EarthRef.org Reference Database (ERR)
Development and Maintenance by the EarthRef.org Database Team

Detailed Reference Information
Ohtani & Yurimoto 1996
Ohtani, E. and Yurimoto, H. (1996). Element partitioning between metallic liquid, magnesiowustite, and silicate liquid at 20 GPa and 2500°C: A secondary ion mass spectrometric study. Geophysical Research Letters 23: doi: 10.1029/96GL01469. issn: 0094-8276.

We determined the partition coefficients of 20 elements between metallic liquid, magnesiowustite, and silicate liquid at 20 GPa and 2500 ¿C. The partition coefficients of V, Cr, Mn, Co, Ni, and Cu between metallic liquid and magnesiowustite are similar to those between metallic liquid and silicate liquid. The partitioning behavior of Si, P, W, and Pb between metallic liquid and magnesiowustite show remarkable differences to that between metallic liquid and silicate liquid, reflecting incompatibility of these elements in magnesiowustite. Comparison of the present data with the previous ones implies that the metallic liquid-silicate liquid partition coefficients of Co, Ni, W, and Mo decrease whereas those of Cr and Mn increase due to the combined effect of pressure and temperature, although some other factors such as the liquid composition might play some roles on a large difference in D for Mo and W. The core and mantle concentrations for Co and Ni estimated by Allegre et al. [1995> are consistent with the metal-silicate equilibrium at lower mantle conditions, although other models such as inhomogeneous accretion are also able to explain the core-mantle concentrations. ¿ American Geophysical Union 1996

BACKGROUND DATA FILES

Abstract

Keywords
Geochemistry, Composition of the core, Geochemistry, Composition of the mantle, Mineralogy and Petrology, Experimental mineralogy and petrology, Tectonophysics, Earth's interior—composition and state
Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/
Publisher
American Geophysical Union
2000 Florida Avenue N.W.
Washington, D.C. 20009-1277
USA
1-202-462-6900
1-202-328-0566
service@agu.org
Click to clear formClick to return to previous pageClick to submit