Double scavenging processes explain the vertical distribution of rare earth elements in the oceans: Importance of surface plankton as a primary scavenger and carbonate/oxide as a secondary scavenger

2019 ◽  
Vol 53 (2) ◽  
pp. 119-137
Author(s):  
Hirotaka Nishino ◽  
Tasuku Akagi
Keyword(s):  
Rare Earth ◽  
Vertical Distribution ◽  
Rare Earth Elements ◽  
The Vertical Distribution

Vertical distribution of rare earth elements in a wetland soil core from the Sanjiang Plain in China

2012 ◽  
Vol 30 (7) ◽  
pp. 731-738 ◽  
Author(s):  
Hongguang CHENG ◽  
Fanghua HAO ◽  
Wei OUYANG ◽  
Shaoqing LIU ◽  
LIN Chunye ◽  
...  
Keyword(s):  
Rare Earth ◽  
Vertical Distribution ◽  
Rare Earth Elements ◽  
Sanjiang Plain ◽  
Wetland Soil ◽  
Soil Core ◽  
The Sanjiang Plain

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.

Sc, Y, La-Lu Rare Earth Elements

1986 ◽  
Author(s):  
Ingeborg Hinz ◽  
Peter Kuhn ◽  
Ursula Vetter ◽  
Eberhard Warkentin
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements

Sc, Y, La-Lu, Rare Earth Elements

1989 ◽  
Author(s):  
Hiltrud Hein ◽  
Claus Koeppel ◽  
Ursula Vetter ◽  
Eberhard Warkentin
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements
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