Cited by 208Paleontology and Stratigraphy of FossilsGeological and Geochemical AnalysisGeology and Paleoclimatology Research

Cryogenian Glaciation and the Onset of Carbon-Isotope Decoupling

Swanson-Hysell, Nicholas L., Rose, Catherine V., Calmet, Claire C., Halverson, Galen P., Hurtgen, Matthew T., Maloof, Adam C.·2010·Science

Abstract

A Dip in the Carbon Pool: Before the diversity of animal life exploded in the Cambrian, Earth's carbon cycle was apparently strongly altered by multiple glaciation events across the globe. Carbon isotope signatures from rocks in Australia measured by Swanson-Hysell et al. (p. 608 ) suggest that an organic carbon reservoir formed between two global glaciations, or “snowball Earth,” several hundred million years earlier than expected. Anoxic sulfate-limited waters, caused by increased river outputs from melting glaciers, may have prohibited bacterial respiration, allowing for the accumulation of organic carbon. As organic carbon levels dropped, CO 2 was released, allowing the atmosphere to warm, preventing further glaciations, and permitting the eventual accumulation of oxygen in the oceans that led to the Cambrian explosion.

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Crossref · 10.1126/science.1184508

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Authors
Swanson-Hysell, N. L., Rose, C. V., Calmet, C. C., Halverson, G. P., Hurtgen, M. T., & Maloof, A. C.
Affiliations
  • Department of Geosciences, Princeton University, Princeton, NJ 08544, USA.
  • Princeton University (US)
  • McGill University (CA)
  • Northwestern University (US)
Corresponding author
Maloof, Adam C.
Venue
Science
Published
2010-04-30
Volume
328
Issue
5978
Pages
608-611
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2084911169
Cited by
208
References
25
Citations by year
2026: 6 · 2025: 10 · 2024: 10 · 2023: 24 · 2022: 17 · 2021: 13 · 2020: 13 · 2019: 17 · 2018: 12 · 2017: 10 · 2016: 12 · 2015: 5 · 2014: 14 · 2013: 10 · 2012: 15
FWCI
10.00
Type
journal article
Language
en
Open access
closed
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
  • Adelaide Research & Scholarship (AR&S) (University of Adelaide) (submittedVersion)
Topics
  • Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Stratigraphy of Fossils
  • Physical Sciences › Earth and Planetary Sciences › Geophysics › Geological and Geochemical Analysis
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Geology and Paleoclimatology Research
Keywords
Cryogenian glaciation, Sturtian glaciation, Marinoan glaciation, organic carbon pools, carbonate carbon isotopes, organic carbon isotopes, paleogeography, global glaciation

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