Results 11 to 20 of about 2,650 (213)

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   +2 more sources

Microorganisms Accelerate REE Mineralization in Supergene Environments

open access: yesApplied and Environmental Microbiology, 2022
Understanding the role of microorganisms in the formation of regolith-hosted rare earth element (REE) deposits is beneficial for improving the metallogenic theory and deposit exploitation, given that such deposits absolutely exist in subtropical regions with strong microbial activities.
Xurui Li   +9 more
openaire   +2 more sources

Rare Earth Elements in Dinosaur Bones Across the Embryo-Adult Spectrum

open access: yesFrontiers in Earth Science, 2020
There is broad consensus that many bones of extinct vertebrates contain Rare Earth Elements (REE) and other trace minerals that have been incorporated and enriched into the fossil during diagenesis.
Shuanglong Wang   +11 more
doaj   +1 more source

Rare Earth Element Deposits of Alkaline Igneous Rocks

open access: yesResources, 2017
Alkaline igneous complexes host deposits of rare earth elements (REE), which represent one of the most economically important resources of heavy REE and Yttrium (Y).
Jaroslav Dostal
doaj   +1 more source

Thermodynamic Constraints on REE Mineral Paragenesis in the Bayan Obo REE-Nb-Fe Deposit, China [PDF]

open access: yesMinerals, 2020
Hydrothermal processes have played a significant role in rare earth element (REE) precipitation in the Bayan Obo REE-Nb-Fe deposit. The poor preservation of primary fluid inclusions and superposition or modification by multiphase hydrothermal activities have made identification of physico-chemical conditions of ore-forming fluids extremely difficult ...
Liu, Shang, Ding, Lin, Fan, Hong-Rui
openaire   +1 more source

The unique Abramovka REE-rich mineralization is a potential source of REE for the Pavlovsk coals deposit (Primorsky Krai, Russia) [PDF]

open access: yesE3S Web of Conferences, 2019
The unique REE mineralization of the Abramovka ore occurrence, associated near-surface waters, and REE-rich coals of the Pavlovka basin were studied. The authors, on the base of new isotope-geochemical data and K-Ar dating, suggest that the Abramovka REE
Chekryzhov Igor   +3 more
doaj   +1 more source

Bioleaching of Phosphate Minerals Using Aspergillus niger: Recovery of Copper and Rare Earth Elements

open access: yesMetals, 2020
Rare earth elements (REE) are essential in high-technology and environmental applications, where their importance and demand have grown enormously over the past decades. Many lanthanide and actinide minerals in nature are phosphates.
Laura Castro   +3 more
doaj   +1 more source

Mapping of potential rare earth deposits in the Schiel alkaline complex using sentinel-2B multispectral sensor

open access: yesEgyptian Journal of Remote Sensing and Space Sciences, 2021
In this study, the images of Sentinel-2B multispectral sensor are used to map minerals associated with rare earth elements (REE) in an attempt to discover new potential targets for REE deposits in the Schiel Alkaline Complex of South Africa.
Nndanduleni Muavhi   +2 more
doaj   +1 more source

Mineralogy and Mineral-chemistry of REE Minerals Occurring at Mountain Eorae, Chungju [PDF]

open access: yesEconomic and Environmental Geology, 2012
The Chungju Fe-REE deposit is located in the Kyemyeongsan Formation of the Ogcheon Group. The Kyemyeongsan Formation includes meta-volcanic rocks and pegmatite hosted REE deposit which show different kind of REE-containing minerals. The meta-volcanic rocks hosted REE deposits` main REE minerals are allanite, zircon, apatite, and sphene, whereas the ...
Byoung-Woon You   +2 more
openaire   +1 more source

Genesis of silica-rich carbonatite in the Miaoya complex, Hubei Province and its implications for REE mineralization

open access: yes地质科技通报, 2023
The Miaoya complex in Hubei Province hosts one of the most important REE deposit in China. This complex is composed of syenite, carbonatite (SiO2 < 10%), and a suite of silica-rich carbonatite (SiO2>30%).
Yinqiu Hu, Bin Wu, Qian Ren
doaj   +1 more source

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