Computer Science
Scientific paper
Sep 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986gecoa..50.1889b&link_type=abstract
Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 50, Sept. 1986, p. 1889-1909.
Computer Science
23
Chromium, Magma, Melts (Crystal Growth), Pyroxenes, Silicates, Spinel, Chemical Composition, Distribution (Property), Experiment Design, Petrography, Temperature Dependence
Scientific paper
The Cr distributions for a synthetic silicate melt equilibrated with bronzitic orthopyroxene and chromite spinel between 1334 and 1151 C over a range of oxygen fugacities between the nickel-nickel oxide and iron-wuestite buffers are studied. The occurrence, chemical composition, and structure of the orthopyroxene-silicate melt and the spinel-silicate melt are described. It is observed that the Cr content between bronzite and the melt increases with falling temperature along a given oxygen buffer and decreases with falling oxygen fugacity at a given temperature; however, the Cr content of the melt in equilibrium with spinel decreases with falling temperature and increases with lower oxygen fugacity.
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