| 锡石U-Pb同位素体系的封闭性及其测年的可靠性分析 |
| |
| 引用本文： | 张东亮,彭建堂,胡瑞忠,袁顺达,郑德顺.锡石U-Pb同位素体系的封闭性及其测年的可靠性分析[J].地质论评,2011,57(4):549-554. |
| |
| 作者姓名： | 张东亮 彭建堂 胡瑞忠 袁顺达 郑德顺 |
| |
| 作者单位： | 中国科学院地球化学研究所矿床地球化学国家重点实验室，贵阳，550002；中国科学院研究生院，北京，100049;中国科学院地球化学研究所矿床地球化学国家重点实验室，贵阳，550002；中南大学地球科学与信息物理学院，长沙，410083;中国科学院地球化学研究所矿床地球化学国家重点实验室，贵阳，550002；;中国地质科学院矿产资源研究所，北京，100037;河南理工大学资源环境学院，河南焦作，454000 |
| |
| 基金项目： | 本文为国家自然科学基金资助项目（编号 41073036, 40903020, 40902033）的成果 |
| |
| 摘 要： | 锡石是各种不同类型锡矿床中最重要的矿石矿物,其U-Pb/Pb-Pb同位素年代学研究对于精确厘定锡矿床的成矿时代以及进一步揭示其矿床成因等具有重要意义.本文通过计算锡石中Pb的扩散参数,从扩散动力学角度对U-Pb同位素体系的封闭性进行了研究,探讨了不同温度条件下锡石对其所含U-Pb同位素信息的保存能力.研究结果表明,锡石...
|
| 关 键 词： | 锡石 U-Pb测年 封闭性 扩散作用 |
The Closure of U Pb Isotope System in Cassiterite and Its Reliability for Dating |
| |
| ZHANG Dongliang,PENG Jiantang,HU Ruizhong,YUAN Shunda,ZHENG Deshun.The Closure of U Pb Isotope System in Cassiterite and Its Reliability for Dating[J].Geological Review,2011,57(4):549-554. |
| |
| Authors: | ZHANG Dongliang PENG Jiantang HU Ruizhong YUAN Shunda ZHENG Deshun |
| |
| Institution: | ZHANG Dongliang1,2),PENG Jiantang 1,3),HU Ruizhong1),YUAN Shunda4),ZHENG Deshun5)1) The State Key Laboratory of Ore Deposit Geochemistry,Chinese Academy of Science,Guiyang,550002,2) Graduate University of Chinese Academy of Sciences,Beijing,100049,3) School of Geosciences and Info-physics,Central South University,Changsha,410083,4) Institute of Mineral Resources,Chinese Academy of Geological Sciences,100037,5) Institute of Resources and Environment,Henan Polytechnic University,Jiaozuo,Henan,454000 |
| |
| Abstract: | As the most important ore mineral in various tin deposits,cassiterite plays an important role in direct dating of tin mineralization and revealing ore genesis through the study of its U-Pb/Pb-Pb geochronology.In this paper,the diffusion parameters of Pb in cassiterite were calculated,and the closure of U-Pb isotopic system in the term of diffusion dynamics was discussed.In addition,the retention of Pb isotope information in cassiterite under different temperatures was also discussed.The results reveal that ... |
| |
| Keywords: | cassiterite U-Pb isotopic dating closure diffusion |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《地质论评》浏览原始摘要信息 |
| 点击此处可从《地质论评》下载免费的PDF全文 |
|
