South Australia has two of the world's largest metal deposits, commonly called world-class deposits. These are Broken Hill in the Curnamona Craton and Olympic Dam in the Gawler Craton. Broken Hill is the largest Zn-Pb deposit in the world and Olympic Dam is evolving to be the largest Cu-U deposit. Despite the Gawler Craton hosting a world-class deposit and a number of related smaller deposits,
... [Show full abstract] the area is relatively under-explored and future discoveries of 1600 Ma Cu-U, 1686 Ma Zn-Pb and Au deposits can be expected. The abundance of iron formations in the Gawler Craton will result in more iron mining and, with the iron minerals operating as a redox barrier, more Au discoveries. There are unaddressed long-term base load electricity and water supply risks that may constrain the growth of industry in the rest of southeast Australia.