FIG. 1. Geologic map of the Carajás Copper-Gold belt, showing the major iron, manganese, Fe oxide Cu-Au-(U-REE) deposits and the Breves Cu-Au-(W-Bi-Sn) deposit. Modified from Tallarico et al. (2004). The Itacaiúnus shear zone is a broad zone centered on the Carajás fault and bounded by the two major faults (bold lines) shown to the north and south.