Results 91 to 100 of about 35,501 (220)

Experimental study of smectite interaction with metal iron at low temperature: 1. Smectite destabilization. [PDF]

, 2005
Interaction between metal Fe and a variety of natural and synthetic smectite samples with contrasting crystal chemistry was studied by scanning electron microscopy and X-ray diffraction from experiments conducted at 80°C. These experiments demonstrate an
Bauer, Andreas, Jullien, Michel, Lanson, Bruno, Lantenois, Sébastien, Muller, Fabrice, Plançon, Alain   +5 more
core   +4 more sources

Soil Organic Matter Stabilization by Polyvalent Cations in a Buried Alkaline Soil

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 2, February 2026.
Abstract Buried paleosols can store large quantities of organic carbon (C), much of which persists for millennia due to isolation from surface processes that promote decomposition. Subsoil organic matter (SOM) persistence is often enhanced by mineral associations and ionic conditions—particularly high clay content and polyvalent cations—that limit ...
Manisha Dolui, Teneille Nel, Stephanie Chacon, Laura M. Phillips, Abbygail R. McMurtry, Kimber Moreland, Karis McFarlane, Joseph A. Mason, Erika Marin‐Spiotta, Marie‐Anne de Graaff, Teamrat Ghezzehei, Asmeret Asefaw Berhe   +11 more
wiley   +1 more source

Frictional Instabilities and Carbonation of Basalts Triggered by Injection of Pressurized H2O- and CO2- Rich Fluids [PDF]

, 2018
The safe application of geological carbon storage depends also on the seismic hazard associated with fluid injection. In this regard, we performed friction experiments using a rotary shear apparatus on precut basalts with variable degree of hydrothermal ...
Andrea, Marzoli, Elena, Spagnuolo, Francois, Passelegue, Giacomel, Piercarlo, Giulio Di Toro,, Nasrrddine, Youbi, Nazzari, Manuela   +6 more
core   +1 more source

Pliocene–Pleistocene Redox Evolution of the Peruvian Margin: A Multi‐Proxy Approach

Paleoceanography and Paleoclimatology, Volume 41, Issue 2, February 2026.
Abstract Due to upwelling of nutrient‐rich waters, the Peruvian Margin is one of the most productive regions of the global ocean, hosting one of the most pronounced and shallowest oxygen minimum zones. This combination of high productivity and low oxygen makes the Peruvian margin a critical site for reconstructing past environmental changes.
P. L. Fraga‐Ferreira, C. Siebert, M. F. Lehmann, M. Frank, F. Scholz   +4 more
wiley   +1 more source

Timing and Style of Tectonic Assembly and Exhumation of the McHugh Complex Within the Chugach‐Kodiak Accretionary Wedge, Alaska

Tectonics, Volume 45, Issue 2, February 2026.
Abstract Accretionary complexes are key archives of subduction zone processes, preserving records of forearc growth, deformation, and tectonic reorganization. The Chugach–Kodiak accretionary complex of southern Alaska records Jurassic to Cretaceous underplating at shallow to intermediate subduction conditions. The McHugh Complex, an imbricated sequence
Ismay Vénice Akker, Whitney M. Behr, Maria Giuditta Fellin, Emily Hinshaw, Luiz Morales, Zoe Braden, Mark Helper, Lonnie J. Hufford, Markus Rast, Lorenzo Tavazzani   +9 more
wiley   +1 more source

Extração de ferro de esmectita brasileira com emprego do método ditionito-citrato-bicarbonato Iron extraction from Brazilian smectite by dithionite-citrate-bicarbonate method

Química Nova, 2000
A natural clay from Campina Grande region (Paraíba, Brazil), with 8.57% of Fe2O3, was used to study the most appropriate condition to carry out the iron extraction, without altering the clay structure in a significant way.
Sidnei Quezada M. Leite, Carlos Henrique A. Colodete, Lídia Chaloub Dieguez, Rosane A. S. San Gil   +3 more
doaj   +1 more source

Characterization of 27 mycotoxin detoxifiers and the relation with in vitro zearalenone binding [PDF]

, 2014
Addition of mycotoxin detoxifiers to feed is a common practice to counteract the deleterious effects of mycotoxins on animal health. Although a variety of this kind of feed additives is available on the market, little is known about their detailed ...
Broekaert, Nathan, Croubels, Siska, De Backer, Patrick, De Mil, Thomas, De Saeger, Sarah, Devreese, Mathias, Eeckhout, Mia, Fraeyman, Sophie, Haesaert, Geert, Van Ranst, Eric   +9 more
core  

Weathering of the Ethiopian volcanic province: a new weathering index to characterize and compare soils [PDF]

, 2015
© Walter de Gruyter Berlin/Boston 2015.Soil formation occurs through numerous physical and chemical weathering processes acting to alter the parent rock on the Earths surface.
Baxter, PJ, Berhanu, T, Cuadros, J, Davey, G, Le Blond, JS, Molla, YB, Umer, M   +6 more
core   +1 more source

Sustainable Water Systems in Space: A Review of Current Technologies and Future Prospects

Water Resources Research, Volume 62, Issue 2, February 2026.
Abstract Sustainable water management is a critical challenge in space exploration, where the limited availability of resources requires innovative approaches to ensure astronauts' survival on long‐duration missions. This narrative review explores the key technologies and methods involved in water recycling, in situ resource utilization (ISRU), and ...
David Bamidele Olawade, James O. Ijiwade, Ojima Zechariah Wada   +2 more
wiley   +1 more source

Mineralogia e geoquímica da ocorrência de palygorskita de Alcântara, bacia de S. Luís-Grajaú, Maranhão Mineralogy and geochemistry of occurrence of palygorskite of Alcântara, S. Luís-Grajaú basin, Maranhão, Brazil

Cerâmica, 2011
A Formação Alcântara (bacia de São Luis-Grajaú, região de Alcântara, MA) é constituída por pelitos, arenitos e dolomitos. Esses litotipos representam uma sucessão progradacional de depósitos de laguna/washover e canal de maré sobrepondo-se a depósitos de
K. B. Amorim, R. S. Angélica
doaj   +1 more source