Freshwater Bivalves (Unionidae), Disequilibrium Isotopic Fractionation, and Temperatures

descriptionPublicationkeyboard_double_arrow_right Article 01 Dec 1993 United States Publisher:Society for Sedimentary GeologyJournal:PALAIOS, volume 8, page 602 (issn: 0883-1351,

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Authors: Fastovsky, D. E.; Arthur, M. A.; Strater, N. H.; Foss, A.;

doi: 10.2307/3515035

Freshwater Bivalves (Unionidae), Disequilibrium Isotopic Fractionation, and Temperatures

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Abstract

A one-year study of two ponds and one river in Rhode Island was implemented to determine whether Recent freshwater bivalves (Unionidae: Elliptio complanata) secrete aragonite in oxygen isotopic equilibrium with the water in which they grow. Water samples and animals were retrieved from each locality at two-week intervals for one year. The oxygen and carbon stable isotopic composition of the youngest growth increment of the shells (shell edge) and the oxygen isotopic composition of water were measured and compared with the temperatures recorded during sampling, via published equilibrium, fractionation relationships

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United States

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University of Rhode Island
United States

Keywords

550

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