Middle–Late Triassic magmatism in the Hutouya Fe–Cu–Pb–Zn deposit, East Kunlun Orogenic Belt, NW China: Implications for geodynamic setting and polymetallic mineralization

The Hutouya Pb–Zn mining district in the Qiman Tagh region in NW China is a zoned skarn district with inner Fe–Sn–Cu–Co ores and outer Pb–Zn skarn mineralization. Temporal coincidence of 40Ar/39Ar plateau age of ore-stage phlogopite (226.9 ± 1.5 Ma) with weighted mean LA–ICP–MS U–Pb ages of zircons (230.3 ± 3.7 and 221.6 ± 1.3 Ma) and 40Ar/39Ar plateau ages of biotite (229.6 ± 2.3 and 224.7 ± 2.6 Ma) in the spatially-associated monzogranite...