Elemental and isotopic proxies of paleotemperature and paleosalinity: Climate reconstruction of the marginal northeast Pacific ca. 80 ka

Research Article| April 01, 1997 Elemental and isotopic proxies of paleotemperature and paleosalinity: Climate reconstruction of the marginal northeast Pacific ca. 80 ka Robert T. Klein; Robert T. Klein 1Department of Geological Sciences, University of Michigan, Ann Arbor, Michigan 48109-1063 Search for other works by this author on: GSW Google Scholar Kyger C Lohmann; Kyger C Lohmann 1Department of Geological Sciences, University of Michigan, Ann Arbor, Michigan 48109-1063 Search for other works by this author on: GSW Google Scholar George L. Kennedy George L. Kennedy 2Department of Geological Sciences, San Diego State University, San Diego, California 92182-1020 Search for other works by this author on: GSW Google Scholar Author and Article Information Robert T. Klein 1Department of Geological Sciences, University of Michigan, Ann Arbor, Michigan 48109-1063 Kyger C Lohmann 1Department of Geological Sciences, University of Michigan, Ann Arbor, Michigan 48109-1063 George L. Kennedy 2Department of Geological Sciences, San Diego State University, San Diego, California 92182-1020 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1997) 25 (4): 363–366. https://doi.org/10.1130/0091-7613(1997)025<0363:EAIPOP>2.3.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Robert T. Klein, Kyger C Lohmann, George L. Kennedy; Elemental and isotopic proxies of paleotemperature and paleosalinity: Climate reconstruction of the marginal northeast Pacific ca. 80 ka. Geology 1997;; 25 (4): 363–366. doi: https://doi.org/10.1130/0091-7613(1997)025<0363:EAIPOP>2.3.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 Isotope (δ18O) and minor element (Mg/Ca, Sr/Ca) analyses of a fossil shell of the marine mussel Mytilus trossulus (Gould) from the Whisky Run terrace at Coquille Point, Bandon, Oregon, enable reconstruction of a paleoclimatic profile for the temperate northeastern Pacific ca. 80–85 ka. The Whisky Run terrace is correlative with marine oxygen isotope (δ18O) substage 5a, the final sea-level highstand of the last interglacial complex. Herein we provide sea-surface temperature estimates and report on a new technique that allows estimates to be made of δ18O of seawater and riverine discharge from the skeletal chemistry of a single mussel shell. Estimates of mean annual temperature from Mg/Ca ratios are lower than those suggested by the accompanying fossil fauna, and significantly lower than present-day conditions. The data also suggest a decrease in the range of seasonal temperature extremes at 80 ka compared to today. Estimates of the fresh-water and seawater δ18O end members, −4.5‰ and +0.5‰, respectively, are slightly greater than modern values. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.