Mt. Dunn Cu-Au Porphyry


  • 2010 Exploration Plan : 10-day mapping, sampling and drill target delineation
  • Zone of higher grade copper-gold mineralization discovered: up to 1.34 grams per tonne gold (g/t Au) and 0.57% copper (Cu) extending up to 1.5 kilometres south of existing drilling
  • Fourteen rock chip samples of quartz-sericite-pyrite altered porphyry with quartz-chalcopyrite veins and stockworks averaged 0.44 g/t Au and 0.22% Cu, including values up to 1.34 g/t Au and 0.57% Cu
  • Twenty-two rock samples, including eight historical sample assays, from the 190 metre wide zone average 0.67 g/t Au and 0.35% Cu
  • Copper-gold mineralization has been delineated over a strike length of 3,500 metres between 500 and 1,200 metres elevation
  • Mapping and rock chip sampling has demonstrated that higher grade mineralization exists below 900 metres elevation, confirming an increase in gold and copper grade with depth in drill hole MD09-01, which averaged 0.22% copper (Cu) and 0.28 grams per tonne (g/t) gold (Au) over 92.67 metres at the bottom of the drill hole (from 242 to 334.67 metres)
  • 2009 drilling intersected long intervals of strong silica/sericite/chlorite alteration with anomalous to low-grade Cu-Au mineralization (see table below)
  • 2009 drilling collared above 1,200 m elevation and statistical analysis of core samples strongly suggests improvement in grade with depth below about 1,000 m elevation