Effects of the electronic spin transitions of iron in lower mantle minerals: Implications for deep mantle geophysics and geochemistry
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 …
and valence states of iron in lower mantle minerals and the associated effects of the spin …
First principles quasiharmonic thermoelasticity of mantle minerals
RM Wentzcovitch, Z Wu, P Carrier - Rev. Mineral. Geochem, 2010 - degruyter.com
Thermodynamic (Anderson 2005) and elastic properties (Musgrave 1970) of minerals
provide the fundamental information needed to analyze seismic observations and to model …
provide the fundamental information needed to analyze seismic observations and to model …
Evidence for a Fe3+-rich pyrolitic lower mantle from (Al,Fe)-bearing bridgmanite elasticity data
The chemical composition of Earth's lower mantle can be constrained by combining
seismological observations with mineral physics elasticity measurements,,. However, the …
seismological observations with mineral physics elasticity measurements,,. However, the …
Effect of chemistry on the compressibility of silicate perovskite in the lower mantle
Three single-crystals of magnesium silicate perovskite with differing chemical compositions
have been studied by means of synchrotron X-ray diffraction in diamond anvil cells with He …
have been studied by means of synchrotron X-ray diffraction in diamond anvil cells with He …
Effects of the Fe3+ spin transition on the properties of aluminous perovskite—New insights for lower-mantle seismic heterogeneities
We have measured the effects of the coupled substitution of Fe3+ and Al on the density and
compressibility of mantle silicate perovskite (Pv) up to 95GPa. X-ray emission spectroscopy …
compressibility of mantle silicate perovskite (Pv) up to 95GPa. X-ray emission spectroscopy …
Electronic spin transitions in iron-bearing MgSiO3 perovskite
S Stackhouse, JP Brodholt, GD Price - Earth and Planetary Science Letters, 2007 - Elsevier
The electronic spin state of iron in perovskites with the chemical composition Mg0. 9375Fe0.
0625SiO3, Mg0. 8750Fe0. 1250SiO3 and Mg0. 9375Fe0. 0625Si0. 9375Fe0. 0625O3, have …
0625SiO3, Mg0. 8750Fe0. 1250SiO3 and Mg0. 9375Fe0. 0625Si0. 9375Fe0. 0625O3, have …
Thermodynamic properties of (Mg,Fe2+)SiO3 perovskite at the lower-mantle pressures and temperatures: an internally consistent LSDA+U study
A Metsue, T Tsuchiya - Geophysical Journal International, 2012 - academic.oup.com
The thermodynamic properties of (Mg0. 9375Fe2+ 0.0625) SiO3 perovskite have been
investigated at the pressure and temperature conditions of the lower mantle by first …
investigated at the pressure and temperature conditions of the lower mantle by first …
Iron partitioning in pyrolitic lower mantle
The partitioning of iron between Mg-rich perovskite (Pv) and ferropericlase (Fp) was
investigated for a pyrolitic bulk composition over a wide range of simulated lower-mantle …
investigated for a pyrolitic bulk composition over a wide range of simulated lower-mantle …
High-pressure, temperature elasticity of Fe-and Al-bearing MgSiO3: Implications for the Earth's lower mantle
Fe and Al are two of the most important rock-forming elements other than Mg, Si, and O.
Their presence in the lower mantle's most abundant minerals, MgSiO 3 bridgmanite, MgSiO …
Their presence in the lower mantle's most abundant minerals, MgSiO 3 bridgmanite, MgSiO …
Elastic anisotropy of FeSiO3 end‐members of the perovskite and post‐perovskite phases
S Stackhouse, JP Brodholt… - Geophysical Research …, 2006 - Wiley Online Library
The athermal elastic constants of the perovskite and post‐perovskite polymorphs of pure
end‐member FeSiO3 were calculated from ab initio calculations. We predict that …
end‐member FeSiO3 were calculated from ab initio calculations. We predict that …