Cobalt and copper distributions in the waters of Santa Monica Basin, California

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Johnson, K. S., Stout, P. M., Berelson, W. M., & Sakamoto-Arnold, C. M. (1988). Cobalt and copper distributions in the waters of Santa Monica Basin, California. Nature, 332(6164), 527-530.
Metadata
TitleCobalt and copper distributions in the waters of Santa Monica Basin, California
AuthorsK. Johnson, P. Stout, W. Berelson, C. Sakamoto-Arnold
AbstractThe trace metals cobalt and copper are removed from the oceans interior by scavenging on to particle surfaces, but the mechanisms for removal of these two metals are probably quite different. Cobalt appears to be scavenged by manganese oxide particles, whereas organic compounds are the main carrier phase for copper. Remobilization of these metals in marine sediments therefore proceeds by different pathways. The differences in the pathways of remobilization are accentuated in oxygen-deficient environments: manganese oxide reduction is accelerated at low oxygen levels and organic carbon is preserved. Cobalt fluxes from sediments underlying oxygen-deficient waters should be enhanced and copper fluxes reduced. We report here measurements of the cobalt and copper distributions in the waters of an oxygen-deficient marine basin in the Southern California Bight. Cobalt concentrations near the bottom are raised four times above the background level, whereas copper concentrations show no increase. These measurements confirm features of existing models for the oceanic cycles of these metals.
JournalNature
Date1988
Volume332
Issue6164
Start page527
End page530
ISSN0028-0836
Subjectscobalt, copper, sea water, nonhuman, united states, cycles, marine basin, oceanic, oceanic cycle, oxygen deficiency, oxygen-deficient, scavenged, scavenging, USA, California, Santa Monica Basin
NoteCited By (since 1996):18, Oceanography, CODEN: NATUA

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