Results 41 to 50 of about 1,390 (185)

Mineralogical and geochemical aspects of rare-earth elements behavior during metamorphism (on the example of the Upper Precambrian structural-material complexes of the Bashkir megaanticlinorium, South Urals)

Georesursy, 2020
The article provides new data on geochemistry and mineralogy of rare-earth elements (REE) in rocks of structural-material complexes of the Bashkir megaanticlinorium, which underwent metamorphic transformations of various nature: contact metamorphism ...
Sergey G. Kovalev, Andrey V. Maslov, Sergey S. Kovalev   +2 more
doaj   +1 more source

Synthesis of Monazite‐Borosilicate Glass Composites by the Ceramic Method

International Journal of Ceramic Engineering &Science, Volume 8, Issue 4, July 2026.
A glass‐ceramic composite containing crystallites of La0.5Gd0.5PO4 (monazite) dispersed in a borosilicate glass matrix was synthesized using a one‐step ceramic synthesis method. ABSTRACT Glass‐ceramic composites are promising heterogeneous materials for the immobilization of high‐level nuclear waste.
Ebenezer Arthur, Andrew P. Grosvenor
wiley   +1 more source

Late Campanian (74–71 Ma) Arabia–Eastern Anatolia Collision and Its Geodynamic Implications

Tectonics, Volume 45, Issue 7, July 2026.
Abstract The East Anatolian Plateau is a major collisional feature within the Tethyan realm formed as a late‐stage result of the collision between East Anatolia and the Arabian Platform. The timing of this collision is highly debated, with estimates from the Late Cretaceous to the Miocene.
Remziye Akdoğan, Xiumian Hu, Gültekin Topuz, Aynur Hakyemez, Rita Catanzariti, Anlin Ma, Yalçın E. Ersoy, İbrahim Uysal   +7 more
wiley   +1 more source

Economic evaluation of thorium oxide production from monazite using alkaline fusion method

Nuclear Engineering and Technology, 2021
Monazite is a phosphate mineral that contains thorium (Th) and rare earth elements. The Th concentration in monazite can be as high as 500 ppm, and it has the potential to be used as fuel in the nuclear power system.
Sanjith Udayakumar, Norlia Baharun, Sheikh Abdul Rezan, Aznan Fazli Ismail, Khaironie Mohamed Takip   +4 more
doaj   +1 more source

Quaternary Glacial Erosion of the Hohe Tauern, Eastern European Alps: Assessing the Resolution Potential of Low‐Temperature Thermochronology

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 7, July 2026.
Abstract Low‐temperature thermochronology records rock cooling, which results from (generally erosion‐driven) exhumation and/or other processes that alter the geotherm. Apatite (U‐Th)/He (AHe) thermochronology can record landscape changes associated with km‐scale erosion and has previously been used to assess Quaternary glacial incision in large ...
I. M. Wapenhans, P. A. van der Beek, M. Bernard, C. Colleps, L. Gong, A. Mariotti, E. Sobel, J. Amalberti, J. Glodny, J. Stammeier   +9 more
wiley   +1 more source

Phase Transformation Pathway of DyPO₄ to 21.5 GPa

Crystals, 2023
Interest in the deformation behavior and phase transformations of rare earth orthophosphates (REPO4s) spans several fields of science—from geological impact analysis to ceramic matrix composite engineering.
Jai Sharma, Henry Q. Afful, Corinne E. Packard   +2 more
doaj   +1 more source

Dynamic Deglacial Evolution of Interior Seaways and Ice Streams in the Weddell Sea Embayment

Paleoceanography and Paleoclimatology, Volume 41, Issue 7, July 2026.
Abstract Improving our understanding of Antarctic glacial dynamics is essential for accurately predicting ice sheet behavior and its contribution to global sea level rise under future climate scenarios. The Weddell Sea Embayment, which channels ice from East Antarctica, West Antarctica, and the Antarctic Peninsula into the Filchner‐Ronne Ice Shelf, is ...
M. R. Bollen, M. Gutjahr, P. Blaser, C. E. Ginnane, J. P. Klages, J. Müller, J. C. Turnbull, S. L. Jaccard   +7 more
wiley   +1 more source

U-Pb ISOTOPIC GEOCHRONOLOGY OF THE MONAZITE GNEISSES OF THE «ZELENOLEVADIVSKA SUITE» OF THE MIDDLE BUG REGION

Геологія і корисні копалини Світового океану, 2022
On the right bank of the South Bug river valley, opposite the village of Zelena Levada crystalline rocks are observed in separate scattered rock outcrops, more than 1 km long along the river bed. A bundle of hypersthene-biotite and biotite plagiogneisses
Stepanyuk L.M.
doaj   +1 more source

Variable Sr Diffusion and Implications for Rb–Sr Biotite Geochronology

Journal of Metamorphic Geology, Volume 44, Issue 6, Page 417-439, July 2026.
ABSTRACT The rubidium–strontium (Rb–Sr) system has a long pedigree as a geochronological tool that relies on the application of an isochron approach. In particular, biotite contains strongly radiogenic Rb–Sr isotopes, and thus can yield meaningful crystallisation or cooling ages via this approach. However, the response of the Rb–Sr system in biotite to
Riley Rohrer, Christopher L. Kirkland, Hugo Olierook, Tim Johnson, Katy Evans   +4 more
wiley   +1 more source

Two metamorphic cycles recorded by monazite in eclogite-facies gneisses (Southern Armorican Massif, France): A Cambro-Ordovician continental crust involved in eo-Variscan subduction

BSGF - Earth Sciences Bulletin
We present U-Th/Pb data obtained for xenotime and monazite from the polycyclic eclogite-facies para- and ortho-gneisses of the Les Essarts Unit (Vendée, southern Armorican Massif, France), which have recorded an HT-LP cycle ending with a first ...
Bosse Valérie, Godard Gaston, Devidal Jean Luc, Mallens Julie, Shea Thomas   +4 more
doaj   +1 more source