Cited by 85Paleontology and Stratigraphy of FossilsGeochemistry and Elemental AnalysisGeological formations and processes

A long-term record of early to mid-Paleozoic marine redox change

Open access
Sperling, Erik A., Melchin, Michael J., Fraser, Tiffani, Stockey, Richard G., Farrell, Una C., Bhajan, Liam, Brunoir, Tessa N., Cole, Devon B. +12 more·2021·Science Advances

Abstract

Early Paleozoic bottom waters were mainly ferruginous, like the Neoproterozoic, with a shift to increased euxinia in the Devonian.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1126/sciadv.abf4382

Cites

130 of 130 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

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

  • There was a shift in samples deposited under anoxic bottom waters from being dominated by ferruginous conditions to being dominated by euxinic conditions.

    “There also appear to be changes in samples deposited under anoxic bottom waters, with a shift from samples being dominated by ferruginous conditions to being dominated by euxinic conditions (Sperling et al. 2021).”

    From The History of Ocean Oxygenation (2022) · cites this paper as Sperling et al. 2021

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

1 of the 131 references couldn’t be matched to a known paper.

Research works printed but not linked: 6

  1. [64]M. W. Guidry, F. T. MacKenzie, Apatite weathering and the Phanerozoic phosphorus cycle. Geology 28, 631 (2000).
  2. [82]T. A. Fraser, T. L. Allen, L. S. Lane, J. C. Reyes, Shale gas potential of Devonian shale in north Yukon: Results from a diamond drillhole study in western Richardson Mountains, in Yukon Exploration and Geology 2011 (Yukon Geological Survey, 2012), pp. 45–74.
  3. [95]C. P. Hughes, C. J. Jenkins, R. B. Rickards, in Geological Excursions in Dyfed, South-West Wales (National Museum of Wales, 1982), pp. 51–63.
  4. [97]D. Lehmann, C. E. Brett, R. Cole, G. Baird, Distal sedimentation in a peripheral foreland basin: Ordovician black shales and associated flysch of the western Taconic foreland, New York State and Ontario. GSA Bulletin 107, 708– 724 (1995).
  5. [108]M. Quinby-Hunt, P. Wilde, C. Orth, W. Berry, in Metalliferous Black Shales and Related Ore Deposits (US Geological Survey Circular, 1989), vol. 1037, pp. 8–15.
  6. [129]A. C. Lenz, A. E. H. Pedder, Lower and Middle Paleozoic Sediments and Paleontology of Royal Creek and Peel River, Yukon, and Powell Creek, N.W.T. (International Geological Congress Guidebook, 1972), pp. 1–43.

Cited by

Sorted by citations

Authors
Sperling, E. A., Melchin, M. J., Fraser, T., Stockey, R. G., Farrell, U. C., Bhajan, L., Brunoir, T. N., Cole, D. B., Gill, B. C., Lenz, A., Loydell, D. K., Malinowski, J., Miller, A. J., Plaza-Torres, S., Bock, B., Rooney, A. D., Tecklenburg, S. A., Vogel, J. M., Planavsky, N. J., & Strauss, J. V.
Affiliations
  • Stanford University (US)
  • St. Francis Xavier University (CA)
  • Yukon Geological Survey (CA)
  • Department of Geological Sciences, Stanford University, Stanford, CA, USA.
  • Georgia Institute of Technology (US)
  • Virginia Tech (US)
  • Western University (CA)
  • University of Portsmouth (GB)
  • Dartmouth College (US)
  • Department of Geology, University of Puerto Rico, Mayagüez, Puerto Rico.
  • Vanderbilt University (US)
  • Yale University (US)
Corresponding author
  • Sperling, Erik A.
  • Strauss, Justin V.
Venue
Science Advances
Published
2021-07-09
Volume
7
Issue
28
ISSN
2375-2548 (ISSN-L)
OpenAlex
W3179371683
Cited by
85
References
131
Citations by year
2026: 12 · 2025: 27 · 2024: 14 · 2023: 11 · 2022: 16 · 2021: 5
FWCI
8.64
Type
journal article
Language
en
Open access
Locations
  • Science Advances (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • ePrints Soton (University of Southampton) (acceptedVersion)
  • VTechWorks (Virginia Tech) (submittedVersion, cc-by-nc)
Funders
  • National Science Foundation (EAR-1922966, EAS-1624131)
  • Alfred P. Sloan Foundation (Ocean Sciences Fellowship)
  • Agouron Institute
  • Natural Sciences and Engineering Research Council of Canada
  • Stanford Program on Deep-water Depositional Systems
Topics
  • 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
  • Physical Sciences › Earth and Planetary Sciences › Earth-Surface Processes › Geological formations and processes
Keywords
marine redox conditions, euxinic conditions, Yukon, iron speciation, Cambrian, Devonian, deep-water anoxia

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review