Results 51 to 60 of about 1,867 (153)

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

HYDROTHERMAL SYNTHESIS AND CHARACTERIZATION OF VANADIUM SILICATE MOLECULAR SIEVES WITH ANALCIME, MAGEDIITE AND ZSM-11 STRUCTURE [PDF]

Journal of Sciences, Islamic Republic of Iran, 2002
Vanadium silicates such as V-Al-analcime, V-analcime, V-magediite and V-ZSM-11 were synthesized using vanadium pentoxide or vanadyl sulfates. Vanadium silicates with analcime structure with and without aluminum (V-Al-analcime, V-analcime) were prepared ...
doaj  

Structural analysis of the natural clinker-based analcime (NC-ANA) by X-ray powder diffraction and solid-state 29Si and 27al nuclear magnetic resonance spectroscopy

Revista Facultad de Ingeniería Universidad de Antioquia, 2012
The natural clinker-based analcime (NC-ANA) framework was synthesized by the conventional hydrothermal alkaline activation method. The synthesized zeotype was characterized by X-ray powder diffraction (XRPD) analysis and solid-state 29Si and 27Al ...
Mario Alberto Macías López, José Antonio Henao Martínez, Carlos Alberto Ríos Reyes   +2 more
doaj   +1 more source

Adsorptive Elimination of Heavy Metal Ions From Wastewater Utilizing Natural and Synthetic Zeolites: Mechanistic Analysis, Modification Techniques, and Performance Assessment

Journal of Chemistry, Volume 2026, Issue 1, 2026.
Heavy metal contamination in wastewater remains a critical environmental challenge due to the persistence and toxicity of metal ions such as Pb2+, Cd2+, Cr3+/Cr6+, Cu2+, Ni2+, and Zn2+. Although conventional treatment technologies can achieve high removal efficiencies, their practical application is often limited by high operational costs, energy ...
Kenson Mutai Muchiri, Genson Murithi, John Kiratu, Robin Simiyu, Munmun Bardhan   +4 more
wiley   +1 more source

Mechanochemistry for Metal–Organic Frameworks and Covalent–Organic Frameworks (MOFs, COFs): Methods, Materials, and Mechanisms

Advanced Materials, Volume 37, Issue 52, December 29, 2025.
An overview is provided of the mechanochemistry of metal‐organic frameworks (MOFs) and covalent‐organic frameworks (COFs), highlighting opportunities and strategies for discovery, synthesis and reactivity studies of these materials. Mechanistic studies and comparisons to the mechanochemistry of organic solids are outlined, showcasing how advances in ...
Joseph M. Marrett, Farshid Effaty, Xavier Ottenwaelder, Tomislav Friščić   +3 more
wiley   +1 more source

DISTRIBUTION AND GENESIS OF NEOFORMED MINERALS IN KOYUNAĞILI (MIHALIÇÇIK-ESKİŞEHİR) AREA

Bulletin of the Mineral Research and Exploration, 1996
- The study area is located at the Southwest of Koyunağılı village situated in the south margin of the BeypazarıQayirhan basin which is in the Middle Sakarya Massif.
Selahattin KADİR
doaj  

The Enamelled Tiles of Olite’s Castle (Spain): Characterization, Provenance, and Manufacture Technology

Crystals
The objective of this study was to determine the authorship, provenance, and technology of the mudejar enamelled tiles from the Olite Castle (northern Spain, 14th century). According to previous knowledge, Olite’s enamelled tiles had been manufactured in
Iván Ruiz-Ardanaz, Esther Lasheras, Adrián Durán   +2 more
doaj   +1 more source

Mineralogical dataset of natural zeolites from Lessini Mounts, Northern Italy: Analcime, natrolite, phillipsite and harmotome chemical composition

Data in Brief, 2020
This dataset article contains mineralogical and chemical data of some natural zeolites such as analcime, natrolite, phillipsite and harmotome. These minerals were found as secondary phases within vesicles and veins in the basaltic rocks of the Lessini ...
Michele Mattioli, Marco Cenni
doaj   +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

Modern biotechnology in optimizing plant waste utilization

Інтродукція Рослин, 2020
The study aimed to develop a modern, cheap, and environmentally safe technology for the disposal of plant waste, with the participation of the most active microorganisms-destructors.
Nataliia Zaimenko, Bohdana Ivanytska, Nataliia Pavliuchenko, Olexandr Slyusarenko, Lijuan Tian, Tianlin Miao, Dejiang Liu, Myron Pyzyk, Jan Slaski   +8 more
doaj   +1 more source