Мінеральні ресурси України (Sep 2015)
Deеp factors of formation of major lithium industrial deposits in rare-metal pegmatites of Shpolyano-Tashlyksky ore district of the Ukrainian shield. Article 2
Abstract
The results of studies of new laws governing the distribution of endogenous industrial uranium deposits of Kirovogradsky uranium ore district and industrial Li and Та-Li deposits of Shpolyano-Tashlyksky ore district of the Ukrainian shield in close connection with the peculiarities of deep structure of lithosphere and its components are presented. Research was based on the idea of primary concentration of different ore components in asthenosphere. The study found that the most important factors in the formation of industrial uranium deposits in sodium carbonate metasomatites of the UkrSh were connected of the anomalous lithospheres’ segments with high degree of maturity. Vatutinskoye uranium ore field and Polohovskoye Li, Stankovatskoye Та-Li ore fields in west wing of the Korsun-Novomirgorodsky pluton and Novoukrainsky massive of Ingulsky megablock of the UkrSh are overlap. Research results allowed us to conclude that this pattern points to a certain similarity of petrological and geochemical conditions of the concentration of uranium and lithium and the community reaction ore components generation and migration routes asthenosphere, and after geochemical isolation of lithium and uranium in general asthenospheric trap under defined conditions of their antagonism primary concentration. This feature is due to a single asthenospheric trap with the formation of the local thermal irregularities within it. They created the conditions for primary large-scale separate concentrations of uranium and lithium. In result metallogenic specialization of Kirovograd ore region combines major industrial uranium deposits and major lithium deposits of Shpolyano-Tashlyksky ore district. Principally new deep factors of forming of major Li and Та-Li deposits within the Ukrainian shield are presented in the article.
