Results 61 to 70 of about 9,771 (218)

Actinide Microdistributions Within Monazite

, 1984
The results of an induced fission track mapping study of uranium in 12 pegmatitic monazite samples indicate that as the U concentration in monazite surpasses ca.
A. Kaufman, E. W. Jalajas, T.-L. Ku
core   +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

An Integrative Approach Toward Bio‐Inspired Sequestration of Rare Earth Elements

ChemSusChem, Volume 19, Issue 16, 27 August 2026.
The binding behavior of EF‐hand 4 of calmodulin toward different lanthanide ions was studied using a combination of spectroscopic and computational methods. A resin‐immobilized peptide demonstrated its potential as a selective and sustainable filter material for lanthanide separation.Lanthanides (Ln) are essential for renewable energy technologies, yet
Yulia Perevedentseva, Lukas Waurick, Dini Marlina, Gerda Techert, Yannic Müllers, Franziska Lederer, Heiko M. Möller, Michael U. Kumke, Ulrich Glebe, Björn Drobot   +9 more
wiley   +1 more source

Exhumation History of the Sangre de Cristo Range, Colorado, From Mid‐ to Low‐Temperature Thermochronology: New Insights Into Laramide Contraction and Oligocene–Miocene Extension in the Northern Rio Grande Rift, USA

Tectonics, Volume 45, Issue 8, August 2026.
Abstract The Sangre de Cristo Range in southern Colorado records a complex tectonic history that includes Late Cretaceous–Eocene Laramide contraction and Oligocene–Quaternary Rio Grande rift extension. We present new thermochronologic data (40Ar/39Ar, fission‐track, (U‐Th)/He) and thermal history models that provide insight into this polyphase history ...
John Singleton, Samantha Malavarca, Alexis K. Ault, Omar Ghamedi, M. Cole Sitar, Paul O’Sullivan, Martin Wong, Jonathan Saul Caine, James Metcalf, Dylan Frawley, Jeffrey M. Rahl   +10 more
wiley   +1 more source

The influence of strontium content and sintering temperature on monazite stability [PDF]

Science of Sintering
This paper shows a simple way to synthesize a series of Ce1-xSrxPO4 ceramic materials using acetate solutions of Ce and Sr instead of nitrate which were used so far.
Mirković Miljana, Maletaškić Jelena, Butulija Svetlana, Anđelković Ljubica, Šuljagić Marija   +4 more
doaj   +1 more source

The Ames impact structure, Oklahoma: New radioisotopic constraints and implications for North American impact chronology

Meteoritics &Planetary Science, Volume 61, Issue 8, Page 2103-2139, August 2026.
Abstract The Ames impact structure (Oklahoma) is thought to have formed during the Ordovician Meteor Event, based on conodont biostratigraphy of its crater fill. Here, U–Pb zircon dates from its impact‐melt portion, conducted using secondary ion mass spectrometry and laser ablation–inductively coupled plasma–mass spectrometry (n = 37 spots), yield a ...
Elizabeth J. Catlos, Andrew F. Parisi, Michael E. Brookfield, Timmons Erickson, Sean P.S. Gulick, Axel K. Schmitt, Daniel F. Stockli, Daniel P. Miggins, Ben Ruchte, Mark Cloos   +9 more
wiley   +1 more source

Triassic mineralization with Cretaceous overprint in the Dahu Au-Mo deposit, Xiaoqinling gold province: Constraints from SHRIMP monazite U-Th-Pb geochronology

, 2011
The Xiaoqinling terrane in central China is the second largest gold producing area in China. Previous application of age constraints has yielded ages for the gold mineralization ranging from Paleoproterozoic.
Zeng, Q., Chen, YJ, Li, N, Chen, Y., Chen, Yan-Jing, Nuo Li, Fletcher, Ian, Zeng, Qing-Tao, Yan-Jing Chen, Zeng, QT, Li, Nuo, Fletcher, Ian R., Ian R. Fletcher, Li, N., Qing-Tao Zeng, Fletcher, IR   +15 more
core   +1 more source

Age of cleft monazites in the eastern Tauern Window: constraints on crystallization conditions of hydrothermal monazite [PDF]

, 2015
Monazite-bearing Alpine clefts located in the Sonnblick region of the eastern Tauern Window, Austria, are oriented perpendicular to the foliation and lineation. Ion probe (SIMS) Th–Pb and U–Pb dating of four cleft monazites yields crystallization ages of
Janots, Emilie, Gnos, Edwin, Berger,Alfons, Berger, Alfons, Janots,Emilie, Walter, F., Walter,Franz, Pettke, Thomas, Bergemann, C., Whitehouse, M., Gnos,Edwin, Whitehouse,Martin, Pettke,Thomas, Bergemann,Christian   +13 more
core   +1 more source

Textures d'altération dans une monazite de Norvège

, 2005
Textures d'altération en électrons rétrodiffusés au MEB dans une monazite de Norvège. Ces textures sont interprétées comme des réactions d'altération par dissolution-précipitation couplée en présence de fluides conduisant au remplacement partiel de la ...
Seydoux-Guillaume, Anne-Magali
core   +4 more sources

COM-1 and Hongcheon: New monazite reference materials for the microspot analysis of oxygen isotopic composition

Journal of Analytical Science and Technology, 2022
Background Monazite, a moderately common light rare earth element (LREE) and thorium phosphate mineral, has chemical, age, and isotopic characteristics that are useful in the investigation of the origin and evolution of crustal melts and fluid-rock ...
Jeongmin Kim, Changkun Park, Keewook Yi, Shinae Lee, Sook Ju Kim, Min-Ji Jung, Albert Chang-sik Cheong   +6 more
doaj   +1 more source