Perovskite in Earth's deep interior

K Hirose, R Sinmyo, J Hernlund - Science, 2017 - science.org
Silicate perovskite-type phases are the most abundant constituent inside our planet and are
the predominant minerals in Earth's lower mantle more than 660 kilometers below the …

A revised adiabatic temperature profile for the mantle

T Katsura - Journal of Geophysical Research: Solid Earth, 2022 - Wiley Online Library
This study reevaluates the adiabatic temperature profile of the Earth's mantle. The global
average temperature at the 410‐km discontinuity is estimated to be 1839 (38) K by …

Shear deformation of bridgmanite and magnesiowüstite aggregates at lower mantle conditions

J Girard, G Amulele, R Farla, A Mohiuddin, S Karato - Science, 2016 - science.org
Rheological properties of the lower mantle have strong influence on the dynamics and
evolution of Earth. By using the improved methods of quantitative deformation experiments …

In situ synchrotron X-ray diffraction in the laser-heated diamond anvil cell: Melting phenomena and synthesis of new materials

A Salamat, RA Fischer, R Briggs, MI McMahon… - Coordination Chemistry …, 2014 - Elsevier
The ability to produce high pressures and temperatures (P–T), and study the physical and
chemical properties of solids and melts at these conditions, is possible through the use of …

Viscosity of bridgmanite determined by in situ stress and strain measurements in uniaxial deformation experiments

N Tsujino, D Yamazaki, Y Nishihara, T Yoshino… - Science …, 2022 - science.org
To understand mantle dynamics, it is important to determine the rheological properties of
bridgmanite, the dominant mineral in Earth's mantle. Nevertheless, experimental data on the …

Melting and density of MgSiO3 determined by shock compression of bridgmanite to 1254GPa

Y Fei, CT Seagle, JP Townsend, CA McCoy… - Nature …, 2021 - nature.com
The essential data for interior and thermal evolution models of the Earth and super-Earths
are the density and melting of mantle silicate under extreme conditions. Here, we report an …

Generation of pressures over 40 GPa using Kawai-type multi-anvil press with tungsten carbide anvils

T Ishii, L Shi, R Huang, N Tsujino, D Druzhbin… - Review of Scientific …, 2016 - pubs.aip.org
Generation of pressures over 40 GPa using Kawai-type multi-anvil press with tungsten
carbide anvils | Review of Scientific Instruments | AIP Publishing Skip to Main Content …

Computational support for a pyrolitic lower mantle containing ferric iron

X Wang, T Tsuchiya, A Hase - Nature Geoscience, 2015 - nature.com
The dominant minerals in Earth's lower mantle are thought to be Fe-and Al-bearing MgSiO3
bridgmanite and (Mg, Fe) O ferropericlase. However, experimental measurements of the …

Elastic properties of MgSiO3-perovskite under lower mantle conditions and the composition of the deep Earth

Z Zhang, L Stixrude, J Brodholt - Earth and Planetary Science Letters, 2013 - Elsevier
Elastic properties of MgSiO 3-perovskite are of fundamental importance for our
understanding of the thermal and chemical state of the lower mantle. However, the elastic …

Equation of state of pure iron and Fe0. 9Ni0. 1 alloy up to 3 Mbar

T Sakai, S Takahashi, N Nishitani, I Mashino… - Physics of the Earth and …, 2014 - Elsevier
Abstract Pure iron and Fe 0.9 Ni 0.1 alloy were compressed to a pressure of 279 GPa and
272 GPa, respectively. The compression data sets were fitted using the third order Birch …