Results 21 to 30 of about 7,496 (223)

Timing of diagenesis and very low-grade metamorphism in the eastern sector of the Sierra de Cameros (Iberian Range, Spain): a U–Pb SHRIMP study on monazite [PDF]

open access: yes, 2009
The Sierra de Cameros is an intracontinental orogen and represents the north-western part of the Iberian Range in Northern Spain. It comprises a thick sequence of syn-rift continental sediments (mainly sandstones and carbonates) deposited during ...
Aleinikoff   +42 more
core   +2 more sources

Automatic element and mineral detection in thin sections using hyperspectral transmittance imaging microscopy (HyperTIM) [PDF]

open access: yesEuropean Journal of Mineralogy, 2022
In this study we present a novel method for the automatic detection of minerals and elements using hyperspectral transmittance imaging microscopy measurements of complete thin sections (HyperTIM).
H. L. C. Daempfling   +11 more
doaj   +1 more source

A Raman spectroscopic study on the structural disorder of monazite–(Ce)

open access: yesMineralogy and Petrology, 2012
This study addresses whether Raman spectra can be used to estimate the degree of accumulated radiation damage in monazite-(Ce) samples whose chemical composition was previously determined. Our results indicate that the degree of disorder in monazite-(Ce), as observed from increasing Raman band broadening, generally depends on both the structural state (
Ruschel, Katja   +7 more
openaire   +3 more sources

Micro-crystalline inclusions analysis by PIXE and RBS [PDF]

open access: yes, 2008
A characteristic feature of the nuclear microprobe using a 3 MeV proton beam is the long range of particles (around 70 \mu m in light matrices). The PIXE method, with EDS analysis and using the multilayer approach for treating the X-ray spectrum allows ...
Bruhn   +20 more
core   +5 more sources

Geochemistry of Monazite within Carbonatite Related REE Deposits

open access: yesResources, 2017
Approximately >50% of global rare earth element (REE) resources are hosted by carbonatite related deposits, of which monazite is one of the most important REE minerals. Monazite dominates more than 30 carbonatite-related REE deposits around the world,
Wei Chen   +3 more
doaj   +1 more source

REE-Nb MINERALIZATION IN TRACHYTES AND RHYOLITES OF THE KHULAM VOLCANO-PLUTONIC COMPLEX, NORTH CAUCASUS [PDF]

open access: yesМинералогия, 2021
The paper presents the first data on the composition of REE and Nb mineralization in the Middle Jurassic moderately alkaline felsic and moderately acid rocks of the Khulam volcano-plutonic complex at the territory of Kabardino-Balkaria, central part of ...
E.N. Kaigorodova   +3 more
doaj   +1 more source

Occurrence and behavior of monazite-(Ce) and xenotime-(Y) in detrital and saprolitic environments related to the Serra Dourada granite, Goiás/Tocantins State, Brazil: Potential for REE deposits [PDF]

open access: yes, 2015
This is the author's post-print and is released with a Creative Commons Attribution Non-Commercial No Derivatives License.The definitive published version is available from Elsevier via http://dx.doi.org/10.1016/j.gexplo.2015.03.007 © 2015 Elsevier B.V.
Botelho, NF, Santana, IV, Wall, F
core   +1 more source

Zircon to monazite phase transition in CeVO4 [PDF]

open access: yes, 2011
X-ray diffraction and Raman-scattering measurements on cerium vanadate have been performed up to 12 and 16 GPa, respectively. Experiments reveal that at 5.3 GPa the onset of a pressure-induced irreversible phase transition from the zircon to the monazite
A. K. Tyagi   +13 more
core   +2 more sources

Cenozoic deformation in the Tauern Window (Eastern Alps) constrained by in situ Th-Pb dating of fissure monazite [PDF]

open access: yesSolid Earth, 2020
Thorium–lead (Th-Pb) crystallization ages of hydrothermal monazites from the western, central and eastern Tauern Window provide new insights into Cenozoic tectonic evolution of the Tauern metamorphic dome. Growth domain crystallization ages range from 21.
E. Ricchi   +7 more
doaj   +1 more source

Internal framework and geochemistry of the Carboniferous Huaco granite pluton, Sierra de Velasco, NW Argentina [PDF]

open access: yes, 2018
The A-type Huaco granite pluton of the Velasco range (Sierras Pampeanas of northwest Argentina) is formed by three coeval granitic facies and contains subordinate coeval-to-late facies, as well as enclaves, dikes and stocks that show different temporal ...
Grosse, Pablo   +3 more
core   +2 more sources

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