SR isotopic fractionation in Ca-Al inclusions from the Allende meteorite

Details SR isotopic fractionation in Ca-Al inclusions from the Allende meteorite SR isotopic fractionation in Ca-Al inclusions from the Allende meteorite

Jan 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980natur.283..438p&link_type=abstract

Nature, vol. 283, Jan. 31, 1980, p. 438-441. Research supported by the Natural Environment Research Council.

Computer Science

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Carbonaceous Chondrites, Fractionation, Isotope Separation, Isotopic Enrichment, Meteoritic Composition, Strontium Isotopes, Aluminum, Calcium, Inclusions, Mass Spectroscopy, Solar System, Meteorites, Allende Meteorite, Isotopes, Fractionation, Inclusions, Calcium/Aluminum, Strontium, Composition, Comparisons, Origin, Anomalies, Techniques, Procedure, Data, Samples, Meteorite, Models, Rubidium/Strontium, Mass Spectrometers, Terrestrial, Matrix, Nucleosynthesis, Enrichment, Vaporization

Scientific paper

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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