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    GEOTRACES IC1 (BATS) contamination-prone trace element isotopes Cd, Fe, Pb, Zn, Cu, and Mo intercalibration

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    Date
    2012-09
    Author
    Boyle, Edward A.  Concept link
    John, Seth G.  Concept link
    Abouchami, Wafa  Concept link
    Adkins, Jess F.  Concept link
    Echegoyen-Sanz, Yolanda  Concept link
    Ellwood, Michael J.  Concept link
    Flegal, A. Russell  Concept link
    Fornace, Kyrstin L.  Concept link
    Gallon, Celine  Concept link
    Galer, Stephen J. G.  Concept link
    Gault-Ringold, Melanie  Concept link
    Lacan, Francois  Concept link
    Radic, Amandine  Concept link
    Rehkamper, Mark  Concept link
    Rouxel, Olivier J.  Concept link
    Sohrin, Yoshiki  Concept link
    Stirling, Claudine H.  Concept link
    Thompson, Claire  Concept link
    Vance, Derek  Concept link
    Xue, Zichen  Concept link
    Zhao, Ye  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/6632
    As published
    https://doi.org/10.4319/lom.2012.10.653
    DOI
    10.4319/lom.2012.10.653
    Abstract
    We report data on the isotopic composition of cadmium, copper, iron, lead, zinc, and molybdenum at the GEOTRACES IC1 BATS Atlantic intercalibration station. In general, the between lab and within-lab precisions are adequate to resolve global gradients and vertical gradients at this station for Cd, Fe, Pb, and Zn. Cd and Zn isotopes show clear variations in the upper water column and more subtle variations in the deep water; these variations are attributable, in part, to progressive mass fractionation of isotopes by Rayleigh distillation from biogenic uptake and/or adsorption. Fe isotope variability is attributed to heavier crustal dust and hydrothermal sources and light Fe from reducing sediments. Pb isotope variability results from temporal changes in anthropogenic source isotopic compositions and the relative contributions of U.S. and European Pb sources. Cu and Mo isotope variability is more subtle and close to analytical precision. Although the present situation is adequate for proceeding with GEOTRACES, it should be possible to improve the within-lab and between-lab precisions for some of these properties.
    Description
    Author Posting. © Association for the Sciences of Limnology and Oceanography, 2012. This article is posted here by permission of Association for the Sciences of Limnology and Oceanography for personal use, not for redistribution. The definitive version was published in Limnology and Oceanography: Methods 10 (2012): 653-665, doi:10.4319/lom.2012.10.653.
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    • Marine Chemistry and Geochemistry (MC&G)
    Suggested Citation
    Limnology and Oceanography: Methods 10 (2012): 653-665
     
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