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Investigation of the Meteorite “Chelyabinsk” by Means of the Positron Annihilation Lifetime and Transmission Mössbauer Spectroscopies

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Abstract

Bulk of the main part of the Chelyabinsk meteorite (ordinary chondrite, LL5) for the presence of nanometer pores therein is investigated by means of the positron annihilation lifetime spectroscopy (PALS). In addition, its phase composition is studied with a help of the transmission Mossbauer spectroscopy (TMS). These results are refined by means of the powder X-ray diffraction (XRD). The obtained data demonstrate an absence of the nanometer pores in the meteorite. TMS data show that the meteorite consists of mineral phases (olivine and pyroxene), which are rather typical for the ordinary chondrites. Iron is present in sulfide and nickel forms. Possible applications of nuclear-physics methods for analysis of an origin of meteorites and evolution of the Solar system are discussed.

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Acknowledgment

Experimental part of this research was performed using facilities of the center KAMIKS (http://kamiks.itep.ru/) of the NRC “Kurchatov Insutute”—ITEP.

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Authors and Affiliations

  1. Alikhanov Institute for Theoretical and Experimental Physics of National Research Center “Kurchatov Institute,”, Moscow, 117218, Russia

    A. V. Bokov, S. V. Stepanov, V. M. Byakov & M. A. Konnychev

  2. Moscow State University, Moscow, 119992, Russia

    A. V. Bokov, S. V. Stepanov, V. M. Byakov & Y. D. Perfiliev

  3. Vernadsky Institute of Geochemistry and Analytical Chemistry of Russian Academy of Sciences, Moscow, 119334, Russia

    S. A. Voropaev

Authors
  1. A. V. Bokov
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  2. S. V. Stepanov
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  3. V. M. Byakov
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  4. M. A. Konnychev
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  5. Y. D. Perfiliev
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  6. S. A. Voropaev
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Corresponding author

Correspondence to A. V. Bokov.

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The authors declare that they have no conflicts of interest.

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Russian Text © The Author(s), 2018, published in Yadernaya Fizika i Inzhiniring, 2018, Vol. 9, No. 5, pp. 481–487.

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Bokov, A.V., Stepanov, S.V., Byakov, V.M. et al. Investigation of the Meteorite “Chelyabinsk” by Means of the Positron Annihilation Lifetime and Transmission Mössbauer Spectroscopies. Phys. Atom. Nuclei 82, 1552–1557 (2019). https://doi.org/10.1134/S1063778819120020

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  • DOI: https://doi.org/10.1134/S1063778819120020

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