Abstract
The geological structure of the Stepninsky, Vandyshevsky, Biryukovsky, and Uisky massifs, which belong to the Stepninsky monzogabbro-granosyenite-granite complex, is described. It was concluded that the crystallization depth of granitoid massifs decreases successively in this series of rocks from hypabyssal to hypabyssal-subsurficial facies. It was shown that intrusions in the Stepninsky complex belong to intraplate formations. At the initial stage, mafic-intermediate rocks of the deep mantle origin considered as derivatives from a separate plume were formed; at the later stage, granites and leucogranites of the calc-alkaline series formed. In terms of geochemistry the later group of rocks is characterized by rare-metal specialization.
Sign-in/Register to access full text options 
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 callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
