16
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: not found
      • Article: not found

      The Redox State of Earth's Mantle

      ,
      Annual Review of Earth and Planetary Sciences
      Annual Reviews

      Read this article at

      ScienceOpenPublisher
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Related collections

          Most cited references103

          • Record: found
          • Abstract: not found
          • Article: not found

          Global correlations of ocean ridge basalt chemistry with axial depth and crustal thickness

            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            Evidence for deep mantle circulation from global tomography

              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              Post-perovskite phase transition in MgSiO3.

              In situ x-ray diffraction measurements of MgSiO3 were performed at high pressure and temperature similar to the conditions at Earth's core-mantle boundary. Results demonstrate that MgSiO3 perovskite transforms to a new high-pressure form with stacked SiO6-octahedral sheet structure above 125 gigapascals and 2500 kelvin (2700-kilometer depth near the base of the mantle) with an increase in density of 1.0 to 1.2%. The origin of the D" seismic discontinuity may be attributed to this post-perovskite phase transition. The new phase may have large elastic anisotropy and develop preferred orientation with platy crystal shape in the shear flow that can cause strong seismic anisotropy below the D" discontinuity.
                Bookmark

                Author and article information

                Journal
                Annual Review of Earth and Planetary Sciences
                Annu. Rev. Earth Planet. Sci.
                Annual Reviews
                0084-6597
                1545-4495
                May 2008
                May 2008
                : 36
                : 1
                : 389-420
                Article
                10.1146/annurev.earth.36.031207.124322
                63c28f8f-e02f-4ad4-81c9-3aa806a0ff0c
                © 2008
                History

                Comments

                Comment on this article