Abstract
57Fe Mössbauer spectroscopy was used as an analytical tool in the investigation of iron containing compounds of two meteorites (Rumanová and Košice) out of total of six which had fallen on Slovak territory. In the magnetic fraction of the iron bearing compounds in the Rumanová meteorite, maghemite, troilite and Fe-Ni alloy were identified. In the non-magnetic fraction silicate phases were found, such as olivine and pyroxene. The paramagnetic component containing Fe3 + ions corresponds probably to small superparamagnetic particles. The Košice meteorite was found near the town of Košice in February 2010. Its magnetic fraction consists of a Fe-Ni alloy with the Mössbauer parameters of the magnetic field corresponding to kamacite α-Fe(Ni, Co) and troilite. The non-magnetic part consists of Fe2 + phases such as olivine and pyroxene and traces of a Fe3 + phase. The main difference between these meteorites is their iron oxide content. These kinds of analyses can bring important knowledge about phases and compounds formed in extraterrestrial conditions, which have other features than their terrestrial analogues.
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International symposium on the Industrial Applications of the Mössbauer Effect (ISIAME 2012), Dalian, China, 2–7 September 2012.
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Lipka, J., Sitek, J., Dekan, J. et al. Mössbauer study of Slovak meteorites. Hyperfine Interact 218, 107–111 (2013). https://doi.org/10.1007/s10751-012-0752-y
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DOI: https://doi.org/10.1007/s10751-012-0752-y