现代地质2011，Vol.25Issue(2)：236-242,7.
锂同位素及其在四川甲基卡伟晶岩型锂多金属矿床研究中的应用
Lithium Isotope and Its Application to Jiajika Pegmatite Type Lithium Polymetallic Deposit in Sichuan
摘要
Abstract
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.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 33592 × 10-6 and 34264 × 10-6 Li and have δ7 Li values of -0.6 ‰ and -0.4‰.One sample of biotite in two-mica granite contains 7350 × 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, we 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.关键词
地球化学/锂同位素/伟晶岩/锂多金属矿床/四川甲基卡Key words
geochemistry/ lithium isotope/ pegmatite/ lithium polymetallic deposit/ Jiajika in Sichuan分类
天文与地球科学引用本文复制引用
苏嫒娜,田世洪,侯增谦,李建康,李真真,侯可军,李延河,胡文洁,杨竹森..锂同位素及其在四川甲基卡伟晶岩型锂多金属矿床研究中的应用[J].现代地质,2011,25(2):236-242,7.基金项目
国家自然科学面上基金项目(40973013) （40973013）
国土资源部公益性行业科研专项(201011027) （201011027）
中国地质调查局国土资源大调查项目(1212011120298,12120108160) （1212011120298,12120108160）
中央级公益性科研院所基本科研业务费专项资金项目(K0802) （K0802）
中国地质科学院实验室基金项目(2009-SYS-06). （2009-SYS-06）
