Abstract
The ore-bearing dikes widespread in the Yana-Kolyma metallogenic belt vary in composition from granite porphyry to lamprophyres, gabbromonzonite, and dolerite. The dikes make up suites tens of kilometers in extent and up to 8–10 km wide or fields a few thousand square kilometers in area. Previously, the ore mineralization was traditionally referred to the gold-quartz type superimposed on dikes. However, isotopic and thermobarogeochemical data indicate that the mineralization is close to an intrusion-related gold deposit. A deep magma chamber could have been a source of sulfur in sulfides from beresites and quartz veins hosted in the Kolyma dikes. The deposits considered in the paper are permissive for large economic reserves with low and medium Au grades.
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Dedicated to the eightieth anniversary of the first Kolyma expedition, headed by Yu.A. Bilibin
Original Russian Text © A.V. Volkov, V.N. Egorov, V.Yu. Prokof’ev, A.A. Sidorov, N.A. Goryachev, A.V. Biryukov, 2008, published in Geologiya Rudnykh Mestorozhdenii, 2008, Vol. 50, No. 4, pp. 311–337.
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Volkov, A.V., Egorov, V.N., Prokof’ev, V.Y. et al. Gold deposits in dikes of the Yana-Kolyma belt. Geol. Ore Deposits 50, 275–298 (2008). https://doi.org/10.1134/S1075701508040028
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DOI: https://doi.org/10.1134/S1075701508040028