The field excursion "Metallogeny of the Southeastern Altai (Russia) and Northwestern Mongolia ore district, Permian-Triassic boundary" with total extension of about 2,500 km includes visits to a series of deposits: Cu-Co-W Karakul deposit, Ag-Sb Asgat (NW Mongolia) and Ozemoe (Gomy Altai) deposits, Cu-Hg-Ba Dzhilkydal and Mo-W greisen Kalguta deposits. The occurrences of the Late Paleozoic and Early Mesozoic mafic, alkaline-mafic and granitoid magmatism in this area were also examined along the route of the excursion. Many geological objects described in the guidebook were formed during the Permian-Triassic stage of magmatism, which was especially productive in terms of metallogeny: Sb-Hg (Aktash, Chagan-Uzun, Kurai), Ag (Asgat, Ozemoe, etc.), Mo-W (Kalguta), and Ni-Co arsenide (Askhatin-gol) deposits. This guidebook may be helpful both for geologists and students to understand the link between ore deposits and magmatic events. weiterlesen