Results 51 to 60 of about 2,018 (200)

CONVERSION OF THE LOW QUALITY INDONESIAN NATURALLY-OCCURRING MINERALS INTO SELECTIVE TYPE OF ZEOLITES BY SEED-ASSISTED SYNTHESIS METHOD

Indonesian Journal of Chemistry, 2013
An X-ray diffraction (XRD) revealed that Indonesian naturally-occurring mineral from Nanggung, Bogor shows to be a low quality product as it does not seem to contain any zeolite materials.
Rino R. Mukti, Shofarul Wustoni, Agus Wahyudi, Ismunandar Ismunandar   +3 more
doaj   +1 more source

Characteristics of the structure of natural zeolites and their potential application in catalysis and adsorption processes

Technical Transactions, 2020
Authors present a short review of selected natural-origin zeolite materials. This article discusses the structure, classification and ability to modify natural zeolites, along with examples of their potential applications as adsorbents or catalysts.
Sobuś Natalia, Czekaj Izabela, Diichuk Volodymyr, Kobasa Igor M.   +3 more
doaj   +1 more source

Investigating Technology and Raw Materials Source of the Archaic and Classical Architectural Terracottas From the Athenaion in Castro (Apulia, Italy)

Archaeometry, Volume 68, Issue 3, Page 512-526, June 2026.
ABSTRACT Since 2000, archaeological excavations have brought to light the sanctuary of Athena in Castro (Apulia, Italy), including terracotta roofs dated between the 6th and 4th centuries bce. Based on their morphological and stylistic features, it is suggested that the terracotta items were manufactured in the Greek colony of Taras (modern Taranto ...
M. M. N. Franceschini, T. Ismaelli, S. Vettori, L. Chelazzi, S. Ciattini, F. Di Benedetto, C. Grifa, E. Cantisani   +7 more
wiley   +1 more source

Volcanic History of Rodrigues Island and Its Relationship With the Central Indian Ridge and the Réunion Hotspot

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 4, April 2026.
Abstract Many intraplate volcanic chains are explained as hotspot trails formed by plate motion over mantle plumes, yet some deviate from this model. The Rodrigues Ridge, a volcanic lineament extending eastward from the Réunion hotspot track toward the Central Indian Ridge (CIR), is one such case.
Julien Seghi, Vincent Famin, Xavier Quidelleur, Loraine Gourbet, Martin Danišík, Axel K. Schmitt, François Nauret, Sidonie Revillon, Maëlis Arnould, Laurent Michon, Reshad Jhangeer‐Khan   +10 more
wiley   +1 more source

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

Electric Discharge - Not an Impact Caused Formation of Upheaval Dome, Canyonlands National Park, Utah (Extended) [PDF]

Journal of Systemics, Cybernetics and Informatics, 2020
This paper will provide an argument that Upheaval Dome, Canyonlands National Park, Utah, USA is a product of Electrical Discharge Machining (EDM). Currently two theories remain from a myriad of possible theories for the site's formation, the first being ...
Robert Hawthorne Jr.
doaj  

Occurrence and origin of analcime in a Neogene volcano-sedimentary lacustrine environment, Beypazari-Cayirhan basin, Ankara, Turkey

, 2006
Analcime is a common mineral in the Middle-Upper Miocene sedimentary and volcano-sedimentary units of the Beypazari-C ayirhan basin that comprise claystone, sandstone, limestone, dolomite, tuff and altered tuff.
Karakas, Zehra, Kadir, Selahattin
core   +1 more source

Precipitation mechanism of anhydrite cement in lacustrine tight sandstone: Implications for fluid activity, mass transfer and pore origin of open diagenetic system in tight sandstone

The Depositional Record, Volume 12, Issue 1, February 2026.
This paper discusses a new model concerning the precipitation mechanismand significance of anhydrite cement in tight sandstone. Anhydrite cement ismainly formed by the dissolution and reprecipitation of early‐diageneticcalcite cements, feldspars and volcanic rock fragments at the mesodiageneticstage.
Long Luo, Meng Li, Shanzheng Tan, Xianfeng Tan, Xin Yu, Jon Gluyas, Jia Wang, Wei Jiang, Xuejiao Qu, Kangjun Wu, Yiting Gu   +10 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