Terrestrial and marine extinction at the Triassic-Jurassic boundary synchronized with major carbon-cycle perturbation: A link to initiation of massive volcanism?

Abstract

Research Article| March 01, 2002 Terrestrial and marine extinction at the Triassic-Jurassic boundary synchronized with major carbon-cycle perturbation: A link to initiation of massive volcanism? Stephen P. Hesselbo; Stephen P. Hesselbo 1Department of Earth Sciences, University of Oxford, Parks Road, Oxford OX1 3PR, UK Search for other works by this author on: GSW Google Scholar Stuart A. Robinson; Stuart A. Robinson 1Department of Earth Sciences, University of Oxford, Parks Road, Oxford OX1 3PR, UK Search for other works by this author on: GSW Google Scholar Finn Surlyk; Finn Surlyk 2Geological Institute, University of Copenhagen, Øster Voldgade, DK-1350 Copenhagen K, Denmark Search for other works by this author on: GSW Google Scholar Stefan Piasecki Stefan Piasecki 3Geological Survey of Denmark and Greenland, Thoravej 8, DK-2400 Copenhagen NV, Denmark Search for other works by this author on: GSW Google Scholar Geology (2002) 30 (3): 251–254. https://doi.org/10.1130/0091-7613(2002)030<0251:TAMEAT>2.0.CO;2 Article history received: 15 Aug 2001 rev-recd: 27 Oct 2001 accepted: 29 Oct 2001 first online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Stephen P. Hesselbo, Stuart A. Robinson, Finn Surlyk, Stefan Piasecki; Terrestrial and marine extinction at the Triassic-Jurassic boundary synchronized with major carbon-cycle perturbation: A link to initiation of massive volcanism?. Geology 2002;; 30 (3): 251–254. doi: https://doi.org/10.1130/0091-7613(2002)030<0251:TAMEAT>2.0.CO;2 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 Mass extinction at the Triassic-Jurassic (Tr-J) boundary occurred about the same time (200 Ma) as one of the largest volcanic eruptive events known, that which characterized the Central Atlantic magmatic province. Organic carbon isotope data from the UK and Greenland demonstrate that changes in flora and fauna from terrestrial and marine environments occurred synchronously with a light carbon isotope excursion, and that this happened earlier than the Tr-J boundary marked by ammonites in the UK. The results also point toward synchronicity between extinctions and eruption of the first Central Atlantic magmatic province lavas, suggesting a causal link between loss of taxa and the very earliest eruptive phases. The initial isotopic excursion potentially provides a widely correlatable marker for the base of the Jurassic. A temporary return to heavier values followed, but relatively light carbon dominated the shallow oceanic and atmospheric reservoirs for at least 600 k.y. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.