Abstract
This study characterizes the geological structure of the Zhezheliv eluvial kaolin deposit, zoning and material composition of the weathering crust, and the mineral composition and physicochemical characteristics of eluvial kaolins. The relationship between rock-forming oxides and the distribution of the contents of Fe2O3, TiO2 and Al2O3 in the vertical section and through the area were investigated. The content of titanium and iron oxides in the kaolin concentrate and its granulometric composition were characterized, depending on the petrotypes of the weathered parent rocks. Maps of the relationship between isolines of the top surface of eluvial kaolins, isolines of their thickness and isolines of the surface of their base have been compiled. A correlation has been established between the topography of the bottom and top and the thickness of the kaolin deposit. A map of the spatial distribution of kaolin whiteness has been compiled. The vertical distribution of whiteness and Fe2O3 and TiO2 contents was investigated for individual wells in the kaolin deposit. It was found that there is no steady correlation between the content of Fe2O3 and TiO2 in the vertical section. The whiteness index of kaolins in the vertical section depends on the content of the indicated oxides or one of them. Based on the analysis of satellite images at different times, the change in the area of the disturbed geological environment during the deposit development through 2006-2020 was assessed.
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