Since the late 1920’s, numerous companies have carried out various exploration programs on the main blocks in the area, particularly the Beauchastel Copper and Ribago 98 blocks (Despina Gold Mines and Ribago Rouyn Mines in the 1940’s and 50’s, Beauchastel Copper Mines in the 1960’s). Since 1975, Noranda Exploration with partners Cambior and Central Asia Goldfields, systematically explored by drilling and down-hole geophysics - the “C” contact at depths of 300 m to the west to more than 1,500 m to the east.
Two types of mineralization are known in the area:
Massive sulfide lenses and associated stringer zones.
- The Ribago massive sulfide orebody with historical resources
- The Ribago West Zone showing has reported stringer zone grades of up to 1.24% Cu over 16.2 m and 7.8 g/t Au and 1.25% Cu over 1.5 m in drill holes.
- The New Ribago (south zone) showing - 9.63% Cu over 0.75 m and 3% Cu over 1.3 m in channel samples taken from a stringer zone.
Eleven quartz-copper-gold veins striking east-west and dipping steeply to the north occur within the Beauchastel Copper block. They crosscut the Amulet Andesite over the “C” horizon and could represent the remnants of underlying hydrothermal fluid channel ways. Veins range in size between 0.3 to 3 m in width and tens to hundreds of meters in length.
3D (gOcad) compilation is in progress.