Results 11 to 20 of about 824,380 (294)

Assessment of the enhanced weathering potential of different silicate minerals to improve soil quality and sequester CO2

open access: yesFrontiers in Climate, 2023
Enhanced weathering is a negative emission technology that involves the spread of crushed silicate minerals and rocks on land and water. When applied to agricultural soils, the resulting increase in soil pH and release of nutrients may co-benefit plant ...
Emily E. E. M. te Pas   +2 more
doaj   +2 more sources

Silicates, Silicate Weathering, and Microbial Ecology [PDF]

open access: yesGeomicrobiology Journal, 2001
Mineralogy, microbial ecology, and mineral weathering in the subsurface are an intimately linked biogeochemical system. Although bacteria have been implicated indirectly in the accelerated weathering of minerals, it is not clear if this interaction is simply the coincidental result of microbial metabolism, or if it represents a specific strategy ...
exaly   +2 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

Silicate weathering as a feedback and forcing in Earth's climate and carbon cycle

open access: yesEarth-Science Reviews, 2020
Current understanding of the long-term carbon cycle posits that Earth's climate is stabilized by a negative feedback involving CO2 consumption by chemical weathering of silicate minerals.
Donald E Penman   +2 more
exaly   +2 more sources

Global CO2Consumption by Silicate Rock Chemical Weathering: Its Past and Future

open access: yesEarth's Future, 2021
Silicate rock weathering maintains a stable and long‐term absorption of CO2. However, the magnitude, spatial pattern, and evolution characteristics of global silicate rock weathering carbon sink (SCS) remain unclear.
Sirui Zhang, Xiaoyong Bai, Fei Chen
exaly   +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

A numerical examination of the effect of sulfide dissolution on silicate weathering

open access: yesEarth and Planetary Science Letters, 2020
Silicate weathering regulates climate on geological time scales as a net, climate-sensitive sink of atmospheric CO2. On the other hand, sulfuric acid produced through sulfide dissolution affects silicate weathering, diminishing its effectiveness as a ...
Yoshiki Kanzaki   +2 more
exaly   +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 Osmium Isotope Signature of Phanerozoic Large Igneous Provinces

open access: yesGeophysical Monograph Series, Page 229-246., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Alexander J. Dickson   +2 more
wiley  

+12 more sources

Relationships between CO2, thermodynamic limits on silicate weathering, and the strength of the silicate weathering feedback

open access: yesEarth and Planetary Science Letters, 2018
Abstract Recent studies have suggested that thermodynamic limitations on chemical weathering rates exert a first-order control on riverine solute fluxes and by extension, global chemical weathering rates. As such, these limitations may play a prominent role in the regulation of carbon dioxide levels (pCO2) over geologic timescales by constraining the
Matthew J. Winnick, Kate Maher
openaire   +3 more sources

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