Results 31 to 40 of about 824,380 (294)

Geochemical characteristics of strontium isotopes in a coastal watershed: implications for anthropogenic influenced chemical weathering and export flux [PDF]

open access: yesPeerJ, 2022
Coastal watershed are essential in transporting dissolved loads from terrestrial biogeochemical process of surface environment to the adjacent oceans.
Shitong Zhang, Guilin Han, Jie Zeng
doaj   +2 more sources

Strong Coupling Between Carbon Cycle, Climate, and Weathering During the Paleocene‐Eocene Thermal Maximum

open access: yesGeophysical Research Letters, 2023
The Paleocene‐Eocene Thermal Maximum (PETM; ∼56 Ma)–a geologically rapid carbon‐release event similar to anthropogenic carbon emissions–is ideal for investigating weathering responses to rapid carbon release and associated climate change.
Zuoling Chen   +7 more
doaj   +1 more source

Mineral–Soil–Plant–Nutrient Synergisms of Enhanced Weathering for Agriculture: Short-Term Investigations Using Fast-Weathering Wollastonite Skarn

open access: yesFrontiers in Plant Science, 2022
Enhanced weathering is a proposed carbon dioxide removal (CDR) strategy to accelerate natural carbon sequestration in soils via the amendment of silicate rocks to agricultural soils.
Hiral Jariwala   +4 more
doaj   +1 more source

New estimate of chemical weathering rate in Xijiang River Basin based on multi-model

open access: yesScientific Reports, 2021
Hydrochemistry and Sr isotope compositions were measured in water samples collected during high- and low-water periods from the main stream and tributaries of the Xijiang River Basin in southern China. The primary weathering end-members were analyzed and
Yong Zhang   +8 more
doaj   +1 more source

Silicate rock weathering and atmospheric/soil CO2 uptake in the Amazon basin estimated from river water geochemistry: seasonal and spatial variations [PDF]

open access: yes, 2003
Using the data of the CAMREX project (1982–1984) on the water geochemistry of the Amazon river and its main tributaries, it was possible to assess the silicate rock weathering processes and the associated consumption of atmospheric/soil CO2, taking into
Mortatti, Jefferson, Probst, Jean-Luc
core   +2 more sources

Enhanced chemical weathering of rocks during the last glacial maximum: a sink for atmospheric CO2? [PDF]

open access: yes, 1999
It has been proposed that increased rates of chemical weathering and the related drawdown of atmospheric CO2 on the continents may have at least partly contributed to the low CO2 concentrations during the last glacial maximum LGM..
Amiotte Suchet, Philippe   +2 more
core   +2 more sources

Colluvial deposits as a possible weathering reservoir in uplifting mountains [PDF]

open access: yesEarth Surface Dynamics, 2018
The role of mountain uplift in the evolution of the global climate over geological times is controversial. At the heart of this debate is the capacity of rapid denudation to drive silicate weathering, which consumes CO2.
S. Carretier   +6 more
doaj   +1 more source

Co-variations of climate and silicate weathering in the Nile Basin during the Late Pleistocene

open access: yesQuaternary Science Reviews, 2021
We have investigated provenance and weathering proxies of the clay-size sediment exported from the Nile River basin over the last 110,000 years. Using neodymium isotope composition of sediments from both the Nile Deep Sea-Fan and Lake Tana, we show that ...
L. Bastian   +8 more
semanticscholar   +1 more source

The effect of lithology on the relationship between denudation rate and chemical weathering pathways – evidence from the eastern Tibetan Plateau [PDF]

open access: yesEarth Surface Dynamics, 2022
The denudation of rocks in mountain belts exposes a range of fresh minerals to the surface of the Earth that are chemically weathered by acidic and oxygenated fluids.
A. Bufe   +5 more
doaj   +1 more source

Silicate weathering and carbon cycle controls on the Oligocene-Miocene transition glaciation [PDF]

open access: yes, 2017
Changes in both silicate weathering rates and organic carbon burial have been proposed as drivers of the transient “Mi-1” glaciation event at the Oligocene-Miocene transition (OMT; ~23 Ma).
Algeo   +107 more
core   +3 more sources

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