Proterozoic Ocean Chemistry and Evolution: A Bioinorganic Bridge?

Details Proterozoic Ocean Chemistry and Evolution: A Bioinorganic Bridge? Proterozoic Ocean Chemistry and Evolution: A Bioinorganic Bridge?

Aug 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002sci...297.1137a&link_type=abstract

Science, Volume 297, Issue 5584, pp. 1137-1143 (2002).

Mathematics

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60

Scientific paper

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.

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