摘要
东坪金矿床的氢、氧同位素特征研究表明，成矿作用从早期到晚期，大气降水在流体中的比例呈增高趋势，到晚期碳酸盐重晶石阶段基本上为大气降水。强钾化蚀变岩的氧同位素值与其原岩相比明显较低，亦表明主成矿期有大气降水参与。
The characteristics of H and O isotopes in the Dongping gold deposit show that more and more meteoric water evolved in the oreforming hydrothermal fluid from early to later mineralizations,and the water of the last hydrothermal stage of carbonatebarite consisted of almost the meteoric water.Compared with the 18O value of the primary rock,the 18O value of the intense kfeldspathization rock decreases remarkablely. It implies that the meteoric water played a role in the main metallogenetic stage.
出处
《黄金地质》
1996年第3期36-41,共6页
Gold Geology
关键词
金矿床
氢同位素
氧同位素
成矿流体
gold deposit,H and O isotopes,fluid evolution, Hebei
