Mineralogy and lithochemistry ore metasandstones overlying Man-Hambo granite massif (Northern Urals)
Автор: Udoratina O.V., Nikulova N.Y., Varlamov D.A.
Журнал: Вестник геонаук @vestnik-geo
Рубрика: Научные статьи
Статья в выпуске: 4 (232), 2014 года.
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The study data of the mineral composition and lithochemical study of enclosing rare-earth uranium-thorium-rare metal mineralization of clastic strata contacted with granitoids from the Man-Hambo massif are presented. Metasandstones increase conglomerates and gravelites in the base of the section containing plenty of debris of local origin and proximate ablation of Prepaleozoic granitoids. The chemical composition of the rocks reflects the changing composition of the supply sources and the degree of terrigenous material sorting. The terrigenous strata are a classic transgressive section, and by the complex of lithological and geochemical characteristics they are attributed to the Telposskaya Formation. We determined a wide range of accessory minerals, including larger variety of species of zircons in sandstones than grits, this indicates a slight change (increase or shift of) supply.
Granitoids, manhambo, accessory minerals, chemical composition, metasandstones
Короткий адрес: https://sciup.org/149128621
IDR: 149128621