Cited by 103Paleontology and Stratigraphy of FossilsGeology and Paleoclimatology ResearchEarth Systems and Cosmic Evolution

Limited role for methane in the mid-Proterozoic greenhouse

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Olson, Stephanie L., Reinhard, Christopher T., Lyons, Timothy W.·2016·Proceedings of the National Academy of Sciences

Abstract

Significance Proterozoic climate dynamics, including both remarkable climate stability during the mid-Proterozoic and extreme low-latitude glaciation in the Neoproterozoic, must be understood in the framework of evolving oxidant reservoirs throughout the Precambrian. We present Earth system model simulations showing that recent constraints on atmospheric oxygen and oceanic sulfate during Proterozoic time have profound implications for marine methane cycling and the accumulation of methane in the atmosphere. Our model results challenge the paradigm of persistently elevated methane during the Precambrian, thus extending the relevance of the faint young Sun paradox throughout the Proterozoic. In light of the possibility of low methane during the mid-Proterozoic, we also suggest a conceptual model for the relationship between oxygenation, methane, and Neoproterozoic Snowball Earth events.

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Crossref · 10.1073/pnas.1608549113

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19 of 19 references verified0 citation errors · 0 not checkable

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  • Methane may have been much lower than previously imagined during the boring billion due to muted production and preservation in the oceans and photochemical instability in the atmosphere.

    “Alternatively, methane may have mostly been much lower than previously imagined during the boring billion due to muted production and preservation in the oceans and photochemical instability in the atmosphere (Olson et al., 2016).”

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Authors
Olson, S. L., Reinhard, C. T., & Lyons, T. W.
Affiliations
University of California, Riverside (US)
Venue
Proceedings of the National Academy of Sciences
Published
2016-09-26
Volume
113
Issue
41
Pages
11447-11452
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2526157218
Cited by
103
References
19
Citations by year
2026: 3 · 2025: 9 · 2024: 7 · 2023: 9 · 2022: 13 · 2021: 12 · 2020: 11 · 2019: 14 · 2018: 13 · 2017: 10 · 2015: 1
FWCI
10.25
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Aeronautics and Space Administration (NNA15BB03A)
Topics
  • Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Stratigraphy of Fossils
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Geology and Paleoclimatology Research
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Earth Systems and Cosmic Evolution
Keywords
methane, atmospheric oxygen, faint young Sun paradox, Neoproterozoic glaciation, Snowball Earth, Earth system modeling

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