Robuta

https://www.ausimm.com/publications/conference-proceedings/pacific-rim-congress-gold-coast-qld-may-1990/geologic-evolution-of-the-stringer-zone-underlying-the-hellyer-volcanogenic-sulphide-deposit.-tasmania Geologic Evolution of the Stringer Zone Underlying the Hellyer Volcanogenic Sulphide Deposit.... Underlying the 15 million tonne, high grade Hellyer volcanogenic massive sulphide deposit of western Tasmania is an extensive, well developed, and well... of thesulphide depositgeologicevolutionstringer