Chemical composition of magnetic spherules collected from deep sea sediment

S. Sekimoto*, T. Kobayashi, K. Takamiya, M. Ebihara, S. Shibata

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)319-322
Number of pages4
JournalJournal of Radioanalytical and Nuclear Chemistry
Issue number2
Publication statusPublished - 2008 Nov
Externally publishedYes

ASJC Scopus subject areas

  • Analytical Chemistry
  • Nuclear Energy and Engineering
  • Radiology Nuclear Medicine and imaging
  • Pollution
  • Spectroscopy
  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis


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