Bridgmanite
MgSiO3
Birch-Murnaghan (order unspecified) · Cited · 1999
V₀
—
Unknown basis
K₀
261
GPa
Isothermal
K′
—
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 | 1 |
| SiO2 | 1 |
Formula: MgSiO3
Conditions & method
- Tref
- —
- Pref
- —
- Structure
- perovskite (unspecified)
- Method
- experiment (XRD / DAC / multianvil compression)in-situ P-V-T X-ray diffraction data (Fiquet et al. 1998, up to 57 GPa and 2668 K), as fitted/quoted in this paper
- Sample
- review/fit of experimental data by Fiquet et al. (1998)
Source
- Paper
- Equation of state of MgSiO 3 with the perovskite structure based on experimenta…
- Authors
- Surendra K. Saxena; Leonid Dubrovinsky; Faramarz Tutti; Tristan Le Bihan
- DOI
- 10.2138/am-1999-0303
- Year
- 1999
- Journal
- American Mineralogist
- Origin
- Cited (quoted from earlier work)
Evidence from the paper
Their physical data on perovskite are fitted by the following equations: alpha_T = (1.19 +/- 0.17) x 10^-5 + (1.20 +/- 0.10) x 10^-8 T (12); K_T(in GPa) = 261 - 0.027 T. (13)
Additional notes
dKT dT
-0.027 GPa/K
alpha T
alpha_T = (1.19 +/- 0.17) x 10^-5 + (1.20 +/- 0.10) x 10^-8 T
source
Fiquet et al. (1998)