波谱学杂志 ›› 1992, Vol. 9 ›› Issue (4): 321-328.

• 研究论文 • 上一篇    下一篇

天然方解石的定代和顺磁共振研究

傅文标1, P. Mcmillam2, D. J. Miller2   

  1. 1. 上海光学精密机械研究所, 上海 201800;
    2. 新南威尔士大学, 澳大利亚
  • 收稿日期:1991-01-20 修回日期:1992-04-01 出版日期:1992-12-05 发布日期:2018-01-20

ESR RESEARCH AND DATING ON THE NATURAL CALCITE

Fu Wenbiao1, P. Mcmillan2, D. J. Miller2   

  1. 1. Shanghai Institute of Optics and Fine Mechanics, Shanghai 201800;
    2. School of Physics, University of New South Wales Australia
  • Received:1991-01-20 Revised:1992-04-01 Online:1992-12-05 Published:2018-01-20

摘要: 用ESR分析了天然方解石(CaCO3)中的杂质Mn2+离子和天然顺磁缺陷的性质。有关谱的理论计算基本和实验结果一致.解释了热处理和辐照样品出现的一些实验现象,最后提出了如何克服干扰解决含有一些杂质Mn2+离子样品的定代问题。

关键词: ESR定代, 天然缺陷, 方解石

Abstract: The properties of Mn2+ ions and the signal of the defect used in dating for natural calcite were analysed by ESR. Theoretical calculation agrees satisfactorily with experimental results on ESR spectra. Experimental phenomena in the heat treatment and the irradiation of the sample were explained. A method is proposed to overcome the interference from impurities of Mn2+ ions in the sample.

Key words: ESR dating, Natural defects, Calcite