Results 1 to 10 of about 2,650 (213)

REE AND Th MINERALS IN THE METASANDSTONES OF THE UDOKAN BASIN (RUSSIA) [PDF]

open access: yesМинералогия, 2022
Based on ICP-MS, optical and electron microscopy, and electron back-scatter diffraction data, the paper considers the distribution and the mode of occurrence of REEs and Th in metasandstones of the Lower Proterozoic Sakukan Formation, which host ...
E.V. Belogub   +4 more
doaj   +2 more sources

Mineralogy and Mineral Chemistry of the REE-Rich Black Sands in Beaches of the Kavala District, Northern Greece

open access: yesGeosciences, 2022
The coastal area of the Kavala district, Northern Greece, is characterized by minerals enriched in rare earth elements (REE). The present study focuses on the mineralogy of the black sands from six different locations and the comprehensive mineral ...
Panagiotis Voudouris   +2 more
exaly   +3 more sources

Microbial bioleaching of rare earth elements from phosphate minerals: a biotechnology-driven systematic review of mechanisms, bioprocess determinants, and opportunities for sustainable recovery [PDF]

open access: yesBMC Biotechnology
Background Rising demand for rare earth elements (REEs) and the severe environmental impact of conventional extraction from phosphate minerals (monazite, apatite) have intensified the search for green alternatives.
Sonali Prabodha Vijayarathna   +2 more
doaj   +2 more sources

Elemental Mapping for Characterizing of Thorium and Rare Earth Elements (REE) Bearing Minerals Using µXRF

open access: yesAtom Indonesia, 2022
Thorium (Th) anomaly was found in Adang Volcanic Complexes, Mamuju Area, West Sulawesi. This element is associated with high-value elements, the rare earth elements (REE). The minerals containing Th and REE were found in veins mineralization with various
I. G. Sukadana   +5 more
doaj   +1 more source

Recovery of Rare Earth Elements Minerals from Iron-Oxide-Silicate-Rich Tailings: Research Review

open access: yesEng, 2022
The rapid depletion of high-grade rare earth elements (REE) resources implies that future supplies may be augmented with low-grade ores, tailings, and other unconventional resources to meet cut-off grades and, subsequently, supply demands.
George Blankson Abaka-Wood   +3 more
doaj   +1 more source

Anatomy of intergrowth OF florencite and xenotime crystals with oscillatory zoning from veins of the svodovy au-ree occurrence, subpolar u [PDF]

open access: yesМинералогия, 2020
The morphology and anatomy of a paragenetic intergrowth of REE minerals (xenotime and florencite) from veins of Svodovy Au-REE occurrence (Subpolar Urals) are described.
S.A. Repina, V.A. Muftakhov
doaj   +1 more source

The Enrichment Mechanism of REE at Sulfate and Methane Transition Zone (SMTZ) of the Northern Part of the South China Sea

open access: yesGeofluids, 2022
Rare earth elements (REE) are important raw materials for electronic products and green-energy technology and deep-sea sediment as an important potential source of REE mineral.
Xie Rui   +7 more
doaj   +1 more source

Occurrence of niobium in biotite-type Fe-REE-Nb ore in the Bayan Obo deposit

open access: yesSolid Earth Sciences, 2023
The Bayan Obo REE-Nb-Fe deposit, which reserves the current largest REE resources globally, also hosts 63.4% of China's Nb resources. Previous studies mainly focus on the isotopes and petrographic mineralogy of carbonatite dyke, ore-host dolomite and ...
Yisu Ren, Xiaoyong Yang, Xiaoxia Wang
doaj   +1 more source

Coefficients of distribution of REE+Y between minerals and cooling rich sulfate fluid (thermodynamic modeling)

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2018
The relevance of the work is caused by the fact that the study of the coefficients of REE+Y distribution between the minerals-concentrators of these elements and between minerals and sulfate fluids in various alkaline and weakly acidic systems makes it ...
Galina Petrovna Shironosova   +1 more
doaj   +1 more source

Application of the Automated Mineral Identification and Characterization System (AMICS) in the Identification of Rare Earth and Rare Minerals

open access: yesYankuang ceshi, 2018
The Yinachang Fe-Cu-REE deposit is one of the representative Proterozoic Fe-Cu-REE deposits in central Yunnan, at the southwestern margin of the Yangtze Block, China. Beside Fe and Cu, there are REEs, Nb, Mo, Co, Au, U and other elements in the ores. The
WEN Li-gang   +6 more
doaj   +1 more source

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