Other
Scientific paper
Nov 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977gecoa..41.1647g&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 41, Nov. 1977, p. 1647-1664. Research supported by the Alfred P. Sloan Foundation;
Other
13
Abundance, Meteoritic Composition, Neutron Activation Analysis, Radiochemical Separation, Refractory Metals, Trace Elements, Condensation, Fractionation, Granular Materials, Inclusions, Solid Solutions
Scientific paper
Radiochemical neutron activation analytic determinations of several elements in coarse-grained inclusions of the Allende meteorite are reported. The condensation and fractionation behavior of these and other elements are described. Evidence was found for a post-accretion thermal event which redistributed some trace elements. The solar system ratio of Zr/Hf is computed on the basis of the minimum variation in the inclusion, and the percentage of high-temperature condensates in the earth and moon are calculated on the basis of the mean U content of the inclusions. The mean value of the enrichment factors of 21 refractory elements relative to C1 chondrites is provided, and the elements that did or did not condense in a solid solution of melilite are listed.
Davis Aileen M.
Ganapathy Rajesh
Grossman Lawrence
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