Both objects for U-Pb isotopic dating and methods of geochronological studies were justi ed. U-Pb isotopic precision dating of zircon, and baddeleyite ID-TIMS-method were carried out in different laboratories and convincingly proved that the formation of gabbronorite intrusions of zolotukhinsky complex, which characterized the Paleoproterozoic rift stage of evolution of the lithosphere of the Kursk unit occured 2066–2069 million years ago. <...> Sцderlund U. A simple way to extract baddeleyite ) / U. Sцderlund, L. Johansson // Geochem. <...> Geochronology of the Voisey’s Bay intrusion, Labrador, Canada, by precise U-Pb dating of coexisting baddeleyite, zircon, and apatite / Yu. <...> Ireland T. R. Considerations in Zircon Geochronology by SIMS / T. R. Ireland, I. S. Williams // J. M. Hanchar and P.W.O. Hoskin, Editors, Zircon. <...> Zircon Megacrysts: A Potential New Working Reference Material for Microbeam Determination of Hf–O Isotopes and U–Pb Age / Xian-Hua Li, Weng-Guo Long, Qiu-Li Li [et al.] // Geostandards and Geoanalytical Research. – 2010. – V. 34, Is. 2. – . 117–134. 26. <...> Krogh T. E. Improved accuracy of U-Pb zircon by the creation of more concordant systems using an air abrasion technique / T. E. Krogh // Geochim. <...> Krogh T. E. A low-contamination method for hydrothermal decomposition of zircon and extraction of U and Pb for isotopic age determination / T. E. Krogh // Geochim. et cosmochim. <...> Steiger R. H. Subcomission of Geochronology: convension of the use of decay constants in geo- and cosmochronology / R. H. Steiger, E. Jager // Earth Planet. <...> Stacey J. S. Approximation of terrestrial lead isotope evolution by a two-stage model / J. S. Stacey, I. D. Kramers // Earth Planet. <...> Обоснован выбор объектов для проведения U-Pb изотопного датирования и методик геохронологических исследований. <...> U-Pb изотопное прецизионное датирование ID-TIME методом по циркону и бадделеиту, проведенное в различных лабораториях, убедительно доказало, что формирование габброноритовых тел золотухинского комплекса, характеризующих рифтогенньш этап палеопротерозойской эволюции литосферы Курского блока, произоиию 2066-2069 млн лет назад. <...>