Gold and Silver: Comprising an Economic History of Mining in the United States, the Geographical and Geological Occurrence of the Precious Metals, with Their Mineralogical Associations, History and Description of Methods of Mining and Extraction of Values, and a Detailed Discussion of the Production of Gold and Silver in the World and the United StatesJ. Wiley & Sons, 1908 - 727 strani |
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Zadetki 1–5 od 100
Stran ix
... Square - Set at Durant Mine , Aspen , Colorado facing 452 455 457 460 Patio Mills at Pachuca , Mexico Surface Plant and Dumps , Portland Mine , Cripple Creek , Colorado . facing 509 524 ABBREVIATIONS . Eng . and Min . Jour . Min ix.
... Square - Set at Durant Mine , Aspen , Colorado facing 452 455 457 460 Patio Mills at Pachuca , Mexico Surface Plant and Dumps , Portland Mine , Cripple Creek , Colorado . facing 509 524 ABBREVIATIONS . Eng . and Min . Jour . Min ix.
Stran xi
... Jour . Min . and Sci . Press . - - Engineering and Mining Journal . Mining and Scientific Press . Repts . and Bulls . , U. S. G. S. - Reports and Bulletins , United States Geological Survey . T. A. I. M. E. - Transactions American ...
... Jour . Min . and Sci . Press . - - Engineering and Mining Journal . Mining and Scientific Press . Repts . and Bulls . , U. S. G. S. - Reports and Bulletins , United States Geological Survey . T. A. I. M. E. - Transactions American ...
Stran 8
... buy and consume the iron ) , than to take the fuel to the ore and carry back most of the finished product . 1 Eng . and Min . Jour . , Vol . 81 , p . 1247 . " The revolution in the last half - century in 8 GOLD AND SILVER .
... buy and consume the iron ) , than to take the fuel to the ore and carry back most of the finished product . 1 Eng . and Min . Jour . , Vol . 81 , p . 1247 . " The revolution in the last half - century in 8 GOLD AND SILVER .
Stran 29
... Jour . , Vol . 51 , p . 654 . In 1692 Father Kino established a mission at Tucson , then called San Xavier del Bac , but owing largely to his protracted absence 1 Min . and Sci . Press . , Vol . 47 , p . 292 . 2 American Anthropologist ...
... Jour . , Vol . 51 , p . 654 . In 1692 Father Kino established a mission at Tucson , then called San Xavier del Bac , but owing largely to his protracted absence 1 Min . and Sci . Press . , Vol . 47 , p . 292 . 2 American Anthropologist ...
Stran 39
... Jour . , Vol . 20 , p . 575 . 2 Rept . on the Geol . and Topography of a Portion of the Lake Superior Land District in the State of Michigan , Doc . No. 69 , 1850 , p . 179 . 3 Eng . and Min . Jour . , Vol . 20 , p . 575 . Messrs ...
... Jour . , Vol . 20 , p . 575 . 2 Rept . on the Geol . and Topography of a Portion of the Lake Superior Land District in the State of Michigan , Doc . No. 69 , 1850 , p . 179 . 3 Eng . and Min . Jour . , Vol . 20 , p . 575 . Messrs ...
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Alaska amalgamation andesite argentiferous assay auriferous average bed-rock blende bornite calcite California Carolina cent chalcopyrite chloride chlorination Colorado Comstock lode concentration considerable copper country-rock County Cripple Creek cyanide cyanide process Deep Mines deposits depth diorite discovered discovery district dollars drift employed extraction feet free-gold furnace galena gangue gneiss gold and silver gold production Gold-bearing granite gravel gray copper Gulch Hill hydraulic Ibid Idaho inches iron Jour lead limestone located mercury method Mexico mill Mineral Industry Mineral Resources Mines and Minerals Montana Mountain Nevada North occur operations ore-bodies ounces output oxide placer mines placers porphyry precious metals Press probably production of gold pyrite pyrrhotite quantities quartz quartz-veins quartzites Rept rhyolite River rocks schists shaft siliceous silver production Silver-bearing slate sluices smelting solution South stamps stope sulphides sulphurets surface TABLE tellurides tellurium tetrahedrite timber tion tons Total tunnel Utah yield zinc