Moderate levels of oxygenation during the late stage of Earth's Great Oxidation Event

Frantz Ossa Ossa^*, Jorge E. Spangenberg, Andrey Bekker, Stephan König, Eva E. Stüeken, Axel Hofmann, Simon W. Poulton, Aierken Yierpan, Maria I. Varas-Reus, Benjamin Eickmann, Morten B. Andersen, Ronny Schoenberg