Age, Composition, and Geodynamic Environments for the Formation of Granites and Lithium-rich Rare-Element Pegmatite of Khusuingol Field (Sangilen Highlands)

Resumo

The composition, age, and genetic relationships of spodumene pegmatites of the Khusuingol field (South Sangilen pegmatite belt, SW Sayan), encompassing the large Tastyg lithium deposit, with granitoids of the neighboring polygenic Dzos-Khusuingol batholith have been studied. SHRIMP-II U–Pb zircon analyses yielded an Early Paleozoic age of the granites and pegmatites. The tectonic settings of the formation of these rocks are discussed.