Results 11 to 20 of about 818,473 (313)

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

Rock organic carbon oxidation CO2 release offsets silicate weathering sink. [PDF]

open access: yesNature, 2023
Mountain uplift and erosion have regulated the balance of carbon between Earth’s interior and atmosphere, where prior focus has been placed on the role of silicate mineral weathering in CO_2 drawdown and its contribution to the stability of Earth’s ...
Zondervan JR   +5 more
europepmc   +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

Global silicate weathering flux overestimated because of sediment-water cation exchange. [PDF]

open access: yesProc Natl Acad Sci U S A, 2021
Significance Large rivers transport water and sediment to floodplains and oceans, supplying the nutrients that sustain life. They also transport carbon, removed from the atmosphere during mineral dissolution reactions, which is thought to provide a key ...
Tipper ET   +10 more
europepmc   +2 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

Quantifying silicate weathering fluxes in rivers [PDF]

open access: yesGoldschmidt2021 abstracts, 2021
Distinction of the inputs into rivers from silicate minerals, carbonate minerals, and salts is critical to estimating the silicate weathering fluxes thought to act as a major feedback controlling the Earth's climate on long timescales. Distinction of the
Michael Bickle
openaire   +2 more sources

Negative CO2 emissions via enhanced silicate weathering in coastal environments. [PDF]

open access: yesBiol Lett, 2017
Negative emission technologies (NETs) target the removal of carbon dioxide (CO2) from the atmosphere, and are being actively investigated as a strategy to limit global warming to within the 1.5–2°C targets of the 2015 UN climate agreement.
Meysman FJ, Montserrat F.
europepmc   +2 more sources

High‐resolution mapping of the global silicate weathering carbon sink and its long‐term changes

open access: yesGlobal Change Biology, 2022
Climatic and non‐climatic factors affect the chemical weathering of silicate rocks, which in turn affects the CO2 concentration in the atmosphere on a long‐term scale.
Chaojun Li   +16 more
semanticscholar   +1 more source

Is the climate change mitigation effect of enhanced silicate weathering governed by biological processes?

open access: yesGlobal Change Biology, 2021
A number of negative emission technologies (NETs) have been proposed to actively remove CO2 from the atmosphere, with enhanced silicate weathering (ESW) as a relatively new NET with considerable climate change mitigation potential.
S. Vicca   +14 more
semanticscholar   +1 more source

Sulfate sulfur isotopes and major ion chemistry reveal that pyrite oxidation counteracts CO2 drawdown from silicate weathering in the Langtang-Trisuli-Narayani River system, Nepal Himalaya

open access: yesGeochimica et Cosmochimica Acta, 2021
Drawdown of atmospheric carbon dioxide (CO₂) due to silicate weathering in the Himalaya has previously been implicated in Cenozoic cooling. However, over timescales shorter than that of the removal of marine sulfate (SO₄²⁻), the oxidation of pyrite (FeS₂)
P. Kemeny   +8 more
semanticscholar   +1 more source

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