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Comparison of elemental accumulation rates between ferromanganese deposits and sediments in the South Pacific Ocean

Chemical Geology

By:
and
DOI: 10.1016/0009-2541(74)90019-9

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Abstract

Rates of accumulation of Fe and Mn, as well as Cu, Ni, Co, Pb, Zn, Hg, U and Th have been determined for five ferromanganese deposits from four localities in the South Pacific Ocean. Manganese is accumulating in nodules and crusts at a rate roughly equivalent to that found to be accumulating in sediments in the same area. Iron shows a deficiency in accumulation in nodules and crusts with respect to sediments, especially near the continents, but also in the central and south-central Pacific. Copper is accumulating in nodules and crusts at a rate one order of magnitude less than the surrounding sediments. This is interpreted as meaning that most of the Mn is supplied as an authigenic phase to both sediments and nodules while Fe is supplied mostly by ferromanganese micro-nodules and by detrital and adsorbed components of sediments; and Cu is enriched in sediments relative to nodules and crusts most probably through biological activity. ?? 1974.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Comparison of elemental accumulation rates between ferromanganese deposits and sediments in the South Pacific Ocean
Series title:
Chemical Geology
DOI:
10.1016/0009-2541(74)90019-9
Volume
13
Issue:
3
Year Published:
1974
Language:
English
Publisher:
Elsevier
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Chemical Geology
First page:
187
Last page:
196
Number of Pages:
10