Carbon isotope anomaly and other geochemical changes at the Triassic-Jurassic boundary from a marine section in Hungary

Research Article| November 01, 2001 Carbon isotope anomaly and other geochemical changes at the Triassic-Jurassic boundary from a marine section in Hungary József Pálfy; József Pálfy 1Museum für Naturkunde, Universität zu Berlin, Invalidenstrasse 43, D-10115 Berlin, Germany Search for other works by this author on: GSW Google Scholar Attila Demény; Attila Demény 2Laboratory for Geochemical Research, Hungarian Academy of Sciences, Budaörsi út 45, H-1112 Budapest, Hungary Search for other works by this author on: GSW Google Scholar János Haas; János Haas 3Geological Research Group, Hungarian Academy of Sciences, Múzeum krt 4/a, H-1088 Budapest, Hungary Search for other works by this author on: GSW Google Scholar Magdolna Hetényi; Magdolna Hetényi 4University of Szeged, Department of Mineralogy, Geochemistry and Petrology, POB 651, H-6701 Szeged, Hungary Search for other works by this author on: GSW Google Scholar Michael J. Orchard; Michael J. Orchard 5Geological Survey of Canada, 101-605 Robson Street, Vancouver, British Columbia V6B 5J3, Canada Search for other works by this author on: GSW Google Scholar István Veto István Veto 6Hungarian Geological Institute, Stefánia út 14, H-1143 Budapest, Hungary Search for other works by this author on: GSW Google Scholar Author and Article Information József Pálfy 1Museum für Naturkunde, Universität zu Berlin, Invalidenstrasse 43, D-10115 Berlin, Germany Attila Demény 2Laboratory for Geochemical Research, Hungarian Academy of Sciences, Budaörsi út 45, H-1112 Budapest, Hungary János Haas 3Geological Research Group, Hungarian Academy of Sciences, Múzeum krt 4/a, H-1088 Budapest, Hungary Magdolna Hetényi 4University of Szeged, Department of Mineralogy, Geochemistry and Petrology, POB 651, H-6701 Szeged, Hungary Michael J. Orchard 5Geological Survey of Canada, 101-605 Robson Street, Vancouver, British Columbia V6B 5J3, Canada István Veto 6Hungarian Geological Institute, Stefánia út 14, H-1143 Budapest, Hungary Publisher: Geological Society of America Received: 15 Mar 2001 Revision Received: 25 Jun 2001 Accepted: 20 Jul 2001 First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2001) 29 (11): 1047–1050. https://doi.org/10.1130/0091-7613(2001)029<1047:CIAAOG>2.0.CO;2 Article history Received: 15 Mar 2001 Revision Received: 25 Jun 2001 Accepted: 20 Jul 2001 First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation József Pálfy, Attila Demény, János Haas, Magdolna Hetényi, Michael J. Orchard, István Veto; Carbon isotope anomaly and other geochemical changes at the Triassic-Jurassic boundary from a marine section in Hungary. Geology 2001;; 29 (11): 1047–1050. doi: https://doi.org/10.1130/0091-7613(2001)029<1047:CIAAOG>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 Most mass extinctions are linked with carbon isotope excursions, implying that biotic crises are coupled with changes in the global carbon cycle. The isotopic evolution during the end-Triassic extinction is far less documented than that for the other major Phanerozoic extinctions. Here we report a sharp and short-lived −3.5‰ excursion in carbon isotope values for carbonate (δ13Ccarb) corresponding to a −2‰ excursion in the isotopic composition of marine organic matter (δ13Corg) and other geochemical changes from the topmost Triassic in the Csovár section in Hungary. The Triassic- Jurassic boundary is defined by ammonoid and conodont biostratigraphy in a marine limestone sequence. A decline in primary productivity, release of methane through dissociation of gas hydrates, or a combination of the two may account for the correlative biotic and isotopic events. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.