A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Mining practice and methods at the United Verde extension mining company, Jerome, Ariz.
Operations on high-grade deposit of copper sulphide containing some gold and silver, mined almost exclusively by square-set methods; 1200 tons of direct smelting ore produced daily; history of district; geology; development and mining; drifting and raising are generally done on contract; ventilation; fire hazards and fire-fighting equipment; efficiency data; mining costs.
Mining practice and methods at the United Verde extension mining company, Jerome, Ariz.
Operations on high-grade deposit of copper sulphide containing some gold and silver, mined almost exclusively by square-set methods; 1200 tons of direct smelting ore produced daily; history of district; geology; development and mining; drifting and raising are generally done on contract; ventilation; fire hazards and fire-fighting equipment; efficiency data; mining costs.
Mining practice and methods at the United Verde extension mining company, Jerome, Ariz.
U. S. Bur. Mines -- Information Cir
D'Arcy, R.L. (author)
1930
11 pages
20 Figs. on supp. plates
Report
English
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Mining methods and practices at United Verde Copper Mines, Jerome, Ariz
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Safety in hoisting at United Verde mine, Phelps Dodge corp, Jerome, Ariz
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Timber preservation at the United Verde Extension Mining Company
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