Results 111 to 120 of about 32,006 (319)

Research of the thorium purification at monazite refinement processes [PDF]

open access: yes, 2016
This paper is aimed to the research of the thorium purification processes at monazite refinement processes. We have investigated different solution containing thorium with different mix of rare-earth elements.
Malin, A. V.   +3 more
core   +1 more source

Synthesis and Certification of Lanthanum Oxide Extracted from Monazite Sand

open access: yesIndonesian Journal of Chemistry, 2020
Synthesis and certification of lanthanum oxide extracted from monazite sand have been carried out. This research aimed to increase the added value of monazite sand and obtain the lanthanum oxide in-house certified reference material (CRM).
Samin Samin   +3 more
doaj   +1 more source

Electron Microprobe Chemical Dating of Uraninite as a Reconnaissance Tool for Leucogranite Geochronology [PDF]

open access: yes, 2007
We suggest that electron microprobe techniques may be employed to date Tertiary samples of uraninite (UO~2~), which can contain very high concentrations of radiogenic Pb after only a few million of years of U and Th decay. Although uraninite is regarded
Jahandar Ramezani   +4 more
core   +1 more source

High-Pressure Elastic, Vibrational and Structural Study of Monazite-Type GdPO4 from Ab Initio Simulations

open access: yesCrystals, 2018
The GdPO4 monazite-type has been studied under high pressure by first principles calculations in the framework of density functional theory. This study focuses on the structural, dynamical, and elastic properties of this material.
Alfonso Muñoz   +1 more
doaj   +1 more source

Occurrence of Detrital Monazite within the Esva Watershed (NW Spain): EPMA Dating and REE Geochemistry [PDF]

open access: bronze, 2020
Santiago González-Nistal   +3 more
openalex   +1 more source

Inferences on the Mesozoic evolution of the North Aegean from the isotopic record of the Chalkidiki block [PDF]

open access: yes, 2016
International audienceThe Chalkidiki block is a major domain in the North Aegean that, contrary to other domains in the region, largely escaped thermal perturbations during Tertiary extension.
Brun, Jean-Pierre   +4 more
core   +2 more sources

Plasma dissociation of monazite

open access: yesIOP Conference Series: Materials Science and Engineering, 2019
Abstract Monazite is a phosphate mineral which contains a significant amount of rare earth elements (REE) with thorium (Th) and a low concentration of uranium (U). The radioactive components of monazite, Th and U, make it an unattractive source of REE due to the added cost associated with radioactive waste handling.
H Bissett   +3 more
openaire   +1 more source

Sulfur-bearing monazite-(Ce) from the Eureka carbonatite, Namibia: oxidation state, substitution mechanism, and formation conditions

open access: yesMineralogical magazine, 2019
Sulfur-bearing monazite-(Ce) occurs in silicified carbonatite at Eureka, Namibia, forming rims up to ~0.5 mm thick on earlier-formed monazite-(Ce) megacrysts.
S. Broom-Fendley   +8 more
semanticscholar   +1 more source

The top-to-the-southeast Sarzeau shear zone and its place in the late-orogenic extensional tectonics of southern Armorica [PDF]

open access: yes, 2009
International audienceThis study presents new structural and monazite chemical U-Th/Pb geochronological constraints for the magmatic rocks of the Golfe du Morbihan area, in southern Brittany, south of the South Armorican shear zone (SASZ).
Augier, Romain   +2 more
core   +3 more sources

U-Pb monazite ages from the Pakistan Himalaya record pre-Himalayan Ordovician orogeny and Permian continental breakup

open access: yesGSA Bulletin, 2018
The Greater Himalayan Sequence in India and Nepal records crustal thickening processes that took place during and following the onset of India-Asia collision (ca. 54–50 Ma).
R. Palin   +5 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy