%0 Journal Article %J Nature Geoscience %D 2019 %T Fully oxygenated water columns over continental shelves before the Great Oxidation Event %A Chadlin M. Ostrander %A Sune G. Nielsen %A Jeremy D. Owens %A Brian Kendall %A Gwyneth W. Gordon %A Stephen J. Romaniello %A Ariel D. Anbar %B Nature Geoscience %V 12 %P 186-191 %G eng