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Chemical composition of magnetic spherules collected from deep sea sediment

  • Geochemistry and Cosmochemistry
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Abstract

Chemical composition of 15 magnetic spherules collected from deep sea sediment was determined by instrumental neutron activation analysis (INAA) under two different irradiation conditions using the Kyoto University Reactor (KUR). Based on their chemical composition, nine spherules were judged to be of extraterrestrial origin. The differences in the chemical composition of the nine spherules are discussed in terms of condensation temperatures for the elements. Comparing the detection limits derived from INAA under two different irradiation conditions, the sensitivity for INAA using KUR is discussed.

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Authors and Affiliations

  1. Research Reactor Institute, Kyoto University, Kumatori-cho, Sennan-gun, Osaka, 590-0494, Japan

    S. Sekimoto, K. Takamiya & S. Shibata

  2. College of Humanities and Sciences, Nihon University, Sakurajosui, Setagaya-ku, Tokyo, 156-8550, Japan

    T. Kobayashi

  3. Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, Hachioji, Tokyo, 192-0397, Japan

    M. Ebihara

Authors
  1. S. Sekimoto
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  2. T. Kobayashi
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  3. K. Takamiya
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  4. M. Ebihara
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  5. S. Shibata
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Correspondence to S. Sekimoto.

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Sekimoto, S., Kobayashi, T., Takamiya, K. et al. Chemical composition of magnetic spherules collected from deep sea sediment. J Radioanal Nucl Chem 278, 319–322 (2008). https://doi.org/10.1007/s10967-008-9602-4

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  • DOI: https://doi.org/10.1007/s10967-008-9602-4

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