Results 91 to 100 of about 18,650 (253)

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.
Boeglin, Jean-Loup, Probst, Jean-Luc
core   +2 more sources

New insights into sorption and desorption of organic phosphorus on goethite, gibbsite, kaolinite and montmorillonite

Applied Geochemistry, 2022
Issifou Amadou, M. Faucon, D. Houben
semanticscholar   +1 more source

Experimental simulation of long term weathering in alkaline bauxite residue tailings [PDF]

, 2015
Bauxite residue is an alkaline, saline tailings material generated as a byproduct of the Bayer process used for alumina refining. Developing effective plans for the long term management of potential environmental impacts associated with storage of these ...
Fey, Martin V., Gilkes, Robert J., Santini, Talitha C.   +2 more
core   +3 more sources

Seasonally Dependent Formation of Sulfates in the Basque Lakes, British Columbia, as Analogous to “Cold and Wet” and “Warm and Wet” Mars

Earth and Space Science, Volume 12, Issue 12, December 2025.
Abstract Saline lakes are expected to have been extensively present on ancient Mars, particularly as the planet dried or cooled. Such lakes likely deposited sulfate salts, as these salts have been widely identified from orbital and in situ Mars data. However, the relationship between martian sulfates and the environmental conditions that formed them ...
Emmy B. Hughes, Jacob J. Buffo, Frances Rivera‐Hernández, James J. Wray, Andrew Fleming, Alexandra Pontefract, Kennda Lynch   +6 more
wiley   +1 more source

The Direct Cold Sintering of α-Al₂O₃ Ceramics in a Pure Water Medium

Ceramics
Porous α-Al2O3 ceramics are a highly sought-after material with a multitude of applications; for example, they are used as filters, substrates, biomedicine materials, etc.
Anastasia A. Kholodkova, Maxim V. Kornyushin, Arseniy N. Khrustalev, Levko A. Arbanas, Andrey V. Smirnov, Yurii D. Ivakin   +5 more
doaj   +1 more source

Reflectância espectral e mineralogia de materiais formados sobre diabásio Spectral reflectance and mineralogy of soil materials developed from diabase

Scientia Agricola, 2000
O presente estudo teve por objetivo caracterizar diferentes fases de intemperismo de um solo e relacioná-las com seu comportamento espectral. Um perfil pedológico desenvolvido sobre diabásio da região de Capivari-SP, foi descrito morfologicamente ...
Celso Augusto Clemente, José Alexandre Melo Demattê, Álvaro Luiz Mafra, Sérgio Ricardo Portes Bentivenha   +3 more
doaj   +1 more source

A new microenvironment for the formation of clay minerals: the example of authigenic halloysite-7Å and gibbsite in a stalactite from Agios Georgios Cave, Kilkis, north Greece

International Journal of Speleology, 2015
An unusual authigenic origin for halloysite and gibbsite is reported in a stalactite from Agios Georgios Cave, Kilkis. This speleothem includes mostly pure calcite whereas minor areas of Mg-rich calcite and scarce dolomite are present in four growth ...
Elena Ifandi, University of Patras, Basilios Tsikouras, Dimitrios Papoulis, Konstantin Hatzipanagiotou, Aspasia Antonelou   +4 more
doaj   +1 more source

Variability of the chemical index of alteration (CIA) in the Paraná River suspended load [PDF]

, 1998
Variability of the chemical index of alteration (CIA) in the Paraná River suspended ...
Depetris, Pedro J., Probst, Jean-Luc
core   +1 more source

Calcination of gibbsite

, 1972
Data arc presented showing the changes in physical properties which occur during the calcination of Bayer-process gibbsite at temperatures up to 1400°C. The various stages of the calcination were examined using differential thermal analysis, X-ray diffraction, low-temperature nitrogen adsorption, optical and electron microscopy, and particle-size ...
openaire   +1 more source

Molecular-level understanding of gibbsite particle aggregation in water.

Journal of Colloid and Interface Science, 2021
T. Ho, L. Criscenti
semanticscholar   +1 more source