Mineral-geochemical features of alluvial gold of conglomerates of Permian age and modern alluvial deposits of the basin of the river have been studied. Ortoku Eekit (Olenek Uplift). It is established that the distinctive feature of gold from Permian conglomerates is its heterogeneous structure, which is due to the presence of different types of phases within a single gold (from 24% to 100% Au). This gold underwent deep epigenetic transformation in the intermediate collector of the Permian age and with the manifestation of Mesozoic tectonic magmatic activation. The main sources of placer gold of modern alluvium on the studied segment of the Rech. Ortoku Eekit are the gold-bearing conglomerates of the Permian age group of the Ortokinsky suite.
Key words: Olenek uplift, conglomerates, different-phase gold, internal structure of gold.