... of 198 tons in the Kyzyk-Chadr deposit, and the East Tannu-Ola ore district with gold resources of 68.3 tons. Thus, the intricate geologic development of the Tyva area and various geologic events, including large-scale magmatic processes, led to the formation of both gold and gold-bearing deposits...

... Formation (D 2 ), 2 , volcanosedimentary rocks of the Kendei Formation (O 3 or D 1 ), 3 , volcanosedimentary rocks of the Khamsara Formation (є 1 ), 4 , metamorphic rocks of the Bilin Formation (R 3 ); intrusions: 5 , Bren’ syenite–granosyenite–granite complex (O 3 or D 1 ), 6 , Tannu-Ola...

...-Lebedskoe in Mountainous Shoria; and Tardanskoe and Khopto in Tuva ( Fig. 1 ). Most of them are of industrial significance ( Table 1 ). The genesis of these deposits was associated with the Lower and Middle Paleozoic granite and granite–diorite magmatism, namely, the Tannu-Ola, Martaiga, and Ust’-Belovskii...

... (Tardanskoe, Khopto). Most of them are commercial ( Fig. 1 ). These deposits resulted from the Early-Middle Paleozoic granite and granite-diorite magmatism (Tannu-Ola, Martaiga, and Ust’-Belaya intrusive complexes) [ 3 ]. Skarns were produced at the early stages of contact metamorphism, whereas ore...

... and Mongolia [ 12 ]. At the Aksug deposit, northeastern Tuva [ 13 ] (Cu/Mo = 40–70), the ore-bearing porphyry complex (porphyritic tonalites and quartz-plagioclase porphyries of Devonian age (404–401 Ma, 40 Ar/ 39 Ar dating)) formed after the Tannu-Ola diorite-tonalite-plagiogranite complex of Ordovician...

... small ultramafic-mafic intrusions (sills, stocks, and dikes) of various ages are located in northwestern Mongolia and the adjacent Russian territories (Republic of Tuva, South Siberia). These intrusions, which are primarily located in the Tsagaan-Shiveet and Western Tannu-Ola ridges ( Fig. 1...