Results 31 to 40 of about 164,938 (266)

Physical and chemical weathering rates and CO2 consumption in a tropical lateritic environment: the upper Niger basin [PDF]

, 1998
The chemical composition of Niger river water measured bimonthly at Bamako Mali. during the period 1990–1992 provides an estimate of present weathering rates in the upper Niger basin.
Probst, Jean-Luc, Jean-Loup Boeglin, Jean-Luc Probst, Boeglin, Jean-Loup   +3 more
core   +1 more source

Major ion chemistry of the Teesta River in Sikkim Himalaya, India: Chemical weathering and assessment of water quality

Journal of Hydrology: Regional Studies, 2019
Study Region: Teesta River of Eastern Himalayas, India. Study Focus: This article addresses the mechanisms of weathering in the Teesta River, for the first time based on the original data of major ions. Water samples were collected along the Teesta River
Tenzin Tsering, Mahmoud S.M. Abdel Wahed, Sidra Iftekhar, Mika Sillanpää   +3 more
doaj   +1 more source

Geochemistry of the dissolved loads during high-flow season of rivers in the southeastern coastal region of China: anthropogenic impact on chemical weathering and carbon sequestration [PDF]

Biogeosciences, 2018
The southeastern coastal region is one of the most developed and populated areas in China. Meanwhile, it has been severely impacted by acid rain over many years.
W. Liu, W. Liu, W. Liu, Z. Xu, Z. Xu, Z. Xu, H. Sun, H. Sun, T. Zhao, T. Zhao, C. Shi, T. Liu   +11 more
doaj   +1 more source

Applications of stable water and carbon isotopes in watershed research: Weathering, carbon cycling, and water balances [PDF]

, 2011
Research on rivers has traditionally involved concentration and flux measurements to better understand weathering, transport and cycling of materials from land to ocean.
Petelet-Giraud, Emmanuelle, Philippe Négrel, Heiko Freitag, Schulte, Peter, Van Geldern, Robert, Jean-Luc Probst, Peter Schulte, Ajaz Karim, Kevin Telmer, Johannes A.C. Barth, Probst, Jean-Luc, Freitag, Heiko, Karim, Ajaz, Robert van Geldern, Anne Probst, Telmer, Kevin, Négrel, Philippe, Barth, Johannes A.C., Probst, Anne, Ján Veizer, Veizer, Jan, Emmanuelle Petelet-Giraud, Barth, J. A. C., Barth, Johannes A. C.   +23 more
core   +1 more source

The Weathering Microbiome of an Outcropping Granodiorite

Frontiers in Microbiology, 2020
Microorganisms have long been recognized for their capacity to catalyze the weathering of silicate minerals. While the vast majority of studies on microbially mediated silicate weathering focus on organotrophic metabolism linked to nutrient acquisition ...
Stephanie A. Napieralski, Eric E. Roden
doaj   +1 more source

Atmospheric CO2 Consumption by Chemical Weathering in the Main Tributaries of the Yellow River: Tao He, Huang Shui, and Datong He, Originating From the Northeastern Qinghai-Tibet Plateau

Frontiers in Earth Science, 2021
The Tao He, Huang Shui, and Datong He originate from the northeastern margin of the Qinghai-Tibet Plateau (QTP) and flow into the Yellow River on the Loess Plateau (LP), all with a basin area exceeding 15,000 km2, and are the three largest tributaries of
Zhuoma Yongji, Zhuoma Yongji, Liuqian Zhao, Liuqian Zhao, Yunxiao Li, Longjun Zhang, Longjun Zhang   +6 more
doaj   +1 more source

Modelling weathering processes at the catchment scale: The WITCH numerical model [PDF]

, 2006
A numerical model of chemical weathering in soil horizons and underlying bedrock (WITCH) has been coupled to a numerical model of water and carbon cycles in forest ecosystems (ASPECTS) to simulate the concentration of major species within the soil ...
Godderis, Y., Schott, Jacques, François, Louis, Viville, Daniel, Labat, David, Probst, A., Goddéris, Yves, Schott, J., Moncoulon, D., Viville, D., Probst, Anne, Moncoulon, David, Labat, D.   +12 more
core   +1 more source

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

Frontiers 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, Mathilde Hagens, Rob N. J. Comans   +2 more
doaj   +1 more source

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

Earth 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   +2 more sources

Evaluating sensitivity of silicate mineral dissolution rates to physical weathering using a soil evolution model (SoilGen2.25) [PDF]

Biogeosciences, 2015
Silicate mineral dissolution rates depend on the interaction of a number of factors categorized either as intrinsic (e.g. mineral surface area, mineral composition) or extrinsic (e.g.
E. Opolot, P. A. Finke
doaj   +1 more source