Computer Science
Scientific paper
Jan 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990e%26psl..96..247r&link_type=abstract
Earth and Planetary Science Letters (ISSN 0012-821X), vol. 96, no. 3-4, Jan. 1990, p. 247-255.
Computer Science
24
Allende Meteorite, Chondrule, Meteoritic Composition, Oxygen Isotopes, Carbonaceous Chondrites, Enstatite, Minerals, Meteorites, Allende, Oxygen, Isotopes, Chondrules, Composition, Rims, Samples, Meteorite, Cv3 Chondrites, Stony Meteorites, Depletion, Matrix, Chemistry, Comparisons, Laboratory Studies, Lithophiles, Porphyretics, Alkali, Volatiles, Refractory Material
Scientific paper
The relationship between the porphyritic chondrules and coase-grained chondrule rims of the Allende CV chondrite are examined. The oxygen isotopic compositions of seven chondrule-rim pairs and a large rimless refractory chondrule from Allende are determined. The results suggest that, to account for the O-isotopic compositions of the CV chondrules and rims, three solid precursor components are required: a high-temperature, refractory-, alkali, and (O-16)-rich component; a low-temperature, FeO-rich, refractory, and (O-16)-poor component, and an additional component to explain the composition of BO chondrules.
Clayton Robert N.
Mayeda Toshiko K.
Rubin Alan E.
Wasson John T.
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