| LA-ICPMS与EPMA结合测定
铀矿物微区原位U-Pb年龄 |
| |
| 关键词:LA-ICPMS EPMA uranium minerals U-Pb isotopic age |
| 基金项目:国家重点基础研究发展计划(973计划)资助(编号: 2015CB453000) |
|
| 摘要点击次数: 1803 |
| 全文下载次数: 1901 |
| 摘要: |
| U-Pb Isotopic Dating in Situ Microanalysis of Uranium Minerals by EPMA and LA-ICPMS |
| The U-Pb isotopic dating in situ microanalysis of high uranium minerals has a very important significance in research work. This project combines EPMA and LA-ICPMS. Researchers will obtain accurate U-Pb isotopic age in situ microanalysis of high uranium minerals. Researchers will strive to establish a feasible new method in situ microanalysis on high uranium minerals, and thus greatly improve the precision. It is hard to find the standard sample of uranium in LA-ICPMS, but the ratio of 206Pb, 207Pb and 208Pb can be obtained directly. U and Pb content can be obtained by EPMA method. Then the isotope age can be yielded precisely. Researchers will solve the problem of LA-ICPMS standard sample and the EPMA defect of failing to deduce ordinary lead. Therefore the mineralization ages of some uranium deposits can be obtained by directly analyzing the high uranium minerals. The important applications and broad prospects of this new approach can be used not only in the study of uranium deposits dating but also in other geological bodies with high uranium. |
| YE Li-juan,XIAO Zhi-bin,TU Jia-run,GENG Jian-zhen,ZHANG Jian,XU Ya-wen,GUO Hu,CUI Yu-rong,ZHANG Yong-qing.2019.U-Pb Isotopic Dating in Situ Microanalysis of Uranium Minerals by EPMA and LA-ICPMS[J].Acta Geoscientica Sinica,40(3):479-482. |
| 查看全文 查看/发表评论 下载PDF阅读器 |