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Constraints on Paleoproterozoic atmospheric oxygen levels
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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.
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“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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Johnson, C. M., Beard, B. L., & Weyer, S. (2020) · Advances in isotope geochemistry · doi:10.1007/978-3-030-33828-2_6 · Cited by 4
Evidence of transient oxygenation in the Mesoproterozoic ocean from the Yanshan Basin, North China
Chen, X., Li, M., Zong, K., Liu, Y., Zhang, T., & Shen, Y. (2022) · Precambrian Research · doi:10.1016/j.precamres.2022.106880 · Cited by 4
Venugopal, A., Tripathy, G. R., Goswami, V., Khan, T., & Ackerman, L. (2025) · Geochimica et Cosmochimica Acta · doi:10.1016/j.gca.2025.09.013 · Cited by 3
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Hu, J., Jin, W., Tian, Y., Deng, X., Li, S., Kong, L., Santosh, M., Liu, Y., Wang, J., Xu, D., et al. (2023) · Precambrian Research · doi:10.1016/j.precamres.2023.107043 · Cited by 3
A PERSISTENTLY LOW LEVEL OF ATMOSPHERIC OXYGEN IN EARTH’S MIDDLE AGE
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Metadata
- 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)
- ORCID
- Venue
- Proceedings of the National Academy of Sciences
- Publisher
- National Academy of Sciences
- Published
- 2018-07-23
- Volume
- 115
- Issue
- 32
- Pages
- 8104-8109
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- PMC
- PMC6094116
- 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
- green
- europepmc.org
- 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 › Environmental Science › Global and Planetary Change › Earth Systems and Cosmic Evolution
- Physical Sciences › Earth and Planetary Sciences › Geochemistry and Petrology › 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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