Rare earth elements as tracers of sediment contamination by phosphogypsum in the Santos estuary, southern Brazil

2007 ◽  
Vol 22 (4) ◽  
pp. 837-850 ◽  
Author(s):  
Sonia Maria Barros de Oliveira ◽  
Paulo Sergio Cardoso da Silva ◽  
Barbara Paci Mazzilli ◽  
Deborah Ines Teixeira Favaro ◽  
Catia Heloisa Saueia
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Sediment Contamination ◽  
Southern Brazil

scholarly journals RARE EARTH ELEMENTS GEOCHEMISTRY OF FLUORITE FROM THE MATO PRETO CARBONATITE COMPLEX, SOUTHERN BRAZIL

1996 ◽  
Vol 26 (2) ◽  
pp. 81-86 ◽  
Author(s):  
ROBERTO VENTURA SANTOS ◽  
MARCEL AUGUSTS DARDENNE ◽  
CLAUDINEI GOUVEIA DE OLIVEIRA
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Southern Brazil ◽  
Carbonatite Complex

Flame spectra of the rare-earth elements*

1962 ◽  
Vol 18 (4) ◽  
pp. 1127-1153
Author(s):  
V FASSEL ◽  
R CURRY ◽  
R KNISELEY
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
The Rare Earth

ESTIMATION OF THE ABUNDANCE AND DISTRIBUTION OF RARE EARTH ELEMENTS IN SOIL AROUND KADUNA REFINING AND PETROCHEMICAL COMPANY USING NUCLEAR TECHNIQUE

2020 ◽  
Vol 4 (2) ◽  
pp. 599-604
Author(s):  
Michael A. Onoja ◽  
P. H. Bukar ◽  
C. U. Omeje ◽  
A. M. Adamu
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Nuclear Technique ◽  
Flood Plains ◽  
Economic Exploitation ◽  
Rare Elements ◽  
Petrochemical Company ◽  
The Moment ◽  
Abundance And Distribution ◽  
Natural Pattern

Instrumental neutron activation analysis (INAA) technique was used to investigate the abundance and distribution of rare earth elements (REE) in soil around Kaduna Refinery. The aim of the study is to assess the rare elements potential of Nigeria for economic exploitation. Five REEs (La, Dy, Eu, Yb, and Lu) were detected in varying concentrations ranging from a minimum of 0.6 µg/g (Lu) to a maximum of 249.0 µg/g (La). The elements existed with trends consistent with the natural pattern of REEs in soil, showing significant Eu and Dy anomalies which characterize upper plains and flood plains. The levels of REEs in soil in the study area were generally slightly above background levels, with minimal (La, Dy, and Eu), moderate (Yb), and significant (Lu) enrichments and trending: Lu ˃Yb ˃ Eu ˃ Dy ˃ La. The abundance of the REEs investigated cannot establish a potential of Nigeria for economic exploitation of the mineral, hence, rare earth project in the study area is not viable at the moment.

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