Results 51 to 60 of about 1,919 (210)
Effect of Annealing on Structural and Thermodynamic Properties of ThSiO4-ErPO4 Xenotime Solid Solution [PDF]
International audienceThe effect of annealing on structural and thermochemical properties of a thorite-xenotime solid solution Th1–xErx(SiO4)1–x(PO4)x was assessed.
Dacheux, Nicolas +7 more
core +1 more source
SHRIMP Uranium-Lead Dating of Diagenetic Xenotime in Siliciclastic Sedimentary Rocks [PDF]
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 +2 more
core +1 more source
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
The Tribeč granitic core (Tatric Superunit, Western Carpathians, Slovakia) is formed by Devonian/Lower Carboniferous, calc-alkaline I- and S-type granitic rocks and their altered equivalents, which provide a rare opportunity to study the Variscan ...
Broska Igor, Petrík Igor
doaj +1 more source
Study of Natural Zircon-Xenotime Assemblages for Estimation of the Actinide Waste Forms Stability [PDF]
In order to estimate compositions and structural stability of YPO4-ZrSiO4-USiO4- ThSiO4 solid solution, natural specimens of (U,Th)-enriched zircon-xenotime assemblages were studied.
M. I. Lapina, S. V. Yudintsev
core +1 more source
GARNET AS A CARRIER OF THE RARE EARTH MINERALIZATION IN THE IRTYSH SHEAR ZONE, EAST KAZAKHSTAN [PDF]
REE mineralization (monazite and xenotime) in the plicated schist and granite gneisses of the Irtysh shear zone is established for the first time. The minerals occur as individual grains in rocks and microscopic inclusions in red and black garnets.
P.V. Ermolov +3 more
doaj
Abstract Most detrital zircon studies generate grayscale cathodoluminescence (CL) images, U/Pb dates, and variably extensive trace element concentration data. Yet the combined information contained in these data is rarely used for a higher‐level interpretation of zircon provenance, which still heavily relies on comparison of sample‐wide U/Pb age ...
Marco A. Acevedo Zamora +4 more
wiley +1 more source
SHRIMP U-Pb xenotime geochronology and its application to dating mineralisation, sediment deposition and metamorphism [PDF]
Diagenetic and hydrothermal xenotime typically occurs in rocks as tiny crystals (≤20 μm), either individually or as outgrowths on a zircon substrate.
Cross, Andrew Joseph
core +1 more source
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 +11 more
wiley +1 more source
Rare-Earth Orthophosphates From Atomistic Simulations
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 +16 more
doaj +1 more source

