Climate changes caused by degassing of sediments during the emplacement of large igneous provinces

Research Article| April 01, 2009 Climate changes caused by degassing of sediments during the emplacement of large igneous provinces Clément Ganino; Clément Ganino * 1Laboratoire de Géodynamique des Chaînes Alpines, Université Joseph Fourier de Grenoble, CNRS, 1381 Rue de la Piscine 38400 Saint Martin d'Hères, France *E-mail: clement.ganino@ujf-grenoble.fr Search for other works by this author on: GSW Google Scholar Nicholas T. Arndt Nicholas T. Arndt 1Laboratoire de Géodynamique des Chaînes Alpines, Université Joseph Fourier de Grenoble, CNRS, 1381 Rue de la Piscine 38400 Saint Martin d'Hères, France Search for other works by this author on: GSW Google Scholar Author and Article Information Clément Ganino * 1Laboratoire de Géodynamique des Chaînes Alpines, Université Joseph Fourier de Grenoble, CNRS, 1381 Rue de la Piscine 38400 Saint Martin d'Hères, France Nicholas T. Arndt 1Laboratoire de Géodynamique des Chaînes Alpines, Université Joseph Fourier de Grenoble, CNRS, 1381 Rue de la Piscine 38400 Saint Martin d'Hères, France *E-mail: clement.ganino@ujf-grenoble.fr Publisher: Geological Society of America Received: 09 Jul 2008 Revision Received: 18 Nov 2008 Accepted: 20 Nov 2008 First Online: 02 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 © 2009 Geological Society of America Geology (2009) 37 (4): 323–326. https://doi.org/10.1130/G25325A.1 Article history Received: 09 Jul 2008 Revision Received: 18 Nov 2008 Accepted: 20 Nov 2008 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Clément Ganino, Nicholas T. Arndt; Climate changes caused by degassing of sediments during the emplacement of large igneous provinces. Geology 2009;; 37 (4): 323–326. doi: https://doi.org/10.1130/G25325A.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 Most mass extinctions during the last 500 m.y. coincide with eruptions of large igneous provinces (LIPs). The Cretaceous-Tertiary extinction was synchronous with the Deccan flood volcanism, the Permian-Triassic extinction with the eruption of the enormous Siberian traps, and the end-Guadalupian extinction with the Emeishan volcanic province. The causal link remains disputed, however, and many LIPs apparently had no significant impact on the biosphere. Here we show that a key control on the destructive consequences of LIP emplacement is the type of sedimentary rock in basins beneath the flood basalts. Contact metamorphism around intrusions in dolomite, evaporite, coal, or organic-rich shale generates large quantities of greenhouse and toxic gases (CO2, CH4, SO2), which subsequently vent to the atmosphere and cause global warming and mass extinctions. The release of sediment-derived gases had a far greater impact on the environment than the emission of magmatic gases. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.