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Proterozoic oxygen rise linked to shifting balance between seafloor and terrestrial weathering
Significance We investigate the balance between two mechanisms that remove carbon from the atmosphere and oceans over long timescales—weathering of terrestrial silicates and alteration of the oceanExpand
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Earliest land plants created modern levels of atmospheric oxygen
Significance The rise of atmospheric oxygen over Earth’s history has received much recent interdisciplinary attention. However, the puzzle of when and how atmospheric oxygen reached modern levelsExpand
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Timing of Neoproterozoic glaciations linked to transport-limited global weathering
The Neoproterozoic Snowball Earth glaciations were separated by tens of millions of years, although models suggest glacial inception should occur within millions. Numerical modelling suggests thatExpand
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COPSE reloaded: An improved model of biogeochemical cycling over Phanerozoic time
Abstract The ‘COPSE’ (Carbon, Oxygen, Phosphorus, Sulphur and Evolution) biogeochemical model predicts the coupled histories and controls on atmospheric O2, CO2 and ocean composition over PhanerozoicExpand
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Changing tectonic controls on the long‐term carbon cycle from Mesozoic to present
Tectonic drivers of degassing and weathering processes are key long-term controls on atmospheric CO2. However, there is considerable debate over the changing relative importance of different carbonExpand
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Atmospheric oxygen regulation at low Proterozoic levels by incomplete oxidative weathering of sedimentary organic carbon
It is unclear why atmospheric oxygen remained trapped at low levels for more than 1.5 billion years following the Paleoproterozoic Great Oxidation Event. Here, we use models for erosion, weatheringExpand
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Stepwise oxygenation of the Paleozoic atmosphere
Oxygen is essential for animal life, and while geochemical proxies have been instrumental in determining the broad evolutionary history of oxygen on Earth, much of our insight into Phanerozoic oxygenExpand
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Tectonic controls on the long-term carbon isotope mass balance
Significance The carbon isotope record has played a major role in reconstructing the oxygen and carbon dioxide content of the ancient atmosphere. However, known oxygenation events are not alwaysExpand
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Modelling the long-term carbon cycle, atmospheric CO2, and Earth surface temperature from late Neoproterozoic to present day
Abstract Over geological timescales, CO 2 levels are determined by the operation of the long term carbon cycle, and it is generally thought that changes in atmospheric CO 2 concentration haveExpand
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Middle Permian organic carbon isotope stratigraphy and the origin of the Kamura Event
Abstract Large carbon cycle perturbations associated with the Middle Permian (Capitanian) mass extinction have been widely reported, but their causes and timing are still in dispute. Low resolutionExpand
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