Lithium Isotope and Its Application to Jiajika Pegmatite Type Lithium Polymetallic Deposit in Sichuan Province
详细信息
- 责任者：Su Aina (Key Laboratory of Metallogeny and Mineral Assessment ; MLR ; Institute of Mineral Resources ; Chinese Academy of Geological Sciences ; Beijing 100037 ; China) ; Tian Shihong
- 刊名：Geoscience
- 出版年：2011
- 卷期：25(2)
- 关键词：锂矿 ; lithium ores ; 多金属矿 ; polymetallic ores ; 锂同位素 ; lithium isotopes ; 四川 ; Sichuan Province
- 页码：p.236-242
- 图表：2 illus., 1 table, 48 refs.
- 分类号：1001
- issnNo：ISSN1000-8527
- isbnNo：CN11-2035/P
摘要
As a useful geochemical tracer, lithium isotope system has been used to study some important geological or geochemical issues. This paper summarizes the recent advances in research on lithium isotopes and its application to Jiajika pegmatite type lithium polymetallic deposit in Sichuan Province. The Jiajika deposit is the largest pegmatite type Li-polymetallic deposit in China. Samples from Jiajika deposit were analysed by MC-ICP-MS in the University of Maryland.Two samples of spodumene contain 33 592×10-6 and 34 264×10-6 Li and have δ7 Li values of -0.6 ‰ and -0.4‰. One sample of biotite in two-mica granite contains 7 350×10-6 Li and has δ7Li value of +0.6‰. They are consistent in the uncertainty range. Therefore, following interpretations of published data of C, H and O isotopes, fluid inclusions and chronology, the authors consider that spodumenes in the lithium polymetallic deposit may have originated from the granite, suggesting that ore-forming fluids were also derived from the granite.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |