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Phase Transitions in the Earth's Interior

Graduate · Historical course

Spring 2005

Topics

  • Overview on the Transition Zone
  • Olivine-wadsleyite
  • Implications of the Olivine-wadsleyite Transition
  • Post-spinel Transition
  • Variability in Post-spinel Transition
  • Implications of the Post-spinel Transition
  • Implications of the Post-spinel Transition (cont.)
  • Mid-transition Zone Boundary
  • Relations among Different Phase Transitions and Post-stishovite
  • Post-perovskite
  • D" Discontinuity
  • D" Anisotropy and the Post-perovskite Transition and Spin Transition

Readings

  • Fei, Y., and C. M. Bertka. “Phase transitions in the Earth’s mantle and mantle mineralogy.” Geochemical Society 6 (1999): 189-207.
    Listed reading
  • Helffrich, G. R. “Topography of the transition zone seismic discontinuities.” Reviews in Geophysics 38 (2000): 141-158.
    Listed reading
  • Irifune, T., and M. Isshiki. “Iron partitioning in a pyrolite mantle and the nature of the 410-km seismic discontinuity.” Nature 392 (1998): 702-705.
    Listed reading
  • Wood, B. J. “The effect of H2O on the 410-kilometer seismic discontinuity.” Science 268 (1995): 74-76.
    Listed reading
  • Smyth, J. R., and D. J. Frost. “The effect of water on the 410-km discontinuity: An experimental study.” Geophysical Research Letter 29, 10.1029/2001GL014418 (2002).
    Listed reading
  • Gaherty, J. B., et al. “Testing plausible upper-mantle compositions using fine-scale models of the 410-km discontinuity.” Geophysical Research Letter 26 (1999): 1641-1644.
    Listed reading
  • Duffy, T. S., et al. “Elasticity of forsterite to 16 GPa and the composition of the upper mantle.” Nature 378 (1996): 170-173.
    Listed reading
  • Lebedev, S., et al. “Seismic evidence for olivine phase changes at the 410- and 660-kilometer discontinuities.” Science 296 (2002): 1300-1302.
    Listed reading
  • Shim, S. -H., et al. “The post-spinel transformation in Mg2SiO4 and its relation to the 660-km seismic discontinuity.” Nature 411 (2001): 571-574.
    Listed reading
  • Irifune, T., et al. “The postspinel phase boundary in Mg2SiO4 determined by in situ X-ray diffraction.” Science 279 (1998): 1698-1700.
    Listed reading
  • Katsura, T., et al. “Post-spinel transition in Mg2SiO4 determined by high P-T in situ X-ray diffractometry.” Physics of the Earth and Planetary Interions 136 (2003): 11-24.
    Listed reading
  • Higo, Y., et al. “Effect of water on the spinel-postspinel transformation in Mg2SiO4.” Geophysical Research Letter 28 (2001): 3505-3508.
    Listed reading
  • Wood, B. J., and D. C. Ruby. “The effect of alumina on phase transformations at the 660-kilometer discontinuity from Fe-Mg partitioning experiments.” Science 273 (1996): 1522-1524.
    Listed reading
  • Shearer, P. M., and M. P. Flanagan. “Seismic velocity and density jumps across the 410- and 660-kilometer discontinuities.” Science 285 (1999): 1545-1548.
    Listed reading
  • Tackley, P. J., et al. “Effects of an endothermic phase transition at 670 km depth in a spherical model of convection in the Earth’s mantle.” Nature 361 (1993): 699-704.
    Listed reading
  • Christensen, U., and D. Yuen. “The interaction of a subducting lithospheric slab with a chemical or phase boundary.” Journal of Geophysical Research 89 (1984): 4389-4402.
    Listed reading
  • Deuss, and J. Woodhouse. “Seismic observations of splitting of the mid-transition zone discontinuity in Earth’s mantle.” Science 294 (2001): 354-357.
    Listed reading
  • Shim, S. -H., et al. “Tetragonal structure of CaSiO3 perovskite above 20 GPa.” Geophysical Research Letter 29 (2002): 2166.
    Listed reading
  • Weidner, D. J., and Y. Wang. “Phase transformations: Implications for mantle structure. In Earth’s deep interior: mineral physics and tomography from the atomic to the global scale.” Geophysical Monograph 117 (2000): 215.
    Listed reading
  • Shieh, S. R., et al. “Strength and elasticity of SiO2 across the stishovite-CaCl2-type structural phase boundary.” Physical Review Letters 89 (2002): 255507.
    Listed reading
  • Murakami, M., et al. “Post-perovskite phase transition and mineral chemistry in the pyrolitic lowermost mantle.” Geophysical Research Letter 32, no. 3, CiteID L03304 (2005).
    Listed reading
  • Mao, W. L., et al. “Ferromagnesian postperovskite silicates in the D’ layer of the Earth.” Proceedings of the National Academy of Sciences 101 (2004): 15867-15869.
    Listed reading
  • Sidorin, et al. “Evidence for a ubiquitous seismic discontinuity at the base of the mantle.” Science 286 (1999): 1326-1331.
    Listed reading
  • Wysession, et al. “The D’ discontinuity and its implications.” In The Core-mantle Boundary Region . Edited by M. Gurnis, et al. Washington, DC: American Geophysical Union, 1998.
    Listed reading
  • Stackhouse, S., et al. “The effect of temperature on the seismic anisotropy of the perovskite and post-perovskite polymorphs of MgSiO3.” Earth and Planetary Science Letters 230 (2005): 1-10.
    Listed reading
  • Badro, J., et al. “Electronic transitions in perovskite: possible nonconvecting layers in the lower mantle.” Science 305 (2004): 383-386.
    Listed reading
Sources