Central Arctic gold­-bearing copper-­molybdenum-­porphyric belt

The article is devoted to gold-bearing copper-molybdenum-porphyry targets of Taimyr and Severnaya Zemlya, which were discovered during geological surveys from 1972 to 2013 but have not been described in literature. Based on the study of the most significant targets and patterns of their distribution, potential ore clusters with localized undiscovered resources and metallogenic areas united in Late Paleozoic and Early Mesozoic structural metallogenic zones were identified. When completing sheets of the State Geological Map 1000/3 of the Taimyr-Severnaya Zemlya series in 2008–2020, the Late Paleozoic-Early Mesozoic Central Arctic gold-bearing copper-molybdenum-porphyry belt was outlined. It is confined to the border of the North Asian Craton and the North Kara Geoblock of Arctida and extends for a distance of more than 900 km, reaching a width of 80 km on the Chelyuskin Peninsula. The leading role in its formation is played by Late Paleozoic-Early Mesozoic plutonic-hydrothermal intrusive ore-forming systems associated with the formation of granite-porphyry intrusions in the Early Carboniferous (340–330 Ma) in Severnaya Zemlya, mid-alkaline granite-porphyry intrusions in the Late Permian (254–258 Ma) in Northern Taimyr, and syenitegranosyenite-porphyry intrusions in the Middle-Late Triassic (249–230 Ma) in Western and Central Taimyr.

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