Abstract—Gold deposits of the Kyzylkum and Nurata regions of Uzbekistan are confined to the South Tien Shan orogenic belt. They are hosted in black shales (Muruntau and Myutenbai); carbonate, terrigenous, and volcanogenic rocks (Kokpatas and Balpantau); and in intrusive units (Zarmitan zone). The age of gold mineralization is 280–290 Ma, which corresponds to the age of postcollisional granitoid magmatism. Gold is observed as micro- and nanoscopic particles and is a part of various minerals (Au2Bi, AuTe2, AuAg2Te3, AuAgS, AuAg2Se3, AuSb2, etc.), which form inclusions in pyrite, arsenopyrite, antimonite, and quartz. These minerals form regular micro- and nanoscopic assemblages, which are direct signs of prospecting and evaluating gold ores of the distinguished mineral-geochemical types.
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Koneev, R.I., Khalmatov, R.A. & Krivosheeva, A.N. Finding forms and Micro- and Nanoscale Assemblages of Gold as Indicators of Formation Conditions, Distribution, and Typification of Orogenic Deposits of Uzbekistan (South Tien Shan). Geol. Ore Deposits 62, 731–742 (2020). https://doi.org/10.1134/S1075701520080061
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DOI: https://doi.org/10.1134/S1075701520080061