Composition of Pacific Ocean ferromanganese nodules

Marine Geology
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Bulk composition of ferromanganese nodules from the pelagic environment of the Pacific Ocean is apparently related to nodule-growth rate, sediment-accumulation rate, and biologic productivity in the overlying seawater. Nodules with a high MnFe ratio and high Ni and Cu concentrations tend to occur in areas where primary productivity in the surface layer of the ocean is high and the sediment-accumulation rate low. Nodules with a low MnFe ratio and low Ni and Cu concentrations occur in areas either where sediment-accumulation rate is high or biologic productivity is low. They may have a MnFe ratio as low as one and accrete at rates as low as 1mm106yrs. Nodules with a larger MnFe ratio apparently have growth rates that are greater by as much as a factor of 10.

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Publication type Article
Publication Subtype Journal Article
Title Composition of Pacific Ocean ferromanganese nodules
Series title Marine Geology
DOI 10.1016/0025-3227(77)90036-6
Volume 23
Issue 4
Year Published 1977
Language English
Publisher Elsevier
Contributing office(s) Geology, Minerals, Energy, and Geophysics Science Center
Description 46
First page 285
Last page 303
Other Geospatial Pacific Ocean
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