Synthesis of the hydrothermal origins of select IOCG systems, their tectonic setting and fluids involved in economic Cu-Au mineralisation (Not to scale). The schematic block models are compiled from published studies and illustrate the geometries of zoned iron oxide-alkalic-calcic-hydrolytic alteration patterns and the location of Cu-Au ore bodies (Modified from Schlegel et al., 2020) - Schlegel et al. 2025.
Synthesis of the hydrothermal origins of select IOCG systems, their tectonic setting and fluids involved in economic Cu-Au mineralisation (Not to scale). The schematic block models are compiled from published studies and illustrate the geometries of zoned iron oxide-alkalic-calcic-hydrolytic alteration patterns and the location of Cu-Au ore bodies (Modified from Schlegel et al., 2020) - Schlegel et al. 2025.