Abstract:
Qinghai Province is rich in mineral resources, mainly nickel, gold, lithium, silver, copper, zinc, lead and other advantageous metal minerals, the formation of the age of the main Silurian-Devonian, Carboniferous-Permian, Triassic, Tertiary and Quaternary, the metallogenic effect and the three phases (proto-palaeo-palaeo-new) Tethys Ocean evolution is closely related to the complex mineralization of geological environments, the metallogenic effect of the multi-phase, multi-types, multiple sources of the characteristics of the mineralization. The types of deposits that form important dominant metal minerals are: ① magmatic copper-nickel-cobalt deposits; ② carbonate-type niobium deposits; ③ porphyry-silicate-type copper, molybdenum, lead and zinc; ④ orogenic-type gold deposits; ⑤ shallow-forming, low-temperature hydrothermal-type silver deposits; ⑥ spate-deposited (SEDEX)-type copper, lead-zinc and cobalt deposits; ⑦ Mississippi River Valley-type (MVT)-type lead-zinc deposits, etc., among which magmatic-type copper-nickel deposits, orogenic-type gold deposits reached World-class large-sized and super-large deposits. According to the geological background of their formation, they are divided into 13 secondary tectonic units and 6 metallogenic provinces, which have experienced tectonic evolution in 5 time periods.