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Coupling of marine and continental oxygen isotope records during the Eocene-Oligocene transition

2015; Geological Society of America; Volume: 128; Issue: 3-4 Linguagem: Inglês

10.1130/b31315.1

1943-2674

Nathan D. Sheldon, Stephen T. Grimes, Jerry J. Hooker, Margaret E. Collinson, M. Bugler, Michael T. Hren, Gregory D. Price, Paul Sutton,

Marine and coastal ecosystems

Research Article| March 01, 2016 Coupling of marine and continental oxygen isotope records during the Eocene-Oligocene transition Nathan D. Sheldon; Nathan D. Sheldon † 1Department of Earth and Environmental Sciences, University of Michigan, Ann Arbor, Michigan 48109, USA †nsheldon@umich.edu Search for other works by this author on: GSW Google Scholar Stephen T. Grimes; Stephen T. Grimes 2School of Geography, Earth & Environmental Sciences, Plymouth University, Drake Circus, Plymouth, Devon, PL4 8AA, UK Search for other works by this author on: GSW Google Scholar Jerry J. Hooker; Jerry J. Hooker 3Department of Earth Sciences, Natural History Museum, Cromwell Road, London, SW7 5BD, UK Search for other works by this author on: GSW Google Scholar Margaret E. Collinson; Margaret E. Collinson 4Department of Earth Sciences, Royal Holloway University of London, Egham, Surrey, TW20 0EX, UK Search for other works by this author on: GSW Google Scholar Melanie J. Bugler; Melanie J. Bugler 2School of Geography, Earth & Environmental Sciences, Plymouth University, Drake Circus, Plymouth, Devon, PL4 8AA, UK Search for other works by this author on: GSW Google Scholar Michael T. Hren; Michael T. Hren 5Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, USA Search for other works by this author on: GSW Google Scholar Gregory D. Price; Gregory D. Price 2School of Geography, Earth & Environmental Sciences, Plymouth University, Drake Circus, Plymouth, Devon, PL4 8AA, UK Search for other works by this author on: GSW Google Scholar Paul A. Sutton Paul A. Sutton 2School of Geography, Earth & Environmental Sciences, Plymouth University, Drake Circus, Plymouth, Devon, PL4 8AA, UK Search for other works by this author on: GSW Google Scholar Author and Article Information Nathan D. Sheldon † 1Department of Earth and Environmental Sciences, University of Michigan, Ann Arbor, Michigan 48109, USA Stephen T. Grimes 2School of Geography, Earth & Environmental Sciences, Plymouth University, Drake Circus, Plymouth, Devon, PL4 8AA, UK Jerry J. Hooker 3Department of Earth Sciences, Natural History Museum, Cromwell Road, London, SW7 5BD, UK Margaret E. Collinson 4Department of Earth Sciences, Royal Holloway University of London, Egham, Surrey, TW20 0EX, UK Melanie J. Bugler 2School of Geography, Earth & Environmental Sciences, Plymouth University, Drake Circus, Plymouth, Devon, PL4 8AA, UK Michael T. Hren 5Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, USA Gregory D. Price 2School of Geography, Earth & Environmental Sciences, Plymouth University, Drake Circus, Plymouth, Devon, PL4 8AA, UK Paul A. Sutton 2School of Geography, Earth & Environmental Sciences, Plymouth University, Drake Circus, Plymouth, Devon, PL4 8AA, UK †nsheldon@umich.edu Publisher: Geological Society of America Received: 06 Mar 2015 Revision Received: 17 Jun 2015 Accepted: 26 Aug 2015 First Online: 08 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 © 2015 Geological Society of America GSA Bulletin (2016) 128 (3-4): 502–510. https://doi.org/10.1130/B31315.1 Article history Received: 06 Mar 2015 Revision Received: 17 Jun 2015 Accepted: 26 Aug 2015 First Online: 08 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Nathan D. Sheldon, Stephen T. Grimes, Jerry J. Hooker, Margaret E. Collinson, Melanie J. Bugler, Michael T. Hren, Gregory D. Price, Paul A. Sutton; Coupling of marine and continental oxygen isotope records during the Eocene-Oligocene transition. GSA Bulletin 2016;; 128 (3-4): 502–510. doi: https://doi.org/10.1130/B31315.1 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 While marine records of the Eocene-Oligocene transition indicate a generally coherent response to global cooling and the growth of continental ice on Antarctica, continental records indicate substantial spatial variability. Marine Eocene-Oligocene transition records are marked by an ∼+1.1‰ foraminiferal δ18O shift, but continental records rarely record the same geochemical signature, making both correlation and linking of causal mechanisms between marine and continental records challenging. Here, a new high-resolution continental δ18O record, derived from the freshwater gill-breathing gastropod Viviparus lentus, is presented from the Hampshire Basin, UK. The Solent Group records marine incursions and has an established magnetostratigraphy, making it possible to correlate the succession directly with marine records. The V. lentus δ18O record indicates a penecontemporaneous, higher-magnitude shift (>+1.4‰) than marine records, which reflects both cooling and a source moisture compositional shift consistent with the growth of Antarctic ice. When combined with "clumped" isotope measurements from the same succession, about half of the isotopic shift can be attributed to cooling and about half to source moisture change, proportions similar to marine foraminiferal records. Thus, the new record indicates strong hydrological cycle connections between marine and marginal continental environments during the Eocene-Oligocene transition not observed in continental interior records. 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