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ISSUE 4: The reclamation of Sudbury: The greening of a moonscape

The Sudbury area of Ontario, Canada has been producing ore for more than 100 years, and is also a regular tourist destination with dozens of scenic attractions and lakes. But in the 1970s, the now-beautiful landscape was regularly compared to the surface of the moon. Partnering with the Sudbury community and the Canadian government, mining companies Vale Inco and Xstrata have invested heavily in returning this once-desolate area to its former beauty.

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ISSUE 4: Mining fleet achieves 100,000 hours and beyond: People and processes are key

When the first Cat® 793A started operating at Freeport-McMoRan Copper and Gold’s Sierrita open-pit mine in 1991, nobody on site expected they’d be seeing that same truck hard at work more than 15 years later. But that truck is just one of five 793s at Sierrita with more than 100,000 hours of service time. According to Sierrita’s staff, the key is a proactive maintenance process and careful selection of operators.

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ISSUE 2: Asphalt reclamation paves way for efficient underground haulage

A well-maintained network of haul roads can be an important factor in determining a mine’s productivity. Potholes, dust and debris slow down trucks and can present safety hazards if left unchecked. By using cold mix asphalt paving more commonly used in surface highways, CVRD Inco was able to create a smooth and durable roadway for one of its underground truck fleets to increase safety and efficiency.

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ISSUE 1: Setting the pace for high production copper mining

With the right approach, even a low-grade mineral deposit can yield impressive results. Phelps Dodge earned its place as one of the world’s leading copper producers by efficiently turning low-grade deposits into high-production mines. Using a combination of technology, proactive maintenance practices and comprehensive monitoring, Phelps Dodge’s Morenci mine is able to produce 381,000 tonnes of coal annual from a deposit with a total ore grade of only 0.27.

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