Applications of Cu Isotopes on Studies of Mineral Deposits: A Status Reportoft-com:office:office" />
详细信息
- 责任者：Wang Yue (Laboratory of Isotope Geology ; MLR ; Institute of Geology ; CAGS ; Beijing 100037 ; China) ; Zhu Xiangkun
- 刊名：Journal of Jilin University
- 出版年：2010
- 卷期：40(4)
- 关键词：铜同位素 ; copper isotopes ; 成矿系统 ; metallogenic system ; 甘肃 ; Gansu Province
- 页码：p.739-751
- 图表：11 illus., 4 tables, 42 refs.
- 分类号：1001
- issnNo：ISSN1671-5888
- isbnNo：CN22-1343/P
摘要
According to distribution of Cu isotope in various sources, types of ore deposit as well as copper-bearing minerals, the authors suggest the composition Cu isotope be used to trace ore-forming temperature, fluid exsolution, mineralization process and deep mineralization. Values of δ65Cu in low-temperature deposits vary more largely than those in high-temperature deposits. Cu isotopes fractionated during the fluid exsolution and the light Cu isotope is preferentially enriched in the early exsoluted fluid while heavy Cu isotope enriched in later exsoluted fluid. In addition, in an ore-forming system, light Cu isotope enrichment of leaching cap may reflect strong leaching occurred, and then indicates the Cu mineralized enrichment zone occur in deep.