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D/H ratios of the coexisting phlogopite and richterite from mica nodules and a peridotite in South African kimberlites

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Abstract

The water content and D/H ratio of pairs of phlogopite and richterite in kimberlite samples were measured. The water contents of both minerals were lower than the formula content. On the basis of D/H ratios of the pair, phlogopite and richterite can not be regarded as a simple equilibrium product with respect to hydrogen isotope exchange. It seems impossible to estimate D/H ratio of the mantle water through D/H ratios of the hydrous silicate pairs.

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References

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Authors and Affiliations

  1. Department of Geology, Shinshu University, Matsumoto, 390, Nagano Pref., Japan

    Yoshimasu Kuroda

  2. Marine Department, Japan Meteorological Agency, Otemachi, 100, Tokyo, Japan

    Tetsuro Suzuoki

  3. Department of Chemistry, Tokyo Institute of Technology, O-okayama, Meguro-ku, 152, Tokyo, Japan

    Sadao Matsuo

  4. Institute of Mineralogy, Petrology and Economic Geology, Tohoku University, 980, Sendai, Japan

    Ken -ichiro Aoki

Authors
  1. Yoshimasu Kuroda
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  2. Tetsuro Suzuoki
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  3. Sadao Matsuo
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  4. Ken -ichiro Aoki
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Kuroda, Y., Suzuoki, T., Matsuo, S. et al. D/H ratios of the coexisting phlogopite and richterite from mica nodules and a peridotite in South African kimberlites. Contr. Mineral. and Petrol. 52, 315–318 (1975). https://doi.org/10.1007/BF00401460

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  • DOI: https://doi.org/10.1007/BF00401460

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