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GEOTRACES IC1 (BATS) contamination-prone trace element isotopes Cd, Fe, Pb, Zn, Cu, and Mo intercalibration
Citation
Boyle, EA and John, S and Abouchami, W and Adkins, JF and Echegoyen-Sanz, Y and Ellwood, M and Flegal, AR and Fornace, K and Gallon, C and Galer, S and Gault-Ringold, M and Lacan, F and Radic, A and Rehkamper, M and Rouxel, O and Sohrin, Y and Stirling, C and Thompson, C and Vance, D and Xue, Z and Zhao, Y, GEOTRACES IC1 (BATS) contamination-prone trace element isotopes Cd, Fe, Pb, Zn, Cu, and Mo intercalibration, Limnology and Oceanography, 10, (9) pp. 653-665. ISSN 0024-3590 (2012) [Refereed Article]
Copyright Statement
Copyright 2012 American Society of Limnology and Oceanography, Inc.
DOI: 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.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | isotope geochemistry, intercalibration, marine |
| Research Division: | Earth Sciences |
| Research Group: | Oceanography |
| Research Field: | Chemical oceanography |
| Objective Division: | Environmental Management |
| Objective Group: | Marine systems and management |
| Objective Field: | Measurement and assessment of marine water quality and condition |
| UTAS Author: | Gault-Ringold, M (Dr Melanie East) |
| ID Code: | 125198 |
| Year Published: | 2012 |
| Deposited By: | CRC-Antarctic Climate & Ecosystems |
| Deposited On: | 2018-04-06 |
| Last Modified: | 2018-05-07 |
| Downloads: | 0 |
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