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Problems at the Chuquicamata and Braden Copper Properties
Test Tube to 10000ton Plants by L D Ricketts
Fighting Fire with Steam Shovels by Robert E Tally
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aerial tramway Alaska Alaska Juneau amount Anaconda anodes average Braden Copper bus bars cars casting cathodes cent copper chalcocite chalcopyrite Chile choice of methods Chuquicamata churn drilling coal Cobija considerable cost daily capacity decided deposit Douglas Island drilling dump electric electrolytic electrolytic copper employes experience exploration extraction financing furnace geophysical methods geophysical survey gold grade gravity concentration haulage Hayden system holes increased industry interest iron Juneau labor ladle ladlers later machine material metal mill Minerals Separation mining molds multiple system necessary obtained operation option orebody oxidized pillar plates porphyry possible problem production profitable prospect prospector quartz recovery refineries Refining Roan Antelope rocks salt domes seam series system shaft shares slime smelter Smelting steam shovel structure success sulphide sulphuric acid surface tank room tion tipple Tocopilla tonnage tons torsion balance treatment waste width young engineer