摘要
通过对蛇屋山金矿氢氧碳硫同位素地球化学研究,结合矿床地质特征分析,探讨了主要载金矿物的形成条件与氢氧碳硫及成矿流体的来源,指出内生成矿期的成矿流体为大气降水深循环并与海相碳酸盐发生了广泛的水岩交换,形成了原生微细浸染型金矿化,其后在表生条件下金进一步富集而形成了金矿床中粘土质矿石主矿层。
Based on geochemical study of carbon, hydrogen,oxygen and sulfur isotopes and analyses of metallogenetic geological conditions of the Shewushan gold deposit, the forming conditions of main gold-bearing minerals and origin of metallogenetic fluids of the deposit have been discussed. It is concluded that: (1) the ore-forming fluids came from the ancient atmospheric water which had experienced deep recycling and extensive water-rock exchange with marine carbonate; (2)the water-rock exchange resulted in the primary micro-and fine-grained disseminated gold mineralization; (3)the laterite-type ore beds of the gold deposit within the hypergenic zone were formed during later weathering process.
出处
《华南地质与矿产》
CAS
1999年第4期30-36,共7页
Geology and Mineral Resources of South China
基金
地质矿产部湖北地勘局科研项目"鄂南红土型金矿成矿条件
成矿机制研究与靶区优选"的部分成果
