Bridgmanite

MgSiO3

modified Tait · Original · 2013

V₀

2.445

kJ kbar-1

Molar

K₀

251

GPa

Isothermal

K′

4.140

dimensionless

Volume (V₀)

Value	Unit	Basis	Z
2.445	kJ kbar-1	Molar	—

Reported value and unit are preserved as extracted. Z (formula units per cell) is not stored yet, so molar ↔ Å³/f.u. conversion is not applied automatically.

Composition

Oxide	Molar
MgO	1
SiO2	1

Formula: MgSiO3

Conditions & method

T_ref: 298 K
P_ref: 0.000 GPa
Structure: perovskite (unspecified)
Method: thermodynamic / mineral physics model
internally consistent thermodynamic dataset (THERMOCALC)
Sample: mpv end-member, THERMOCALC dataset tc-ds62 (Table 1)

Source

Paper: New Thermodynamic Models and Calculated Phase Equilibria in NCFMAS for Basic an…
Authors: T. J. B. Holland; N. F. C. Hudson; Roger Powell; B. Harte
DOI: 10.1093/petrology/egt035
Year: 2013
Journal: Journal of Petrology
Origin: Original (measured or fitted in the source paper)

Evidence from the paper

Table 1: mpv | V 2.445 | K0 2510.0 | K0' 4.14 | K0'' -0.0016; 'a0 and K0, thermal expansion and bulk modulus at 298 K; K0' and K0'', first and second pressure derivatives of bulk modulus at 298 K. Units: ... V, kJ kbar-1; ... K0, kbar.'

Additional notes

K0 second derivative

-0.0016

K0 second derivative unit

kbar-1

a0 thermal expansion

1.87e-5 K-1

note

Dataset values largely following Holland & Powell (2011); H = -1442.31 kJ, S = 62.60 J K-1