Ternary-spinel volumes in the system MgAl2O4-Fe3O4-gamma Fe8/3O4: implications for the effect of P on intrinsic fO2 measurements of mantle-xenolith spinels.

G. S. Mattioli; B. J. Wood; I. S.E. Carmichael

Ternary-spinel volumes in the system MgAl₂O₄-Fe₃O₄-gamma Fe_8/3O₄: implications for the effect of P on intrinsic fO₂ measurements of mantle-xenolith spinels.

G. S. Mattioli, B. J. Wood, I. S.E. Carmichael

Research output: Contribution to journal › Article › peer-review

Abstract

Volume-composition relations along the MgAl₂O₄-Fe₃O₄ spinel join were determined as a function of fO₂, defect concentration, and T of synthesis. The partial molar volumes of Fe₃O₄ and gamma Fe_8/3O₄ components in synthetic spinels were measured by powder XRD and a volume model for MgAl₂O₄-gamma Fe_8/3O₄ ternary spinels was derived.-J.A.Z.

Original language	English
Pages (from-to)	468-480
Number of pages	13
Journal	American Mineralogist
Volume	72
Issue number	5-6
Publication status	Published - 1987

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abstract = "Volume-composition relations along the MgAl2O4-Fe3O4 spinel join were determined as a function of fO2, defect concentration, and T of synthesis. The partial molar volumes of Fe3O4 and gamma Fe8/3O4 components in synthetic spinels were measured by powder XRD and a volume model for MgAl2O4-gamma Fe8/3O4 ternary spinels was derived.-J.A.Z.",

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AU - Wood, B. J.

AU - Carmichael, I. S.E.

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AB - Volume-composition relations along the MgAl2O4-Fe3O4 spinel join were determined as a function of fO2, defect concentration, and T of synthesis. The partial molar volumes of Fe3O4 and gamma Fe8/3O4 components in synthetic spinels were measured by powder XRD and a volume model for MgAl2O4-gamma Fe8/3O4 ternary spinels was derived.-J.A.Z.

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Ternary-spinel volumes in the system MgAl₂O₄-Fe₃O₄-gamma Fe_8/3O₄: implications for the effect of P on intrinsic fO₂ measurements of mantle-xenolith spinels.

Abstract

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