Results 41 to 50 of about 596 (160)

Tracing a Wet Past and Diverse Provenances in Gale Crater, Mars, With Lithium Content Using ChemCam on the Curiosity Rover

Journal of Geophysical Research: Planets, Volume 131, Issue 2, February 2026.
Abstract The incompatible behavior of Lithium during magmatic differentiation and high mobility during aqueous alteration make it a valuable tracer of crustal processes on Mars. Its preferential incorporation into secondary phyllosilicates further links Li to clay‐forming environments, which are critical for evaluating past aqueous activity and ...
K. W. Nikolajsen, J. Frydenvang, E. Dehouck, R. C. Wiens, P. J. Gasda, L. Le Deit, G. Caravaca, C. C. Bedford, A. Ollila, A. Cousin, S. Maurice, O. Gasnault, N. L. Lanza   +12 more
wiley   +1 more source

Adsorption of Protamine and Papain Proteins on Saponite

Clays and Clay Minerals, 2008
AbstractDue to the increased importance of bionanocomposites, protamine and papain proteins were adsorbed on Na+- and on Cs+-exchanged saponite from aqueous solution. Protein analysis of equilibrium solutions and thermogravimetric analyses of biocomposites were used to prepare adsorption isotherms.
Szabo, Tamas, Mitea, Raluca, Leeman, Hugo, Premachandra, Gnanasiri S, Johnston, Cliff T, Szekeres, Marta, Dekany, Imre, Schoonheydt, Robert A   +7 more
openaire   +4 more sources

Rapid terrestrial weathering of the CI1 carbonaceous chondrite find Oued Chebeika 002

Meteoritics &Planetary Science, Volume 61, Issue 2, Page 211-223, February 2026.
Abstract Alteration of historic CI1 meteorite falls during their curation demonstrates the susceptibility of smectite‐rich carbonaceous chondrites to terrestrial exposure. The discovery of Oued Chebeika 002 in Morocco in June 2024 presents a unique opportunity to document the earliest stages of weathering of a CI1 find.
Martin R. Lee, Jasper Glazer
wiley   +1 more source

Hydrothermal Valorization of Steel Slags—Part I: Coupled H2 Production and CO2 Mineral Sequestration

Frontiers in Energy Research, 2017
A new process route for the valorization of BOF steel slags combining H2 production and CO2 mineral sequestration is investigated at 300°C (HT) under hydrothermal conditions.
Camille Crouzet, Camille Crouzet, Camille Crouzet, Fabrice Brunet, German Montes-Hernandez, Nadir Recham, Nathaniel Findling, Jean-Henry Ferrasse, Bruno Goffé   +8 more
doaj   +1 more source

Physico-Chemical Characterization and Antimicrobial Properties of Hybrid Film Based on Saponite and Phloxine B

Molecules, 2021
This research was aimed at the preparation of a hybrid film based on a layered silicate saponite (Sap) with the immobilized photosensitizer phloxine B (PhB).
Nitin Chandra teja Dadi, Matúš Dohál, Veronika Medvecká, Juraj Bujdák, Kamila Koči, Anna Zahoranová, Helena Bujdáková   +6 more
doaj   +1 more source

Ferromagnesian Clay Diversity Across Mars' Crustal Dichotomy: A Window Into Early Aqueous Environments

Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract Extensive research over the past two decades has shown that early Mars likely had a warmer, wetter climate with widespread water activity. Ferromagnesian (Fe,Mg‐rich) clay deposits are compelling markers of these ancient environments, helping reconstruct Mars' hydrologic evolution, assess past habitability, and guide future exploration.
Jeremy Brossier, Francesca Altieri, Maria Cristina De Sanctis, Alessandro Frigeri, Marco Ferrari, Simone De Angelis, Enrico Bruschini, Monica Rasmussen, Janko Trisic Ponce   +8 more
wiley   +1 more source

Nondestructive analysis of Bennu samples toward comparative studies with Ryugu samples

Meteoritics &Planetary Science, Volume 61, Issue 1, Page 3-16, January 2026.
Abstract Analyzing primitive extraterrestrial samples from asteroids is key to understanding the evolution of the early solar system. The OSIRIS‐REx mission returned samples from the B‐type asteroid Bennu, providing a valuable opportunity to compare them with the Ryugu samples collected by the Hayabusa2 mission.
Ryota Fukai, Masahiro Nishimura, Koki Yumoto, Yuichiro Cho, Yuta Shimizu, Moe Matsuoka, Eri Tatsumi, Soichiro Furukawa, Ryosuke Sakurai, Toru Yada, Kentaro Hatakeda, Kasumi Yogata, Yuma Enokido, Rui Tahara, Akiko Miyazaki, Seiya Kawasaki, Rei Kanemaru, Seiji Sugita, Shoki Mori, Shumpei Nakahara, Yuta Aikyo, Hideaki Miyamoto, Cedric Pilorget, Damien Loizeau, Laura Nardelli, Rachel Sheppard, Cateline Lantz, Lucie Riu, Jean‐Pierre Bibring, Rosario Brunetto, Tatsuaki Okada, Masanao Abe, Tomohiro Usui   +32 more
wiley   +1 more source

Occurrence and characterization of nanosulfide‐rich regions on asteroid Ryugu: Insights from mackinawite and pyrrhotite

Meteoritics &Planetary Science, Volume 61, Issue 1, Page 168-181, January 2026.
Abstract Samples returned from asteroid Ryugu by the Hayabusa2 mission are dominated by fine‐grained matrix material made of phyllosilicates and nanosulfides. Here, we report the mineralogical, textural, and chemical characteristics of nanosulfide‐rich regions identified in Ryugu particles.
Roberto Conconi, Hugues Leroux, Maya Marinova, Sylvain Laforet, Damien Jacob, Léna Jossé, Alice Aléon‐Toppani, Zélia Dionnet, Rosario Brunetto, Corentin Le Guillou   +9 more
wiley   +1 more source

Palagonitization of Volcanic Rocks in Polar Climates: The Case of Deception Island (Antarctica)

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.
Abstract A detailed study of palagonitization in rocks from Deception Island—one of Antarctica's most active volcanoes—has been performed to advance our understanding of this alteration process. A detailed petrographic (optical and SEM), mineralogical (XRD), and mineral and glass spot geochemistry (EDS and EMP) characterization has been conducted on ...
Oriol Vilanova‐Pagès, Guillem Gisbert, Helena Albert, Adelina Geyer, Meritxell Aulinas, Raquel Arasanz, Jordi Ibañez‐Insa, Antonio Polo‐Sánchez, Antonio Álvarez‐Valero, Olga Prieto‐Ballesteros, Santiago Giralt   +10 more
wiley   +1 more source

Oxygen Sensing by the Hybrid Langmuir-Blodgett Films of Iridium(III) Complexes and Synthetic Saponite on the Basis of Energy Transfer

Chemosensors, 2017
An ultra-thin hybrid film of amphiphilic iridium(III) complexes and synthetic saponite was manipulated by means of the modified Langmuir-Blodgett method.
Hisako Sato, Kenji Tamura, Akihiko Yamagishi   +2 more
doaj   +1 more source