Computer Science
Scientific paper
Oct 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989gecoa..53.2747k&link_type=abstract
Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 53, Oct. 1989, p. 2747-2767.
Computer Science
95
Chondrites, Cosmochemistry, Meteoritic Composition, Classifications, Neutron Activation Analysis, Petrography, Meteorites, Ordinary Chondrites, Compositions, Fractionation, Petrography, Samples, Meteorite, Classification, Lithophiles, Laboratory Studies, Inaa, Concentrations, Neutron Activation Analysis, H Chondrites, L Chondrites, Ll Chondrites, Olivine, Kamacite, Catalog, Siderophiles, Equilibration, Abundance, Procedure, Grains, Xenoliths, Geochemistry, Taxonomy, Comparisons, Parent Bodies, Nebula, Miner
Scientific paper
Replicate neuron-activation analysis was used to determine the concentrations of 26 elements in 66 ordinary chondrites. It is found that the Co/Ni ratio decreases by about 5 percent through the H-L-LL sequence and that Na and Mn abundances are about 7 percent lower in H than L and LL. The compositions of petrographic types are discussed as well as implications for accretion.
Kallemeyn Gregory W.
Rubin Alan E.
Wang Dongming
Wasson John T.
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