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The oxidation state and coordination environment of antimony in silicate glasses

Miller, Laura; O'Neill, Hugh; Berry, Andrew; Glover, Chris


Antimony K-edge X-ray absorption near edge structure (XANES) spectra were recorded for Sb in glasses of five synthetic CaO-MgO-Al2O3-SiO2 (CMAS) compositions and a simplified mid-ocean ridge basalt (MORB). The glasses were quenched from melts equilibrated at 1300 °C, atmospheric pressure, and oxygen fugacities (fO2) from logfO2 = –9 to 0 (ΔQFM from −1.7 to 7.3, where ΔQFM is the fO2 in log units relative to the quartz-fayalite-magnetite buffer), and 1400 °C, 1.0 GPa and logfO2 = +4.7...[Show more]

CollectionsANU Research Publications
Date published: 2019-06-17
Type: Journal article
Source: Chemical Geology
DOI: 10.1016/j.chemgeo.2019.06.017


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