高精度锆石U-Pb年代学10年发展:浅谈中国科学家的机遇和挑战  

One-decade development of high-precision zircon U-Pb dating:Chances and challenges for Chinese scientists

作　　者：杨江海[1] 殷鸿福[1] 

机构地区：[1]中国地质大学生物地质与环境地质国家重点实验室,湖北武汉430074

出　　处：《地学前缘》2014年第2期93-101,共9页Earth Science Frontiers

基　　金：国家自然科学基金青年科学基金项目(41302083);中央高校基本科研业务费专项资金项目(CUGL140402);生物地质与环境地质国家重点实验室自主研究课题(GKZ13Y651)

摘　　要：地质年代是现在地球科学研究的核心问题之一。近10年来,EARTHTIME计划的实施促使实验技术的发展和改进,使得地质年代学的年龄精度获得极大提高,并被广泛应用于各种地质事件和地层界线的定年研究中。文中对高精度锆石U-Pb年代学10年发展进行简要介绍,提出中国发展高精度定年研究的必要性,认为建设中国自己的高精度定年实验室不仅会改善研究人员的科研环境,提高科学水平,而且可起到对科研思维方式的规范作用,并促使中国科学家对完善U-Pb衰变体系和定年系统贡献自己的力量。Constraining geological time is a key problem in geoscience studies. Since 2003, along with the initiation of the EARTHTIME project, the lab techniques for geochronology have been greatly developed and promoted and thus the resultant age precision has been greatly improved with .wide application to dating problems of various geological events and stratigraphic boundaries. This paper provides a brief review of the improvement of high precision zircon U-Pb dating in the last decade. The great success of developing high- precision CA-TIMS zircon dating method and its application highlighted the necessity of building our own dating lab and training scientists and technicians in China. It is considered that this will provide an opportunity to improve the research environment, to raise the scientific level and to encourage new ideas. Chinese scientists should grasp this international scientific innovation and make our own contributions.

关 键 词：高精度锆石U-Pb年代学 ID-TIMS实验室建设 EARTHTIME 

分 类 号：P597.3[天文地球—地球化学]