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
Citations
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Dynamic of particulate and dissolved organic carbon in small volcanic mountainous tropical watersheds
E. Lloret,Céline Dessert,Céline Dessert,L. Pastor,Eric Lajeunesse,O. Crispi,Jérôme Gaillardet,Marc F. Benedetti +7 more
TL;DR: In this article, the authors studied the geochemistry of three small watersheds around the Basse-Terre volcanic island (French West Indies, FWI) during a four years period, by measuring dissolved organic carbon (DOC), particulate organic carbon and dissolved inorganic carbon (DIC) concentrations.
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Changing tectonic controls on the long‐term carbon cycle from Mesozoic to present
TL;DR: In this article, the authors use improved geologic data to update the representation of tectonic drivers in the COPSE biogeochemical model, which distinguishes CO2 sinks from terrestrial granite weathering, total basalt weathering and seafloor alteration.
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Influence of temporally varying weatherability on CO 2 –climate coupling and ecosystem change in the late Paleozoic
Jon D. Richey,Isabel P. Montañez,Yves Goddéris,Cindy V. Looy,Neil Griffis,Neil Griffis,William A. DiMichele +6 more
TL;DR: In this paper, a new and age-recalibrated p CO2 reconstruction for the 40-myr interval ( ∼313 to 273 Ma ) of the late Paleozoic is presented.
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Critical zone structure controls concentration-discharge relationships and solute generation in forested tropical montane watersheds
TL;DR: In this paper, the authors used 10-30 years of weekly stream chemistry data across 10 watersheds to examine C-Q relationships for weathering products (SiO2(aq), Ca21, Mg21, Na1, and Na1) and biologically controlled solutes (dissolved organic carbon [DOC], dissolved organic nitrogen [DON], NH14, NO-3, PO3-4, K1 and SO2-4).
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Riverine silicon isotope variations in glaciated basaltic terrains: implications for the Si delivery to the ocean over glacial-interglacial intervals
Sophie Opfergelt,Sophie Opfergelt,Kevin W. Burton,Philip A.E. Pogge von Strandmann,Sigurdur R. Gislason,Alex N. Halliday +5 more
TL;DR: In this article, it is shown that glacier-fed Icelandic rivers differ from those directly draining basaltic catchments in their dissolved Si isotope compositions, and that these are associated with higher physical erosion rates and enhanced formation of secondary minerals in direct runoff rivers.
References
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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.