Bridgmanite
Al- and Fe-bearing Mg-perovskite in natural KLB-1 peridotite
Birch-Murnaghan (order unspecified) · Original · 2009
V₀
164
ų
Unit cell
K₀
245
GPa
Isothermal
K′
4
dimensionless
Volume (V₀)
| Value | Unit | Basis | Z |
|---|---|---|---|
| 164 | ų | Unit cell | — |
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
Al- and Fe-bearing Mg-perovskite in natural KLB-1 peridotite
Conditions & method
- Tref
- —
- Pref
- —
- Structure
- other / unspecified
- Method
- experiment (XRD / DAC / multianvil compression)synchrotron X-ray diffraction in laser-heated diamond anvil cell (P-V-T fit)
- Sample
- KLB-1 peridotite sintered with 7 wt% gold, Table 1 column Mg-pv
Source
- Paper
- Density profile of pyrolite under the lower mantle conditions
- Authors
- A. Ricolleau; Yingwei Fei; Elizabeth Cottrell; H. C. Watson; Liwei Deng; Li Zhang; G. Fiquet; Anne‐Line Auzende; Mathieu Roskosz; G. Morard; Vitali B. Prakapenka
- DOI
- 10.1029/2008gl036759
- Year
- 2009
- Journal
- Geophysical Research Letters
- Origin
- Original (measured or fitted in the source paper)
Evidence from the paper
Table 1. Equation of State of Mg-Perovskite, Ca-Perovskite and Ferropericlase: Mg-pv V0 (Å3) 164.00 (fixed); K0,T (GPa) 245 (1); K'0,T 4 (fixed). "Fitting the P-V-T data to the high-temperature Birch-Murnaghan EoS yielded parameters in Table 1."
Additional notes
dK dT P GPa per K
-0.036 (1)
a0 1e-5 K-1
3.19 (17)
a1 1e-8 K-2
0.88 (16)
notes
EoS of Al- and Fe-bearing Mg-perovskite shows lower bulk modulus and higher thermal parameters than pure MgSiO3 perovskite; pressures from Au EoS of Fei et al. [2007a]