Typomorphic features of minerals and the material composition of the titanium ores of the yastrebow deposits of the southeast of Voronezh anteclise

Abstract

The formations of the yastrebov time in the southeast of the Voronezh anteclise are represented by delta, lagoon, coastal-marine, shallow-water, volcanogenic-sedimentary and volcanogenic formations. Prospective areas for titanium ores are confined to tuffs, tuffites and tuffstone. The content of ilmenite in ores reaches 200–400 kg/m3. Ilmenite has a specific chemical composition, characterized by a high content of MgO and TiO2. Chrome-spinellids are a characteristic mineral with a low content of Al2O3 and high TiO2 and MgO. In addition to their own components for the analyzed ilmenite grains characterized by the presence of magnesium species – geikielite, and manganese – pyrophanite. As inclusions in the studied ilmenites observed monazite, Apatite, and talc. In addition to ilmenite chromespinelides are studied, which are also characteristic of mineral with a low content of Al2O3 and high TiO2 and MgO. There is an inverse correlation between Cr2O3 and FeO.