Bridgmanite
MgSiO3
third-order Birch-Murnaghan · Original · 2009
Why this differs from similar rows?
Alternative fit where K_T0 is assumed/fixed at 253 GPa and only K'_T0 is refit from the dataset; sibling row instead lets both K_T0 and K'_T0 vary freely.
V₀
—
Unknown basis
K₀
253
GPa
Isothermal
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 (XRD / DAC / multianvil compression)in situ X-ray diffraction, multi-anvil apparatus (refit of present dataset with assumed K_T0)
- Sample
- —
Source
- Paper
- P‐V‐T relations of MgSiO3 perovskite determined by in situ X‐ray diffraction us…
- Authors
- Tomoo Katsura; Sho Yokoshi; Kazuaki Kawabe; Anton Shatskiy; Geeth Manthilake; Shuangmeng Zhai; Hiroshi Fukui; H. A. Chamathni I. Hegoda; Takashi Yoshino; Daisuke Yamazaki; Takuya Matsuzaki; Akira Yoneda; Eiji Ito; Mitsuhiro Sugita; Naotaka Tomioka; Kenji Hagiya; Akifumi Nozawa; Ken‐ichi Funakoshi
- DOI
- 10.1029/2008gl035658
- Year
- 2009
- Journal
- Geophysical Research Letters
- Origin
- Original (measured or fitted in the source paper)
Evidence from the paper
If K_T0 is assumed to be 253 GPa, the present dataset gives K'_T0 = 4.1(2).