Abstract
Tektite glasses are investigated using 57Fe Mössbauer spectroscopy. Room temperature spectra analysis is performed using two complementary analytical methods based on two-dimensional distributions of both isomer shift and quadrupole splitting. No a priori correlation between the two hyperfine parameters is considered. The first method, based on a shape independent distribution, provides the justification for the Gaussian distribution shape used in the second method. No ferric iron contribution is evidenced by Mössbauer spectra analysis in these samples, although several criteria are used. Ferrous iron sites are shown to be continuously distributed between four- and five-fold co-ordinated sites.
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Received: 3 August 1998 / Revised, accepted: 15 March 1999
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Rossano, S., Balan, E., Morin, G. et al. 57Fe Mössbauer spectroscopy of tektites. Phys Chem Min 26, 530–538 (1999). https://doi.org/10.1007/s002690050216
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DOI: https://doi.org/10.1007/s002690050216