Geochemical changes at the Permian-Triassic transition in Southern Alps and adjacent area: a review

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Ressource 1Télécharger: BIB_95D705944450.P001.pdf (204.96 [Ko])
Etat: Public
Version: de l'auteur⸱e
ID Serval
serval:BIB_95D705944450
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Geochemical changes at the Permian-Triassic transition in Southern Alps and adjacent area: a review
Périodique
Annali dell'Universita degli Studi di Ferrara, Museologia Scientifica e Naturalistica
Auteur⸱e⸱s
Baud Aymon
ISSN
1824-2707
Statut éditorial
Publié
Date de publication
2005
Volume
Vol. Speciale
Pages
5-11
Langue
anglais
Résumé
Compilation of the recent literature from the Southern Alps and adjacent area confirms the geochemical variations of unusual amplitudes during the Permian-Triassic boundary interval (PTBI). A great attention has been given to the negative δ13C anomaly within the Tesero Member close to the Permian-Triassic boundary. Very detailed geochemical works have been done on the scientific Gartnerkofel core (Gk-1) and on the Slovenian sections. Major minor and rare earth elements (REE) data are reported and show a marked enrichment in alkaline metals and REE of some levels of the boundary interval. But recent studies show that the low Iridium anomalies and the Osmium and Helium isotopes anomalies lack the characteristics of a large extraterrestrial impact.
Mots-clé
boundary, isotope, Carbon, Sulfur, REE, Gartnerkofel, impact
Création de la notice
18/02/2009 18:23
Dernière modification de la notice
20/08/2019 15:58
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