Abstract
Study of four Chelyabinsk LL5 ordinary chondrite fragments with different lithology was carried out using X-ray diffraction and Mössbauer spectroscopy with a high velocity resolution. The Fe2+ occupancies of the M1 and M2 sites in olivine, orthopyroxene, and clinopyroxene determined using X-ray diffraction and Mössbauer spectroscopy were compared. Distribution coefficients K D and the temperatures of cations equilibrium distribution T eq in the olivine and orthopyroxene were evaluated.
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Original Russian Text © A.A. Maksimova, A.V. Chukin, V.A. Semionkin, M.I. Oshtrakh, 2017, published in Izvestiya Rossiiskoi Akademii Nauk, Seriya Fizicheskaya, 2017, Vol. 81, No. 7, pp. 933–938.
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Maksimova, A.A., Chukin, A.V., Semionkin, V.A. et al. The Fe2+ occupancies in the silicates M1 and M2 sites in Chelyabinsk LL5 meteorite determined using XRD and Mössbauer spectroscopy. Bull. Russ. Acad. Sci. Phys. 81, 845–849 (2017). https://doi.org/10.3103/S1062873817070188
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DOI: https://doi.org/10.3103/S1062873817070188