Mass fractionation of nickel isotopes in metallic cosmic spheres

Details Mass fractionation of nickel isotopes in metallic cosmic spheres Mass fractionation of nickel isotopes in metallic cosmic spheres

Dec 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994gecoa..58.5319h&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 58, Issue 23, pp.5319-5323

Physics

4

Scientific paper

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.

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