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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Effects of chemical weathering and CO2 outgassing on δ13CDIC signals in a karst watershed
Jinke Liu,Guilin Han +1 more
TL;DR: Wang et al. as discussed by the authors investigated the dominant factors of dissolved inorganic carbon species and its stable carbon isotopic signals in large watershed under base flow condition, 81 river water samples were collected in the Xijiang River during the dry season in 2015.
Journal ArticleDOI
Microarray analysis of a microbe-mineral interaction.
TL;DR: The mechanisms by which micro-organisms might have sequestered nutrients on the early Earth are elucidated to provide an explanation for the evolution of multiple heavy metal resistance genes long before the creation of contaminated industrial biotopes by human activity.
Journal ArticleDOI
Geochemical and isotopic (U, Sr) tracing of water pathways in the granitic Ringelbach catchment (Vosges Mountains, France)
Thiebaud Schaffhauser,François Chabaux,Bruno Ambroise,Yann Lucas,Peter Stille,Thierry Reuschlé,Thierry Perrone,Bertrand Fritz +7 more
TL;DR: In this article, the major element concentrations and U and Sr isotope ratios were determined in waters collected from the main springs located in the small (0.36 km 2 ) Ringelbach catchment (Vosges, France), which has a basement consisting of Hercynian granite capped in its upper part by a residual cover of Triassic sandstones.
Journal ArticleDOI
Concentrations and exports of solutes from surface runoff in Houzhai Karst Basin, southwest China
TL;DR: In this paper, chemical concentrations and export rates from surface water were analyzed in Houzhai Karst Basin (HKB, area 80.65 km(2) in total), southwest China, for the past two decades from 1986 to 2007.
Journal ArticleDOI
High‐resolution mapping of the global silicate weathering carbon sink and its long‐term changes
Chaojun Li,Xiaoyong Bai,Qiu Tan,Guangjie Luo,Luhua Wu,Fei Chen,Hui-Hui Xi,Xuling Luo,Chen Ran,Huan Chen,Sirui Zhang,Min Liu,Suhua Gong,Liangping Xiong,Fengjiao Song,B.-L. Xiao,Chaochao Du +16 more
TL;DR: In this paper , the authors used the improved first-order model with correlated factors and nonparametric methods, and produced spatiotemporal data sets (0.25° × 0.75°) of the global silicate weathering carbon-sink flux (SCSFα) under different scenarios (SSPs) in present (1950-2014) and future (2015-2100) periods based on the Global River Chemistry Database and CMIP6 data sets.
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.