FIG. 2. A. Geologic map of the Igarapé Bahia Cu-Au deposit and geologic cross section A-A’ through the Acampamento Sul orebody (modified from Companhia Vale do Rio Doce/Docegeo, 1996, unpub.). Cpy = chalcopyrite; mgt = magnetite; sid = siderite. B. Structural map of the Igarapé Bahia copper-gold deposit. Coordinates and depth in hole for drill holes from which dated samples were taken are given in Table 2.