物赋存特征进行了分析研究。同时对小北露天矿不同标高的花岗斑岩矿石量进行了计算,分析了随采掘平盘的下降,花岗斑岩矿石量,辉钼矿、磁性铁、黄铜矿等的含量,赋存特征,经济技术指标,回收率及产量等参数的变化情况。

The contents of molybdenite, copper pyrite, and magnetic - iron in two kinds of ores, i. e. , andesite and granite - porphyry and existing features of main minerals were studied and analyzed. The quantities of granite - porphyry in different datum marks wre calculated. The quantites of granite - porphyry, the contents of molybdenite, ma- gentic iron and copper pyrite. The existing features, the economic index and recovery ratio and yield along with the lower of digging level were analyzed.