James St. John:
Volcanogenic massive sulfide (Kidd Creek Deposit, Neoarchean, 2.711-2.717 Ga; Kidd Creek Mine, north of Timmins, Ontario, Canada) 1
James St. John:
Volcanogenic massive sulfide (Kidd Creek Deposit, Neoarchean, 2.711-2.717 Ga; Kidd Creek Mine, north of Timmins, Ontario, Canada) 2