Preliminary studies on the marine chemistry of ruthenium
Koide, M.; Stallard, M.; Hodge, V.; Goldberg, E.D. (1986). Preliminary studies on the marine chemistry of ruthenium. Neth. J. Sea Res. 20(2-3): 163-166
In: Netherlands Journal of Sea Research. Netherlands Institute for Sea Research (NIOZ): Groningen; Den Burg. ISSN 0077-7579; e-ISSN 1873-1406, meer
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| Auteurs | | Top |
- Koide, M.
- Stallard, M.
- Hodge, V.
- Goldberg, E.D.
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| Abstract |
An upper limit for the concentration of ruthenium in surface sea waters off the California coast is estimated to be 5 pg·dm-3 on the bases of laboratory analyses and of theoretical considerations. Ruthenium contents follow those of platinum in ferromanganese nodules. Like the latter element, the former appears to be oxidized from a dissolved state in sea water upon incorporation in the solid phases. Finally, the Pt/Ru ratios in pelagic sediments from the Pacific Ocean cluster around 3 to 4. The platinum metals are associated with the detrital phases and their concentrations are a measure of crustal values. |
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