Cited by 129Paleontology and Stratigraphy of FossilsEarth Systems and Cosmic EvolutionGeological and Geochemical Analysis

Constraints on Paleoproterozoic atmospheric oxygen levels

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Bellefroid, Eric J., Hood, Ashleigh v. S., Hoffman, Paul F., Thomas, Matthew D., Reinhard, Christopher T., Planavsky, Noah J.·2018·Proceedings of the National Academy of Sciences

Abstract

Significance: Earth’s protracted oxygenation significantly transformed global biological and geochemical cycles. In particular, the rise of atmospheric oxygen above trace levels was an essential prerequisite for the development of animals. However, quantifying atmospheric oxygen levels in Earth’s middle age remains a daunting challenge. Here we use a combination of sedimentology, geochemical constraints, and oceanographic modeling to provide a quantitative estimate of Precambrian atmospheric oxygen. We provide evidence that atmospheric oxygen levels decreased significantly after the “Great Oxygenation Event” in Earth’s early history, to levels that would have negatively impacted the ecology of the earliest complex organisms.

Integrity signals

Registry

Crossref · 10.1073/pnas.1806216115

Cites

72 of 72 references verified0 citation errors · 0 not checkable

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  • There is evidence from rare-earth element systematics for anoxic conditions in very shallow water, likely greater than 50 m.

    “There is also evidence from rare-earth element systematics for anoxic conditions in very shallow water (likely >50 m) (Bellefroid et al. 2018).”

    From The History of Ocean Oxygenation (2022) · cites this paper as Bellefroid et al. 2018

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Authors
Bellefroid, E. J., Hood, A. V. S., Hoffman, P. F., Thomas, M. D., Reinhard, C. T., & Planavsky, N. J.
Affiliations
  • Yale University (US)
  • University of Victoria (CA)
  • University of California, Riverside (US)
Venue
Proceedings of the National Academy of Sciences
Published
2018-07-23
Volume
115
Issue
32
Pages
8104-8109
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2884809501
Cited by
129
References
72
Citations by year
2026: 9 · 2025: 17 · 2024: 18 · 2023: 9 · 2022: 27 · 2021: 19 · 2020: 17 · 2019: 9 · 2018: 3
FWCI
8.83
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
Natural Sciences and Engineering Research Council of Canada
Topics
  • Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Stratigraphy of Fossils
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Earth Systems and Cosmic Evolution
  • Physical Sciences › Earth and Planetary Sciences › Geophysics › Geological and Geochemical Analysis
Keywords
Paleoproterozoic, atmospheric oxygen, Great Oxidation Event, oxygenation of Earth, Precambrian atmosphere, early animal evolution, ocean redox conditions, Precambrian geochemistry, ocean modeling

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