Rare-earth element distribution in Archaean gneisses and anorthosites, Godthåb area, West Greenland

1974 ◽  
Vol 22 (4) ◽  
pp. 328-338 ◽  
Author(s):  
R.K. O'Nions ◽  
R.J. Pankhurst
Keyword(s):  
Rare Earth ◽  
Rare Earth Element ◽  
Earth Element ◽  
Element Distribution ◽  
West Greenland ◽  
Rare Earth Element Distribution

Rare earth element distribution in a metasomatic zoned ultramafic pod from Fiskenaesset, West Greenland

1983 ◽  
Vol 47 (345) ◽  
pp. 547-553
Author(s):  
M. B. Fowler ◽  
C. T. Williams ◽  
P. Henderson
Keyword(s):  
Crystal Structure ◽  
Rare Earth ◽  
Rare Earth Element ◽  
Earth Element ◽  
Element Distribution ◽  
West Greenland ◽  
Diffusion Controlled ◽  
Rare Earth Element Distribution ◽  
Mineral Assemblages ◽  
Marginal Zones

AbstractThe distribution of REE in a zoned ultramafic pod formed by incomplete re-equilibration of ultrabasic and quartzofeldspathic reactant compositions has been studied. Transport of the heavy REE (HREE) as well as the light REE (LREE) over several metres has occurred during the diffusion-controlled metasomatism of the protolith mineral assemblages. The largest resultant concentration range (Eu) exceeds two orders of magnitude. In general, REE abundances increase towards the marginal zones, and differences between the behaviour of LREE, middle REE (MREE) and HREE subgroups are observed. LREE are least mobile in the aqueous transporting medium. Complexing by carbonate ligands is probably not an important factor in this system, and the final REE distribution is thought to be governed largely by the crystal structure of the major zonal minerals.

scholarly journals Lunar rare earth element distribution and ramifications for FeO and TiO2: Lunar Prospector neutron spectrometer observations

2000 ◽  
Vol 105 (E8) ◽  
pp. 20333-20345 ◽  
Author(s):  
R. C. Elphic ◽  
D. J. Lawrence ◽  
W. C. Feldman ◽  
B. L. Barraclough ◽  
S. Maurice ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Element ◽  
Earth Element ◽  
Element Distribution ◽  
Neutron Spectrometer ◽  
Lunar Prospector ◽  
Rare Earth Element Distribution
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