Results 21 to 30 of about 5,752,310 (307)

The Effect of Size Distribution on the Geochemistry and Mineralogy of Tropical River Sediments and Its Implications regarding Chemical Weathering and Fractionation of Alkali Elements

Lithosphere, 2022
The mineralogical and geochemical compositions of the sediments deposited by rivers have been used extensively to evaluate past chemical weathering and the physical erosion history of drainage basins at different time scales.
Kaikai Wu, Shengfa Liu, Xuefa Shi, Christophe Colin, Franck Bassinot, Zhanghua Lou, Hui Zhang, Aimei Zhu, Xisheng Fang, Che Abd. Rahim Mohamed   +9 more
doaj   +1 more source

Influence of chemical denudation on hillslope morphology [PDF]

, 2004
[1] Models of hillslope evolution involving diffusion-like sediment transport are conventionally presented as an equation in which the changes in land-surface elevation or soil thickness are balanced by the divergence of soil transport and tectonic ...
Furbish, D. J., Mudd, Simon; id_orcid, Simon Marius Mudd, David Jon Furbish   +3 more
core   +1 more source

Reservoir theory for studying the geochemical evolution of soils [PDF]

, 2010
Linking mineral weathering rates measured in the laboratory to those measured at the landscape scale is problematic. In laboratory studies, collections of minerals are exposed to the same weathering environment over a fixed amount of time.
Kyungsoo Yoo, Yoo, Kyungsoo, Simon Marius Mudd, Mudd, Simon Marius; id_orcid   +3 more
core   +1 more source

Provenance and weathering conditions of the Moloundou swamp sediments, southeast Cameroon: Evidence from mineralogy and geochemistry

Solid Earth Sciences, 2020
This work reports the mineralogical and geochemical characterization of the Moloundou swamp sediments in order to deduce their tectonic setting, source rock composition, weathering conditions and maturity.
Armel Zacharie Ekoa Bessa, Gabriel Ngueutchoua, Emile Ekomane, Salomon Bertrant Bissé, Bokanda Ekoko Eric, Durane Chougong, Jacques Alex Kam, Tessontsap Teutsong   +7 more
doaj   +1 more source

Chemical weathering in hardened volcanic horizons (tepetates) of the State of Mexico

Revista Mexicana de Ciencias Geológicas, 2022
Weathering is one of the most important phenomena that affect the balance dynamics of the Earth's crust. The chemical composition of soil samples and hardened horizons from seven profiles (P1 to P7) of the State of Mexico was compared to detect the ...
Otilio A. Acevedo-Sandoval, Francisco Prieto-García, Judith Prieto-Méndez, Yolanda Marmolejo-Santillán, Claudia Romo-Gómez   +4 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

Strontium as a tracer of weathering processes in a silicate catchment polluted by acid atmospheric inputs, Strengbach, France [PDF]

, 2000
This paper determines the weathering and atmospheric contributions of Ca in surface water from a small spruce forested silicate catchment (N–E France) receiving acid atmospheric inputs.
Aubert, Dominique, McNutt, R., B Fritz, A Probst, D Aubert, El Gh'mari, Abderrahmene, Probst, Anne, A El Gh'mari, Fritz, Bertrand, R McNutt   +9 more
core   +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

Modelling of slope processes on karst

Acta Carsologica, 2011
The present paper is concerned with the modelling of the karst slope processes. A simple straightforward one dimensional physical model is introduced in order to assess basic behaviour of the slope development.
Uroš Stepišnik, Gregor Kosec
doaj   +1 more source

Contrasted Chemical Weathering Rates in Cratonic Basins: The Ogooué and Mbei Rivers, Western Central Africa

Frontiers in Water, 2021
Despite the absence of tectonic activity, cratonic environments are characterized by strongly variable, and in places significant, rock weathering rates. This is shown here through an exploration of the weathering rates in two inter-tropical river basins
Jean-Sébastien Moquet, Jean-Sébastien Moquet, Julien Bouchez, Jean-Jacques Braun, Jean-Jacques Braun, Jean-Jacques Braun, Sakaros Bogning, Auguste Paulin Mbonda, Sébastien Carretier, Vincent Regard, Jean-Pierre Bricquet, Marie-Claire Paiz, Emmanuel Mambela, Jérôme Gaillardet   +13 more
doaj   +1 more source