摘要
在前人研究的基础上,对扬子西缘卡林型金矿采用稳定同位素和生物化学试验方法,分析赋金地层中有机质的种类、性质和有机质与金矿的关系,讨论有机质在金元素富集、迁移、成矿过程中的作用。认为赋金地层与后期岩浆热液发生广泛的交换作用,萃取出成矿物质形成成矿流体,这种富含成矿物质的热液流体在一定的条件下富集成矿。
Since 1970s, Carlin-type gold deposits have been discovered in the southwestern Yangtze Craton in China. Many predecessors made researches on the ore-forming materials and metallogeny. On basis of the researches this paper applies stable isotope and biochemistry and combines the analysis of the types and nature of organic matter in the ore-bearing strata and studies on the relation between organic matter and gold deposits to discuss the role of organic matter in accumulation and transportation for the gold. A wide-ranging exchange occurred between the ore-bearing strata and the late magmatic hydrothermal fluid with gold-minerals extracted to form Carlin-type gold deposits under certain conditions.
出处
《地质找矿论丛》
CAS
CSCD
2008年第4期287-291,319,共6页
Contributions to Geology and Mineral Resources Research
关键词
卡林型金矿
有机质
同位素
扬子西南缘
Carlin-type gold deposit
organic matter
stable isotope
the southwestern Yangtze Craton
