Abstract
SUSPENDED participate samples collected from the TAG hydrothermal vent field, at 26° N on the Mid-Atlantic Ridge, contain ˜10% of the total rare-earth element content (by volume) of ambient sea water. Shale-normalized distribution patterns show both positive europium anomalies and negative cerium anomalies, indicating that the rare-earth elements in these hydrothermal precipitates come from both hydrothermal vent fluid and seawater sources. Rare-earth/Fe concentration ratios in the suspended p articulate material increase at increasing distances from their hydro-thermal source, indicating that rare-earth elements must be continuously extracted from sea water as hydrothermal precipitates are dispersed through the water column. Therefore, although high-temperature vent fluids escaping from the sea floor are typically enriched 10–10,000 times in rare-earth elements relative to sea water1–4, hydrothermal systems must nevertheless act as a net sink in the global ocean budget of the rare-earth elements. But as the maximum rare-earth/Fe ratios observed for suspended particles are ˜10 times lower than previously reported values for hydrothermal sediments5–8, it seems that most of the uptake of rare-earth elements from sea water must occur only after hydrothermal precipitates have settled to the underlying sediments.
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References
Michard, A. et al. Nature 303, 795–797 (1983).
Michard, A. & Albarede, F. Chem. Geol. 55, 51–60 (1986).
Hinkley, T. K. & Tatsumoto, M. J. geophys. Res. 92, 1943–1959 (1987).
Campbell, A. C. et al. Nature 335, 514–519 (1988).
Bender, M. et al. Earth planet. Sci. Lett. 12, 425–433 (1971).
Ruhlin, D. E. & Owen, R. M. Geochim. cosmochim. Acta 50, 393–400 (1986).
Owen, R. M. & Olivarez, A. M. Mar. Chem. 25, 183–196 (1988).
Olivarez, A. M. & Owen, R. M. Geochim. cosmochim. Acta 53, 757–762 (1989).
Dymond, J. & Roth, S. Geochim. cosmochim. Acta 52, 2525–2536 (1988).
Bertram, C. J., thesis, Univ. Cambridge (1989).
Haskin, M. A. & Haskin, L. A. Science 154, 507–509 (1966).
Klinkhammer, G., Elderfield, H. & Hudson, A. Nature 305, 185–188 (1983).
Trocine, R. P. & Trefry, J. H. Earth planet. Sci. Lett. 88, 1–15 (1988).
Feely, R. A. et al. Earth planet. Sci. Lett. 96, 305–318 (1990).
Trefry, J. H. & Metz, S. Nature 342, 531–533 (1989).
German, C. R. et al. Eos 70, 1164 (1989).
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German, C., Klinkhammer, G., Edmond, J. et al. Hydrothermal scavenging of rare-earth elements in the ocean. Nature 345, 516–518 (1990). https://doi.org/10.1038/345516a0
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DOI: https://doi.org/10.1038/345516a0
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