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Isotopic analysis of coexisting Late Jurassic fish otoliths and molluscs: Implications for upper-ocean water temperature estimates

2009; Geological Society of America; Volume: 37; Issue: 3 Linguagem: Inglês

10.1130/g25377a.1

1943-2682

Gregory D. Price, David M. Wilkinson, Malcolm B. Hart, Kevin Page, Stephen T. Grimes,

Marine and fisheries research

Research Article| March 01, 2009 Isotopic analysis of coexisting Late Jurassic fish otoliths and molluscs: Implications for upper-ocean water temperature estimates G.D. Price; G.D. Price 1School of Earth, Ocean, and Environmental Sciences, University of Plymouth, Drake Circus, Plymouth PL4 8AA, UK Search for other works by this author on: GSW Google Scholar D. Wilkinson; D. Wilkinson 1School of Earth, Ocean, and Environmental Sciences, University of Plymouth, Drake Circus, Plymouth PL4 8AA, UK Search for other works by this author on: GSW Google Scholar M.B. Hart; M.B. Hart 1School of Earth, Ocean, and Environmental Sciences, University of Plymouth, Drake Circus, Plymouth PL4 8AA, UK Search for other works by this author on: GSW Google Scholar K.N. Page; K.N. Page 1School of Earth, Ocean, and Environmental Sciences, University of Plymouth, Drake Circus, Plymouth PL4 8AA, UK Search for other works by this author on: GSW Google Scholar S.T. Grimes S.T. Grimes 1School of Earth, Ocean, and Environmental Sciences, University of Plymouth, Drake Circus, Plymouth PL4 8AA, UK Search for other works by this author on: GSW Google Scholar Author and Article Information G.D. Price 1School of Earth, Ocean, and Environmental Sciences, University of Plymouth, Drake Circus, Plymouth PL4 8AA, UK D. Wilkinson 1School of Earth, Ocean, and Environmental Sciences, University of Plymouth, Drake Circus, Plymouth PL4 8AA, UK M.B. Hart 1School of Earth, Ocean, and Environmental Sciences, University of Plymouth, Drake Circus, Plymouth PL4 8AA, UK K.N. Page 1School of Earth, Ocean, and Environmental Sciences, University of Plymouth, Drake Circus, Plymouth PL4 8AA, UK S.T. Grimes 1School of Earth, Ocean, and Environmental Sciences, University of Plymouth, Drake Circus, Plymouth PL4 8AA, UK Publisher: Geological Society of America Received: 25 Jul 2008 Revision Received: 23 Oct 2008 Accepted: 24 Oct 2008 First Online: 02 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 © 2009 Geological Society of America Geology (2009) 37 (3): 215–218. https://doi.org/10.1130/G25377A.1 Article history Received: 25 Jul 2008 Revision Received: 23 Oct 2008 Accepted: 24 Oct 2008 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation G.D. Price, D. Wilkinson, M.B. Hart, K.N. Page, S.T. Grimes; Isotopic analysis of coexisting Late Jurassic fish otoliths and molluscs: Implications for upper-ocean water temperature estimates. Geology 2009;; 37 (3): 215–218. doi: https://doi.org/10.1130/G25377A.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 SocietyGeology Search Advanced Search Abstract The δ18O compositions of well-preserved Jurassic fish otoliths from Wootton Bassett, UK, provide upper-ocean paleotemperatures that are comparable with those derived from the isotopic analysis of fish tooth phosphates, providing independent scrutiny of such paleotemperatures. δ18O otolith temperatures in excess of 30 °C also rival temperatures associated with the middle Cretaceous thermal maximum. The negative carbon isotopes of the otoliths may point to a freshwater influence and potentially migratory nature of the fish. However, given the large departures from equilibrium fractionation toward more negative carbon values reported from modern marine fish, we consider our temperature interpretations to be robust and representative of the marine depositional environment. Depleted δ13C values, we believe, suggest that the otoliths examined in this study belong to fish with high metabolic rates. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.