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Silicate Weathering and Climate
1997There is no doubt that the temperature at the surface of the Earth has not varied excessively since the origin of life. Certainly the stability limits of liquid water have not been exceeded. If CO2 is an important greenhouse gas, as is commonly accepted, this means that its level in the atmosphere has not varied enough to cause excessively low ...
Robert A. Berner, Elizabeth K. Berner
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Modeling the consequences of land plant evolution on silicate weathering
American Journal of Science, 2019It has long been recognized that the advent of vascular plants in the Paleozoic must have changed silicate weathering and fundamentally altered the long-term carbon cycle.
D. Ibarra +13 more
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The Goldilocks Planet? How Silicate Weathering Maintains Earth “Just Right”
Elements, 2019Earth's climate is buffered over long timescales by a negative feedback between atmospheric CO2 level and surface temperature. The rate of silicate weathering slows as the climate cools, causing CO2 to increase and warming the surface through the ...
J. Kasting
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Chemical Geology, 2019
Silicate weathering is intimately linked to global climate. To investigate the controlling factors of silicate weathering rate, we collected monthly or half-monthly river water samples from ten small granitic watersheds in the Jiuhua Mountains.
Mingzhao Sun +4 more
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Silicate weathering is intimately linked to global climate. To investigate the controlling factors of silicate weathering rate, we collected monthly or half-monthly river water samples from ten small granitic watersheds in the Jiuhua Mountains.
Mingzhao Sun +4 more
semanticscholar +1 more source
Earth and Planetary Science Letters, 2018
The role of mountains in the geological evolution of the carbon cycle has been intensively debated for the last decades. Mountains are thought to increase the local physical erosion, which in turns promotes silicate weathering, organic carbon transport ...
P. Maffre +5 more
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The role of mountains in the geological evolution of the carbon cycle has been intensively debated for the last decades. Mountains are thought to increase the local physical erosion, which in turns promotes silicate weathering, organic carbon transport ...
P. Maffre +5 more
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Natural Weathering Rates of Silicate Minerals
2014This chapter presents (1) the development of rates that quantitatively describe silicate mineral and rock weathering, (2) a summary of the available literature rate data for the weathering of several common silicate minerals, and (3) a discussion of the chemical, physical, and hydrologic processes that control silicate mineral weathering at the Earth's
White, Arthur F, Buss, Heather L
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Forests, climate, and silicate rock weathering
Journal of Geochemical Exploration, 2006Abstract Over time periods of 10 6 years and longer, atmospheric carbon dioxide content is largely controlled by a balance between silicate rock weathering and CO 2 sources (degassing from the Earth plus net organic carbon oxidation). Vegetation cover can affect silicate rock weathering rates by increasing soil CO 2 content, stabilizing soil cover,
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The Role of Climate in Silicate Weathering
Mineralogical Magazine, 1998The major factors affecting the rate of chemical weathering of silicate minerals include lithology, topography (relief), permeability, climate (precipitation, temperature and vegetation) and aspect (e.g. Jenny, 1941). Recently it has been suggested (eg., Edmond and Huh, 1997; Gaillardet et al, 1997) that climate, especially temperature, is not an ...
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Controls on Silicate Weathering Rates in Soils
Mineralogical Magazine, 1998By far the largest uncertainty in comparing experimental and field weathering rates is surface area (i.e. White et al., 1996). Geometric surface areas are clearly an underestimate, since even fresh experimental materials have surface roughnesses of 3-20.
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