Model of progressive ventilation of the late Precambrian-early Paleozoic ocean
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Protracted anoxia fundamentally challenged the previous assumption that the full ocean was O2-rich during the boring billion based on the disappearance of anoxia-dependent iron formations at ~1.8 Ga.
“First and foremost, protracted anoxia fundamentally challenged the previous assumption that the full ocean was O2-rich during the boring billion (Wilde, 1987; Canfield, 1998) based on the disappearance of anoxia-dependent iron formations at ∼1.8 Ga (Fe is soluble only in O2-free waters).”
From Oxygenation, Life, and the Planetary System during Earth's Middle History: An Overview (2021) · cites this paper as Wilde, 1987
The model reports persistent anoxic waters during progressive ocean ventilation (p. 1; proposed evolutionary scenario, p. 14), supporting the claim's broad point that the ocean was not uniformly oxygen-rich. But its General Assumptions (p. 2) explicitly assign no absolute dates to the model's steps, and the passages do not link anoxia to the disappearance of iron formations at ~1.8 Ga or describe the earlier assumption attributed to that disappearance. (LLM, conf=0.86)
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Research works printed but not linked: 13
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- Authors
- Wilde, P.
- Corresponding author
- Wilde, P.
- Venue
- American Journal of Science
- Publisher
- American Journal of Science (AJS)
- Published
- 1987-05-01
- Volume
- 287
- Issue
- 5
- Pages
- 442-459
- ISSN
- 0002-9599 (ISSN-L)
- OpenAlex
- W2328634835
- Cited by
- 37
- References
- 0
- Citations by year
- 2023: 2 · 2022: 1 · 2021: 3 · 2018: 1 · 2016: 1 · 2015: 1 · 2014: 1 · 2013: 4 · 2012: 1
- FWCI
- 2.15
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- American Journal of Science (publishedVersion)
- Topics
- Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Stratigraphy of Fossils
- Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Geology and Paleoclimatology Research
- Physical Sciences › Earth and Planetary Sciences › Geophysics › Geological and Geochemical Analysis
- Keywords
- ocean ventilation, ocean circulation, Late Precambrian, Lower Paleozoic, paleoceanography, redox conditions, atmospheric oxygenation
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