FIG. 8. Illustration of the complicated distribution of different rock types in the Twilight zone based on the 1:120 scale mapping by Hinchey et al. (2003). Dashed lines show the mine grid. The numbers in parentheses after rock names correspond to the rock types in the text. The mineralized melanonorite (6) is the latest rock type of the Lac des Iles intrusive complex in the outcrop. It shows the intrusive contacts with fine-grained gabbro (10), leuconorite (4), norite (5), and medium-grained gabbro (8).