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Date: 2008-02-29 17:57:42 Freeport-McMoRan Copper extraction techniques Porphyry copper deposit El Chino Mine Copper Open-pit mining Copper mining in Arizona Copper mining in the United States Mining Phelps Dodge Safford Mine		Add to Reading List Source URL: www.fcx.com Download Document from Source Website File Size: 2,51 MB Share Document on Facebook

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