Chinese Journal of Magnetic Resonance ›› 1992, Vol. 9 ›› Issue (4): 321-328.

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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 Published:1992-12-05 Online:2018-01-20

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