Bridgmanite
MgSiO3
third-order Birch-Murnaghan · Cited · 1990
V₀
24.46
cm³
Molar
K₀
269
GPa
Adiabatic
K′
4
dimensionless
Volume (V₀)
| Value | Unit | Basis | Z |
|---|---|---|---|
| 24.46 | cm³ | Molar | — |
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
- 300 K
- Pref
- —
- Structure
- perovskite (unspecified)
- Method
- experiment (XRD / DAC / multianvil compression)compiled literature thermoelastic parameters (static compression)
- Sample
- Table 1, MgSiO3 pv end-member
Source
- Paper
- Constraints on lower mantle composition and temperature from density and bulk s…
- Authors
- Craig R. Bina; Paul G. Silver
- DOI
- 10.1029/gl017i008p01153
- Year
- 1990
- Journal
- Geophysical Research Letters
- Origin
- Cited (quoted from earlier work)
Evidence from the paper
Table 1. Thermoelastic parameters used in this study: MgSiO3 pv: V0 (cm^3) 24.46; K_S0 (GPa) 269.; K_S0' 4.0. 'V0, K_S0, K_S0' are at 300 K and zero pressure.' Sources cited include Jeanloz and Thompson [1983] and Knittle and Jeanloz [1987].
Additional notes
delta S
2.7 (Bukowinski and Wolf [1989])
alpha0 mean
4.0e-5 K^-1 (mean zero-pressure value between 300 and 1300 K; Knittle et al. [1986])
footnote note
V0 footnote likely Jeanloz and Thompson [1983]; K_S0 and K' footnote b = Knittle and Jeanloz [1987]