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Abstract
This paper examines the structural-tectonic conditions governing the formation and localization of gold mineralization within the Karatau Mountains (Southern Nuratau). It is established that the tectonic framework of the region is controlled by a multi-stage geodynamic evolution associated with the Caledonian, Hercynian, and Alpine tectonic cycles, resulting in the development of a complex fault system of varying orientations and morphologies.
The study reveals that the key role in the localization of gold-bearing objects is played by second-order fault zones associated with the Karatau deep fault, as well as by intersection nodes of sublatitudinal and east-northeast-oriented strike-slip faults. It is shown that the most favorable conditions for the formation of gold-sulfide mineralization are related to zones of increased fracturing, cataclasis, and milonitization, which provide enhanced permeability for hydrothermal fluids.
Using the Sarmich deposit as a case study, the morphology of ore bodies, their structural setting, and spatial distribution within tectonic zones are analyzed. It is concluded that multi-stage deformation processes and structural control play a decisive role in the formation of gold ore systems in the Karatau region.
References
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