The two main iron-bearing silicate phases in the mantle—ferroperovskite and ferropericlase—are expected to partition iron isotopes differently. Theoretical calculations suggest that the spin state of iron strongly influences the iron isotopic composition of ferropericlase, whereas the iron isotopic composition of ferroperovskite is almost independent of spin state.
- James R. Rustad
- Qing-Zhu Yin
