Mass fractionation of nickel isotopes in metallic cosmic spheres

G. F. Herzog, G. S. hall, D. E. Brownlee

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The isotopic abundances of stable Ni isotopes were measured by inductively coupled plasma mass spectrometry (ICP/MS) in seven cosmic, metallic (Type I) spheres collected from the deep sea. Mass-dependent enrichments of the heavier isotopes range from 0.5-2.8% / AMU, values larger than those reported previously for Ni in any solid, extraterrestrial sample. This mass fractionation most likely reflects the high-temperature vaporization and loss from some spheres of over 90% of the Ni initially present.

Original languageEnglish (US)
Pages (from-to)5319-5323
Number of pages5
JournalGeochimica et Cosmochimica Acta
Issue number23
StatePublished - Dec 1994

All Science Journal Classification (ASJC) codes

  • Geochemistry and Petrology


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