Abstract
The article presents new data on the age, composition, and structure of granitoid massifs located in the eastern part of the Oloy zone, previously attributed to the Oloy and Yablon plutonic complexes of the Okhotsk-Chukotka volcano-plutonic belt. For a number of massifs, precision dating (U-Pb, SHRIMP-II) established age values in the range of 147-138 Myr, which corresponds to the final stage of the Alazeya-Oloy folded system development. The paper also discusses the results of geological-petrochemical and geochronometric studies of intrusive massifs, their position relative to the Late Jurassic - Early Cretaceous supra-subduction magmatic belts of the Oloy and Uda-Murgal arc systems.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
