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bitumen mining gold in portugal

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bitumen mining gold in portugal

Jul 21 2015 · The Gralheira gold deposits are situated in the TrasOMontes area of Northern Portugal The mine and deposits are in a territory with mining history The old Jales Mine delivered nearly 830000 ounces of gold during its many years of operation so the area is still likely to hold potential for future operations In the Gralheira deposit broad geophysical and geochemical studies have been done in

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