首页    期刊浏览 2025年06月25日 星期三
登录注册

文章基本信息

  • 标题:Geochemical changes at the Permian–Triassic transition in Southern Alps and adjacent area: a review
  • 作者:Aymon Baud
  • 期刊名称:Museologia Scientifica e Naturalistica
  • 印刷版ISSN:1824-2707
  • 出版年度:2005
  • 卷号:Speciale
  • 页码:5-12
  • 出版社:Universitá Degli Studi di Ferrara
  • 摘要:Compilation of the recent literature from the Southern Alps and adjacent area confirms the geochemicalvariations of unusual amplitudes during the Permian-Triassic boundary interval (PTBI). A great attentionhas been given to the negative δ13C anomaly within the Tesero Member close to the Permian-Triassicboundary. Very detailed geochemical works have been done on the scientific Gartnerkofel core (Gk-1) andon the Slovenian sections. Major minor and rare earth elements (REE) data are reported and show a markedenrichment in alkaline metals and REE of some levels of the boundary interval. But recent studies show thatthe low Iridium anomalies and the Osmium and Helium isotopes anomalies lack the characteristics of a largeextraterrestrial impact.
Loading...
联系我们|关于我们|网站声明
国家哲学社会科学文献中心版权所有