三家子金矿床位于冀东金矿成矿带东部,F7断裂是三家子金矿床主干断裂,含金石英脉多呈"入"字型分布在F7断裂的上盘且成群出现,主要含金石英脉有7号、3号和2号. 在采矿巷道采集了142件样品,通过对21种元素进行的R型聚类分析,结果表明:三家子金矿床最佳前缘晕指示元素组合为As、Sb、Hg;近矿晕指示元素组合为Au、Ag、Pb;尾晕指示元素组合为Co、Ni、W、Mn、Mo、Bi. 进而确定了矿区最佳指示元素组合,成矿原生晕轴(垂)向分带序列. 通过对原生晕数据处理分析,根据比值变化规律,提出三家子金矿床在深部还存在巨大找矿前景.
Sanjiazi Gold Deposit is located in the eastern part of East Hebei Gold Mineralization Belt. F7 fault is the major fault of Sanjiazi Gold Deposit. Gold-hosting quartz veins usually stretch in a "λ" shape in groups along the hanging wall of F7 fault. The main gold-hosting veins include No. 7,3 and 2. 142 samples are collected from mining roadways. 21 elements are analyzed by R type cluster analysis to determine the optimal combination of indicator ele-ments and the vertical zoning sequence of metallogenic primary halos. The results show that the optimal indicator ele-ments for front halos are As,Sb,Hg;Au,Ag,Pb for mineral halos;and Co,Ni,W,Mn,Mo,Bi for rear halos. Through processing and analyzing the primary halos data and by observing the ratio change rules,the paper thinks that this re-gion bears huge prospecting scope deep in Sanjiazi Gold Deposit.
参考文献
| [1] | 梅燕雄 .冀东金矿成矿特征及成矿演化[D].中国地质科学研究院,1997. |
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