Composition of Magmatic and Hydrothermal Zircon in the Elinovskii Massif, Gorny Altai

Resumo

The paper discusses new SHRIMP II data on the absolute age of riebeckite granite of the Elinovskii massif, Gorny Altai, and presents comparative characteristics of the morphology and chemical composition of magmatic and hydrothermal zircon obtained by LA-ICP-MS. It is shown that the revealed differences between the two types of zircon are related to the peculiarities of the fluid regime of granitoid melts. Both types of zircon manifest the tetrad effect of M-type REE fractionation.