Bridgmanite
MgSiO3 perovskite containing 5.1% wt Al2O3
unknown · Cited · 2007
V₀
—
Unknown basis
K₀
—
K′
3.700
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 (Brillouin / ultrasonic / elasticity)high-pressure Brillouin scattering to 45 GPa
- Sample
- polycrystalline sample (Jackson et al., ref 52)
Source
- Paper
- Indoor seismology by probing the Earth's interior by using sound velocity measu…
- Authors
- Baosheng Li; Robert C. Liebermann
- DOI
- 10.1073/pnas.0608609104
- Year
- 2007
- Journal
- Proceedings of the National Academy of Sciences
- Origin
- Cited (quoted from earlier work)
Evidence from the paper
A recent high-pressure Brillouin scattering study to 45 GPa (52) using polycrystalline sample of magnesium silicate perovskite containing 5.1% wt Al2O3 yielded KS0' 3.7 (0.3) and G0' 1.7 (0.2), which are slightly lower than the current ultrasonic results.
Additional notes
G0 prime
1.7 (0.2)
reference
Jackson JM, Zhang JZ, Bass JD (2004) Geophys Res Lett 31:L10614 (ref 52)
note
Only pressure derivatives reported; no K0 or V0 given in this paper for this sample