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FEATURED MINING COMPANY
GOLDCORP INC.
ARGENTINA
Alumbrera: is located about 1,100 km northwest of Buenos Aires and six hours by paved and dirt roads from the airport at San Miguel de Tucumán.
The mine is situated in a valley west of the easternmost range of the Andes at an elevation of 2,600 m above sea level.
Standard truck and shovel mining techniques are employed in the open pit mine, utilising 42 cubic m shovels and 220 ton haul trucks to move both ore and waste. Mining is carried out on 17- m benches, with 2- m sub-drill, and ore is hauled to processing facilities nearby.
Current mineral reserves have a low waste to ore ratio of an average of 2:1 for the 2007 life-of-mine plan.
Operation of the mine is carried out at an elevated cut-off grade, which is reduced over the mine life to the economic cut-off grade. This practice requires that some ore be stockpiled for later processing. |