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Late Precambrian Oxygenation; Inception of the Clay Mineral Factory

Kennedy, Martin, Droser, Mary, Mayer, Lawrence M., Pevear, David, Mrofka, David·2006·Science

Abstract

An enigmatic stepwise increase in oxygen in the late Precambrian is widely considered a prerequisite for the expansion of animal life. Accumulation of oxygen requires organic matter burial in sediments, which is largely controlled by the sheltering or preservational effects of detrital clay minerals in modern marine continental margin depocenters. Here, we show mineralogical and geochemical evidence for an increase in clay mineral deposition in the Neoproterozoic that immediately predated the first metazoans. Today most clay minerals originate in biologically active soils, so initial expansion of a primitive land biota would greatly enhance production of pedogenic clay minerals (the “clay mineral factory”), leading to increased marine burial of organic carbon via mineral surface preservation.

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Research works printed but not linked: 30

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Metadata

Authors
Kennedy, M., Droser, M., Mayer, L. M., Pevear, D., & Mrofka, D.
Venue
Science
Published
2006-03-10
Volume
311
Issue
5766
Pages
1446-1449
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W1987182523
Cited by
287
References
6
FWCI
13.00
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Late Precambrian Oxygenation; Inception of the Clay Mineral Factory. https://app.cochat.ai/papers/10.1126/science.1118929
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Kennedy, M., Droser, M., Mayer, L. M., Pevear, D., & Mrofka, D. (2006). Late Precambrian Oxygenation; Inception of the Clay Mineral Factory. Science. https://doi.org/10.1126/science.1118929

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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