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Magmatic carbon outgassing and uptake of CO (sub 2) by alkaline waters

Marie Edmonds, Benjamin Tutolo, Kayla Iacovino and Yves Moussallam
Magmatic carbon outgassing and uptake of CO (sub 2) by alkaline waters
American Mineralogist (January 2020) 105 (1): 28-34


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 (atmosphere and oceans) leads to a habitable surface environment, with an equitable atmospheric composition and comfortable range in temperature that together have allowed life to proliferate. The Earth in Five Reactions project (part of the Deep Carbon Observatory program) identified the most important carbon-bearing reactions of our planet, defined as those which perhaps make our planet unique among those in our Solar System, to highlight and review how the deep and surface carbon cycles connect. Here we review the important reactions that control the concentration of carbon dioxide in our atmosphere: outgassing from magmas during volcanic eruptions and during magmatic activity; and uptake of CO (sub 2) by alkaline surface waters. We describe the state of our knowledge about these reactions and their controls, the extent to which we understand the mass budgets of carbon that are mediated by these reactions, and finally, the implications of these reactions for understanding present-day climate change that is driven by anthropogenic emission of CO (sub 2) .

ISSN: 0003-004X
EISSN: 1945-3027
Serial Title: American Mineralogist
Serial Volume: 105
Serial Issue: 1
Title: Magmatic carbon outgassing and uptake of CO (sub 2) by alkaline waters
Affiliation: University of Cambridge, Earth Sciences Department, Cambridge, United Kingdom
Pages: 28-34
Published: 202001
Text Language: English
Publisher: Mineralogical Society of America, Washington, DC, United States
References: 105
Accession Number: 2020-006857
Categories: General geochemistrySolid-earth geophysics
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus.
Secondary Affiliation: University of Calgary, CAN, CanadaNASA, Johnson Space Center, USA, United StatesLamont-Doherty Earth Observatory, USA, United StatesUniversite Clermont Auvergne, FRA, France
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2020, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 202006
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