摘要
吉林夹皮沟金矿是我国与太古宙绿岩带有关的典型脉型金矿之一。根据岩脉与矿脉的穿插关系及单颗粒水热锆石U-Pb同位素年龄和石英的K-Ar,^(40)Ar-^(39)Ar,Rb-Sr年龄测定,表明夹皮沟金矿的主成矿期为2469-2475Ma,并有1800-2000Ma和272-130Ma的矿化叠加现象,构成了夹皮沟乃至中国与绿岩带有关的脉型金矿“一老(晚太古代-早元古代)一新(中生代)”的成矿格架。
The Jiapigou gold deposit is one of the typical vein-type gold deposits associated with Archaean greenstone belts in China. According to the crosscutting relationships between dykes and ore veins, single hydrothermal zircon U-Pb ages and quartz K-Ar, 40Ar-39Ar and Rb-Sr ages, the main metallogenic epoch of the Jiapigou gold deposit is 2469 - 2475 Ma, while mineralization superimposition on the gold deposit occurred in 1800-2000 Ma and 130 - 272 Ma. They constitute the metallogenic framework of 'one older metallogenic epoch (Archaean-Early Proterozoic) and one younger metallogenic epoch (Mesozoic)' of gold deposits in the Archaean greenstone belts in China.
出处
《地质学报》
EI
CAS
CSCD
北大核心
1996年第4期335-341,共7页
Acta Geologica Sinica
基金
国家"八.五"重点黄金科技攻关项目(编号90051-01)
国家黄金管理局项目(编号92-94-40)的资助
关键词
成矿时代
金矿床
铀
铅
同位素测年
metallogenic epoch, hydrothermal zircon, gold deposit, Jiapigou, Jilin
