Regional geology map showing drill holes completed to date and hole RZDDH10 08 in progress, IP Chargeability anomalies hatched.

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1 Alteration Haloes Alteration facies in the Suarez-Misahuallí basin on the east side of the Rio Zarza gold project are complex, as they oerlap in time and space, are the result of weathering, diagenetic, olcanic and hydrothermal processes, and represent an eoling olcanic-hydrothermal system where both the host rocks and fluids are changing temperature and chemistry. Distal hydrothermal alteration haloes comprise perasie chlorite-epidote and haematite, intermediate alteration is typified by perasie silicification and disseminated sulphides, and proximal alteration is hydrothermal brecciation, argillic (quartz-illite) alteration, quartz-carbonate eining and massie replacement quartz. The alteration assemblage is typical of a low sulphidation type epithermal system, although there are some characteristics of intermediate sulphidation type mineralization. Chlorite-epidote-carbonate (propyllitic) alteration occurs as both perasie replacement of porphyritic feldspar crystals and groundmass, and also as eins. The perasie replacement eent is widespread and represents the distal alteration halo. Vein chlorite-epidote-carbonate eins cut the perasie eent, and occur closer to the core of the system. Perasie haematite alteration in the Suarez Fm appears to be partly diagenetic and stratiform. Howeer, the same alteration is obsered both in the Misahuallí and Zamora Batholith in the icinity of the basin, which suggests this is spatially restricted to the area of the basin. Haematite is indicatie of oxidizing meteoric water, which suggests a widespread zone of meteoric water percolation. Haematite also occurs in zoned eins and as martite alteration after magnetite, which is clearly hydrothermal origin. Silica alteration is manifested as massie quartz replacement and breccia matrix, perasie cementation, chalcedony/chert clasts, and as quartz eins, all of which are hydrothermal-related. Perasie silicification is a proximal alteration halo, and the chert clasts are deried from submarine effusion of silica-rich hydrothermal fluids in a submarine enironment forming a local and delicate sediment which is easily eroded. The massie quartz breccia and replacement intersected in hole RZDDH10-03A is formed at the core of a mesothermal hydrothermal ent. Quartz eins are relatiely lower temperature (epithermal) eent, are typically zoned with carbonate, chlorite and haematite, and oerprint the massie mesothermal quartz. Sulphides occur as primary (biogenic) carbonaceous sediments in the Suarez Fm, dissemination and einlets in the Suarez and Misahuallí, and in clasts and xenoliths of granodiorite and quartz feldspar porphyry deried from the Zamora Batholith. Disseminated-einlet sulphides and clasts and xenoliths in the Suarez and Misahuallí Fms are hydrothermal-related, but represent different age mineralizing eents. The dominant sulphide species is pyrite, with lesser marcasite, chalcopyrite and arsenopyrite. Chalcopyrite is generally associated with carbonate eins deeper in the section, and may be related to proximity to the underlying porphyritic intrusie and Cu abundance in the olcanics. Sulphides are both spatially and geochemically associated with anomalous gold. Inter-element correlations indicate gold is correlated with siler, arsenic and sulphur, which means gold and siler are associated with pyrite and pyrrhotite. Anomalous Au intersections in holes 01, 03A, 04 and 05 are all within the IP Chargeability body, which represents a sulphide alteration halo. Carbonate (primarily calcite) occurs as local discontinuous stratigraphic horizons in the Suarez Fm, and as eins. Calcareous mudstone (marl) units in the Suarez hae a distinctie fine grained black coloured appearance with ladder calcite einlets. The absence of carbonaceous material or fossil remnants in the calcareous mudstone suggests this is a chemical precipitate, possibly deposited from waters enriched in CO 2 from degassing of hydrothermal fluids into a submarine enironment. Carbonate einlets are typical at the top of the Misahuallí Fm andesite, and are probably a primary olcanic texture. Secondary calcite eins crosscutting the stratigraphic layers are of hydrothermal origin, with the occurrence and density of eins increasing towards the core of the system caused by upflow of hydrothermal fluids rich in CO 2. Magnetite alteration has been seen at the base of the Suarez Fm directly oerlying the massie hydrothermal quartz zone. Magnetite alteration has also been noted in outcrop of the Suarez Fm along the Rio Blanco, which is presumably at a higher stratigraphic leel, although the stratigraphy of the Suarez is indistinct. Magnetite is

2 typical of a higher temperature assemblage more commonly associated with porphyry style mineralization. Magnetite destructie alteration is more commonly seen in the core of the hydrothermal system, but only occurs in host rocks with primary magnetite abundance. Understanding the alteration haloes is key to ectoring to the centre of the mineralizing system, where high grade Au-Ag and base metals are deposited. Only the disseminated-einlet sulphides and perasie silicification hae distinctie geophysical responses in IP Chargeabbility and resistiity respectiely. Magnetite alteration would also hae a magnetic response, but this cannot be discriminated from the response of the Fruta and Misahuallí olcanics, which hae a characteristic strong magnetic response. Regional geology map showing drill holes completed to date and hole RZDDH10 08 in progress, IP Chargeability anomalies hatched.

3 Section looking NE through holes RZDDH10 03A and RZDDH10 07 with IP Chargeabillity anomaly. The target for hole 07 was to intersect the base of the chargeability anomaly at the sub Suarez unconformity

4 RZDDH10 06 Stacked section: anomalous Au, Ag, As, Cu and S at sub Suarez unconformity, and again bracketing the sub Misahuallí contact with the Zamora Batholith (marked by dashed line).

5 Anomalous Au intersections are enclosed within the IP Chargeability body and at the sub Suarez unconformity

6 Hole RZDDH10 07: Magnetite destructie epidote chlorite alteration with zoned quartzcarbonate sulphide eins in Fruta andesite Hole RZDDH10 07: Syngenetic pyrite in carbonaceous m 1250masl 1050masl Simplified Alteration Assemblages Rio Zarza Gold Project Hollín Fm - sandstone, shale Fruta Andesite - hornblende porphyritic andesite (upper) Suarez Fm - sandstone, wacke, conglomerate (lower) Suarez Fm - sandstone, wacke, conglomerate, carbonaceous mudstone Misahuall - feldspar porphyritic andesite í Fm Epithermal Mineralization - boiling point range Porphyry-Related Mineralization - skarn and porphyry Zamora Batholith - granodiorite 1250masl 1050masl Simplified Stratigraphic Column Rio Zarza Gold Project Granite Porphyry - quartz feldspar porphyritic granite Sulphides - disseminated py,mc,cpy, apy Epithermal Veins - zoned Qz-Cb-Cl-Ep Silicification - perasie Haematite - chrono-stratigraphic diagenetic

7 Hole RZDDH10 07: Misahualli feldspar porphyritic andesite, haematite perasie then epidote carbonate alteration Hole RZDDH10 07: Faulted/sheared Misahualli, ep chl alteration after 622m Hole RZDDH10 07: Oerprinted alteration

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