Specifics of geological composition, geochemistry and geochronology of rocks from the Kresty alkaline-ultrabasic massif (Maimecha-Kotui province, Polar Siberia)

9th All Russian petrographic conference with international participation: Petrology of magmatic and metamorphic complexes

Sazonov, A.M.^1,2 ; Zvyagina, E.A.^1 ; Gertner, I.F.^2 ; Krasnova, T.S.^2 ; Lipenkov, G.P.^3

Siberian Federal University, Krasnoyarsk, Russia^1

Tomsk State University, Tomsk, Russia^2

All-Russian Geological Institute, Saint-Petersburg, Russia^3

关键词: Continental crusts;    Geochemical data;    Geological composition;    SIBERIA;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/110/1/012006/pdf
DOI  :  10.1088/1755-1315/110/1/012006

来源: IOP

【 摘 要 】

In this work, we demonstrate new data that allows us to accurate geochronological ranges of formation of the Kresty alkaline-ultrabasic massif, which is considered to be a satellite of the Gulinian giant pluton. We also interpreted geological, geochemical and isotope-geochemical data obtained earlier for major varieties of this volcanic-plutonic association taking into account new geochronological results, as well as considered new aspects/information on matter source of alkaline-ultrabasic massifs from this province. One of the main aspects is interaction of Siberian super plume matter with hosting substrate of Siberian craton continental crust.