Bridgmanite
MgSiO3 (Chantel et al., 2012)
finite strain (unspecified form) · Cited · 2021
V₀
—
Unknown basis
K₀
247
GPa
Adiabatic
K′
4.500
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)ultrasonic interferometry in LVP (cited literature values)
- Sample
- Chantel et al. (2012) ultrasonic interferometry sample in LVP
Source
- Paper
- Single‐Crystal Elasticity of MgSiO3 Bridgmanite to Mid‐Lower Mantle Pressure
- Authors
- Giacomo Criniti; Alexander Kurnosov; Tiziana Boffa Ballaran; D. J. Frost
- DOI
- 10.1029/2020jb020967
- Year
- 2021
- Journal
- Journal of Geophysical Research Solid Earth
- Origin
- Cited (quoted from earlier work)
Evidence from the paper
Ultrasonic interferometry data collected by Chantel et al. (2012) in a LVP are in good agreement with this study at pressures up to the top of the lower mantle, although the values of K_S0 and K'_0, 247(4) GPa and 4.5(2) respectively, would lead to an overestimation of v_P at deeper lower mantle conditions.
Additional notes
note
Text elsewhere also mentions 'much larger K'0 (4.7) and lower G'0 (1.56)' for Chantel et al. (2012) in the context of Fe incorporation in bridgmanite