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Czaja, A.D.; Johnson, C.M.; Roden, E.E.; Beard, B.L.; Voegelin, A; Nägler, T.F.; Beukes, N.J.; Wille, M (2012). Evidence for free oxygen in the Neoarchean ocean based on coupled iron-molybdenum isotope fractionation. Geochimica et cosmochimica acta, 86, pp. 118-137. New York, N.Y.: Elsevier Science 10.1016/j.gca.2012.03.007
