Recurrent Early Triassic ocean anoxia

Abstract

Research Article| February 01, 2013 Recurrent Early Triassic ocean anoxia S.E. Grasby; S.E. Grasby 1Geological Survey of Canada–Calgary, Natural Resources Canada, 3303 33rd Street N.W., Calgary, Alberta T2L 2A7, Canada2Department of Geosciences, University of Calgary, 2500 University Drive N.W., Calgary, Alberta T2N 1N4, Canada Search for other works by this author on: GSW Google Scholar B. Beauchamp; B. Beauchamp 2Department of Geosciences, University of Calgary, 2500 University Drive N.W., Calgary, Alberta T2N 1N4, Canada Search for other works by this author on: GSW Google Scholar A. Embry; A. Embry 1Geological Survey of Canada–Calgary, Natural Resources Canada, 3303 33rd Street N.W., Calgary, Alberta T2L 2A7, Canada Search for other works by this author on: GSW Google Scholar H. Sanei H. Sanei 1Geological Survey of Canada–Calgary, Natural Resources Canada, 3303 33rd Street N.W., Calgary, Alberta T2L 2A7, Canada2Department of Geosciences, University of Calgary, 2500 University Drive N.W., Calgary, Alberta T2N 1N4, Canada Search for other works by this author on: GSW Google Scholar Geology (2013) 41 (2): 175–178. https://doi.org/10.1130/G33599.1 Article history received: 07 May 2012 rev-recd: 08 Aug 2012 accepted: 18 Aug 2012 first online: 09 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 S.E. Grasby, B. Beauchamp, A. Embry, H. Sanei; Recurrent Early Triassic ocean anoxia. Geology 2013;; 41 (2): 175–178. doi: https://doi.org/10.1130/G33599.1 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 Early Triassic record, from the Smithian stratotype, shows that the organic carbon isotope record from northwest Pangea closely corresponds to major fluctuations in the inorganic carbon records from the Tethys, indicating truly global perturbations of the carbon cycle occurred during this time. Geochemical proxies for anoxia are strongly correlated with carbon isotopes, whereby negative shifts in δ13Corg are associated with shifts to more anoxic to euxinic conditions, and positive shifts are related to return to more oxic conditions. Rather than by a delayed or prolonged recovery, the Early Triassic is better characterized by a series of aborted biotic recoveries related to shifts back to ocean anoxia, potentially driven by recurrent volcanism. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.