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A global temperature control of silicate weathering intensity [PDF]

open access: yesNature Communications, 2022
How silicate weathering responds to and regulates Earth’s climate remain controversial. This study suggests the primary control of temperature on weathering intensity globally and the temperature-weathering feedback may be stronger in cold Earth.
Kai Deng, Shouye Yang, Yulong Guo
doaj   +6 more sources

Trends and Transitions in Silicate Weathering in the Asian Interior (NE Tibet) Since 53 Ma

open access: yesFrontiers in Earth Science, 2022
The relationship between silicate weathering, Tibetan Plateau uplift, and global cooling during the Cenozoic provides a valuable case study for understanding the interaction of tectonics and climate.
Yibo Yang   +5 more
doaj   +2 more sources

K isotopes trace temporal silicate weathering intensity [PDF]

open access: yesNature Communications
Silicate weathering alters the biogeochemical compositions of the lithosphere, hydrosphere, and atmosphere, and thereby regulates both nutrient cycling and habitable temperatures on Earth, but tracing silicate weathering effectively remains a challenge ...
Long-Fei Gou   +9 more
doaj   +2 more sources

Magnesium Isotope Fractionation During Silicate Weathering: Constrains From Riverine Mg Isotopic Composition in the Southeastern Coastal Region of China

open access: yesGeochemistry, Geophysics, Geosystems, 2022
Mg isotopic composition of river water is dominantly controlled by the dissolution of both silicate and carbonate sources and a series of biogeochemical processes.
Tong Zhao, Wenjing Liu, Zhifang Xu
doaj   +2 more sources

Silicate weathering in anoxic marine sediments [PDF]

open access: yesMineralogical Magazine, 2008
Two sediment cores retrieved at the northern slope of Sakhalin Island, Sea of Okhotsk, were analysed for biogenic opal, organic carbon, carbonate, sulphur, major element concentrations, mineral contents and dissolved substances including nutrients, sulphate, methane, major cations, humic substances and total alkalinity.
Wallmann, K.   +7 more
openaire   +10 more sources

Silicate chemical weathering disrupts the global patterns of phosphorus limitation [PDF]

open access: yesNature Communications
Global change is accelerating the chemical weathering of silicate rocks and the associated phosphorus release. However, the effects of phosphorus release on the global patterns of plant phosphorus limitation remain unclear.
Chaojun Li   +16 more
doaj   +2 more sources

Refined weathering CO2 budget of the Tibetan Plateau strongly modulated by sulphide oxidation [PDF]

open access: yesNature Communications
Estimation of net CO2 consumption by weathering in orogen is complicated as high erosion rate promotes competing processes of CO2 consumption (silicate weathering) and releasing (sulfuric acid (H2SO4) dissolution of carbonate).
Wenjing Liu   +5 more
doaj   +2 more sources

Dissolved load, chemical weathering, and CO2 uptake dynamics of small tropical mountainous rivers of Southern Granulite Terrain, Karamana and Vamanpuram, Western Ghats, India [PDF]

open access: yesScientific Reports
Chemical weathering in a river basin is a key geochemical process that controls fluxes between the atmosphere, land, and ocean, playing a crucial role in regulating Earth’s climate, particularly the small tropical mountainous rivers with high weathering ...
B. Upendra   +6 more
doaj   +2 more sources

The effect of the Pliocene temperature pattern on silicate weathering and Pliocene–Pleistocene cooling [PDF]

open access: yesClimate of the Past, 2023
The warmer early Pliocene climate featured changes to global sea surface temperature (SST) patterns, namely a reduction in the Equator–pole gradient and the east–west SST gradient in the tropical Pacific, the so-called “permanent El Niño”.
P. Maffre   +2 more
doaj   +1 more source

Mobile evaporite enhances the cycle of physical–chemical erosion in badlands [PDF]

open access: yesEarth Surface Dynamics, 2023
Chemical weathering driven by physical erosion is a natural process that strongly affects chemical and solid matter budgets at the Earth's surface. However, the influence of extreme climatic erosion on chemical weathering dynamics is poorly understood ...
C.-J. Yang   +8 more
doaj   +1 more source

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