How well do we know "Cosmic" abundances?

Details How well do we know "Cosmic" abundances? How well do we know "Cosmic" abundances?

May 1971

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1971gecoa..35..516a&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 35, Issue 5, pp.516-522

Physics

31

Scientific paper

Five lines of evidence suggest that Cl chondrites closely approximate the condensable fraction of primordial solar-system matter: continuity of isotopic and elemental abundance trends, agreement with solar and cosmic-ray abundances, fractionation patterns among chondrites, and absence of chondrules. Maximum differences between Cl abundances and true solar-system abundances are estimated as factors of 2-5 for individual elements and a factor of 1.5 or less for groups of 10 or more elements.

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