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The effect of Cr on the solubility of Al in orthopyroxene: experiments and thermodynamic modelling

Klemme, S; O'Neill, Hugh


The partitioning of chromium and aluminium between coexisting orthopyroxene and spinel in equilibrium with forsterite in the system MgO-Al2O3-SiO2-Cr2O3 (MAS-Cr) has been experimentally determined as a function of temperature, pressure and Cr/(Cr + Al) ratio. Experiments were conducted at temperatures between 1300 and 1500 °C and at pressures from 5 to 54 kbar. Previous experimental results on the (Al, Cr)2O3 and Mg(Al, Cr)2O4 solid solutions have been combined with the present results plus...[Show more]

CollectionsANU Research Publications
Date published: 2000
Type: Journal article
Source: Contributions to Mineralogy and Petrology


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