The deep mantle gives clues to oxygen conditions in Earth's ancient ocean and atmosphere

University Tuebingen press release

Original source: Yierpan A, König S, Labidi J, Schoenberg R (2020): Recycled selenium in hot spot–influenced lavas records ocean-atmosphere oxygenation. Science Advances 6 (39), eabb6179 doi.org/10.1126/sciadv.abb6179