Results 41 to 50 of about 2,512,027 (122)

Exploring the Degradation Behavior of Ce-Monazite in Water Solution through Adsorption and Penetration Kinetics

open access: yes, 2020
Monazite (LnPO(4), Ln = La-Gd) is an important light lanthanide phosphate for the application of ionic conductors, coatings, and diffusion barriers and the safe disposal of high-level radioactive wastes, and thus evaluating its chemical durability is ...
Li, YuXiang,   +3 more
core   +1 more source

Monazite transformation into Ce- and La-containing oxalates by Aspergillus niger [PDF]

open access: yes, 2020
Monazite is a naturally-occurring lanthanide (Ln) phosphate mineral [Lnx (PO4 )y ] and is the main industrial source of the rare earth elements (REE), cerium and lanthanum.
Csetenyi, Laszlo; id_orcid   +5 more
core   +1 more source

Multi‐Mineral Geochronology Across the Neoproterozoic Brasília Nappe Stack: Constraints on Thermal Resetting and Metamorphic Architecture

open access: yesTerra Nova, EarlyView.
ABSTRACT The Southern Brasília Orogen formed during Western Gondwana's final assembly and comprises nappe systems piled against the São Francisco Craton. We present new rutile U–Pb ages from the lowermost Canastra Group (> 2.2 Ga) and the uppermost Carrancas Group (~560 Ma), integrated with published zircon, monazite, garnet, and mica ages from the ...
Rodrigo Irineu Cerri   +7 more
wiley   +1 more source

Formation of monazite-(Ce, La) by fluid-apatite interaction: the Floresta Azul Alkaline Complex, Bahia, Brazil

open access: yes, 2018
: Monazite is a common accessory mineral in the Floresta Azul Alkaline Complex, occurring in three different rock types, which form this batholith: nepheline syenite, granite and fenite. Two compositional types of monazite can be found: monazite-(Ce) and
Maria de Lourdes da Silva Rosa (6136319)   +3 more
core   +1 more source

Sequence of REE-Th-U minerals in the Litsa uranium ore area (the Kola Region)

open access: yesVestnik MGTU, 2019
Mineralogical and petrographic study of REE-Th-U mineralization in rocks of the Litsa uranium ore area has been carried out to detail the sequence of formation of rare-earth, uranium and thorium minerals in rocks.
Kaulina T. V.   +2 more
doaj   +1 more source

Gadolinium as an Emerging Contaminant: Environmental Cycling, Human and Plant Interactions, and Mitigation Strategies

open access: yesRare Metals, Volume 45, Issue 11, November 2026.
ABSTRACT Gadolinium (Gd) is a rare earth element whose anthropogenic cycle has expanded rapidly, driven primarily by the widespread medical use of gadolinium‐based contrast agents (GBCAs) in magnetic resonance imaging, alongside its use in selected electronic and energy‐related technologies.
Nazenin Akin   +2 more
wiley   +1 more source

Experimental constraints on the relative stabilities of the two systems monazite-(Ce) – allanite-(Ce) – fluorapatite and xenotime-(Y) – (Y,HREE)-rich epidote – (Y,HREE)-rich fluorapatite, in high Ca and Na-Ca environments under P-T conditions of 200–1000 MPa and 450–750 °C [PDF]

open access: yes, 2016
The relative stabilities of phases within the two systems monazite-(Ce) - fluorapatite - allanite-(Ce) and xenotime-(Y) - (Y,HREE)-rich fluorapatite - (Y,HREE)-rich epidote have been tested experimentally as a function of pressure and temperature in ...
Budzyn, Bartosz   +11 more
core   +2 more sources

Geochemical Characteristics of Metasediment—Rich Lower Continental Crust: Insights From the Ivrea‐Verbano Zone (DIVE Drilling Project, ICDP Expedition 5071, Val d’Ossola, Italy)

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 11, November 2026.
Abstract Whole‐rock geochemical data from two drill cores obtained through the ICDP (International Continental Scientific Drilling Program) funded Drilling the Ivrea‐Verbano Zone (IVZ) (DIVE) project: 5071_1_B (Ornavasso) and 5071_1_A (Megolo), provide new insights into the composition of the lower continental crust (LCC) in the IVZ. Borehole 5071_1_B (
Alexia Secrétan   +9 more
wiley   +1 more source

Characterization of rare earths obtained from monazite concentrate processing and their application in esterification for biodiesel production

open access: yesEnergy Reports, 2022
Rare earths namely lanthanum (La), neodymium (Nd) and cerium (Ce) obtained from the monazite concentrate processing were comprehensively characterized using XRF, XRD, FTIR, N2adsorption–desorption, CO2/NH3-TPD and SEM to reveal their catalytic ...
Dussadee Rattanaphra   +3 more
doaj   +1 more source

FastNano Liquid: An Automated Platform for Small‐Angle X‐ray Scattering‐Based Materials Discovery

open access: yesAdvanced Engineering Materials, Volume 28, Issue 20, 21 October 2026.
We present FastNano Liquid, an automated small‐ and wide‐angle X‐ray scattering platform for the combined synthesis and characterization of (nano)materials. The platform is coupled to varied reactor workflows for both in situ studies of reaction kinetics and ex situ screening of synthesis conditions to support machine learning‐guided exploration ...
Pierre‐Baptiste Flandrin   +16 more
wiley   +1 more source

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