How Great was the “Great Oxidation Event”?
Sign Up to like & getrecommendations! Published in 2024 at "Eos"
DOI: 10.1029/2024eo240313
Abstract: Geochemical sleuthing amid acid mine runoff suggests that scientists should rethink an isotope signal long taken to indicate low levels of atmospheric oxygen in Earth’s deep past. read more here.
Keywords: great oxidation; great great; oxidation event;
Transient oxidation of hazes a source of nutrients during the great oxidation event
Sign Up to like & getrecommendations! Published in 2025 at "Scientific Reports"
DOI: 10.1038/s41598-025-13441-1
Abstract: The transition period of the Great Oxidation Event (GOE) saw the emergence of transient physical and chemical processes. In this context, photochemical organic hazes may have evolved in an atmosphere containing low concentrations of oxygen… read more here.
Keywords: transient; oxidation event; great oxidation; transient oxidation ... See more keywords
The Great Oxidation Event expanded the genetic repertoire of arsenic metabolism and cycling
Sign Up to like & getrecommendations! Published in 2020 at "Proceedings of the National Academy of Sciences of the United States of America"
DOI: 10.1073/pnas.2001063117
Abstract: Significance The oxygenation of the atmosphere about 2.4 billion years ago remodeled global cycles of toxic, redox-sensitive metal(loids), including that of arsenic, which must have represented a cataclysm in the history of life. Our understanding… read more here.
Keywords: oxidation event; great oxidation; arsenic resistance; event expanded ... See more keywords
Searching for the Great Oxidation Event in North America: A Reappraisal of the Huronian Supergroup by SIMS Sulfur Four-Isotope Analysis.
Sign Up to like & getrecommendations! Published in 2018 at "Astrobiology"
DOI: 10.1089/ast.2017.1722
Abstract: Sedimentological observations from the Paleoproterozoic Huronian Supergroup are suggested to mark the rise in atmospheric oxygen at that time, which is commonly known as the Great Oxidation Event (GOE) and typically coupled with a transition… read more here.
Keywords: transition; oxidation event; great oxidation; mass ... See more keywords
Post‐Great Oxidation Event Orosirian–Statherian iron formations on the São Francisco craton: Geotectonic implications
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DOI: 10.1111/iar.12300
Abstract: The protocratonic core of the São Francisco craton assembled during the 2.1–2.0 Ga Transamazonian orogeny. Orosirian Fe‐rich sequences that extend from the northwestern border of the São Francisco protocraton (Colomi Group) to the southeast under the… read more here.
Keywords: iron; iron formations; great oxidation; oxidation event ... See more keywords
Destabilization of deep oxidized mantle drove the Great Oxidation Event
Sign Up to like & getrecommendations! Published in 2022 at "Science Advances"
DOI: 10.1126/sciadv.abg1626
Abstract: The rise of Earth’s atmospheric O2 levels at ~2.4 Ga was driven by a shift between increasing sources and declining sinks of oxygen. Here, we compile recent evidence that the mantle shows a significant increase… read more here.
Keywords: deep oxidized; oxidation; great oxidation; destabilization deep ... See more keywords
A new Re-Os age constraint informs the dynamics of the Great Oxidation Event
Sign Up to like & getrecommendations! Published in 2024 at "Geology"
DOI: 10.1130/g52481.1
Abstract: The early Paleoproterozoic (ca. 2.5−2.2 Ga) represents a critical juncture in Earth history, marking the inception of an oxygenated atmosphere while bearing witness to potentially multiple widespread and severe glaciations. Deciphering the nature of this… read more here.
Keywords: age; new age; duitschland; oxidation event ... See more keywords