(Search for iridium at the Permian-Triassic boundary at the Meishan section, Changxing, China).,Recherche de l'iridium a la limite Permien-Trias du site de Meishan, Changhsing (Republique populaire de Chine).
Détails
Etat: Public
Version: Final published version
Licence: Non spécifiée
ID Serval
serval:BIB_5D4DCD9B350A
Type
Article: article d'un périodique ou d'un magazine.
Sous-type
Etude de cas (case report): rapporte une observation et la commente brièvement.
Collection
Publications
Institution
Titre
(Search for iridium at the Permian-Triassic boundary at the Meishan section, Changxing, China).,Recherche de l'iridium a la limite Permien-Trias du site de Meishan, Changhsing (Republique populaire de Chine).
Périodique
Comptes Rendus - Academie des Sciences, Serie II
Statut éditorial
Publié
Date de publication
1988
Volume
307
Pages
261-267
Langue
français
Résumé
The presence of siderophile-enriched material at the Cretaceous-Tertiary boundary suggests
that the major extinctions of living species could result from cosmic catastrophes. The flnding
of the same kind of material at the Permian-Triassic boundary would be important to conflrm the
influence of cosmic phenomena on extinctions. The study of the Meishan section, in China, does not
provide any support to this view. Iridium, the best tracer of cosmic material, has not been detected
in any of the 18 samples collected around the boundary. A relation between the Permian-Triassic
extinction and a cosmic collision therefore remains hypothetical.
that the major extinctions of living species could result from cosmic catastrophes. The flnding
of the same kind of material at the Permian-Triassic boundary would be important to conflrm the
influence of cosmic phenomena on extinctions. The study of the Meishan section, in China, does not
provide any support to this view. Iridium, the best tracer of cosmic material, has not been detected
in any of the 18 samples collected around the boundary. A relation between the Permian-Triassic
extinction and a cosmic collision therefore remains hypothetical.
Mots-clé
End-Permian, Extinction, Meishan
Création de la notice
26/06/2022 15:08
Dernière modification de la notice
21/07/2022 7:10
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