Results 251 to 260 of about 818,473 (313)

Earth’s silicate weathering continuum

Nature Geoscience
Chemical weathering of silicate rocks redistributes major, minor and trace elements through coupled dissolution–precipitation reactions. These weathering processes drive shifts in ocean acid–base chemistry, modulating atmospheric carbon dioxide levels and providing a stabilizing feedback in the carbon cycle.
Gerrit Trapp-Müller, Jeremy Caves Rugenstein, Daniel J. Conley, Sonja Geilert, Mathilde Hagens, Wei-Li Hong, Catherine Jeandel, Jack Longman, Paul R. D. Mason, Jack J. Middelburg, Kitty L. Milliken, Alexis Navarre-Sitchler, Noah J. Planavsky, Gert-Jan Reichart, Caroline P. Slomp, Appy Sluijs, Douwe J. J. van Hinsbergen, Xu Y. Zhang   +17 more
openaire   +5 more sources

A revised model for silicate weathering

Goldschmidt2023 abstracts, 2023
Silicate weathering has long been considered an important sink for the carbon cycle and a thermostat for the earth habitability. Many factors including climate, tectonic, and biology affect this process and their interaction makes it complex to study ...
Haoyue Zuo, Yonggang Liu
openaire   +2 more sources

How temperature-dependent silicate weathering acts as Earth’s geological thermostat

Science, 2023
Earth’s climate may be stabilized over millennia by solubilization of atmospheric carbon dioxide (CO2) as minerals weather, but the temperature sensitivity of this thermostat is poorly understood.
S. Brantley, A. Shaughnessy, M. Lebedeva, V. Balashov   +3 more
semanticscholar   +1 more source

Modern Silicate Weathering Regimes Across China Revealed by Geochemical Records From Surface Soils

Journal of Geophysical Research: Earth Surface, 2022
Knowledge of modern kinetically limited (i.e., silicate weathering depends on temperature and precipitation) and supply‐limited (i.e., weathering is limited mainly by the supply of fresh material) weathering regimes is important for analyzing the ...
Licheng Guo, Jiabin Wu, Yulu Chen, S. Xiong, Jingyi Cui, Z. Ding   +5 more
semanticscholar   +1 more source

Atmospheric CO2 sink: Silicate weathering or carbonate weathering?

Applied Geochemistry, 2011
It is widely accepted that chemical weathering of Ca–silicate rocks could potentially control long-term climate change by providing feedback interaction with atmospheric CO2 drawdown by means of precipitation of carbonate, and that in contrast weathering of carbonate rocks has not an equivalent impact because all of the CO2 consumed in the weathering ...
Liu, Zaihua, Dreybrodt, Wolfgang, Liu, Huan   +2 more
openaire   +2 more sources

Exploring reverse silicate weathering across geological time: a review

Clay minerals
Marine clay mineral authigenesis, referred to as reverse (silicate) weathering, is one of the first-order controls on seawater pH through the generation of acidity and thus plays a significant role in controlling carbon cycling between marine sediments ...
Andre Baldermann, Santa Banerjee, Stefan C. Löhr, M. Rudmin, L. Warr, Arpita Chakraborty   +5 more
semanticscholar   +1 more source

Temperature Control on Silicate Weathering Intensity and Evolution of the Neogene East Asian Summer Monsoon

Geophysical Research Letters, 2020
Accurately reconstructing the evolution of the Asian monsoon is predicated on understanding the impact of temperature, precipitation, and tectonic paleogeography on silicate weathering proxies over million year timescales.
Xueping Ren, J. Nie, J. Saylor, Xiaoxue Wang, Fangbin Liu, B. Horton   +5 more
semanticscholar   +1 more source

Silicate Weathering and Climate

1997
There 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
openaire   +1 more source

Modeling the consequences of land plant evolution on silicate weathering

American Journal of Science, 2019
It 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, J. Rugenstein, J. Rugenstein, J. Rugenstein, A. Bachan, Andrés Baresch, Kimberly V. Lau, Kimberly V. Lau, Kimberly V. Lau, Dana L. Thomas, Dana L. Thomas, Jung‐Eun Lee, C. Boyce, C. Chamberlain   +13 more
semanticscholar   +1 more source

The Goldilocks Planet? How Silicate Weathering Maintains Earth “Just Right”

Elements, 2019
Earth'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
semanticscholar   +1 more source