Results 31 to 40 of about 416 (180)

Comparison of the defluoridation capacity of zeolites from Ethiopia and Mexico

Bulletin of the Chemical Society of Ethiopia, 2015
Fluorosis, either dental or skeleton, is often due to the high fluoride content of well waters. In this work, using solutions which contain different amounts of fluoride, natural zeolites from Ethiopia and Mexico were tested.
M. Adem, T. Sani, Y. Chebude, G. Fetter, P. Bosch, I. Diaz   +5 more
doaj   +1 more source

Genesis of diagenetic zeolites and their impact on reservoir formation in the Middle Permian Lower-Wuerhe Formation of the Mahu Sag, Junggar Basin, Northwest China

Energy Exploration & Exploitation, 2020
Zeolites are important diagenetic minerals in petroleum reservoirs and have complex impacts on reservoir quality. To highlight this critical and challenging issue, we conduct a case study in the Middle Permian Lower-Wuerhe Formation in the Mahu Sag ...
Jian Wang, Lu Zhou, Jin Liu, Erting Li, Benzhong Xian   +4 more
doaj   +1 more source

Goosecreekite from the Bulatovo stone quarry (South Urals): the first find in Russia [PDF]

Минералогия
A rare zeolite goosecreekite, CaAl2Si6O16 • 5H2O, was found for the first time in Russia in granitic pegmatites of the Bulatovo stone quarry (Chelyabinsk region, South Urals).
A.V. Kasatkin, N.V. Chukanov, V.A. Popov, A.M. Kuznetsov   +3 more
doaj   +1 more source

Removal of Heavy Metals from Aqueous Solution using Clinoptilolite and Stilbite [PDF]

, 2014
Heavy metals are highly toxic and they must be removed from the polluted streams. Аdsorption by zeolites is currently considered to be very suitable for wastewater treatment because of its simplicity and cost effectiveness.
Zendelska, Afrodita, Krstev, Boris, Golomeova, Mirjana, Blažev, Krsto, Golomeov, Blagoj   +4 more
core  

The Occurrence and Morphology of Naturally Occurring Respirable Mordenite Mineral Fibres in New Zealand

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.
Mordenite is a naturally occurring zeolite mineral that is the seventh most common zeolite mineral globally, forming at low temperatures (≥100°C) in hydrothermal systems. In New Zealand, extensive deposits of mordenite are commonly associated with areas of hydrothermal alteration, particularly in the Coromandel and Taupo Volcanic Zones.
Ayrton R. Hamilton, Martin S. Brook, Anushka Elangasinghe, Debra Chappell, Janki P. Patel, Satendra Kumar, Rod Martin   +6 more
wiley   +1 more source

The Effect of Temperature and Physical State of Water on the Frictional Properties of Chlorite‐Altered Basaltic Gouges (Krafla Geothermal Field, Iceland)

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
Abstract Changes in the physical state of water may alter fault frictional properties in high‐temperature geothermal systems, yet they have been little studied. Here, we perform slide‐hold‐slide experiments to examine the frictional properties (frictional strength μss and frictional healing Δμ) of chlorite‐altered basalt from Krafla Geothermal Field ...
W.‐H. Wu, W. Feng, R. Gomila, T. Tesei, A. K. Mortensen, G. Di Toro   +5 more
wiley   +1 more source

Scientific results from the deepened Lopra-1 borehole, Faroe Islands: The regional distribution of zeolites in the basalts of the Faroe Islands and the significance of zeolites as palaeotemperature indicators [PDF]

Geological Survey of Denmark and Greenland Bulletin, 2006
The first maps of the regional distribution of zeolites in the Palaeogene basalt plateau of the Faroe Islands are presented. The zeolite zones (thomsonite-chabazite, analcite, mesolite, stilbite-heulandite, laumontite) continue below sea level and reach ...
Jørgensen, Ole
doaj  

X‐ray computed tomography study of terrestrial analog cores in preparation for Mars sample return

Meteoritics &Planetary Science, Volume 61, Issue 3, Page 405-426, March 2026.
Abstract Mars Sample Return (MSR) is expected to transform planetary science by providing unprecedented access to pristine Martian material. Initial characterization in the sample receiving facility (SRF) will rely on nondestructive techniques such as X‐ray computed tomography (XCT) to document the condition, distribution, and internal features of ...
Sophie Benaroya, Christopher D. K. Herd, David T. Flannery, Nicolas Randazzo   +3 more
wiley   +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

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