A Mössbauer effect study of Fe-site occupancy in Australasian tektites |
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| Authors: | RA Dunlap ADE Sibley |
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| Institution: | a Department of Physics and Atmospheric Science, Dalhousie University, Halifax, NS, Canada B3H 3J5
b Institute for Research in Materials, Dalhousie University, Halifax, NS, Canada B3H 3J5 |
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| Abstract: | A number of different splash-form Australasian tektites and one Muong Nong tektite from Laos have been investigated by room temperature 57Fe Mössbauer effect spectroscopy. Multiple spectra of thailandite samples have been obtained in order to establish uncertainties in fitted parameters. Results indicate that most of the samples investigated have Fe3+/Fe2+ ratios that are close to zero. The Muong Nong tektite shows the largest Fe3+/Fe2+ ratio and this is interpreted in terms of proposed mechanisms for the formation of this class of tektite that have been presented in the literature. |
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| Keywords: | G125 M353 G180 |
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