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Geochemical Journal
Geochemical Journal An open access journal for geochemistry
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Isotopic compositions of calcium, barium, neodymium and xenon in meteorites

P. K. Kuroda
Geochemical Journal, Vol. 13, No. 3, P. 131-134, 1979

ABSTRACT

Isotopic anomalies observed in meteorites for Ca, Ba, Nd and Xe are explained as due to the alteration of the isotopic ratios by a combined effect of mass fractionation, neutron-capture and cosmic-ray irradiation processes, which took place prior to and during the period of formation of the solar system. The neutron-capture process appears to have occurred at a temperature higher than that of the earth's surface.

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