The oxidation state of iron in tektite glass

Details The oxidation state of iron in tektite glass The oxidation state of iron in tektite glass

Oct 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987gecoa..51.2749f&link_type=abstract

Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 51, Oct. 1987, p. 2749-2756.

Physics

7

Glass, Iron, Oxidation, Tektites, Electron Paramagnetic Resonance, Errors, Metal Ions, Mossbauer Effect, Positive Ions, Tektites, Oxidation, Iron, Glasses, Element Ratios, Samples, Terrestrial, Techniques, Laboratory Studies, Formation, Origin, Procedure, Analysis, Spectroscopy, Resonance, Spectra, Muong Nong Tektites, Volcanism

Scientific paper

Fe3+/Fe2+ ratios in tektite glass have the potential for constraining the f02-T conditions associated with tektite melts prior to quenching. But, even discounting older analyses, values of Fe3+/Fe2+ in the literature range from zero to 0.82. The authors have analyzed five tektites from populations that have been reported to have Fe3+/Fe2+ ratios both of zero and also a range of ratios up to 0.67. The range they found of 0.02 - 0.12 is in excellent agreement with the literature values that the authors consider to be consistently most reliable and they believe that most if not all Fe3+/Fe2+ ratios in tektites fall within this range.

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