Results 51 to 60 of about 2,456 (203)

TYPOMORPHIC FEATURES OF MINERALS OF TI ORES FROM THE PIZHEMSKOE DEPOSIT [PDF]

Минералогия, 2016
The technology of production of concentrates of Ti minerals from ores of the Pizhemskoe deposit is improved and includes crushing, mechanical removal of slime films, desliming, gravitation concentration, classification, and magnetic separation.
A.B. Makeev
doaj  

Rare-Earth Orthophosphates From Atomistic Simulations

Frontiers in Chemistry, 2019
Lanthanide phosphates (LnPO4) are considered as a potential nuclear waste form for immobilization of Pu and minor actinides (Np, Am, and Cm). In that respect, in the recent years we have applied advanced atomistic simulation methods to investigate ...
Yaqi Ji, Yaqi Ji, Piotr M. Kowalski, Piotr M. Kowalski, Philip Kegler, Philip Kegler, Nina Huittinen, Nigel A. Marks, Victor L. Vinograd, Victor L. Vinograd, Yulia Arinicheva, Yulia Arinicheva, Yulia Arinicheva, Stefan Neumeier, Stefan Neumeier, Dirk Bosbach, Dirk Bosbach   +16 more
doaj   +1 more source

Impact‐diagnostic criteria for use in confirming a meteorite impact origin of terrestrial geological structures: Recommendations by the Impact Cratering Committee of the Meteoritical Society

Meteoritics &Planetary Science, Volume 61, Issue 7, Page 1538-1565, July 2026.
Abstract The framework of the Impact Cratering Committee (ICC) of the Meteoritical Society was approved in 2020, with the first committee members appointed in 2023. The ICC has a mandate to (1) approve, maintain, and update a database of confirmed terrestrial meteorite impact structures, (2) define and regularly update the criteria used for ...
A. J. Cavosie, S. Alwmark, D. Baratoux, G. Consolmagno, L. Ferrière, S. Goderis, N. Hauser, T. Kenkmann, C. Koeberl, G. R. Osinski, A. E. Pickersgill, M. Schönbächler   +11 more
wiley   +1 more source

OH defects in synthetic xenotime (YPO4)

European Journal of Mineralogy, 2016
The polarized infrared spectra of hydrogen-containing xenotime (YPO4) were measured to obtain information on its OH defects. Sample syntheses were conducted at 1.0 GPa using a piston-cylinder apparatus under water-saturated conditions. By lowering the temperature at a rate of 10°C/h from 1200 to 800 °C, xenotime single crystals up to ~300 μm in length ...
Takeyasu Abe, Takahiro Kuribayashi, Michihiko Nakamura   +2 more
openaire   +1 more source

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

International 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, Paige Murray, Lucas Greiner, Jade Beland, Charmayne Lonergan, Brian Riley, Krista Carlson   +6 more
wiley   +1 more source

Monazite and Xenotime U‐Pb Geochronology and Thermometry of the Blue Ridge and Inner Piedmont of North Carolina: Implications for the Thermal‐Metamorphic Evolution of the Southern Appalachian Metamorphic “Core”

Tectonics, Volume 45, Issue 5, May 2026.
Abstract The southern Appalachian orogen preserves a complex distribution of metamorphism and deformation varying in timing, magnitude, and spatial extent. These complexities give rise to disparate interpretations for southern Appalachian tectonic evolution, which complicates the testing and interpretation of tectonic models in this system.
Nicholas E. Powell, J. Ryan Thigpen, Brandon M. Spencer, Arthur J. Merschat, David P. Moecher, Calvin A. Mako, Robert D. Hatcher Jr., Harold H. Stowell, Andrew Kylander‐Clark   +8 more
wiley   +1 more source

Composition of metamict zircon from Mozambique [PDF]

Bulletin of the Geological Society of Finland, 1982
Nine specimens of metamict zircon from granite pegmatites of the district of Zambézia, Mozambique, have been analyzed by wet chemical methods and by X-ray fluorescence.
R. Törnroos
doaj   +1 more source

Occurrence of Rare Earth Elements in Deep-Sea Mud from the Western Pacific Ocean

Kuangchan zonghe liyong, 2022
Deep sea mud is a new type of rare earth elements resources with potential economical significance. However, the occurrence of Rare Earth Elements is contradictory. Through systematic study on mineralogy of the deep-sea mud from the Western Pacific Ocean,
Li Xu, Lingxi Zeng, Wenliang Xiong, Gaowen He, Jiangbo Ren, Fenlian Wang   +5 more
doaj   +1 more source

Provenance and Petrological Evolution of Sand Injection Complexes: Insights From Heavy Mineral Analysis in the Paleogene Forearc Succession of the San Joaquin Basin

Basin Research, Volume 38, Issue 3, May–June 2026.
The study of heavy mineral assemblages with statistical analysis resolves provenance signatures and quantifies syn‐emplacement modification of sand injection complexes. Results demonstrate transformative petrological processes, including density‐dependent hydraulic sorting and mechanical grain degradation.
Gustavo Zvirtes, Andrew Morton, Andrew Hurst, Ruy Paulo Philipp, Wiktor Luzinski, Giuseppe Palladino, Luciano Alessandretti   +6 more
wiley   +1 more source

SHRIMP Uranium-Lead Dating of Diagenetic Xenotime in Siliciclastic Sedimentary Rocks

, 1999
Diagenetic xenotime is common in siliciclastic sedimentary rocks, where it starts to form on detrital zircon shortly after sediment deposition. It is possible to estimate the age of sedimentary rocks by in situ uranium-lead analysis of that xenotime. Two
Neal J. McNaughton, Ian R. Fletcher, Birger Rasmussen   +2 more
core   +1 more source