Abstract
True relative Sr isotopic compositions, determined by double spiking on Ca–Al inclusions from the Allende meteorite show up to 1.5‰ per mass unit mass fractionation relative to the Earth and bulk chondrites. All abnormal inclusions are light-isotope enriched. A lack of isotopically heavy Sr in inclusions would place constraints on the time, place and mechanism of origin of these objects.
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Patchett, P. Sr isotopic fractionation in Ca–Al inclusions from the Allende meteorite. Nature 283, 438–441 (1980). https://doi.org/10.1038/283438a0
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DOI: https://doi.org/10.1038/283438a0
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