赤峰-朝阳金矿化集中区元素分带特征及其应用

为了研究赤峰-朝阳金矿化集中区内金矿床的元素轴向分带特征,归纳总结了区内9个矿床的分带序列.结果表明,其分带序列为F-(Ba,As,Sb,Hg)-Au-Pb-Ag-Zn-Bi- Cu-W-(Mo,Co,Ni,Ti),与热液矿床典型综合分带序列和金矿床的综合分带序列相似.利用这一分带序列给出的前缘元素组合和尾晕元素组合建立了(As Ba Sb)/(Bi W 1)、(As Sb)/(Bi W) 等累加指数,并以此预测了撰山子金矿26、28号等矿脉的深部含矿性,后经生产验证预测正确.

ELEMENT ZONING AND ITS APPLICATION IN THE CHIFENG-CHAOYANG AURIFEROUS PROVINCE

To reveal the features of axial element zoning of gold deposits in the Chifeng-Chaoyang auriferous province,zonal sequence for 9 gold deposits in the province have been summarized.The present results indicate that the zonal sequence is F-(Ba,As,Sb,Hg)-Au-Pb-Ag-Zn-Bi-Cu-W-(Mo,Co,Ni,Ti),which is similar to the comprehensive zonal sequence of hydrothermal gold deposits.Based on different assemblages of the front and rear elements,some accumulated indicators like(As+Sb+Ba)/(Bi+W+1) and(As+Sb)/(Bi+W) have been found.These indicators have been applied in the prediction of No.26,No.28 and other lodes in the Zhuanshanzhi gold deposit at depth and have been verified to be correct in mining practice.