The middle Eocene climatic optimum event in the Contessa Highway section, Umbrian Apennines, Italy

Research Article| March 01, 2007 The middle Eocene climatic optimum event in the Contessa Highway section, Umbrian Apennines, Italy Luigi Jovane; Luigi Jovane 1Istituto Nazionale di Geofisica e Vulcanologia, Via di Vigna Murata 605, 00143 Rome, Italy, and Dipartimento di Fisica, Università di Bologna, Via Berti Pichat 8, 40127, Bologna, Italy Search for other works by this author on: GSW Google Scholar Fabio Florindo; Fabio Florindo 2Istituto Nazionale di Geofisica e Vulcanologia, Via di Vigna Murata 605, 00143 Rome, Italy Search for other works by this author on: GSW Google Scholar Rodolfo Coccioni; Rodolfo Coccioni 3Istituto di Geologia e Centro di Geobiologia, Università degli Studi di Urbino “Carlo Bo,” Campus Scientifico, Località Crocicchia, 61029 Urbino, Italy Search for other works by this author on: GSW Google Scholar Jaume Dinarès-Turell; Jaume Dinarès-Turell 4Istituto Nazionale di Geofisica e Vulcanologia, Via di Vigna Murata 605, 00143 Rome, Italy Search for other works by this author on: GSW Google Scholar Andrea Marsili; Andrea Marsili 5Istituto di Geologia e Centro di Geobiologia, Università degli Studi di Urbino “Carlo Bo,” Campus Scientifico, Località Crocicchia, 61029 Urbino, Italy Search for other works by this author on: GSW Google Scholar Simonetta Monechi; Simonetta Monechi 6Dipartimento di Scienze della Terra, Università degli Studi di Firenze, Via La Pira 4, 50121 Florence, Italy Search for other works by this author on: GSW Google Scholar Andrew P. Roberts; Andrew P. Roberts 7National Oceanography Centre, University of Southampton, European Way, Southampton SO14 3ZH, UK Search for other works by this author on: GSW Google Scholar Mario Sprovieri Mario Sprovieri 8Istituto Ambiente Marino Costiero, Consiglio Nazionale delle Ricerche (CNR), Calata Porta di Massa (Interno Porto di Napoli), 80133 Naples, Italy Search for other works by this author on: GSW Google Scholar Author and Article Information Luigi Jovane 1Istituto Nazionale di Geofisica e Vulcanologia, Via di Vigna Murata 605, 00143 Rome, Italy, and Dipartimento di Fisica, Università di Bologna, Via Berti Pichat 8, 40127, Bologna, Italy Fabio Florindo 2Istituto Nazionale di Geofisica e Vulcanologia, Via di Vigna Murata 605, 00143 Rome, Italy Rodolfo Coccioni 3Istituto di Geologia e Centro di Geobiologia, Università degli Studi di Urbino “Carlo Bo,” Campus Scientifico, Località Crocicchia, 61029 Urbino, Italy Jaume Dinarès-Turell 4Istituto Nazionale di Geofisica e Vulcanologia, Via di Vigna Murata 605, 00143 Rome, Italy Andrea Marsili 5Istituto di Geologia e Centro di Geobiologia, Università degli Studi di Urbino “Carlo Bo,” Campus Scientifico, Località Crocicchia, 61029 Urbino, Italy Simonetta Monechi 6Dipartimento di Scienze della Terra, Università degli Studi di Firenze, Via La Pira 4, 50121 Florence, Italy Andrew P. Roberts 7National Oceanography Centre, University of Southampton, European Way, Southampton SO14 3ZH, UK Mario Sprovieri 8Istituto Ambiente Marino Costiero, Consiglio Nazionale delle Ricerche (CNR), Calata Porta di Massa (Interno Porto di Napoli), 80133 Naples, Italy Publisher: Geological Society of America Received: 18 Oct 2005 Revision Received: 30 Oct 2006 Accepted: 28 Nov 2006 First Online: 08 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 GEOLOGICAL SOCIETY OF AMERICA GSA Bulletin (2007) 119 (3-4): 413–427. https://doi.org/10.1130/B25917.1 Article history Received: 18 Oct 2005 Revision Received: 30 Oct 2006 Accepted: 28 Nov 2006 First Online: 08 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Luigi Jovane, Fabio Florindo, Rodolfo Coccioni, Jaume Dinarès-Turell, Andrea Marsili, Simonetta Monechi, Andrew P. Roberts, Mario Sprovieri; The middle Eocene climatic optimum event in the Contessa Highway section, Umbrian Apennines, Italy. GSA Bulletin 2007;; 119 (3-4): 413–427. doi: https://doi.org/10.1130/B25917.1 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 We report a high-resolution paleomagnetic investigation constrained by new qualitative and semiquantitative analyses of planktic and benthic foraminifera, nan-nofossil assemblages, integrated with oxygen and carbon isotope measurements, for the middle Eocene Scaglia limestones of the Contessa Highway section, central Italy. Calcareous plankton assemblages enable recognition of several biostratigraphic events from planktic foraminiferal zone P11 to the lower part of zone P15 and from calcareous nannofossil zone NP15 to the upper part of zone NP17, which results in refinement of the magnetobiostratigraphy of the Contessa Highway section. Correlation of the paleomagnetic polarity pattern with the geomagnetic polarity time scale provides a direct age interpretation for strata around the middle Eocene Scaglia limestones of the Contessa Highway section, from chrons C21n (47 Ma) through to subchron C18n.1n (38.5 Ma). Bulk carbon isotope values indicate a distinct carbon isotopic shift at 40 Ma that is interpreted to represent the first evidence in the Northern Hemisphere of the middle Eocene climatic optimum, which has recently been observed as a stable isotope anomaly in multiple records from the Indian-Atlantic sector of the Southern Ocean. This demonstrates a global response of the carbon cycle to the proposed transient increased pCO2 levels during the late middle Eocene and consequent global CO2-driven climate change. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.