Nickel and chromium isotopes in Allende inclusions

Details Nickel and chromium isotopes in Allende inclusions Nickel and chromium isotopes in Allende inclusions

Oct 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988e%26psl..90..131b&link_type=abstract

Earth and Planetary Science Letters (ISSN 0012-821X), vol. 90, no. 2, Oct. 1988, p. 131-143.

Computer Science

77

Allende Meteorite, Chromium Isotopes, Inclusions, Meteoritic Composition, Nickel Isotopes, Anomalies, Mass Spectroscopy, Nuclear Fusion

Scientific paper

High-precision nickel and chromium isotopic measurements were carried out on nine Allende inclusions. It is found that Ni-62, Ni-64, excesses are present in at least three of the samples. The results suggest that the most likely mechanism for the anomalies is a neutron-rich statistical equilibrium process. An indication of elevated Ni-60 is found in almost every inclusion measured. This effect is thought to be related to the decay of now extinct Fe-60. An upper limit of 1.6 X 10 to the -6th is calculated for the Fe-60/Fe-56 ratio at the time these Allende inclusions crystallized.

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