Cited by 39Paleontology and Stratigraphy of FossilsAstro and Planetary ScienceGeology and Paleoclimatology Research

Atmospheric CO 2 levels from 2.7 billion years ago inferred from micrometeorite oxidation

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Lehmer, O. R., Catling, D. C., Buick, R., Brownlee, D. E., Newport, S.·2020·Science Advances

Abstract

Iron-rich micrometeorites from a 2.7 billion-year-old limestone could constrain atmospheric CO 2 levels on the early Earth.

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Registry

Crossref · 10.1126/sciadv.aay4644

Cites

38 of 38 references verified0 citation errors · 0 not checkable

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  • High CO2 levels (perhaps >70%) oxidized 2.7-Ga-old iron-nickel micrometeorites, providing an alternative to near-modern O2 above ~75 km.

    “However, given copious evidence for an anoxic Archean atmosphere, an alternative explanation is that high CO2 levels (perhaps >70%) oxidized the micrometeorites (85).”

    From The Archean atmosphere (2020) · cites this paper as [85]

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Cites

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Research works printed but not linked: 3

  1. [12]J. Farquhar, A. L. Zerkle, A. Bekker, Reference module in Earth system and environmental sciences, in Treatise on Geochemistry, H. Holland, K. Turekian, Eds. (Elsevier Ltd., ed. 2, 2014), pp. 91–138.
  2. [37]M. W. Chase, NIST-JANAF Thermochemical Tables, Fourth Edition (Journal of Physical and Chememical Reference Data Monographs, ed. 4, 1998).
  3. [39]J. Wang, A. M. Davis, R. N. Clayton, T. K. Mayeda, Kinetic isotope fractionation during the evaporation of iron oxide from the liquid state (Lunar and Planetary Institute, 1994), pp. 1459–1460.

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Authors
Lehmer, O. R., Catling, D. C., Buick, R., Brownlee, D. E., & Newport, S.
Affiliations
  • Ames Research Center (US)
  • University of Washington (US)
Corresponding author
Lehmer, O. R.
Venue
Science Advances
Published
2020-01-24
Volume
6
Issue
4
Pages
eaay4644-eaay4644
ISSN
2375-2548 (ISSN-L)
OpenAlex
W3002928623
Cited by
39
References
38
Citations by year
2026: 6 · 2025: 6 · 2024: 3 · 2023: 9 · 2022: 5 · 2021: 6 · 2020: 4
FWCI
3.44
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Science Advances (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • NASA Astrobiology Institute (80NSSC18K0829)
  • NASA Exobiology grant (NNX15AL23G)
  • Simons Collaboration (51170)
Topics
  • Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Stratigraphy of Fossils
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astro and Planetary Science
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Geology and Paleoclimatology Research
Keywords
atmospheric CO2, Archean atmosphere, micrometeorites, early Earth climate, faint young Sun

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