Contribution of the chemical weathering to the CO2 consumption in a microbasin of Quadrilátero Ferrífero, Brazil

2021 ◽  
Vol 80 (17) ◽  
Author(s):  
Daniela V. Machado ◽  
Camila R. e Silva ◽  
Eduardo D. Marques ◽  
Gabriel S. de Almeida ◽  
Emmanoel V. Silva-Filho
Keyword(s):  
Chemical Weathering ◽  
Co2 Consumption ◽  
Quadrilátero Ferrífero

Atmospheric CO2 consumption by chemical weathering in North America

2011 ◽  
Vol 75 (24) ◽  
pp. 7829-7854 ◽  
Author(s):  
Nils Moosdorf ◽  
Jens Hartmann ◽  
Ronny Lauerwald ◽  
Benjamin Hagedorn ◽  
Stephan Kempe
Keyword(s):  
North America ◽  
Chemical Weathering ◽  
Atmospheric Co2 ◽  
Co2 Consumption

scholarly journals Global CO2-consumption by chemical weathering: What is the contribution of highly active weathering regions?

2009 ◽  
Vol 69 (4) ◽  
pp. 185-194 ◽  
Author(s):  
Jens Hartmann ◽  
Nils Jansen ◽  
Hans H. Dürr ◽  
Stephan Kempe ◽  
Peter Köhler
Keyword(s):  
Chemical Weathering ◽  
Highly Active ◽  
Co2 Consumption

scholarly journals Chemical weathering rates and atmospheric/soil CO2 consumption of igneous and metamorphic rocks under tropical climate in southeastern Brazil

2016 ◽  
Vol 443 ◽  
pp. 54-66 ◽  
Author(s):  
Alexandre Martins Fernandes ◽  
Fabiano Tomazini da Conceição ◽  
Eder Paulo Spatti Junior ◽  
Diego de Souza Sardinha ◽  
Jeferson Mortatti
Keyword(s):  
Chemical Weathering ◽  
Tropical Climate ◽  
Southeastern Brazil ◽  
Metamorphic Rocks ◽  
Soil Co2 ◽  
Weathering Rates ◽  
Co2 Consumption

Stream geochemistry, chemical weathering and CO2 consumption potential of andesitic terrains, Dominica, Lesser Antilles

2010 ◽  
Vol 74 (1) ◽  
pp. 85-103 ◽  
Author(s):  
Steven T. Goldsmith ◽  
Anne E. Carey ◽  
Brent M. Johnson ◽  
Susan A. Welch ◽  
W. Berry Lyons ◽  
...  
Keyword(s):  
Chemical Weathering ◽  
Lesser Antilles ◽  
Co2 Consumption ◽  
Stream Geochemistry

Chemical weathering and CO2 consumption of a high-erosion-rate karstic river: a case study of the Sanchahe River, southwest China

2015 ◽  
Vol 34 (4) ◽  
pp. 601-609 ◽  
Author(s):  
Yanling An ◽  
Yiliang Hou ◽  
Qixin Wu ◽  
Lin Qing ◽  
Longbo Li
Keyword(s):  
Erosion Rate ◽  
Chemical Weathering ◽  
Southwest China ◽  
Co2 Consumption ◽  
High Erosion Rate

scholarly journals Consumption of Atmospheric Carbon Dioxide through Weathering of Ultramafic Rocks in the Voltri Massif (Italy): Quantification of the Process and Global Implications

Geosciences ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 258
Author(s):  
Francesco Frondini ◽  
Orlando Vaselli ◽  
Marino Vetuschi Zuccolini
Keyword(s):  
Carbon Dioxide ◽  
Time Scales ◽  
Atmospheric Carbon Dioxide ◽  
Chemical Weathering ◽  
Weighted Average ◽  
Global Scale ◽  
Ultramafic Rocks ◽  
Co2 Consumption ◽  
Atmospheric Carbon ◽  
Good Proxy

Chemical weathering is the main natural mechanism limiting the atmospheric carbon dioxide levels on geologic time scales (>1 Ma) but its role on shorter time scales is still debated, highlighting the need for an increase of knowledge about the relationships between chemical weathering and atmospheric CO2 consumption. A reliable approach to study the weathering reactions is the quantification of the mass fluxes in and out of mono lithology watershed systems. In this work the chemical weathering and atmospheric carbon dioxide consumption of ultramafic rocks have been studied through a detailed geochemical mass balance of three watershed systems located in the metaophiolitic complex of the Voltri Massif (Italy). Results show that the rates of carbon dioxide consumption of the study area (weighted average = 3.02 ± 1.67 × 105 mol km−2 y−1) are higher than the world average CO2 consumption rate and are well correlated with runoff, probably the stronger weathering controlling factor. Computed values are very close to the global average of basic and ultrabasic magmatic rocks, suggesting that Voltri Massif is a good proxy for the study of the feedbacks between chemical weathering, CO2 consumption, and climate change at a global scale.

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