Abstract
A comparative study of meteoritic olivine in bulk samples of Farmington L5 and Tsarev L5 ordinary chondrites and extracted from Omolon and Seymchan the main-group pallasites was performed using Mössbauer spectroscopy with a high velocity resolution. Mössbauer spectra for each specimen were measured at 295 and 90 K. Mössbauer spectral components related to the 57Fe in crystallographically non-equivalent sites M1 and M2 in olivines were determined and their Mössbauer hyperfine parameters were evaluated. It was found small variations of quadrupole splitting for the 57Fe in both the M1 and M2 sites of olivines in bulk ordinary chondrites and olivines extracted from pallasites.
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Oshtrakh, M.I., Petrova, E.V., Grokhovsky, V.I. et al. Variations in quadrupole splitting of the 57Fe in the M1 and M2 sites of meteoritic olivines with different origin. Hyperfine Interact 222, 61–66 (2013). https://doi.org/10.1007/s10751-012-0694-4
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DOI: https://doi.org/10.1007/s10751-012-0694-4