Results 41 to 50 of about 1,254 (182)

The process for preparation of active aluminum hydroxyoxide via flash calcination of gibbsite in a new energy-efficient centrifugal drum-type reactor

Cleaner Engineering and Technology, 2021
A process for the preparation active aluminum hydroxyoxide using flash calcination (no longer than 3 s) of gibbsite in a new energy-effective centrifugal drum-type reactor TSEFLAR is considered.
Vladimir Danilevich, Lyubov Isupova, Valentin Parmon   +2 more
doaj   +1 more source

Weakening Processes in Carbonate‐Hosted Faults: Phyllosilicate Microlayers and Injections Along the Mattinata Fault (Southern Italy)

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract Micrometric phyllosilicate films along fault slip surfaces (SSs) can drastically reduce friction, yet they are unexpected in clay‐poor carbonate platforms. We inquire how a major carbonate‐hosted, seismogenic strike‐slip fault can develop weak slip interfaces and undergo dynamic weakening despite an intrinsically strong host rock.
Rachele Calvanelli, Luca Aldega, Andrea Billi, Andrea Cavallo, Manuel Curzi, Marco Mercuri, Michele Morsilli, Alessio Pontesilli, Cecilia Viti, Eugenio Carminati   +9 more
wiley   +1 more source

Mineral weathering in acid saprolites from subtropical, southern Brazil Intemperismo subtropical de minerais em saprolitos ácidos do Sul do Brasil

Scientia Agricola, 2007
Because weathering of minerals releases chemical elements into the biogeochemical cycle, characterization of their weathering products helps to better model groundwater quality, formation of secondary minerals and nutrient flux through the trophic chain.
Celso Augusto Clemente, Antonio Carlos de Azevedo   +1 more
doaj   +1 more source

Cenozoic Time Constraints on the Evolution of a Gleysol‐Ferralsol‐Podzol Toposequence, Northwest Amazon Basin, Brazil

European Journal of Soil Science, Volume 77, Issue 3, May–June 2026.
ABSTRACT Deciphering the time milestones of clay formation is crucial for modeling the evolution of major geological systems near the Earth's surface. In the present study, kaolinite samples collected along four vertical profiles within a Gleysol‐Ferralsol‐Podzol soil toposequence near São Gabriel da Cachoeira, NW Amazon Basin (Brazil) are dated using ...
Célia Regina Montes, Thierry Allard, Madeleine Sélo, Yves Lucas, Chloé Fourdrin, Öykü Ataytür, Débora Ayumi Ishida, Etienne Balan, Adolpho José Melfi   +8 more
wiley   +1 more source

Vegetation on Gibbsitic Soils in Hawaii

Journal of the Arnold Arboretum., 1960
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Moomaw, J C, Takahashi, M
openaire   +2 more sources

Effect of gibbsite in lithomargic clay on the mechanical and physical properties of limestone calcined clay cement

International Journal of Ceramic Engineering & Science
Cement, a non‐renewable yet essential commodity in the construction industry remains the most used material despite the high CO2 emissions associated with the production.
Clement Nyarko Opoku, Anthony Andrews, Martinson Addo Nartey, Eric Kwame Asare   +3 more
doaj   +1 more source

Clay mineralogy and magnetic susceptibility of Oxisols in geomorphic surfaces

Scientia Agricola, 2014
Studies analyzing the variability of clay minerals and magnetic susceptibility provide data for the delineation of site-specific management areas since many of their attributes are important to agronomy and the environment.
Livia Arantes Camargo, José Marques Júnior, Gener Tadeu Pereira, Angélica Santos Rabelo de Souza Bahia   +3 more
doaj   +3 more sources

Differences in Recycled Amendment Phosphorus Solubility and Transport When Interfaced to Soils of Dissimilar Characteristics

Soil Use and Management, Volume 42, Issue 2, April‐June 2026.
ABSTRACT Increasing phosphorus (P) fertilizer use efficiency from bio‐based waste products (i.e., recycled amendments) requires promoting a larger proportion of bioavailable P in soil for plant uptake. Therefore, this study aimed to elucidate how recycled amendment P solubility and movement vary when interfaced with soils of contrasting characteristics.
Aimée Schryer, Pietro Sica, Peter K. Leinweber, Emmanuel Frossard, Jolanda Reusser, Dorette Müller‐Stöver, Jakob Magid   +6 more
wiley   +1 more source

EFFECTS OF CLAY FRACTION MINERALOGY ON PHYSICAL ATTRIBUTES OF A YELLOW ULTISOL TREATED WITH CHISELING [PDF]

Engenharia Agrícola
The objective of this study was to evaluate the influence of minerals in the clay fraction on physical attributes of Yellow Ultisol cultivated with sugarcane and prepared with two different treatments: chiseling across the entire area and chiseling only ...
Deise C. S. Nogueira, Carolina Fernandes, Luma C. de Souza, Lívia A. Camargo, Antonio S. Ferraudo   +4 more
doaj   +2 more sources

GeAl2‐2xFe2xO3(OH)4 Nanotubes: New Electrocatalyst for Oxygen Evolution Reaction

Advanced Functional Materials, Volume 36, Issue 21, 12 March 2026.
Fe‐doped imogolite nanotubes are synthesized via a one‐step hydrothermal method with varying Fe substitution ratios x. Structural and spectroscopic analyses confirm homogeneous Fe incorporation while preserving tubular shape. Optimal doping at x = 0.05 enhances optical absorption, narrows band gap, reduces charge transfer resistance, and significantly ...
Yassine Naciri, Jian Li, Wahid Ullah, Fabien Baron, Franck Bourdelle, Stéphan Rouzière, Claire Goldmann, Erik Elkaim, Thomas Bizien, Rachid Belkhou, Delphine Vantelon, Mohamed Nawfal Ghazzal, Erwan Paineau   +12 more
wiley   +1 more source