Cited by 67Geological and Geochemical AnalysisPaleontology and Stratigraphy of FossilsGeochemistry and Elemental Analysis

3.5-Ga hydrothermal fields and diamictites in the Barberton Greenstone Belt—Paleoarchean crust in cold environments

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de Wit, Maarten J., Furnes, Harald·2016·Science Advances

Abstract

Data on 3.5-Ga volcanic and sedimentary rocks of the Barberton Greenstone Belt suggest formation in cold environments.

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Registry

Crossref · 10.1126/sciadv.1500368

Cites

70 of 70 references verified0 citation errors · 0 not checkable

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Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Glacial rocks are reported from 3.5, 2.9, and 2.7 Ga ago.

    “Glacial rocks are reported from 3.5, 2.9, and 2.7 Ga ago.”

    From The Archean atmosphere (2020) · cites this paper as [55]

    The Conclusion (page unavailable) reports possible glaciogenic deposits and local glacial conditions at approximately 3.4–3.5 Ga. The passages found for 2.9 and 2.7 Ga do not report glacial rocks at either age, so the source supports only the 3.5-Ga part of the claim. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • Older cherts and carbonates have nonprimary δ18O from high alteration temperatures or hydrothermal fluids.

    “(ii) Older cherts and carbonates have nonprimary δ18O from high alteration temperatures or hydrothermal fluids (55, 231).”

    From The Archean atmosphere (2020) · cites this paper as [55]

    The Introduction says Barberton cherts once treated as primary seawater precipitates were subsequently found to form predominantly through secondary silicification. The Results and Discussion link their δ18O signatures to hydrothermal fluids and silica-water interaction temperatures. The paper does not establish the same claim for carbonates or for older cherts generally. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • The oldest glacial rocks, from the Barberton of South Africa, include clasts in finely laminated sediments, interpreted as dropstones, found below diamictites.

    “The oldest, from the Barberton of South Africa, includes clasts in finely laminated sediments, interpreted as dropstones, found below diamictites (55).”

    From The Archean atmosphere (2020) · cites this paper as [55]

    The Conclusion calls the Barberton deposits the world’s oldest recorded glacial deposits. The Results and Discussion describes clasts in finely laminated sediments that the authors interpret as glaciogenic dropstones. But it says those sediments are locally interbedded with diamictites, while the Fig. 6 caption shows an example overlying diamictite—not below it as claimed. (LLM, conf=0.88)

    Experimental — accuracy not yet measured

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Cites

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Research works printed but not linked: 1

  1. [36]J. C. Alt, Subsea processes in mid-ocean ridge hydrothermal systems, in Seafloor Hydrothermal Systems: Physical, Chemical, Biological, and Geological Interactions, S. E. Humphris, R. A. Zierenberg, L. S. Mullineaux, R. E. Thomson, Eds. (American Geophysical Union, Washington, DC, 1995), vol. 91, pp. 85–114.

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Authors
de Wit, M. J., & Furnes, H.
Affiliations
  • AEON and Earth Stewardship Science Research Institute, Nelson Mandela Metropolitan University 7701, Port Elizabeth 6031, South Africa.
  • University of Bergen (NO)
Corresponding author
Furnes, Harald
Venue
Science Advances
Published
2016-02-05
Volume
2
Issue
2
Pages
e1500368-e1500368
ISSN
2375-2548 (ISSN-L)
OpenAlex
W2289163202
Cited by
67
References
70
Citations by year
2026: 1 · 2025: 7 · 2024: 7 · 2023: 2 · 2022: 3 · 2021: 8 · 2020: 10 · 2019: 9 · 2018: 7 · 2017: 8 · 2016: 3
FWCI
8.87
Type
journal article
Language
en
Open access
Licence
cc-by-nc
Locations
  • Science Advances (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • Nelson Mandela University Research Repository (submittedVersion, cc-by-nc)
Funders
  • National Research Foundation (NRF) of South Africa (ID0EDZBI4950)
  • Norwegian Research Council (ID0EJDCI4951)
Topics
  • Physical Sciences › Earth and Planetary Sciences › Geophysics › Geological and Geochemical Analysis
  • Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Stratigraphy of Fossils
  • Physical Sciences › Earth and Planetary Sciences › Geochemistry and Petrology › Geochemistry and Elemental Analysis
Keywords
hydrothermal fields, diamictite, Barberton Greenstone Belt, glacial diamictites, volcanic rock, chert, Precambrian tectonics

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