Titre du document

The time interval between nucleosynthesis and formation of the earth

Lien vers le document
Nom du Corpus

AstroConcepts

Auteur(s)
  • P.K. Kuroda
Affiliation(s)
  • Department of Chemistry, University of Arkansas, FayettevilleU.S.A.
Résumé

The differences (?i) in the abundance ratios of the stable xenon isotopes in meteorites and in the earth's atmosphere indicate that the latter contains an excess of fissiogenic xenon. It is postulated that the “extinct” transuranium elements, such as Pu244 and Cm247, played important roles in the production of the fissiogenic xenon in the earth's atmosphere. The time interval (?) between the nucleosynthesis and the formation of the earth has been calculated from the values of ?i. If it is assumed that the contribution from the Cm247 spontaneous fission and the U235 neutron-induced fission was negligible, a value of ? = 4.8 × 108 years is obtained for the single event model and a value of ? = 0.52 × 108 years for the continuous synthesis model.

Langue(s) du document
Anglais
Année de publication
1961
Revue

Geochimica et Cosmochimica Acta

Éditeur
Elsevier
Type de publication
journal
Type de document
research-article
Présence de XML structuré
Non
Version de PDF
1.2
Score de qualité du texte
6.533
Nom du concept
  • Nucleosynthesis
Catégories Science-Metrix
  • 1 - natural sciences ; 2 - earth & environmental sciences ; 3 - geochemistry & geophysics
Catégories Inist
  • 1 - sciences appliquees, technologies et medecines ; 2 - sciences biologiques et medicales ; 3 - sciences biologiques fondamentales et appliquees. psychologie ; 4 - biophysique des tissus, organes et organismes
Catégories Scopus
  • 1 - Physical Sciences ; 2 - Earth and Planetary Sciences ; 3 - Geochemistry and Petrology
Catégories WoS
  • 1 - science ; 2 - geochemistry & geophysics
Identifiant ISTEX
B3139F3CF561B17E53CC521F37171AE3F54F6F91
ark:/67375/6H6-Q3KKGLFK-P
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