Scientific journal
Scientific Review. Geographical Sciences

Personal portfolio

THE EVOLUTION OF HYDROTHERMAL-METASOMATIC URANIUM PROCESSES IN THE HISTORY OF GEOLOGICAL DEVELOPMENT OF THE CHARSKY AREA

Grebenkin N.А
We studied uraniferous hydrothermal-metasomatic rocks that were forming the long geological history of the Charsky area. Uranium-bearing silica alkaline metasomatites with uraninite, monazite and xenotime were formed in the early Proterozoic. Processes of diaphthoresis (R1-2) and metasomatosis of acid type (R2-3) existed in the Riphean era. These processes were accompanied with uranium-phosphoric and uranium-sulfide mineralization. Mesozoic time was characterized by formation of pyrite-carbonate-feldspar hydrothermal gold-contained alterations of the rocks and pyrite-carbonate-koffinit vein (J2). Fenites, vein-type and breccias with thorium and uranium mineralization were formed later than pyrite-carbonate-feldspar hydrothermal rock alterations (J3-K1). It is shown that the main perspectives identify industrial uranium deposits in the Charsky area are associated with Late Riphean activation. This period is characterized by uraniferous metasomatic rocks of acid type.

Библиографическая ссылка

Гребенкин Н.А ЭВОЛЮЦИЯ ГИДРОТЕРМАЛЬНО-МЕТАСОМАТИЧЕСКИХ УРАНОНОСНЫХ ПРОЦЕССОВ В ИСТОРИИ ГЕОЛОГИЧЕСКОГО РАЗВИТИЯ ЧАРСКОГО РАЙОНА // Научное обозрение. Науки о Земле. 2020. № 1. ;
URL: https://science-geography.ru/en/article/view?id=102 (дата обращения: 26.06.2026).