Tabiiy fanlar

GEOLOGICAL AND TECTONIC STRUCTURE OF THE SARMICH ORE FIELD

Karatau Mountains, Sarmich deposit, gold mineralization, tectonic structures, Mylonite fault, ore-controlling structures.

Authors

  • Eldor MAHAMMADIYEV Tog‘ kon sanoati geologiyasi vazirligi mineral xomashyo bazasini rivojlantirish boshqarmasi boshlig‘i, Uzbekistan

This study analyzes the structural and tectonic conditions controlling the localization of gold mineralization within the Sarmich
ore field located in the Karatau Mountains. The results indicate that mineralization is mainly associated with sublatitudinal
tectonic zones and cross-cutting east-northeast trending faults. The Mylonite fault is identified as the principal ore-controlling
structure, representing a high-permeability zone that facilitates fluid migration and gold deposition. Ore bodies are associated
with cataclasites, breccias, and mylonitized rocks, where intense silicification and metasomatic alteration are developed.
Mineralization is predominantly localized at the intersections of tectonic structures of different orientations, which act as major
conduits for ore-bearing fluid migration.