Bridgmanite
(Mg0.9Fe0.1)SiO3 (Mao et al. sample at elevated T; K0/K' determination reported over 0-28 GPa)
unknown · Cited · 1996
V₀
—
Unknown basis
K₀
261
GPa
Isothermal
K′
4
dimensionless
Volume (V₀)
| Value | Unit | Basis | Z |
|---|---|---|---|
| — | — | Unknown basis | — |
Reported value and unit are preserved as extracted. Z (formula units per cell) is not stored yet, so molar ↔ ų/f.u. conversion is not applied automatically.
Composition
| Oxide | Molar |
|---|---|
| MgO | 0.9 |
| FeO | 0.1 |
| SiO2 | 1 |
Formula: (Mg0.9Fe0.1)SiO3
Conditions & method
- Tref
- 300 K
- Pref
- —
- Structure
- orthorhombic perovskite (Pbnm/Pnma)
- Method
- experiment (XRD / DAC / multianvil compression)high-pressure X-ray diffraction in externally heated diamond anvil cell (cited)
- Sample
- Mao et al. [1991]
Source
- Paper
- Thermoelastic properties of MgSiO3 perovskite determined by in situ X ray obser…
- Authors
- Nobumasa Funamori; Takehiko Yagi; Wataru Utsumi; Tadashi Kondo; Takeyuki Uchida; Miho Funamori
- DOI
- 10.1029/95jb03732
- Year
- 1996
- Journal
- Journal of Geophysical Research Atmospheres
- Origin
- Cited (quoted from earlier work)
Evidence from the paper
we adopt the values of K300,0 = 261 GPa and K'300,0 = 4 determined by Mao et al. [1991] from data obtained over a relatively wide pressure range of 0 - 28 GPa under a quasi-hydrostatic environment using neon as a pressure transmitting medium.
Additional notes
note
The perovskite studied at elevated temperatures by Mao et al. [1991] contains some iron, reported composition (Mg0.9Fe0.1)SiO3