We have critically reviewed and discussed currently available information regarding the spin
and valence states of iron in lower mantle minerals and the associated effects of the spin …

The stability of (Mg, Fe) SiO3 perovskite in the deep lower mantle has long been uncertain.
Recently, a phase transition from perovskite to postperovskite was discovered through a …

We complete the development and description of a thermodynamic method for the
computation of phase equilibria and physical properties of multiphase mantle assemblages …

Early in terrestrial planet evolution energetic impact, radiodecay, and core formation may
have created one or more whole or partial silicate mantle magma oceans. The time to …

Recent studies have indicated that a significant amount of iron in MgSiO3 perovskite (Pv) is
Fe3+ (Fe3+/ΣFe= 10–60%) due to crystal chemistry effects at high pressure (P) and that …

The high-pressure Pbnm-perovskite polymorph of MgSiO 3, ie, bridgmanite (Bm), plays a
crucial role in the Earth's lower mantle. It is likely responsible for∼ 75 vol.% of this region …

Ferromagnesian silicates are the dominant constituents of the Earth's mantle, which
comprise more than 80% of our planet by volume. To interpret the low shear-velocity …

Context. The discovery of low density exoplanets in the super-Earth mass regime suggests
that ocean planets could be abundant in the galaxy. Understanding the chemical …

In order to investigate the effect of Fe on the equation of state (EOS), the volume of the
perovskite (Pv) phases,(Mg1− xFex) SiO3, with different Fe contents (x= 0, 0.09, 0.15), has …

To address the effects of lattice anharmonicity across the perovskite to postperovskite
transition in MgSi O 3, we conduct calculations using the phonon quasiparticle (PHQ) …