Bridgmanite
MgSiO3 (Fe-free)
unknown · Cited · 2015
V₀
—
Unknown basis
K₀
252
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
- 300 K
- Pref
- —
- Structure
- orthorhombic perovskite (Pbnm/Pnma)
- Method
- experiment (XRD / DAC / multianvil compression)X-ray diffraction
- Sample
- Fe-free bridgmanite, Lundin et al. [2008]
Source
- Paper
- The thermal equation of state of (Mg, Fe)SiO3bridgmanite (perovskite) and impli…
- Authors
- Aaron S. Wolf; Jennifer M. Jackson; Przemeslaw K. Dera; Vitali B. Prakapenka
- DOI
- 10.1002/2015jb012108
- Year
- 2015
- Journal
- Journal of Geophysical Research Solid Earth
- Origin
- Cited (quoted from earlier work)
Evidence from the paper
Previous X-ray diffraction studies of Fe-free bridgmanite have typically reported a range of isothermal bulk moduli that have smaller values than reported here, including 252 ± 5 GPa from Lundin et al. [2008] ... All of these studies, however, fixed the value of V0 to a measured volume.
Additional notes
V0 treatment
fixed to a measured volume (numeric value not given in this text)