桂东大瑶山地区金矿床成因及成矿时代研究  

STUDY ON GENESIS AND MINEROGENETIC EPOCH OF GOLD DEPOSITS IN DAOYAOSHAN,EAST GUANGXI

作　　者：蔡明海[1] 刘国庆[1] 战明国[1] 

机构地区：[1]宜昌地质矿产研究所,宜昌443003

出　　处：《华南地质与矿产》2000年第3期58-63,共6页Geology and Mineral Resources of South China

基　　金：地矿部"九五"科技攻关"云开地区重要成矿带金;银;铜;铅;锌成矿地质背景及找矿靶区优选研究"项目!二级课题"桂东大瑶山地区六岑

摘　　要：从地质事件历史演化角度 ,结合稳定同位素地球化学及微量元素特征对大瑶山地区金矿床进行了研究 ,提出该地区金矿床属于与含炭浊积岩有关的沉积富集 -热液改造型金矿床。成矿过程经历了早期沉积初始富集 ,中期 (加里东晚期 )岩浆热液型金矿化及晚期热液改造三个阶段 ,晚期为金的主成矿期。主成矿期含金石英脉石英流体包裹体Rb -Sr年龄为 148± 10Ma ,成矿时代属燕山早期。Based on geological evolution and studies on stable isotope and trace elements geochemistry of gold deposits in Dayaoshan area, eastern Guangxi, the authors conclude that gold deposits belongs to sedimentary enrichment hydrothermal superimposition type related to carbonaceous turbitite, undergoing early stage of sedimentary enrichment, Caledonian stage of magmatic hydrothermal mineralization, and later hydrothermal superimposition which is the main metallizing period with fluid inclusion Rb Sr isochron age of quartz to be 148±10Ma.

关 键 词：金矿床 矿床成因 成矿时代 大瑶山 地质特征 

分 类 号：P618.51[天文地球—矿床学]