Bridgmanite
MgSiO3 (silicate perovskite)
unknown · Cited · 1990
Why this differs from similar rows?
Cites lower K_S0~245 GPa from Kudoh et al. and Yeganeh-Haeri et al.; text says results are nearly identical if K_S0' is instead raised to ~4.5 (a proposed adjustment, not fitted).
V₀
—
Unknown basis
K₀
about 245
GPa
Adiabatic
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
- —
- Pref
- —
- Structure
- perovskite (unspecified)
- Method
- literature compilation / cited valuecited experimental determinations
- Sample
- alternative literature K_S0 value (Kudoh et al.; Yeganeh-Haeri et al.)
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
other studies [Kudoh et al., 1987; Yeganeh-Haeri et al., 1989] have yielded significantly lower values of about 245 GPa. Adopting such a lower value of K_S for perovskite yields nearly identical results provided that K_S0' is increased to about 4.5 in value.
Additional notes
Kp note
authors state results are nearly identical if K_S0' is increased to about 4.5 when using this lower K_S value (a proposed adjustment, not a fitted value)