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Kinetics of the Olivine→Spinel Transition under High Pressure and Temperature: Experimental Results and Geophysical Implications

  • C.-M. Sung

Abstract

Magnesium olivine is believed to be the dominant mineral in the upper mantle. It has been demonstrated to transform into a denser structure of the β-phase (modified spinel structure) or the γ-phase (spinel structure) under high pressure and temperature. The olivine→spinel (β- and/or γ-phase) transition in the mantle is believed to mark the major seismic and density discontinuity at approximately 400 km depth. The olivine→spinel transition in down-going slabs may play a vital role in plate dynamics [1,2].

Keywords

Heterogeneous Nucleation Differential Stress Kinetic Diagram Magnesium Olivine Plate Dynamic 
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References

  1. 1.
    C. M. Sung and R. G. Burns, Tectonophysics 31, 1 (1976).CrossRefGoogle Scholar
  2. 2.
    C. M. Sung and R. G. Burns, Earth Plant. Sci. Lett. 32, 165 (1976).CrossRefGoogle Scholar
  3. 3.
    C. M. Sung and R. G. Burns, Phys. Chem. Minerals 2, 177 ( 1978CrossRefGoogle Scholar
  4. 4.
    J. W. Cahn, Acta Met. 4, 449 (1956).CrossRefGoogle Scholar
  5. 5.
    C. M. Sung, Rev. Sci. Instrum. 47, 1343 (1976).CrossRefGoogle Scholar
  6. 6.
    C. M. Sung, C. Goetze, and H. K. Mao, Rev. Sci. Instrum. 48, 1386 (1977).CrossRefGoogle Scholar
  7. 7.
    E. Ito, Y. Matsui, K. Suito, and N. Kawai, Phys. Earth Planet Int. 8, 342 (1974).CrossRefGoogle Scholar
  8. 8.
    S. Akimoto and Y. Ida, Earth Planet. Sci. Lett. 1, 358 (1966)CrossRefGoogle Scholar
  9. 9.
    E. R. Oxburgh and D. L. Turcotte, Geol. Soc. Amer. Bull. 81, 1665 (1970).CrossRefGoogle Scholar
  10. 10.
    D. L. Turcotte and G. Schubert, J. Geophys. 78, 5876 (1973).CrossRefGoogle Scholar
  11. 11.
    D. P. McKenzie, Tectonophysics 10, 357 (1970).CrossRefGoogle Scholar
  12. 12.
    D. T. Griggs, in The Nature of the Solid Earth, E. C. Robertson, ed., McGraw-Hill Book CompanyGoogle Scholar
  13. 13.
    M. N. Koksóz, J. W. Minear, and B. R. Julian, J. Geophys. Res. 76, 1113 (1971).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1979

Authors and Affiliations

  • C.-M. Sung
    • 1
    • 2
  1. 1.Massachusetts Institute of TechnologyCambridgeUSA
  2. 2.General Electric CompanyWorthingtonUSA

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