geophysical responses of hydrothermal rocks .gold and gold-copper deposits of the mara rosa magmatic arc, central brazil, occur in four main associations: au-ag-ba; cu-au;. au only and au-cu-bi. mining.
exploration geology course on how are mineral deposits formed27 aug 2017 . here we point out that because of our limitations in current mining . we'll also briefly discuss iron oxide copper gold deposits iocg in this talks such as . gold mineralization in the neoproterozoic mara rosa magmatic arc.
new perspectives on biogeochemical explorationunpublished results of surveys in the north mara region of. tanzania by placer dome . gold: jolu gold mine saskatchewan (summarized from. dunn, 2007).