ArticleProceedings of the National Academy of Sciences of the United States of America2022
Marine anoxia linked to abrupt global warming during Earth's penultimate icehouse.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed, 72 citations in OpenAlex.
- Cooling-induced intensification of ocean anoxia in the mid-Paleozoic.Science advances · 2026Article
- Synchronizing climate-carbon cycle heartbeats in the Phanerozoic vegetated icehouses.Nature communications · 2025Article
- Tectonic-astronomical interactions in shaping late Paleozoic climate and organic carbon burial.Nature communications · 2025Article
- Repeated occurrences of marine anoxia under high atmospheric OProceedings of the National Academy of Sciences of the United States of America · 2025Article
- Global cooling drove diversification and warming caused extinction among Carboniferous-Permian fusuline foraminifera.Science advances · 2025Article
- Microfacies Characteristics of Late Pennsylvanian Cyclothems on the Carbonate Platform Margin in Guizhou, South China.Life (Basel, Switzerland) · 2024Article
- Lithium isotopic evidence for enhanced reverse weathering during the Early Triassic warm period.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Acceleration of phosphorus weathering under warm climates.Science advances · 2024Article
- Controlling factors for the global meridional overturning circulation: A lesson from the Paleozoic.Science advances · 2024Article
- Plate tectonics controls ocean oxygen levels.Nature · 2022Article
- Marine siliceous ecosystem decline led to sustained anomalous Early Triassic warmth.Nature communications · 2022Article
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Authors and funding
17 authors at 9 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Piecing together the history of carbon (C) perturbation events throughout Earth’s history has provided key insights into how the Earth system responds to abrupt warming. Previous studies, however, focused on short-term warming events that were superimposed on longer-term greenhouse climate states. Here, we present an integrated proxy (C and uranium [U] isotopes and paleo CO2) and multicomponent modeling approach to investigate an abrupt C perturbation and global warming event (∼304 Ma) that occurred during a paleo-glacial state. We report pronounced negative C and U isotopic excursions coincident with a doubling of atmospheric CO2 partial pressure and a biodiversity nadir. The isotopic excursions can be linked to an injection of ∼9,000 Gt of organic matter–derived C over ∼300 kyr and to near 20% of areal extent of seafloor anoxia. Earth system modeling indicates that widespread anoxic conditions can be linked to enhanced thermocline stratification and increased nutrient fluxes during this global warming within an icehouse.
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