Browsing University of Waterloo by Subject "uranium"
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Shale heavy metal isotope records of low environmental O2 between two Archean oxidation events.
(Frontiers Media, 2022-04-26)Evidence of molecular oxygen (O₂) accumulation at Earth’s surface during the Archean (4.0–2.5 billion years ago, or Ga) seems to increase in its abundance and compelling nature toward the end of the eon, during the runup ...