Results 111 to 120 of about 7,317 (263)

Interactions of rare earth elements with living organisms and emerging biotechnical applications

open access: yesPLANTS, PEOPLE, PLANET, Volume 7, Issue 5, Page 1251-1274, September 2025.
Rare earth elements (REEs) are critical resources required to achieve net‐zero carbon emission targets and energy security. However, rising demand for REEs coupled with significant extraction and processing challenges and geopolitical risks restricts access to REE resources.
Samantha A. McGaughey   +6 more
wiley   +1 more source

An in-situ electron microscopy study of dual ion-beam irradiated xenotime-type ErPO4

open access: yes, 2020
Rare-earth phosphates adopting the xenotime (REPO 4 ; RE = Tb − Lu & Y, Sc) structure are proposed as a potential matrix for the confinement of minor actinides.
M. R. Rafiuddin   +6 more
semanticscholar   +1 more source

REE MINERALS OF PHYLLITES OF THE MAIN CENTRAL THRUST OF THE TAMOR WINDOW AREA, EASTERN NEPAL [PDF]

open access: yesМинералогия, 2018
A sample of chlorite-muscovite fillite metamorphosed under greenschist facies of metamorphism below biotite isograde of the Lower Himalayan Sequence from the Main Central Thrust zone of the Tamor tectonic window area (Eastern Nepal) are studied.
E.V. Belogub   +2 more
doaj  

Evidence for dissolution-reprecipitation of apatite and preferential LREE mobility in carbonatite-derived late-stage hydrothermal processes [PDF]

open access: yes, 2016
The Tundulu and Kangankunde carbonatite complexes in the Chilwa Alkaline Province, Malawi, contain late-stage, apatite-rich lithologies termed quartz-apatite rocks.
Appleton, J. Don   +4 more
core   +1 more source

REE-bearing minerals in the Rapakavi Grante, Southern Finland

open access: yesOpen Geosciences, 2015
The studied rock samples belong to the classic1615–1645 Ma Wiborg Rapakivi granite terrane of southeasternFinland. Geochemical studies show that the rapakivigranites and associated rocks form metaluminousto peraluminous A-type granites and plot in the ...
Al-Ani Thair
doaj   +1 more source

Geochemical characterization of bauxite deposits from the Abruzzi Mining district (Italy) [PDF]

open access: yes, 2018
The Abruzzi bauxite district includes the deposits located on the Campo Felice plateau and those of the Monti d'Ocre, which had been mined in the first part of the 20th century.
Balassone, Giuseppina   +5 more
core   +1 more source

Indentation recovery in GdPO4 and observation of deformation twinning

open access: yesAIP Advances, 2016
A series of nanoindentation tests on both single and polycrystalline specimens of a monazite rare-earth orthophosphate, GdPO4, revealed frequent observation of anomalous unloading behavior with a large degree of recovery, where previously this behavior ...
Taylor M. Wilkinson   +4 more
doaj   +1 more source

Distinguishing xenotime and zircon in ores and estimating the xenotime content for on-site analysis

open access: yesSpectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
Estimation of the content of the major minerals containing rare earth element (REE) (e.g., xenotime, monazite, and bastnäsite) to extract metal REEs is a critical task for efficient exploration of mines with REE reserves. X-ray-excited optical luminescence (XEOL) imaging is a promising method for estimating the REE-bearing mineral content on-site ...
openaire   +2 more sources

The Murchison Greenstone Belt, South Africa: Accreted slivers with contrasting metamorphic conditions [PDF]

open access: yes, 2013
International audienceThis paper presents new petrological and geochronological data for the ∼3.09-2.92 Ga Murchison Greenstone Belt (MGB), located in South Africa's Kaapvaal Craton, and discusses their geotectonic implications.
Block, Sylvain   +5 more
core   +3 more sources

Xenotime-type high entropy (Dy 1/7Ho 1/7Er 1/7Tm 1/7Yb 1/7Lu 1/7Y 1/7)PO 4: A promising thermal/environmental barrier coating material for SiC f/SiC ceramic matrix composites

open access: yesJournal of Advanced Ceramics, 2023
Peixiong Zhang   +7 more
semanticscholar   +1 more source

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