Target Types

Rio Grande

Geology

Four (4) distinct mineralization styles, or target types, have been identified at the Rio Grande property:

1.	Cu-Au Oxide: Near surface, fracture-controlled copper oxides ±sulphides (at depth) with gold (green target zones Figure 1),

		1.	Occur in a circular pattern centered on the Rio Grande complex
		2.	Low sulphide
		3.	Low quartz
		4.	Strong fracture control
		5.	Associated with Na-Ca / Biotite alteration
		6.	Magnetite common
		7.	Black and blue-green copper oxides after chalcopyrit

2.	Cu ± Au Deep Sulphide (Porphyry): Deeper porphyry copper-gold style mineralization (blue target zones Figure 1),

		1.	Centered on & possibly 400-600m depth in the middle of the circular pattern centered on the Rio Grande complex
		2.	Pyrite - Chalcopyrite
		3.	Associate with classic quartz stockwork
		4.	Associated with potassic alteration
		5.	Magnetite common in area above

3.	Structurally-controlled Au (± Cu): Structurally controlled gold (±copper) mineralization associated with pyrite (red target zones Figure 1),

		1.	Associated with Archibarca trend faults and fracture zone
		2.	Associated with limonitic oxidation zones
		3.	After Pyrite (± Chalcopyrite)?
		4.	No obvious quartz veinin
		5.	Appears to overprint the Cu-Au style (1) of mineralization

4.	Porphyry Au ± Cu (Linderos-type): Gold-copper mineralization associated with quartz-magnetite stockworks in diorite intrusive rocks similar to the near by Linderos deposit (yellow target zones Figure 1),

		1.	Associated with diorite intrusion
		2.	Associated with quartz-magnetite veinlets
		3.	Appears to overprint the Cu-Au style (1) of mineralization