New Kaolin-Bearing Province of Russia in the Southern Part of the Voronezh Anteclise

The lithofacies analysis of the Mamon sequence showed that secondary kaolin deposits, forming a new kaolin-bearing province in the southern part of the Voronezh Anteclise, are associated with a complex of deluvial–proluvial, lacustrine–boggy, and floodplain–oxbow deposits. The main ore minerals are kaolinite, quartz and secondary iron oxides, and gibbsite. The presence of both terrigenous and authigenic kaolinite was revealed. An organic substance played an important role in the formation of the latter, as well as gibbsite.