Cited by 76Paleontology and Stratigraphy of FossilsOrigins and Evolution of LifeGeochemistry and Elemental Analysis

Metabolically diverse primordial microbial communities in Earth’s oldest seafloor-hydrothermal jasper

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Papineau, Dominic, She, Zhenbing, Dodd, Matthew S., Iacoviello, Francesco, Slack, John F., Hauri, Erik, Shearing, Paul, Little, Crispin T. S.·2022·Science Advances

Abstract

The oldest putative fossils occur as hematite filaments and tubes in jasper-carbonate banded iron formations from the 4280- to 3750-Ma Nuvvuagittuq Supracrustal Belt, Québec. If biological in origin, these filaments might have affinities with modern descendants; however, if abiotic, they could indicate complex prebiotic forms on early Earth. Here, we report images of centimeter-size, autochthonous hematite filaments that are pectinate-branching, parallel-aligned, undulated, and containing Fe 2+ -oxides. These microstructures are considered microfossils because of their mineral associations and resemblance to younger microfossils, modern Fe-bacteria from hydrothermal environments, and the experimental products of heated Fe-oxidizing bacteria. Additional clusters of irregular hematite ellipsoids could reflect abiotic processes of silicification, producing similar structures and thus yielding an uncertain origin. Millimeter-sized chalcopyrite grains within the jasper-carbonate rocks have 34 S- and 33 S-enrichments consistent with microbial S-disproportionation and an O 2 -poor atmosphere. Collectively, the observations suggest a diverse microbial ecosystem on the primordial Earth that may be common on other planetary bodies, including Mars.

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Crossref · 10.1126/sciadv.abm2296

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  1. H. Ohmoto M. B. Goldhaber Geochemistry of hydrothermal ore deposits in Geochemistry of Hydrothermal Ore Deposits H. L. Barnes Ed. (Wiley ed. 3 1997).

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Authors
Papineau, D., She, Z., Dodd, M. S., Iacoviello, F., Slack, J. F., Hauri, E., Shearing, P., & Little, C. T. S.
Affiliations
  • London Centre for Nanotechnology (GB)
  • China University of Geosciences (CN)
  • University College London (GB)
  • United States Geological Survey (US)
  • Carnegie Institution for Science (US)
  • University of Leeds (GB)
Corresponding author
  • Papineau, Dominic
  • Hauri, Erik
Venue
Science Advances
Published
2022-04-15
Volume
8
Issue
15
Pages
eabm2296-eabm2296
ISSN
2375-2548 (ISSN-L)
OpenAlex
W4224023717
Cited by
76
References
107
Citations by year
2026: 6 · 2025: 13 · 2024: 16 · 2023: 30 · 2022: 11
FWCI
12.67
Type
journal article
Language
en
Open access
Licence
cc-by-nc
Locations
  • Science Advances (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • White Rose Research Online (University of Leeds, The University of Sheffield, University of York) (acceptedVersion)
  • PubMed Central (submittedVersion, cc-by-nc)
  • UCL Discovery (University College London) (submittedVersion)
Funders
National Natural Science Foundation of China
Topics
  • Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Stratigraphy of Fossils
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Origins and Evolution of Life
  • Physical Sciences › Earth and Planetary Sciences › Geochemistry and Petrology › Geochemistry and Elemental Analysis
Keywords
banded iron formations, microfossils, iron-oxidizing bacteria, silicification, Mars habitability

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