Journal ArticleDOI
Basalt weathering laws and the impact of basalt weathering on the global carbon cycle
TLDR
In this paper, the chemical weathering of basalts and the flux of carbon transferred from the atmosphere to the ocean during this major process at the surface of the Earth were investigated.About:
This article is published in Chemical Geology.The article was published on 2003-12-30. It has received 762 citations till now. The article focuses on the topics: Soil production function & Weathering.read more
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Dissertation
Processus et Bilans d'altération en milieu tropical (bassin versant de Mule Hole, Inde du Sud) : Sensibilité à la Composition Minéralogique et au Climat
TL;DR: In this paper, the connaissances sur les processus and les facteurs de controle des flux d'alteration chimiques a l'echelle d'un petit bassin versant tropical (Mule Hole, Inde du Sud).
Journal ArticleDOI
How temperature-dependent silicate weathering acts as Earth’s geological thermostat
TL;DR: The temperature sensitivity of atmospheric carbon dioxide removal by chemical weathering increases and then decreases from laboratory to globe, as transport, clay precipitation, disaggregation, and fracturing increasingly couple to dissolution as mentioned in this paper .
Journal ArticleDOI
Depositional history of the Mesoproterozoic Chhattisgarh Basin, central India: insights from geochemical provenance of siliciclastic sediments
TL;DR: The Chhattisgarh basin is one of the most important Proterozoic basins of peninsular India as discussed by the authors, owing to its deposition in the Mesoproterozoics, the largely undeformed and unmetamorphosed sedimentary se...
Journal ArticleDOI
Direct and indirect impact of the bacterial strain Pseudomonas aeruginosa on the dissolution of synthetic Fe(III)- and Fe(II)-bearing basaltic glasses
Anne Perez,Stéphanie Rossano,Nicolas Trcera,Aurélie Verney-Carron,Céline Rommevaux,Chloé Fourdrin,Ana Carolina Agnello,David Huguenot,François Guyot +8 more
TL;DR: In this paper, the authors investigated the direct and indirect bacterial contributions that influence the dissolution of basaltic glass and found that siderophore production appeared to be either continuous in the absence of Fe (glass-free control, Fe-free glass dissolution experiments) or stopped as soon as the bacteria entered their stationary phase when an Fe source was present.
Journal ArticleDOI
Estimating silicate weathering timescales from geochemical modeling and spring water residence time in the Kirishima volcanic area, southern Japan
TL;DR: In this paper, the authors used a geochemical model for the Kirishima volcanic area in southern Japan to understand the timescale of chemical weathering in such a weathering hot spot.
References
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Journal ArticleDOI
Global silicate weathering and CO2 consumption rates deduced from the chemistry of large rivers
TL;DR: In this article, newly compiled data on the 60 largest rivers of the world are used to calculate the contribution of main lithologies, rain and atmosphere to river dissolved loads, and the relationship between the chemical weathering rates of silicates and the possible controlling parameters are explored.
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The carbonate-silicate geochemical cycle and its effect on atmospheric carbon dioxide over the past 100 million years
TL;DR: In this article, a computer model has been constructed that considers the effects on the CO/sub 2/ level of the atmosphere, and the Ca, Mg, and HCO/sub 3/ levels of the ocean, of the following processes: weathering on the continents of calcite, dolomite, and calcium-and-magnesium-containing silicates; biogenic precipitation and removal of CaCO 3/from the ocean; removal of Mg from the ocean via volcanic-seawater reaction; and the metamorphic-magmatic decarbon
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Tectonic forcing of late Cenozoic climate
TL;DR: In particular, tectonically driven increases in chemical weathering may have resulted in a decrease of atmospheric C02 concentration over the past 40 Myr as discussed by the authors. But this was not shown to be the case for the uplift of the Tibetan plateau and positive feedbacks initiated by this event.
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Geocarb III: A Revised Model of Atmospheric CO2 over Phanerozoic Time
TL;DR: In this article, the GEOCARB model has been updated with an emphasis on factors affecting CO2 uptake by continental weathering, including the role of plants in chemical weathering and the application of GCMs to study the long-term carbon cycle.
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A negative feedback mechanism for the long‐term stabilization of Earth's surface temperature
TL;DR: In this article, it is suggested 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 minerals (followed by deposition of carbonate minerals) depends on surface temperature, which in turn depends on the carbon dioxide partial pressure through the greenhouse effect.