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
Impact des variations de la mousson Africaine sur l’érosion chimique des silicates dans le bassin versant du Nil depuis 100.000 ans
TL;DR: In this article, a geochimique fine des argiles extraites d’archives sedimentaires du delta du Nil sur une echelle de temps de 100.000 years is defined, in order to determine the reconstruction of l’alteration continentale dans le bassin du Nil.
Journal ArticleDOI
Effects of carbonate minerals and exogenous acids on carbon flux from the chemical weathering of granite and basalt
Chaojun Li,Pete Smith,Xiaoyong Bai,Qiu Tan,Guangjie Luo,Qin Li,Jinfeng Wang,Luhua Wu,Fei Chen,Yuanhong Deng,Zeyin Hu,Yujie Yang,Shiqi Tian,Qian Lu,Hui-Hui Xi,Chen Ran,Sirui Zhang +16 more
TL;DR: In this paper , the authors quantified the effects of carbonate minerals and exogenous acids on the carbon fluxes from the chemical weathering of granite and basalt, and found that the effect of exogenous acid on the true carbon flux was approximately 28.72 Tg C/yr on the global grid scale.
Journal ArticleDOI
Emplacement of the Franklin large igneous province and initiation of the Sturtian Snowball Earth
Judy P. Pu,Francis A. Macdonald,Mark D. Schmitz,Robert H. Rainbird,Wouter Bleeker,B. A. Peak,Rebecca M. Flowers,Paul Hoffman,Matthew Rioux,Michael A. Hamilton +9 more
TL;DR: The cause of the catastrophic failure of Earth's thermostat has been unclear, but previous geochronology has suggested a rough coincidence of glacial onset with one of the largest magmatic episodes in the geological record, the Franklin large igneous province in Arctic Canada as mentioned in this paper .
Journal ArticleDOI
Potential for CO2 Mineral Carbonation in the Paleogene Segamat Basalt of Malaysia
TL;DR: In this article, the geochemical and mineralogical characteristics of Segamat basalt in the Central Belt of Malaysia and evaluated its potential for mineral carbonation by using laboratory analyses of X-ray fluorescence (XRF), Xray diffraction analysis (XRD), and petrographic study.
Journal ArticleDOI
Chemical weathering and associated CO2 consumption in the Mahanadi river basin, India
TL;DR: In this article, the authors investigated the sources of major ions and their spatio-temporal variability, chemical weathering rates and associated CO2 consumption in the Mahanadi river basin, one of the largest river basins in India.
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.