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Abundance of zinc isotopes as a marine biogeochemical tracer
Open accessAbstract
The Zn isotopic compositions of ferromanganese nodules, sediment trap samples, sediments, and organic reference samples have been analyzed by multiple collector inductively coupled plasma–mass spectrometry (ICP‐MS). The range of isotopic variations (1‰ for 66 Zn/64 Zn) is significant with respect to the analytical precision (0.04‰ at the 95% confidence level). Marine argillaceous sediments show rather constant values consistent with those of continental shales and loess and with the value of a basalt from Réunion Island. We infer that the depletion of the light Zn isotopes in marine particles and in ferromanganese nodules (presumably equilibrated with seawater) results from biological activity in the upper water column. The δ 66 Zn values of sediment trap samples collected near the upwelling off the coast of Mauritania (central Atlantic) show a seasonal isotopic fluctuation consistent with biological pumping during the high‐productivity period. Higher values of δ 66 Zn in nodules appear to be associated with the amplitude of seasonal variations rather than with the mean values of the biological productivity.
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Antoine, D., André, J., & Morel, A. (1996) · Global Biogeochemical Cycles · doi:10.1029/95gb02832 · Cited by 911
Cited by
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Weyer, S., & Schwieters, J. B. (2003) · International Journal of Mass Spectrometry · doi:10.1016/s1387-3806(03)00078-2 · Cited by 398
Metal Stable Isotopes in Paleoceanography
Anbar, A. D., & Rouxel, O. (2007) · Annual Review of Earth and Planetary Sciences · doi:10.1146/annurev.earth.34.031405.125029 · Cited by 365
Little, S. H., Vance, D., Walker-Brown, C., & Landing, W. M. (2014) · Geochimica et Cosmochimica Acta · doi:10.1016/j.gca.2013.07.046 · Cited by 353
Zn isotope evidence for immediate resumption of primary productivity after snowball Earth
Kunzmann, M., Halverson, G. P., Sossi, P. A., Raub, T. D., Payne, J. L., & Kirby, J. (2013) · Geology · doi:10.1130/g33422.1 · Cited by 124
Johnson, T. M. (2004) · Chemical Geology · doi:10.1016/j.chemgeo.2003.11.015 · Cited by 108
Metadata
- Authors
- Maréchal, C. N., Nicolas, E., Douchet, C., & Albarède, F.
- Venue
- Geochemistry, Geophysics, Geosystems
- Publisher
- American Geophysical Union (AGU)
- Published
- 2000-05
- Volume
- 1
- Issue
- 5
- ISSN
- 1525-2027 (ISSN-L)
- OpenAlex
- W1649947189
- Cited by
- 234
- References
- 1
- FWCI
- 5.58
- Type
- journal article
- Language
- en
- Open access
- green
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- Maréchal, C. N., Nicolas, E., Douchet, C., & Albarède, F. (2000). Abundance of zinc isotopes as a marine biogeochemical tracer. Geochemistry, Geophysics, Geosystems. https://doi.org/10.1029/1999gc000029
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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