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

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Title
Geochemical changes at the Permian-Triassic transition in Southern Alps and adjacent area: a review
Journal
Annali dell'Universita degli Studi di Ferrara, Museologia Scientifica e Naturalistica
Author(s)
Baud Aymon
ISSN
1824-2707
Publication state
Published
Issued date
2005
Volume
Vol. Speciale
Pages
5-11
Language
english
Abstract
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.
Keywords
boundary, isotope, Carbon, Sulfur, REE, Gartnerkofel, impact
Create date
18/02/2009 18:23
Last modification date
20/08/2019 15:58
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