浅论扬子西南缘卡林型金矿成矿物质来源及有机质在成矿过程中的作用  

A TENTATIVE STUDY OF THE MATTER SOURCE AND THE ROLE OF ORGANIC MATTER IN METALLOGENY OF CARLIN-TYPE GOLD DEPOSITS IN SOUTHWESTERN YANGTZE CRATON,SOUTHWESTERN CHINA

作　　者：任涛[1,2] 张兴春[1] 王守旭[1,2] 冷成彪[1,2] 

机构地区：[1]中国科学院地球化学研究所矿床地球化学国家重点实验室,贵阳550002 [2]中国科学院研究生院,北京100039

出　　处：《地质找矿论丛》2008年第4期287-291,319,共6页Contributions to Geology and Mineral Resources Research

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.

关 键 词：卡林型金矿 有机质 同位素 扬子西南缘 

分 类 号：P611[天文地球—矿床学] P618.51[天文地球—地质学]