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A Preliminary Geochemical Study on the Khaldzan-Buregtei Pegmatite, Western Mongolia  

Pak, Sang-Joon (Mineral Resources Group, Geology & Geoinformation Division, Korea Institute of Geoscience and Mineral Resources)
Heo, Chul-Ho (Mineral Resources Group, Geology & Geoinformation Division, Korea Institute of Geoscience and Mineral Resources)
Kim, You-Dong (Mineral Resources Group, Geology & Geoinformation Division, Korea Institute of Geoscience and Mineral Resources)
Publication Information
Journal of the Mineralogical Society of Korea / v.21, no.3, 2008 , pp. 261-269 More about this Journal
Abstract
A NYF-type (Nb-Y-Zr-F) Khaldzan-Buregtei pegmatite containing rare-earth metals occurs within alkali granitoid complex of the western Mongolia. The pegmatites are considered as differentiates of syenites and alkali feldpar granitic rocks, showing that their rare-earth element concentrations are enriched tens times higher than those from the adjacent alkali granitic rocks. It is suggested that econemic aspects of the pegmatites can be controlled by the magnitude of lateral and vertical extensions and local grade variation of REE-bearing pegmatites.
Keywords
Mongolia; Khaldzan-Buregtei; rare-earth metals; pegmatite;
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