A Framework for Understanding Whole-Earth Carbon Cycling

  title={A Framework for Understanding Whole-Earth Carbon Cycling},
  author={Cin-Ty A. Lee and Hehe Jiang and Rajdeep Dasgupta and Mark A. Torres},
  journal={Deep Carbon},
increasing the sensitivity of the global weathering feedback (states a to b), which buffers the rise of pCO 2 . After magmatism ends, physical and chemical weathering persist, driving pCO 2 to low levels. Magmatic orogens can potentially drive greenhouses, but are followed by global cooling due to protracted weathering. 
Earth's Outgassing and Climatic Transitions: The Slow Burn Towards Environmental “Catastrophes”?
On multimillion-year timescales, outgassing from the Earth's interior provides the principal source of CO2 to the ocean–atmosphere system, which plays a fundamental role in shaping the Earth's
Deep Carbon Cycling Over the Past 200 Million Years: A Review of Fluxes in Different Tectonic Settings
Carbon is a key control on the surface chemistry and climate of Earth. Significant volumes of carbon are input to the oceans and atmosphere from deep Earth in the form of degassed CO2 and are
Subducting carbon
The processes that control the movement of carbon from microfossils on the seafloor to erupting volcanoes and deep diamonds, in a cycle driven by plate tectonics, are reviewed.
Magmatic carbon outgassing and uptake of CO2 by alkaline waters
Abstract Much of Earth’s carbon resides in the “deep” realms of our planet: sediments, crust, mantle, and core. The interaction of these deep reservoirs of carbon with the surface reservoir
Earth Catastrophes and their Impact on the Carbon Cycle
Carbon is one of the most important elements on Earth. It is the basis of life, it is stored and mobilized throughout the Earth from core to crust and it is the basis of the energy sources that are
Revision 1 1 Magmatic carbon outgassing and uptake of CO 2 by alkaline waters 2 3
17 18 Much of Earth’s carbon resides in the ‘deep’ realms of our planet: sediments, crust, mantle and 19 core. The interaction of these deep reservoirs of carbon with the surface reservoir
The temperature–CO2 climate connection: an epistemological reappraisal of ice-core messages
  • P. Richet
  • Environmental Science, Geography
    History of Geo- and Space Sciences
  • 2021
Abstract. As simply based on fundamental logic and on the concepts of cause and effect, an epistemological examination of the geochemical analyses performed on the Vostok ice cores invalidates the
The Isotopic Imprint of Life on an Evolving Planet
Stable isotope compositions of biologically cycled elements encode information about the interaction between life and environment. On Earth, geochemical biomarkers have been used to probe the extent,


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Rise of Earth’s atmospheric oxygen controlled by efficient subduction of organic carbon
Little is known about the deep carbon cycle during the Archaean. High- pressure and -temperature experiments indicate that the subduction of organic carbon on a hotter, younger Earth was efficient,
Two-step rise of atmospheric oxygen linked to the growth of continents
Atmospheric oxygen levels increased in two stages. This two-step rise of oxygen may be a natural consequence of lowered oxidative capacity caused by the emergence of felsic continents and the growth
The Carbon cycle and atmospheric CO[2] : natural variations Archean to present
This book presents the papers given at a conference on the atmospheric chemistry of carbon dioxide. Topics considered at the conference included the carbon cycle, the tropospheric methane cycle, the
A negative feedback mechanism for the long‐term stabilization of Earth's surface temperature
We suggest that the partial pressure of carbon dioxide in the atmosphere is buffered, over geological time scales, by a negative feedback mechanism in which the rate of weathering of silicate
Sinks for Anthropogenic Carbon
We have learned much about the workings of natural sinks like the oceans and terrestrial plants, but are just beginning to understand how their behavior might change as atmospheric CO2 concentrations
Glacial weathering, sulfide oxidation, and global carbon cycle feedbacks
Data is compiled showing that, as hypothesized previously, waters draining glaciers have solute chemistry that is distinct from nonglacial rivers and reflects different proportions of mineral weathering reactions, which supports the theory that glacial weathering is characterized predominantly by weathering of trace sulfide and carbonate minerals.
Global Continental Arc Flare-ups and Their Relation to Long-Term Greenhouse Conditions
Continents are long-term storage sites for sedimentary carbonates. Global flare-ups in continental arc volcanism, when arc magmas intersect and interact with stored carbonates, thus have the
Carbon dioxide released from subduction zones by fluid-mediated reactions
The balance between carbonate subduction into the deep Earth and CO2 release through degassing at volcanoes is critical for the carbon cycle. Geochemical analyses of an exhumed subduction zone