Vanadium, Cr, Si, and the Mg/Si Ratio of the EarthExperiments investigating the partitioning of V, Cr, and Si between metal and silicate at various pressures, temperatures, redox state, and composition demonstrate that V and Cr are always more siderophile than Si. The relatively high abundances of V and Cr in the Earth's upper mantle indicate that the high Mg/Si ratio of the Earth's upper mantle cannot be attributed to extraction of Si into the core and must be an intrinsic bulk property of the silicate Earth.
Drake, Michael J. (Arizona Univ. Tucson, AZ, United States)
Domanik, Kenneth (Arizona Univ. Tucson, AZ, United States)
Bailey, Edward (Arizona Univ. Tucson, AZ, United States)