Geochemistry of the end-Permian extinction event in Austria and Italy: No evidence for an extraterrestrial component

Abstract

Research Article| December 01, 2004 Geochemistry of the end-Permian extinction event in Austria and Italy: No evidence for an extraterrestrial component Christian Koeberl; Christian Koeberl 1Department of Geological Sciences, University of Vienna, Althanstrasse 14, A-1090 Vienna, Austria Search for other works by this author on: GSW Google Scholar Kenneth A. Farley; Kenneth A. Farley 2Division of Geological and Planetary Sciences, MS 170-25, California Institute of Technology, Pasadena, California 91125, USA Search for other works by this author on: GSW Google Scholar Bernhard Peucker-Ehrenbrink; Bernhard Peucker-Ehrenbrink 3Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543-1541, USA Search for other works by this author on: GSW Google Scholar Mark A. Sephton Mark A. Sephton 4Planetary and Space Sciences Research Institute, Open University, Milton Keynes MK7 6AA, UK Search for other works by this author on: GSW Google Scholar Geology (2004) 32 (12): 1053–1056. https://doi.org/10.1130/G20907.1 Article history received: 23 Jun 2004 rev-recd: 30 Aug 2004 accepted: 30 Aug 2004 first online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Christian Koeberl, Kenneth A. Farley, Bernhard Peucker-Ehrenbrink, Mark A. Sephton; Geochemistry of the end-Permian extinction event in Austria and Italy: No evidence for an extraterrestrial component. Geology 2004;; 32 (12): 1053–1056. doi: https://doi.org/10.1130/G20907.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract The end-Permian mass extinction (251 Ma) was the largest in Earth's history, and the great extent of biospheric perturbation is recorded as dramatic shifts in carbon isotope ratios of sedimentary materials. Both terrestrial and extraterrestrial events are commonly invoked as causative mechanisms for the crisis, and the primary reason for the event remains the subject of controversy. Geochemical indicators sensitive to the influence of extraterrestrial material involve platinum group elements and osmium and helium isotope ratios. Analyses of extinction levels in two sections from Austria and Italy reveal no evidence of an extraterrestrial impact. The end-Permian crisis, it appears, was a homegrown catastrophe. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.