Strong evidence for a weakly oxygenated ocean–atmosphere system during the Proterozoic
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DOI: 10.1073/pnas.2116101119
Abstract: Significance Earth’s transition from anoxic oceans and atmosphere to a well-oxygenated state led to major changes in nearly every surficial system. However, estimates of surface oxygen levels in the billion years preceding this shift span… read more here.
Keywords: system; ocean atmosphere; oxygen levels; oxygen ... See more keywords