Перспективы практического значения комплексного освоения бедных титан-циркониевых россыпей и кор выветривания Казахстана

Abstract

On the territory of the Republic of Kazakhstan there is a significant number of identified deposits related to weathering crusts and titanium-ilmenite placers, bearing industrial mineralization of rare and rare-earth elements. Deposits of placers and weathering crusts, formed as a result of bedrocks denudation in coastal and continental sedimentation conditions, form the basis of the mineral resource base of titanium-zirconium ores in the Republic of Kazakhstan. Titanium-zirconium deposits of placers and weathering crusts usually have low average contents of the main useful components (rutile, ilmenite, and zircon), while containing associated mineralization of valuable rare and rare earth elements. Various aspects of the complex development of poor titanium-zirconium placers, which are currently of no practical importance, are considered. Associated useful components of titanium-zirconium placers are usually represented by rare and rare earth elements, which are of practical importance in high-tech industries. The study of associated useful components in titanium-zirconium placers will allow considering the possibility of profitable exploitation and assessing the prospects for strengthening their mineral resource base. As a result of the review, analysis and assessment of known titanium-zirconium placers on the territory of Kazakhstan, the most promising ore occurrences have been identified, which may be of practical importance in their integrated development: Karaotkel deposit – increased contents of rare and rare earth elements in placer ores can be considered, not only as a source monomineral concentrates of ilmenite, zircon, quartz and quartzite, mica and feldspar ceramic raw materials, but also as a source of rare and rare earth elements; The Kundybai, Zayachye and Druzhba ore occurrences have the potential for the integrated development of titanium-zirconium placers with rare and rare-earth elements. The selected objects deserve prospecting and appraisal work with technical and economic studies of the possibility of integrated development.