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Bivalve skeletons record sea-surface temperature and δ18O via Mg/Ca and 18O/16O ratios

1996; Geological Society of America; Volume: 24; Issue: 5 Linguagem: Inglês

10.1130/0091-7613(1996)024 2.3.co;2

1943-2682

R. Klein, Kyger C. Lohmann, Charles W. Thayer,

Marine Biology and Ecology Research

Research Article| May 01, 1996 Bivalve skeletons record sea-surface temperature and δ18O via Mg/Ca and 18O/16O ratios Robert T. Klein; Robert T. Klein 1University of Michigan, Department of Geological Sciences, Ann Abor, Michigan 48109-1063 Search for other works by this author on: GSW Google Scholar Kyger C Lohmann; Kyger C Lohmann 1University of Michigan, Department of Geological Sciences, Ann Abor, Michigan 48109-1063 Search for other works by this author on: GSW Google Scholar Charles W. Thayer Charles W. Thayer 2University of Pennsylvania, Department of Geology, Philadelphia, Pennsylvania 19104-6316 Search for other works by this author on: GSW Google Scholar Author and Article Information Robert T. Klein 1University of Michigan, Department of Geological Sciences, Ann Abor, Michigan 48109-1063 Kyger C Lohmann 1University of Michigan, Department of Geological Sciences, Ann Abor, Michigan 48109-1063 Charles W. Thayer 2University of Pennsylvania, Department of Geology, Philadelphia, Pennsylvania 19104-6316 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1996) 24 (5): 415–418. https://doi.org/10.1130/0091-7613(1996)024 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 Email Permissions Search Site Citation Robert T. Klein, Kyger C Lohmann, Charles W. Thayer; Bivalve skeletons record sea-surface temperature and δ18O via Mg/Ca and 18O/16O ratios. Geology 1996;; 24 (5): 415–418. doi: https://doi.org/10.1130/0091-7613(1996)024 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 Paleotemperatures have been widely deduced from skeletal 18O/16O ratios, but these are also dependent on salinity. Without an independent measure of salinity, 18O/16O ratios cannot provide accurate data on past temperature and climate. We grew marine mollusks (bivalves) in the field while real-time data on local seawater temperature and chemistry (Mg, Ca, δ18O, and salinity) were gathered. Here we show that for Mytilus trossulus, skeletal Mg/Ca ratios provide an accurate measure of temperature and that weekly sea-surface temperatures may be estimated with an apparent accuracy of approximately ± 1.5 °C. Thus, with analyses of both Mg/Ca and δ18O from the same specimen, it is possible to determine seawater temperature and δ18O. 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.