Gold-ore metallogeny of the Yenisey ridge: geological-structural province, structural types of ore fields

The article describes the geological location and the genesis of gold-ore deposits of the Yenisey Ridge - one of the richest gold-bearing world provinces. Prevailing confideness of gold-bearing projects to the Korda and the Uderey Riphean suites is revealed on the basis of statistical analysis. Deposits are developed in folding and fault metamorphism zones in the area of flexure bending of Riphean strata by intruding granitoid masses. Ore-bearing hydrotherms are genetically associated with ultramorphism and granite formation zones. The main types of structures of ore fields are folding zones: in S-shaped disjunctive faults at the limbs of line anticlines; complicating the limbs of compensational synclines in contacts with granitoids; in the contact area (non-conformity) of Lower Proterozoic and Riphean strata; in trough sedimentation basins. Nepheline intrusions take a specific position in gold-bearing occurrences of the Yenisey Ridge. Their commercial value requires study. The age of gold mineralization of the Yenisey Ridge corresponds to the range of 847-605 MA. In some deposits there probably was a stage of re-distribution of gold-ore mineralization during the Devonian Age (364-368 MA).