Results 61 to 70 of about 1,390 (185)

Peixe Zircon as a Quality Control Reference Material in U‐Pb Geochronology by LA‐ICP‐MS

open access: yesGeostandards and Geoanalytical Research, Volume 50, Issue 2, Page 369-389, June 2026.
Key Points Peixe#0 zircon was characterised for U‐Pb geochronology using CA‐ID‐TIMS, SIMS and a long‐term LA‐ICP‐MS data set. The consistent results establish Peixe#0 as a reference material for U‐Pb quality control. Trace element heterogeneity requires careful, CL‐guided spot selection.
Margareth Sugano Navarro   +7 more
wiley   +1 more source

POTENSI ANCAMAN HILANGNYA KANDUNGAN MINERAL ALAMI (TENORM) DI WILAYAH PENGHASIL TAMBANG KABUPATEN BANGKA TENGAH

open access: yesJTSL (Jurnal Tanah dan Sumberdaya Lahan)
The community in Central Bangka Regency carried out an increase in illegal mining in 2021, which could potentially threaten the loss of strategic natural resources.
Jhoni Hardiansyah   +2 more
doaj   +1 more source

Jadeite in Continental Subduction: Its Preservation, Breakdown and Pseudomorphic Replacement in Erzgebirge UHP Gneisses

open access: yesJournal of Metamorphic Geology, Volume 44, Issue 5, Page 376-393, June 2026.
ABSTRACT The absence of jadeite in regions where subduction of continental crust has been documented by other high‐pressure (HP) or ultrahigh‐pressure (UHP) minerals is striking. This study presents only the second discovery of jadeite in the crystalline rocks of the Erzgebirge, a region known for its occurrences of microdiamond, coesite and omphacite ...
Ondrej Lexa   +3 more
wiley   +1 more source

Evaluation of Iron‐Phosphate Glass–Ceramic Waste Form for Electrorefiner Salt Waste Simulant Dechlorinated With Phosphoric Acid

open access: yesInternational Journal of Ceramic Engineering &Science, Volume 8, Issue 3, May 2026.
This work investigates the formation of high‐alkali‐iron‐phosphate glass–ceramic waste forms made from the dechlorinated product of a phosphoric acid‐based process. The salt simulant is mixed with H3PO4 to form a slurry, heated, and then the dechlorinated product is vitrified with glass formers to obtain the final waste form. ABSTRACT The importance of
Harmony Werth   +6 more
wiley   +1 more source

Rare earth elements and yttrium minerals in altered granite-porphyry and hosting high-alumina schists in the Pellapahk Cu-Mo occurrence (Kolmozero-Voronya Belt)

open access: yesVestnik MGTU
Rare Earth Elements (REE) and yttrium phosphates monazite-(Ce) and xenotime-(Y), fluorine carbonates synchysite-(Ce) and parisite-(Ce), silicate allanite-(Ce) have been studied in the metamorphic rocks in the area of the Pellapahk Cu-Mo porphyry ...
Kalinin A. A.   +2 more
doaj   +1 more source

High-Pressure Elastic, Vibrational and Structural Study of Monazite-Type GdPO4 from Ab Initio Simulations

open access: yesCrystals, 2018
The GdPO4 monazite-type has been studied under high pressure by first principles calculations in the framework of density functional theory. This study focuses on the structural, dynamical, and elastic properties of this material.
Alfonso Muñoz   +1 more
doaj   +1 more source

Adsorption of octylhydroxamate on monazite.

open access: yesShigen-to-Sozai, 1989
Adsorption isotherms of octylhydroxamate and the relationship between octylhydroxamate adsorbed and phosphate released have beenmeasured against monazite. These results have been compared to those against synthetic CePO4and LaPO4. Adsorption of hydroxamate on monazite takes as long as several daysto reach equilibrium.
MATSUOKA, Isao, SASAKI, Shoji
openaire   +2 more sources

Geochronology of lithium-bearing granitoids of ingul megablock (Ukrainian shield)

open access: yesВісник Київського національного університету імені Тараса Шевченка. Серія Геологія, 2018
Rare-metal elements are strategic metals which, in general, are extremely important for economic development or maintenance of defence capability of any country at the modern level.
L. Stepanyuk   +6 more
doaj   +1 more source

Spectrophotometric determination of erbium using kojic acid dye in different rare earth concentrates

open access: yesEgyptian Journal of Petroleum, 2018
A sensitive and selective spectrophotometric method was studied for the determination of erbium (Er) with kojic acid dye (koj) and cetylpyridinium chloride (CPC) as a cationic surfactant from Egyptian monazite and xenotime concentrates using third ...
A.A. Abdou   +4 more
doaj   +1 more source

Monazite LA-ICP-MS U-Pb Dating to Constrain the Metamorphic Age of the Muzidian Gneiss Complex in the Northern Dabie Orogen

open access: yesYankuang ceshi
The Muzidian gneiss complex (MGC) in the Northern Dabie Orogen is the oldest exposed rock formation in the South China block. However, there is still a lack of research on its metamorphic age and tectonic implications.
Xiaofei QIU   +8 more
doaj   +1 more source

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