Periclase
MgO
Birch-Murnaghan (order unspecified) · Cited · 1993
V₀
—
Unknown basis
K₀
—
Isothermal
K′
4.200
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 |
Formula: MgO
Conditions & method
- Tref
- —
- Pref
- —
- Structure
- B1 rocksalt (Fm-3m)
- Method
- literature compilation / cited valueliterature values adopted for lower-mantle stability calculation
- Sample
- —
Source
- Paper
- Static compressibility of magnesite to 20 GPa: Implications for MgCO3 in the lo…
- Authors
- Simon A. T. Redfern; Bernard J. Wood; C. M. B. Henderson
- DOI
- 10.1029/93gl02507
- Year
- 1993
- Journal
- Geophysical Research Letters
- Origin
- Cited (quoted from earlier work)
Evidence from the paper
"We took K_T and thermal expansion (α) as a function of temperature for MgO from the review of Anderson et al. [1992]." ... "The pressure derivative of K_T, K_T', for MgO was taken as 4.2 [Duffy and Anderson, 1989]." ... "Volumes for MgO and MgCO3 were calculated at high pressure and 298 K using the third order Birch-Murnaghan equation of state"
Additional notes
K T source
Anderson et al. [1992] review (numeric value not stated in this paper)
Kp source
Duffy and Anderson [1989]
thermal expansion fit
α = 3.7428e-5 + 7.7249e-9 T - 4.1519e-4/T - 0.92292/T^2 (fitted 300-1800 K)
dlnα/dlnV
≈ 5.0 for MgO [Chopelas and Boehler, 1989]