Rare Earth Element Mineralization
The Application of Geophysical Inversion Techniques to the Nechalacho Rare Earth Element Deposit, NT
... Comparing these results with the current geological model, the depths and approximate structure of the anomaly coincide reasonably well with the basal zone top and bottom layers (Figure 2.15). The approximate depths to ...
231
Remarkably Consistent Rare Earth Element Grades at Round Top Yttrofluorite Deposit
... heavy rare earth elements (YHREEs), as well as Li, Be, U, Th, Sn, F, Rb, Cs, Nb, and ...of mineralization grade, an important consideration in mine planning and preliminary economic ...
14
Microprobe Mapping of Rare Earth Element Distribution in Round Top Yttrofluorite Deposit
... particular element is present chiefly in an inso- luble mineral, one would realize that it cannot be effectively recovered by the acid ...the mineralization process, which would help in exploration for ...
17
Rare Earth Elements And Rare Elementsconcentration In Two Pegmatite Fields Within North-Central Nigerian Precambrian Basement Complex: Implication For Mineralization
... of mineralization of the pegmatites using the Be vs K/Nb ...of mineralization. Chondrite normalized plot of the rare earth element (REE) of the study area shows negative Ce ...
10
Rare earth element fluorocarbonate minerals from the Olympic Dam Cu U Au Ag Deposit, South Australia
... of rare earth elements (REE) which occur as the REE minerals bastnäsite, synchysite, florencite, monazite, and ...sulfide mineralization styles (chalcopyrite-bornite and bornite-chalcocite) and ...
24
Rare Earth Element Phases in Bauxite Residue
... from bauxite residue, REEs have been indicated to occur in calcium titanate phases that were created 171.. in the Bayer process.[r] ...
31
Multiferroic properties of rare earth manganites
... applied along the c-axis would cause the spins to rotate about c, i.e. in the a-b plane (illustrated in Figure 4.28). Again referring to Equation 1.6, the result of this magnetic reorientation would be a change in the ...
212
Electronic Properties of Rare Earth Monopnictides
... (12) Where D, S, Y, D*and S* are the constants, which depend upon the crystal structure of compounds. The numerical values of these constants for these materials are 0.0308, 0.089, 0.094, 0.894 and 19934.75 ...
8
The PedS2/PedR2 Two-Component System Is Crucial for the Rare Earth Element Switch in Pseudomonas putida KT2440
... IMPORTANCE The function of lanthanides for methanotrophic and methylotrophic bacteria is gaining increasing attention, while knowledge about the role of rare earth elements (REEs) in nonmethylotrophic ...
12
Bed and suspended sediment-associated rare earth element concentrations and fluxes in a polluted Brazilian river system
... light rare earth elements (LREEs) and this natural 62 abundance is likely to have consequences for the geochemical characteristics of both suspended and bed 63 sediments and especially in a multi-metal ...
20
Rare Earth Element Determination in Olivine by Laser Ablation Quadrupole ICP MS: An Analytical Strategy and Applications
... The untypically long dwell times used here, up to 2.5 s for MREE, resulted in a long sweep time of ~ 8 s, with the high shot count (4200) allowing for twenty sweeps per analyte. Most analyses were performed with the ‘set ...
16
Preparation of rare earth metals
... The same experiments using a tantalum or molybdenum vessel showed no detectable contamination of the rare earth metal& Work conducted by Daane 11 at the Ames Laboratory, on methods of we[r] ...
31
Electropolishing the rare earth metals
... Chemical oxidation is the principle method of etching a metal surface for microscopic examination and the rare earths were etched in this manner... At room temperature, the nitric acid-a[r] ...
18
Rare earth doping of silicon
... The ground state configuration for the erbium atom is [Xe)4fi^5s^5p^6s^5d^. W hen it becomes ionised, the final four shells become 4 fi^5 s^5 p ^, the 5 d and 6s shells being empty. The first two terms in Eq.(2.1.1) ...
165
Rare earth elements in Australian sediments
... the rare earth pattern of KH21? The close spatial relationships as well as compositional similarities indicates that the felsic volcanics were major source rocks for the clastic sediments in the Kalgoorlie ...
149
Production method for making rare earth compounds
... a rare earth compound, such as a earth-transition metal permanent magnet compound, without the need for producing rare earth metal as a process step, comprises carbothermically reacting ...
5
Electrical Transport Studies Of Rare- Earth Titanates
... nature and the number of charge carriers. Thus study of both electrical conductivity and seeback coefficient yield some important information about conduction process in any solid. Using this mythology we have ...
8
Magnetic Behavior Of Light Rare – Earth Titanates
... attention due to surprising variety of physical properties exhibited within an isostructural and chemically similar series of compound [1]. Low temperature magnetic susceptibility studies of these compounds have been ...
10
Dielectric Properties Of Light Rare-Earth Titanates
... is no chance for the existence of thermally generated charge carriers at lower side of temperature (T < 800K). The lower value of K' below 600K indicates that free charge carriers generated from impurities is also ...
12
Rare earth elements in olivine:determination, occurrence and behaviour
... contained in rare earth element (REE) concentrations, which are well studied in other minerals. However, REE data for olivine are scarse, reflecting the difficulty associated with analysing ...
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