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New Copper Ore Gold Jobs In Bc Andab

Oct 01, 2002 Whether gold remains in porphyry copper deposits is important both to their economic attractiveness and to the distribution of gold in the upper crust. Cu Au atomic ratios of porphyry copper ore deposits form a continuous range from about 5000 to 5,000,000 with a median near 40,000, which separates gold rich and gold poor deposits.

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