| 湖南芙蓉锡矿床中萤石的Sr－Nd同位素研究 |
| |
| 关键词:fluorite Sr-Nd isotopes Furong tin deposit Qitianling granite |
| 基金项目:国家基金委优创新群体基金（编号：4022130)资助 |
|
| 摘要点击次数: 3964 |
| 全文下载次数: 2575 |
| 摘要: |
| Sr－Nd Isotopic Geochemistry of Fluorites from the Furong Tin Deposit in Hunan Province |
| The Furong ore deposit,a newly discovered superlarge tin deposit, is located in Qitianling granite in Hunan Province. In this study, Sr and Nd isotopic compositions of fluorites coexisting with cassiterite and sulfides from the ore veins were analyzed. Fluorites from different veins have different 87Sr/86Sr values, varying from 0.70770 to 0.71484. This suggests that the initial 87Sr/86Sr values of ore-forming fluids are not homogenous. Sm-Nd isotopic systematics of fluorites don't yield isochron ages. The calculated ENd（t）values of fluorites vary from -6.6 to -9.8. Sr-Nd isotopic compositions of fluorites are different from those of Qitianling granite, implying that most Sr and Nd of ore-forming fluids came from the strata. |
| ZHAO Kuidong,JIANG Shaoyong,JIANG Yaohui,LING Hongfei.2005.Sr－Nd Isotopic Geochemistry of Fluorites from the Furong Tin Deposit in Hunan Province[J].Acta Geoscientica Sinica,26(z1):171-173. |
| 查看全文 查看/发表评论 下载PDF阅读器 |