At Surmont, instead of open-pit mining, the bitumen is melted out of the ground by injecting steam.
Buy it and you make some open-pit mine in Arizona a little deeper.
There are also fears that the mine being open-pit will contaminate water supplies.
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De Beers is active in every category of industrial diamond mining: open-pit, underground, large-scale alluvial, coastal and deep sea.
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The open-pit mine, which was once owned by Anaconda, has sat abandoned since 1978 after Anaconda sold the property.
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The geology in Texas allows for a mining procedure called "in situ" recovery, cheaper than traditional seam or open-pit mining.
The big prize here is a 20% stake in the Fort Hills oil sands project, an open-pit mining operation targeting 3.4 billion barrels of bitumen.
Vast open-pit mines that spew clouds of dust into the air scar a landscape that locals say was largely pristine only a few years ago.
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In December announced that production from its biggest open-pit mines in South Africa and Botswana, which had been running at full capacity, would be reduced until diamond demand recovers.
Bigger is better at open-pit mines at the top of the Andes or on the vast oil sands of western Canada, since miners spend up to 30% of their budget hauling.
Timmins owns 100% of the open-pit heap leap operation.
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The delays were caused by new Argentine import restrictions, which the company said has hindered its ability to purchase necessary spare parts in-country to keep all open-pit mining equipment in continuous operation.
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Toronto's Northland Power wants to convert an old open-pit iron ore mine in Ontario into a waterfall five times the height of Niagara Falls, which could be used to generate power.
But at a nearby school, we are shown what Calacharo says is the norm, a small cluster of putrid open-pit latrines made of mud bricks worn to mere shells by rain and lack of repair.
Based in Pheonix, Phelps Dodge has copper mining operations in the U.S., Chile, Peru and Congo, while New Orleans-based Freeport operates the vast open-pit Grasberg gold, copper, and silver mine in Indonesia, and has reserves of about 37 billion pounds of copper and 40 million ounces of gold.
Serra Pelada, at its peak in the 1980s, saw as many as 80, 000 artisanal miners (called garimpeiros) mine roughly 2 million ounces of gold as well as platinum and palladium from a hand-dug open pit.
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They set up the office like a trading floor: an open, 10, 000-square-foot pit with monitors tracking air traffic.
Federico Bloch, a Salvadorean who controls all the airlines that matter in the region, has assented to an open-skies agreement with the United States that will pit him against the big American airlines.
While we focused on waste removal, our ore release from the open pit suffered and we dipped into our lower-grade stockpile to feed the mill.
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Then, after the Comex pit close, came the minutes of the June 21-22 meeting of the Federal Open Market Committee.
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