Bridgmanite
MgSiO3
third-order Birch-Murnaghan · Original · 2012
Why this differs from similar rows?
Fit combines this study's data with Li and Zhang [2005] data for better constraints; sibling row uses only this study's data alone.
V₀
—
Unknown basis
K₀
252
GPa
Adiabatic
K′
4.100
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
- 300 K
- Pref
- —
- Structure
- orthorhombic perovskite (Pbnm/Pnma)
- Method
- experiment (Brillouin / ultrasonic / elasticity)ultrasonic interferometry + in situ X-ray diffraction (combined data fit)
- Sample
- combined dataset: this study + Li and Zhang [2005]
Source
- Paper
- Acoustic velocities of pure and iron‐bearing magnesium silicate perovskite meas…
- Authors
- Julien Chantel; D. J. Frost; Catherine McCammon; Zhicheng Jing; Yanbin Wang
- DOI
- 10.1029/2012gl053075
- Year
- 2012
- Journal
- Geophysical Research Letters
- Origin
- Original (measured or fitted in the source paper)
Evidence from the paper
we can provide better constraints by fitting a combined data set from this study and Li and Zhang [2005]. Table 2: This study + Li and Zhang [2005] 252(1) 4.1(1) 175(1) 1.7(1)
Additional notes
G GPa
175(1)
Gprime
1.7(1)