极地研究 ›› 2011, Vol. 23 ›› Issue (4): 328-337.DOI: 10.3724/SP.J.1084.2011.00328

• 研究进展 • 上一篇    下一篇

陨石Cr同位素组成测试技术及其在天体化学研究中的应用

王桂琴1,王道德1,杨晶1,2   

  1. 1. 中国科学院广州地球化学研究所
    2. 中国科学院研究生院
  • 收稿日期:2011-04-22 修回日期:2011-07-24 出版日期:2011-12-30 发布日期:2011-12-30
  • 通讯作者: 王桂琴
  • 基金资助:

    中科院知识创新工程重要方向项目“地球早期演化的同位素和微量元素制约”;国家自然科学基金项目“高精度Mg同位素组成对CAIs和球粒的成因制约和在地幔岩与陨石中的对比”;中科院知识创新工程领域前沿项目“TRITON-TIMS新技术新方法开发”;国际极地年中国行动计划项目

ANALYTICAL METHODS OF CR ISOTOPES AND THEIR APPLICATIONS IN COSMOCHEMISTRY

Wang Guiqin1 , Wang Daode1 , Yang Jing1,2   

  1. 1. Guangzhou Institute of Geochemistry, Chinese Academy of Sciences
    2. Graduate University of Chinese Academy of Sciences
  • Received:2011-04-22 Revised:2011-07-24 Online:2011-12-30 Published:2011-12-30
  • Contact: Guiqin WANG
  • Supported by:

    The Pilot Project of Knowledge Innovation Program of the Chinese Academy of Sciences;Natural Science Foundation of China;Knowledge Innovation Program GIGCX-09-0301 of the Chinese Academy of Sciences

摘要:

Cr同位素在天体化学中已开始得到广泛应用,作为一个新的研究手段它在天体化学领域中主要应用于追溯太阳系早期历史演化和定年,随着分析技术的发展,使我们可以对陨石物质中更微细的Cr同位素变化进行测定,也给我们一个新的机遇去重新认识和评价Cr同位素在太阳系中的分布规律及成因模式。

关键词: Cr测定技术, 同位素异常, 陨石, 天体化学, 应用

Abstract:

Chromium isotope compositions have been widely applied in cosmochemistry field, as a new approaches to date and trace the early history of the evolution of the solar system. With the development of the analytic technique, the subtle variation of Cr isotopic compositions in extraterrestrial materials can be determined. This advantage give us a new chance to re-understand and re-evaluate the genetic model of Cr and its distribution in the solar system.

Key words: Cr isotopic anomaly, analytical method, meteorites, cosmochemistry, application