延边地区浅成低温热液-斑岩型金矿成矿系列的氢、氧同位素特征  

THE HYDROGEN AND OXYGEN ISOTOPE CHARACTERISTICS OF EPITHERMAL-PORPHYRY GOLD SERIES IN YANBIAN REGION

作　　者：梁俊红[1] 金成洙[1] 王建国[2] 

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳110004 [2]中国地质大学,北京100083

出　　处：《地质找矿论丛》2003年第2期108-112,共5页Contributions to Geology and Mineral Resources Research

摘　　要：　延边地区浅成低温热液-斑岩型金成矿系列的氢、氧同位素研究表明,δ(18O)=-10×10-3～+5×10-3,δ(D)=-120×10-3～-40×10-3。小西南岔金(铜)矿床早期成矿流体主要以岩浆水为主,成矿晚期有少量大气降水的加入,为典型的斑岩型金铜矿床;刺猬沟、五凤金矿床成矿流体主要以大气降水为主,水岩作用比值W/R=0.2～2,为浅成低温热液型矿床;闹枝金矿床的成矿流体是介于上述两种类型之间的过渡型。The research of ore fluid of epithermalporphyry gold series indicates that δ18O=-10‰^+5‰ and δD=-120‰^-40‰. In Xiaoxinancha gold (copper) deposit, the early oreforming is mainly magmatic water into which, only a little atmospheric water is incorporated in the later stage. It is a typical porphyry Au deposit. Much precipited water participated ore formation in Ciweigou and Wufeng epithermal gold deposit with W/R of 0.2~2. The ore fluid of Naozhi deposit is the transitional type between the above two types.

关 键 词：浅成低温热液—斑岩型金成矿系列 氢、氧同位素 水/岩比值 延边地区 吉林省 

分 类 号：P618.51[天文地球—矿床学] P597.2[天文地球—地质学]