Stable isotope constraints on genetic models for gold-quartz, antimony-gold-quartz, tin and tungsten-tin mineralisation, Hodgkinson Province, northern Queensland.

The gold veins are hosted by subgreenschist to greenschist facies metasediments and show no spatial association with granitic rocks. They have distinctive mesoscopic textures characteristic of mesothermal veins and are isolated in structural and lithologic domains by post-mineralisation faulting. In some areas the tin mineralisation, which is spatially related to the late Palaeozoic granitoids, appears to postdate the gold mineralisation. Oxygen and hydrogen isotope studies confirm a dominantly magmatic source for tin and tin-tungsten mineralisation. Although a distal magmatic contribution cannot be discounted, the gold-quartz and antimony-gold-quartz veins were probably deposited from deep upwardly migrating fluids generated during regional tectonism.
The gold veins are hosted by subgreenschist to greenschist facies metasediments and show no spatial association with granitic rocks. They have distinctive mesoscopic textures characteristic of mesothermal veins and are isolated in structural and lithologic domains by post-mineralisation faulting. In some areas the tin mineralisation, which is spatially related to the late Palaeozoic granitoids, appears to postdate the gold mineralisation. Oxygen and hydrogen isotope studies confirm a dominantly magmatic source for tin and tin-tungsten mineralisation. Although a distal magmatic contribution cannot be discounted, the gold-quartz and antimony-gold-quartz veins were probably deposited from deep upwardly migrating fluids generated during regional tectonism.