Trace metals as paleoredox and paleoproductivity proxies: An update

Riboulleau, Armelle; Algeo, Thomas J; Tribovillard, Nicolas; Lyons, Timothy W

doi:10.1016/j.chemgeo.2006.02.012

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Trace metals as paleoredox and paleoproductivity proxies: An update

Author(s): Nicolas Tribovillard , Thomas J. Algeo , Timothy Lyons , Armelle Riboulleau

Publication date Created: August 2006

Publication date (Print): August 2006

Journal: Chemical Geology

Publisher: Elsevier BV

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Early oxidation of organic matter in pelagic sediments of the eastern equatorial Atlantic: suboxic diagenesis

P.N. Froelich, G.P. Klinkhammer, M.L. Bender … (1979)

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Barium in Deep-Sea Sediment: A Geochemical Proxy for Paleoproductivity

Jack Dymond, Erwin Suess, Mitch Lyle (1992)

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Proterozoic ocean chemistry and evolution: a bioinorganic bridge?

A D Anbar, A Knoll (2002)

Recent data imply that for much of the Proterozoic Eon (2500 to 543 million years ago), Earth's oceans were moderately oxic at the surface and sulfidic at depth. Under these conditions, biologically important trace metals would have been scarce in most marine environments, potentially restricting the nitrogen cycle, affecting primary productivity, and limiting the ecological distribution of eukaryotic algae. Oceanic redox conditions and their bioinorganic consequences may thus help to explain observed patterns of Proterozoic evolution.