The effect of pressure and spin on the isotopic composition of ferrous iron dissolved in periclase and silicate perovskite

Details The effect of pressure and spin on the isotopic composition of ferrous iron dissolved in periclase and silicate perovskite The effect of pressure and spin on the isotopic composition of ferrous iron dissolved in periclase and silicate perovskite

2008-07-29

arxiv.org/abs/0807.4742v1

Physics

Condensed Matter

Materials Science

4 pages, 3 figures, 2 tables

Scientific paper

We perform density functional calculations of the equilibrium 57Fe/54Fe ratios for ferrous iron dissolved in periclase and MgSiO3 perovskite at the pressures and temperatures of the Earth's mantle. Pressure increases the partitioning of 57Fe into both phases by a factor of three from the Earth's surface to the core-mantle boundary. In ferropericlase, a large contribution to this increase comes from the electronic transition from high-spin to low-spin iron. Our calculations demonstrate that pressure-induced fractionation can play a major role in determining planetary iron-isotope composition.

Affiliated with

Also associated with

No associations

Rating

The effect of pressure and spin on the isotopic composition of ferrous iron dissolved in periclase and silicate perovskite does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The effect of pressure and spin on the isotopic composition of ferrous iron dissolved in periclase and silicate perovskite, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The effect of pressure and spin on the isotopic composition of ferrous iron dissolved in periclase and silicate perovskite will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-258880