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The Paleocene-Eocene thermal maximum (PETM) in shallow-marine successions of the Adriatic carbonate platform (SW Slovenia)

2012; Geological Society of America; Volume: 124; Issue: 7-8 Linguagem: Inglês

10.1130/b30553.1

1943-2674

J. Zamagni, Maria Mutti, Paolo Ballato, Adrijan Košir,

Marine Biology and Ecology Research

Research Article| July 01, 2012 The Paleocene–Eocene thermal maximum (PETM) in shallow-marine successions of the Adriatic carbonate platform (SW Slovenia) Jessica Zamagni; Jessica Zamagni † 1Institut für Erd- und Umweltwissenschaften, Universität Potsdam, Karl Liebknecht Strasse 24, D-14476 Golm, Potsdam, Germany †E-mails: zamagni@geo.uni-potsdam.de; mmutti@ geo.uni-potsdam.de; ballato@geo.uni-potsdam.de; adrijan@zrc-sazu.si Search for other works by this author on: GSW Google Scholar Maria Mutti; Maria Mutti † 1Institut für Erd- und Umweltwissenschaften, Universität Potsdam, Karl Liebknecht Strasse 24, D-14476 Golm, Potsdam, Germany †E-mails: zamagni@geo.uni-potsdam.de; mmutti@ geo.uni-potsdam.de; ballato@geo.uni-potsdam.de; adrijan@zrc-sazu.si Search for other works by this author on: GSW Google Scholar Paolo Ballato; Paolo Ballato † 1Institut für Erd- und Umweltwissenschaften, Universität Potsdam, Karl Liebknecht Strasse 24, D-14476 Golm, Potsdam, Germany †E-mails: zamagni@geo.uni-potsdam.de; mmutti@ geo.uni-potsdam.de; ballato@geo.uni-potsdam.de; adrijan@zrc-sazu.si Search for other works by this author on: GSW Google Scholar Adrijan Košir Adrijan Košir † 2Ivan Rakovec Institute of Palaeontology, Research Centre of the Slovenian Academy of Science & Arts (ZRC SAZU), Novi trg 2, SI-1000 Ljubljana, Slovenia †E-mails: zamagni@geo.uni-potsdam.de; mmutti@ geo.uni-potsdam.de; ballato@geo.uni-potsdam.de; adrijan@zrc-sazu.si Search for other works by this author on: GSW Google Scholar Author and Article Information Jessica Zamagni † 1Institut für Erd- und Umweltwissenschaften, Universität Potsdam, Karl Liebknecht Strasse 24, D-14476 Golm, Potsdam, Germany Maria Mutti † 1Institut für Erd- und Umweltwissenschaften, Universität Potsdam, Karl Liebknecht Strasse 24, D-14476 Golm, Potsdam, Germany Paolo Ballato † 1Institut für Erd- und Umweltwissenschaften, Universität Potsdam, Karl Liebknecht Strasse 24, D-14476 Golm, Potsdam, Germany Adrijan Košir † 2Ivan Rakovec Institute of Palaeontology, Research Centre of the Slovenian Academy of Science & Arts (ZRC SAZU), Novi trg 2, SI-1000 Ljubljana, Slovenia †E-mails: zamagni@geo.uni-potsdam.de; mmutti@ geo.uni-potsdam.de; ballato@geo.uni-potsdam.de; adrijan@zrc-sazu.si Publisher: Geological Society of America Received: 22 May 2011 Revision Received: 04 Feb 2012 Accepted: 07 Feb 2012 First Online: 08 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 © 2012 Geological Society of America GSA Bulletin (2012) 124 (7-8): 1071–1086. https://doi.org/10.1130/B30553.1 Article history Received: 22 May 2011 Revision Received: 04 Feb 2012 Accepted: 07 Feb 2012 First Online: 08 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Jessica Zamagni, Maria Mutti, Paolo Ballato, Adrijan Košir; The Paleocene–Eocene thermal maximum (PETM) in shallow-marine successions of the Adriatic carbonate platform (SW Slovenia). GSA Bulletin 2012;; 124 (7-8): 1071–1086. doi: https://doi.org/10.1130/B30553.1 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 SocietyGSA Bulletin Search Advanced Search Abstract The Paleocene-Eocene thermal maximum represents one of the most rapid and extreme warming events in the Cenozoic. Shallow-water stratigraphic sections from the Adriatic carbonate platform offer a rare opportunity to learn about the nature of Paleocene-Eocene thermal maximum and the effects on shallow-water ecosystems. We use carbon and oxygen isotope stratigraphy, in conjunction with detailed larger benthic foraminiferal biostratigraphy, to establish a high-resolution paleoclimatic record for the Paleocene-Eocene thermal maximum. A prominent negative excursion in δ13C curves of bulk-rock (∼1‰–3‰), matrix (∼4‰), and foraminifera (∼6‰) is interpreted as the carbon isotope excursion during the Paleocene-Eocene thermal maximum. The strongly 13C-depleted δ13C record of our shallow-marine carbonates compared to open-marine records could result from organic matter oxidation, suggesting intensified weathering, runoff, and organic matter flux.The Ilerdian larger benthic foraminiferal turnover is documented in detail based on high-resolution correlation with the carbon isotopic excursion. The turnover is described as a two-step process, with the first step (early Ilerdian) marked by a rapid diversification of small alveolinids and nummulitids with weak adult dimorphism, possibly as adaptations to fluctuating Paleocene-Eocene thermal maximum nutrient levels, and a second step (middle Ilerdian) characterized by a further specific diversification, increase of shell size, and well-developed adult dimorphism. Within an evolutionary scheme controlled by long-term biological processes, we argue that high seawater temperatures could have stimulated the early Ilerdian rapid specific diversification. Together, these data help elucidate the effects of global warming and associated feedbacks in shallow-water ecosystems, and by inference, could serve as an assessment analog for future changes. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.