河北水晶屯金矿隐伏找矿靶区钻孔岩芯地球化学特征及成矿预测

水晶屯金矿区2个深部验证钻孔岩心样品的11 种元素分析结果表明,各个矿化带中Au、Bi、Ag 高度相关,As、Hg 的相关性也很高。在ZK1钻孔的509～517m矿化段,ZK2的380～420m矿化段,Au、Ag、Cu、Pb、Zn、As、Sb、Bi 、Hg 的相关性非常高,而与Mo、W呈负相关关系,表明该段为矿化富集带。与之相反,在非矿化段中各元素的相关性不是太好。相关分析结果表明,元素Bi、Ag可作为该矿区深部化探找金的指示元素,预测靶区处于隐伏矿体的头部,深部找矿潜力很大。

The Geochemical Characteristics of Drill Cores and Metallogenic Prognosis in the Concealed Prospecting Target of Shuijingtun Gold Deposit, Hebei Province

The Hierachical Cluster analysis of eleven elements in two deep validated drill holes in Shuijingtun gold deposit indicates that Au-Bi-Ag are highly correlated and As-Hg are also highly correlated in each mineralized belts. In the ore zones between 509 and 517 meters of ZK1 and between 380 and 420 meters of ZK2, the correlation of Au-Ag-Cu-Pb-Zn-As-Sb-Bi-Hg is very high. However, they have negative relations with Mo and W. Therefore, these bands are highly mineralized. On the contrary, the correlation of these elements is very low in the non-mineralized bands. The correlation analysis indicates that Bi and Ag could act as the indicators for deep gold geochemical exploration. As a result, the prospecting target should lie in the head of concealed ore zones and there is a large potential for gold prospecting in the depth.