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Science 29 September 2006:
Vol. 313. no. 5795, pp. 1896 - 1897
DOI: 10.1126/science.1133496
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Perspectives

GEOCHEMISTRY:
Manganese Redox Chemistry Revisited

Kenneth S. Johnson

Manganese in natural oxygen-poor waters can persist in a 3 oxidation state, a state previously seen only in the lab, necessitating a major revision of the current understanding of manganese aqueous geochemistry.

The author is at the Monterey Bay Aquarium Research Institute, Moss Landing, CA 95039, USA. E-mail: johnson{at}mbari.org

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Science. ISSN 0036-8075 (print), 1095-9203 (online)