oa The use of data on the material composition of sediments during forecasting works of titanium root and placer deposits

This work is devoted to using the coefficients of granulometric and material composition of sediments that contain productive bodies from 16 placer and promising areas of the Irshansky placer field the Ukrainian sub-province of titanium and titanium-zirconium placer deposits (USTTCPD). There are show the efficiency of using these methods to solve various problems that arise during forecasting and exploration of titanium deposits of the Irshansky placer field on 3 tables. These are: stratigraphical (age) correlations (regional, local); genetic diagnosis of continental and marine sediments; reconstruction of facial conditions and paleogeographic elements; assessment of the intensity of hypergenic processes. To solve these problems, various quantitative coefficients were used: mineralogical, granulometric, granulometric monofractions of ilmenite and chemical composition of ilmenite. There weare used of their groups: mineralogical petrofond, tectonic, sedimentation, paleogeographic coefficients; granulometric and statistical coefficients of the empirical distribution polygon (UPR) of sediments, calculated by weight and quantitative presentation systems and their efficiency (measuers: location - average size, trend, average; scattering - sorting, standard deviation, variations; deviations from the normal law of distribution - asymmetry, excess.