Cited by 167Paleontology and Stratigraphy of FossilsOrigins and Evolution of LifeGeological and Geochemical Analysis

Late Archean molecular fossils from the Transvaal Supergroup record the antiquity of microbial diversity and aerobiosis

Waldbauer, Jacob R., Sherman, Laura S., Sumner, Dawn Y., Summons, Roger E.·2009·Precambrian Research

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Crossref · 10.1016/j.precamres.2008.10.011

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101 of 101 references verified0 citation errors · 0 not checkable

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  • Extractable acyclic isoprenoids and a homologous series of n-alkanes (C10-23+) were below detection limits or cumulative laboratory blank concentrations in the AIDP samples.

    “Moreover, extractable acyclic isoprenoids and a homologous series of extractable n-alkanes (C 10-23+ ), both of which were prominent in previous Archean biomarker studies (1-3, 5, 7, 22, 23), were also below detection limits or cumulative laboratory blank concentrations in the AIDP samples.”

    From Reappraisal of hydrocarbon biomarkers in Archean rocks (2015) · cites this paper as [7]

  • Hopane and sterane concentrations in the RHDH2A sample are more compatible with concentrations reported in earlier Archean biomarker studies of the Mount Bruce and Transvaal supergroups.

    “Furthermore, the hopane and sterane concentrations measured in our analysis of the RHDH2A sample are more compatible with the concentrations reported in earlier Archean biomarker studies of the Mount Bruce and Transvaal supergroups (7,21)”

    From Reappraisal of hydrocarbon biomarkers in Archean rocks (2015) · cites this paper as [7]

  • Detectable hopane and sterane concentrations in the AIDP samples were about one to three orders of magnitude lower than those reported in earlier Archean biomarker studies.

    “For comparison, the hopane and sterane concentrations that were detectable and measured in the AIDP samples are approximately one to three orders of magnitude less than the hopane and sterane concentrations reported in earlier Archean biomarker studies (7,21).”

    From Reappraisal of hydrocarbon biomarkers in Archean rocks (2015) · cites this paper as [7]

  • Sawing can add significant but variable hydrocarbon contaminants to the substrate, yet cumulative blanks in previous studies did not record the contribution from sawing.

    “the analyses of the saw blade (before it was heat treated) and the sawed surfaces of the RHDH2A quarter-core highlight that sawing can contribute significant but variable hydrocarbon contaminants to the substrate, yet the cumulative blanks reported in previous studies did not record the hydrocarbon contribution from sawing (1,4,6,7).”

    From Reappraisal of hydrocarbon biomarkers in Archean rocks (2015) · cites this paper as [7]

  • According to H/C ratios and other thermal history indicators, the metamorphic grades of AIDP-2 and AIDP-3 are similar to or lower than those of rocks from which biomarkers were previously reported.

    “According to currently available H/C ratios and other indicators of thermal history, the metamorphic grades of AIDP-2 and AIDP-3 are similar to (1-4, 6, 7, 15, 21, 26) or lower than (5,22,23) the metamorphic grades of the rocks from which biomarkers have been previously reported.”

    From Reappraisal of hydrocarbon biomarkers in Archean rocks (2015) · cites this paper as [7]

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Authors
Waldbauer, J. R., Sherman, L. S., Sumner, D. Y., & Summons, R. E.
Affiliations
  • Massachusetts Institute of Technology (US)
  • University of California, Davis (US)
Corresponding author
Summons, Roger E.
Venue
Precambrian Research
Publisher
Elsevier BV
Published
2009-03
Volume
169
Issue
1-4
Pages
28-47
ISSN
0301-9268 (ISSN-L)
OpenAlex
W1967509775
Cited by
167
References
102
Citations by year
2025: 3 · 2024: 1 · 2023: 2 · 2022: 4 · 2021: 7 · 2020: 5 · 2019: 7 · 2018: 7 · 2017: 9 · 2016: 11 · 2015: 12 · 2014: 12 · 2013: 18 · 2012: 21
FWCI
11.92
Type
journal article
Language
en
Open access
closed
Locations
Precambrian Research (publishedVersion)
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 › Geophysics › Geological and Geochemical Analysis
Keywords
Late Archean, molecular fossils, Transvaal Supergroup, microbial diversity, hopanes, steranes, cyanobacteria, methanotrophic bacteria, oxygenic photosynthesis, eukaryotic origin, origin of cellular life, unconformity

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