Khaldzan-Buregtey

Alkalic igneous rare earth element deposit in , Mongolia

Geographic location

CountryMongolia
Geographic location:91.966667, 48.416667
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Location references

  • Estimate

Geologic characteristics

Deposit typeAlkalic igneous
Age of depositDevonian-- 380-390 Ma
REE mineralsfergusonite
allanite
bastnäsite
synchysite
britholite
monazite
chevkinite
Ore mineralselpidite
gittinsite
zircon
pyrochlore
polylithionite
tantalum
hafnium
thorium
fluorite
Gangue mineralsmicrocline
quartz
albite
arfvedsonite
aegirine
Host rock typesperalkaline granite
gabbro
basalt
pantellerite dikes
syenite

Nearby scientific information

Geologic map unit91.966666666667, 48.416666666667
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Economic information

StatusOccurrence
Resource estimates>1.2 Mt REE @ 0.3% REE, >0.4 Mt Nb @ 0.1% Nb, >8 Mt Zr @ 2.0% Zr

Comments

In western Mongolia. Discovered in 1984. Host rocks have been metasomatized.

Bibliographic references