Advertisement

The Post-Ilmenite Phases of Silicates, Germanates, and Titanates: A Review

  • E. Ito
  • Y. Matsui

Abstract

The most significant findings in the recent high-pressure phase equilibrium studies relevant to the constitution of the deep mantle are believed to be the stable existence of MgSiO3 ilmenite [1,2] and MgSiO3 orthorhombic perovskite [2–5]. It also has been reported that the pyrope garnet transforms to the ilmenite structure which further converts to the orthorhombic perovskite at still higher pressures [6]. Therefore it is possible that the silicate perovskite is the major constituent in the lower mantle, and that the ilmenite phase is of importance in the lower-half of the transition zone.

Keywords

Earth Planet Axial Ratio Lower Mantle Tolerance Factor Oxide Mixture 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    N. Kawai, M. Tachimori, and E. Ito, Proc. Japan Acad. 50, 378 (1974).Google Scholar
  2. 2.
    L. Liu, Earth Planet. Sci. Lett. 31, 200 (1976).Google Scholar
  3. 3.
    L. Liu, Geophys. Res. Lett. 2, 417 (1975).Google Scholar
  4. 4.
    E. Ito, Geophys. Res. Lett. 4, 72 (1977).Google Scholar
  5. 5.
    E. Ito and Y. Matusi, Earth Planet. Sci. Lett. 38, 443 (1978).Google Scholar
  6. 6.
    L. Liu, Science 195, 990 (1977).CrossRefGoogle Scholar
  7. 7.
    L. Liu, Earth Planet. Sci. Lett. 35, 161 (1977).Google Scholar
  8. 8.
    N. Kawai and S. Endo, Rev. Sci. Instr. 4, 425 (1970).Google Scholar
  9. 9.
    E. Ito, T. Matsumoto, and N. Kawai, Phys. Earth Planet. Inter. 8, 241 (1974).Google Scholar
  10. 10.
    F. P. Bundy, Rev. Sci. Instr. 46, 1318 (1975).CrossRefGoogle Scholar
  11. 11.
    L. Ming and W. A. Bassett, Earth Planet. Sci. Lett. 27, 85 (1975).Google Scholar
  12. 12.
    E. Ito and Y. Matsui, submitted to Phys. Chem. Minerals.Google Scholar
  13. 13.
    L. Liu, Earth Planet. Sci. Lett. 31, 393 (1976).CrossRefGoogle Scholar
  14. 14.
    R. G. McQueen, J. C. Jamieson, and S. P. Marsh, Science 155, 1401 (1967).CrossRefGoogle Scholar
  15. 15.
    L. Liu, Phys. Earth Planet. Inter. 10, 167 (1975).Google Scholar
  16. 16.
    M. Akaogi and S. Akimoto, unpublished data.Google Scholar
  17. 17.
    Y. Syono, S. Akimoto, Y. Ishikawa, and Y. Endoh, J. Phys. Chem. Solids 30, 1665 (1969).CrossRefGoogle Scholar
  18. 18.
    L. Liu, in High-Pressure Research: Application in Geophysics, M. H. Manghnani and S. Akimoto, eds., Academic Press, New York (1977), p. 245.CrossRefGoogle Scholar
  19. 19.
    J. Liebertz and C. J. M. Rooymans, Z. phys. chm. neue Folge 44, 242 (1965).CrossRefGoogle Scholar
  20. 20.
    E. Ito and Y. Matsui, Phys. Earth Planet. Inter. 9, 344 (1974).Google Scholar
  21. 21.
    R. D. Shannon and C. T. Prewitt, Acta Cryst. B25, 925 (1969).CrossRefGoogle Scholar
  22. 22.
    V. M. Goldschmidt, Naturwissenschaften 14, 477 (1926).CrossRefGoogle Scholar
  23. 23.
    A. F. Reid and A. E. Ringwood, J. Geophys. Res. 80, 3363 (1975).CrossRefGoogle Scholar
  24. 24.
    E. Ito and Y. Matsui, in High-Pressure Research: Application in Geophysics, M. H. Manghnani and S. Akimoto, eds., Academic Press, New York (1977), p. 193.CrossRefGoogle Scholar
  25. 25.
    E. Ito, Phys. Earth Planet. Inter. 10, 88 (1975).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1979

Authors and Affiliations

  • E. Ito
    • 1
  • Y. Matsui
    • 1
  1. 1.Okayama UniversityMisasa, Tottori-kenJapan

Personalised recommendations