Reexamination of 2.5-Ga “whiff” of oxygen interval points to anoxic ocean before GOE
Sarah P. Slotznick, Jena E. Johnson, Birger Rasmussen, Timothy D. Raub, Samuel M. Webb, Jian‐Wei Zi, Joseph L. Kirschvink, Woodward W. Fischer
Abstract
S in trace-metal–poor, early diagenetic pyrite and the unusually enriched organic carbon at low sedimentation rates instead suggest that environmental oxygen levels were negligible ∼150 million years before the GOE.
Topics & Concepts
Anoxic watersMicroscale chemistryOxygenEnvironmental scienceDeposition (geology)Interval (graph theory)Transient (computer programming)Environmental chemistryChemistryBiologyPaleontologyMathematicsComputer scienceMathematics educationOrganic chemistrySedimentCombinatoricsOperating systemGeochemistry and Elemental AnalysisPaleontology and Stratigraphy of FossilsAstro and Planetary Science