福建邱村金矿地质特征及矿床成因

发布时间：2018-06-14 13:12

  本文选题：围岩蚀变 + 矿石矿物　； 参考：《矿物岩石地球化学通报》2017年04期

【摘要】：为研究福建邱村金矿的矿床成因,对围岩蚀变、矿石矿物成分及流体包裹体进行了研究。围岩蚀变研究表明,金矿化与石英(玉髓)-伊利石-黄铁矿-碳酸盐矿物组合相关,为一套典型低硫型浅成低温热液蚀变组合。电子探针成分分析显示,银金矿中金含量为62%~69%,银含量为28%~33%,金的成色平均为674。包裹体岩相学及显微测温结果显示,含金石英脉中以富液相两相包裹体为主,偶见少量富气相包裹体;富液相两相包裹体的均一温度为180~250℃,盐度为0.5%~3.0%Na Cleq。激光拉曼测试表明,包裹体气相成分以水为主。上述结果均表明邱村金矿床应属于低硫型浅成低温热液矿床。
[Abstract]:In order to study the genesis of Qiucun gold deposit in Fujian Province, the alteration of surrounding rock, mineral composition of ore and fluid inclusions were studied. The study of wall rock alteration shows that gold mineralization is related to quartz (chalcedony, Illite, pyrite and carbonate mineral assemblage), and is a typical low-sulfur epithermal hydrothermal alteration association. The electron probe analysis showed that the gold content in the silver gold deposit was 622 ~ 6910 and the silver content was 28 ~ 33. The average gold color was 674. The results of petrography and microthermometry show that the rich liquid phase two phase inclusions are dominant in gold bearing quartz veins, and a few rich gas inclusions are occasionally found, and the homogenization temperature of liquid rich two phase inclusions is 180 ~ 250 鈩，

本文编号：2017498