内蒙红花沟金矿床同位素地质特征及矿床成因探讨  

ON GEOLOGICAL FEATURE OF ISOTOPES AND GENESIS OF HONGHUAGOU GOLD DEPOSIT, INNER MONGOLIA

作　　者：邱玉民[1] 谢锡才[1] 

机构地区：[1]沈阳黄金学院地质系,11015

出　　处：《矿产与地质》1992年第4期318-325,共8页Mineral Resources and Geology

摘　　要：通过对红花沟金矿床主要岩类及金矿石的氧、氢、铅、钾-氩和铷锶同位素的测定,研究了该矿的同位素地球化学特征,探讨了成矿物质来源、成矿时代、成矿温度等矿床成因问题。认为成矿物质来自建平群变质岩,元古宙钾长花岗岩的成岩作用使金活化迁出而成矿。成矿热液以岩浆水为主,并有部分大气降水混入,成矿温度为250～350℃。The isotopic compositions of S. O. H. C. Pb. K-Ar and Rb-Sr in major host rocks and ores from Honghuagou gold deposit are analysed. The isotopic geochemical characteristics of the gold deposit is discussed. And the source of ore-formingmaterials,minerogenetic time and mineralization temperature and other factors on ore origin are also studied in this paper. The results show that ore-forming materials originally come from Archean Jianping Group metamorphic rocks. The diagenesis of Proterozoic kaligranite made the gold activated, transported and formed the gold deposit. The ore-forming hydrothermal solution consists of magmatic water mainly and a part of meteoric water. The ore-forming temperature of the gold deposit varies in 250-350℃.

关 键 词：金矿床 同位素 地质特征 矿床成因 

分 类 号：P618.510.2[天文地球—矿床学]