Cited by 640Paleontology and Stratigraphy of FossilsGeological and Geochemical AnalysisGeochemistry and Elemental Analysis

Atmospheric oxygenation three billion years ago

Crowe, Sean A., Døssing, Lasse N., Beukes, Nicolas J., Bau, Michael, Kruger, Stephanus J., Frei, Robert, Canfield, Donald E.·2013·Nature

Abstract

It is widely assumed that atmospheric oxygen concentrations remained persistently low (less than 10(-5) times present levels) for about the first 2 billion years of Earth's history. The first long-term oxygenation of the atmosphere is thought to have taken place around 2.3 billion years ago, during the Great Oxidation Event. Geochemical indications of transient atmospheric oxygenation, however, date back to 2.6-2.7 billion years ago. Here we examine the distribution of chromium isotopes and redox-sensitive metals in the approximately 3-billion-year-old Nsuze palaeosol and in the near-contemporaneous Ijzermyn iron formation from the Pongola Supergroup, South Africa. We find extensive mobilization of redox-sensitive elements through oxidative weathering. Furthermore, using our data we compute a best minimum estimate for atmospheric oxygen concentrations at that time of 3 × 10(-4) times present levels. Overall, our findings suggest that there were appreciable levels of atmospheric oxygen about 3 billion years ago, more than 600 million years before the Great Oxidation Event and some 300-400 million years earlier than previous indications for Earth surface oxygenation.

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Crossref · 10.1038/nature12426

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  • More recent studies suggest a more complex and dynamic evolution scenario for pO2.

    “More recent studies, most of which were driven by the emergence of redox-sensitive trace element proxies, suggest a more complex and dynamic evolution scenario for pO2 (7–11).”
  • A much higher sink of seawater sulfate is required to maintain the very low sulfate levels previously suggested.

    “Therefore, a much higher sink of seawater sulfate is required to maintain the very low sulfate levels previously suggested (8, 34, 60).”
  • Crowe et al. found that δ53Cr compositions of 2.96 Ga paleosols were fractionated relative to crustal values, indicating oxidative mobilization of Cr and the presence of low atmospheric oxygen (~10^-4 PAL).

    “Crowe et al. (2013) found that the δ 53 Cr isotope compositions of 2.96 Ga paleosols were fractionated relative to the crustal values, indicating oxidative mobilization of Cr and the presence of low levels of atmospheric oxygen (~10 -4 PAL; the level required to prevent reduction of Cr[VI] by Fe[II] during transport to the ocean).”

    From Trace elements at the intersection of marine biological and geochemical evolution (2016) · cites this paper as Crowe et al., 2013

  • Those authors suggested that the peak in Se at about 3.0 Ga in the pyrite record is consistent with Cr and Mo isotope data at that time.

    “Those same authors also suggested that the peak in Se at ~3.0 Ga in the pyrite record is consistent with Cr and Mo isotope data at that time”

    From Trace elements at the intersection of marine biological and geochemical evolution (2016) · cites this paper as Crowe et al., 2013

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Authors
Crowe, S. A., Døssing, L. N., Beukes, N. J., Bau, M., Kruger, S. J., Frei, R., & Canfield, D. E.
Affiliations
  • University of British Columbia (CA)
  • University of Copenhagen (DK)
  • University of Johannesburg (ZA)
  • Constructor University (DE)
  • University of Southern Denmark (DK)
Corresponding author
Crowe, Sean A.
Venue
Nature
Published
2013-09
Volume
501
Issue
7468
Pages
535-538
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2073562922
Cited by
640
References
29
Citations by year
2026: 20 · 2025: 32 · 2024: 28 · 2023: 34 · 2022: 38 · 2021: 65 · 2020: 51 · 2019: 67 · 2018: 66 · 2017: 64 · 2016: 64 · 2015: 60 · 2014: 48 · 2013: 3
FWCI
39.52
Type
journal article
Language
en
Open access
closed
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • University of Southern Denmark Research Portal (University of Southern Denmark) (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (submittedVersion)
Topics
  • Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Stratigraphy of Fossils
  • Physical Sciences › Earth and Planetary Sciences › Geophysics › Geological and Geochemical Analysis
  • Physical Sciences › Earth and Planetary Sciences › Geochemistry and Petrology › Geochemistry and Elemental Analysis
Keywords
atmospheric oxygenation, Great Oxidation Event, chromium isotopes, redox-sensitive metals, oxidative weathering, Pongola Supergroup, early Earth atmosphere, Precambrian
MeSH terms
Cyanobacteria, Atmosphere, Chromium Isotopes, Biological Evolution, Iron, Oxidation-Reduction, Oxygen, Photosynthesis, South Africa, Earth, Planet, Geologic Sediments, History, Ancient

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