Noble gas anomalies and synthesis of the chemical elements

Details Noble gas anomalies and synthesis of the chemical elements Noble gas anomalies and synthesis of the chemical elements

Jun 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980metic..15..117s&link_type=abstract

Meteoritics, vol. 15, June 30, 1980, p. 117-138.

Computer Science

8

Abundance, Meteoritic Composition, Planetary Composition, Rare Gases, Isotopes, Neon Isotopes, Solar System, Rare Gases, Anomalies, Nucleosynthesis, Chemical Elements, Fusion, Fractionation, Spallation, Isotopes, Planets, Abundance, Patterns, Data, Helium, Neon, Solar Wind, Condensation, Solubility, Comparisons, Residues, Allende Meteorite, Meteorites, Composition, Supernova, Adsorption

Scientific paper

The elemental and isotopic abundances of noble gases trapped in meteorites are discussed in relation to the origin of the chemical elements and the condensation of the solar system. The abundance patterns of the two types of planetary noble gases and of solar noble gases are examined, and it is suggested that type-X planetary noble gases, which contain isotopically anomalous argon, krypton and xenon and normal helium and neon, were derived from the outer regions of a supernova, while the Y-type planetary noble gases, which consist of isotopically normal argon, krypton and xenon, were derived from its inner regions. It is argued, however, that variations in the isotopic composition of neon can be explained by mass fraction or mass fractionation plus spallation without recourse to separate nucleogenetic anomalies. It is also concluded that the differences in the abundance patterns of planetary noble gases are primarily the result of stellar fusion reactions and adsorption, rather than gas solubility.

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