Granitoid magmatism in the Arminskii block of Central Sikhote Alin (Primorye, Far Eastern Russia): U-Pb geochronology, He-3/He-4 isotopy, petrochemistry, and ore mineralization

摘要

This work presents the first isotope-geochronological data obtained for granitoid series of the Arminskii block of Central Sikhote Alin: Tatibi gabbromonzodiorite and Olgino leucocratic granite. Every series is characterized by a certain structural position and timing of the formation of ore mineralization. The Tatibi series is characterized by the presence of gold-ore occurrences including the potential Glukhoe goldore occurrence. Granitoids of the Olgino series comprise known tin-sulfide ore occurrences. The conditions for the generation of each series of rocks were revealed on the basis of geochronological-isotope data.