Other
Scientific paper
Jan 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989gecoa..53..197a&link_type=abstract
Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 53, Jan. 1989, p. 197-214.
Other
5085
Abundance, Chemical Analysis, Chondrites, Meteoritic Composition, Photosphere, Solar Corona, Energetic Particles, Isotopes, Solar Wind, Meteorites, Abundance, Samples, Meteorite, Ci Chondrites, Sun, Corona, Photosphere, Review, Elements, Fractionation, Solar System, Nuclides, Solar Wind, Charged Particles, Rare Gases, Refractory Elements, Comets, Siderophiles, Volatiles, Nucleosynthesis, Halley, Comparisons
Scientific paper
New abundance tables have been compiled for C1 chondrites and the solar photosphere and corona, based on a critical review of the literature to mid-1988. The meteorite data are generally accurate to + or - 5-10 percent. Significant discrepancies between the sun and meteorites occur only for Fe, Mn, Ge, Pb, and W; other well-determined elements agree to + or - 9 percent on the average. There is no evidence for group fractionations in C1 chondrites of cosmochemically similar elements (refractories, siderophiles, volatiles, etc.), but a selective fractionation of Fe cannot be ruled out. Abundances of odd-A nuclides between A = 65 and 209 show a generally smooth trend, with elemental abundances conforming to the slope defined by isotopic abundances. Significant irregularities occur in the Nd-Sm-Eu region, however, suggesting that the abundance curve is dependably smooth only down to about 20 percent level.
Anders Edward
Grevesse Nicolas
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