Mineral Resources of the United StatesU.S. Government Printing Office, 1912 |
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Página 10
... nearly four times that of 1882. ) The copper production in 1911 , $ 137,154,092 , was eight times that of 1882 , $ 16,038,091 , and the gold production was nearly three times , $ 96,890,000 in 1911 against $ 32,500,000 in 1882. The ...
... nearly four times that of 1882. ) The copper production in 1911 , $ 137,154,092 , was eight times that of 1882 , $ 16,038,091 , and the gold production was nearly three times , $ 96,890,000 in 1911 against $ 32,500,000 in 1882. The ...
Página 13
... nearly one- half the value of the total mineral production of the United States . The combined production of all the States east of the Mississippi ( and these States aggregate only 28.8 per cent of the total area of the country ...
... nearly one- half the value of the total mineral production of the United States . The combined production of all the States east of the Mississippi ( and these States aggregate only 28.8 per cent of the total area of the country ...
Página 16
... nearly 2,500,000 tons in 1885. As in all cases of this kind speculation became wild and values were unreas- onably inflated . The boom was succeeded by a relapse and two years of readjustment , and then followed a quarter century of ...
... nearly 2,500,000 tons in 1885. As in all cases of this kind speculation became wild and values were unreas- onably inflated . The boom was succeeded by a relapse and two years of readjustment , and then followed a quarter century of ...
Página 18
... nearly two - thirds of the gold and nearly one - third is obtained in the reduction of copper ores . Smaller quantities are obtained from lead and zinc ores and from placers . Cochise and Yavapai counties are the principal producers of ...
... nearly two - thirds of the gold and nearly one - third is obtained in the reduction of copper ores . Smaller quantities are obtained from lead and zinc ores and from placers . Cochise and Yavapai counties are the principal producers of ...
Página 28
... nearly 99 per cent . The total value of the metal production of Idaho , as reported by the mining companies , was $ 16,316,196 in 1910 and $ 19,100,894 in 1911 , of which Shoshone County is cred- ited with $ 14,416,910 in 1910 and ...
... nearly 99 per cent . The total value of the metal production of Idaho , as reported by the mining companies , was $ 16,316,196 in 1910 and $ 19,100,894 in 1911 , of which Shoshone County is cred- ited with $ 14,416,910 in 1910 and ...
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Términos y frases comunes
1911 were valued Alaska amalgamation Arizona average barrels base bullion Bull California cents per pound chalcocite clay products coal coke Colorado concentrates copper County cyanidation decrease deep mines deposits Derived product includes developed district domestic dredges drilling estimated exports feet figures furnaces gold and silver hematite Idaho imports for consumption included under Miscellaneous increased industry iron-ore Lake Superior lead limestone long tons magnetic magnetite manganese manganiferous manufacture metal Mexico Michigan mill mineral production mineral waters Minnesota Missouri Montana Nevada operations ounces in 1910 ounces of silver oxide Pennsylvania pig iron placer mines placers plant pounds of copper principal production in 1911 production of gold pyrite Quantity ranks refined reported rock Sand and gravel Sand-lime brick shipment short tons siliceous smelter smelting spiegeleisen stone sulphide Tennessee tion tonnage total output total production total value U. S. Geol Utah Value included Virginia yielded zinc content zinc oxide
Pasajes populares
Página 333 - Provided, That on all importations of lead-benring ores the duties shall be estimated at the port of entry, and a bond given In double the amount of such estimated duties for the transportation of the ores by common carriers bonded for the transportation of appraised or unappraised merchandise to properly equipped sampling or smelting establishments, whether designated as bonded warehouses or otherwise.
Página 211 - WORLD'S PRODUCTION OF GOLD. The production of gold in the world since 1860 is shown in the following table from the report of the Director of the Mint for the fiscal year ended June 30, 1911.
Página 783 - Sphalerite, or zinc blende, is the next important metallic mineral, but it occurs much less plentifully than galena. It is recovered as zinc middlings in the concentration of the fluorspar. The difficulty of making a clean separation of the zinc middlings has kept down the production of zinc. None has been sold from southern Illinois in the last four years.
Página 376 - ... methods under the supervision of government officers, who shall be stationed at such establishments, and who shall submit the samples thus obtained to a government assayer, designated by the Secretary of the Treasury, who shall make a proper assay of the sample and report the result to the proper customs officers, and the import entries shall be liquidated thereon, except in case of ores that shall be removed to a bonded warehouse to be refined for exportation as provided by law. And the Secretary...
Página 376 - PAR. 194. Zinc in blocks or pigs and zinc dust, one and three-eighths cents per pound; in sheets, one and five-eighths cents per pound; in sheets coated or plated with nickel or other metal or solutions, one and three-fourths cents per pound: old and worn-out, fit only to be remanufactured, one cent per pound.
Página 171 - VAN HISE, CR, and LEITH, CK, The geology of the Lake Superior region: Mon., vol.
Página 347 - States as shown by the report of the Bureau of Statistics of the Department of Commerce and Labor...
Página 148 - The next two pages, the southeast quarter of the northeast quarter and the southwest quarter of the northeast quarter, and so on through the other quarters of the section.
Página 784 - ... ores is so small that it is disregarded in the assay and sale of the concentrates. For this reason the smelter reports must be relied upon for the silver production. As may be seen by inspection of the table, the quantity of silver produced in any year bears no direct ratio to the quantity of concentrates smelted during that year.
Página 335 - It is not be be denied that for the individual year this gives closer figures. It is just as true that account of trade stocks should also be taken to arrive at accurate results; but this is manifestly outside the scope of this bureau. It has been found impossible to obtain a statement of stocks from one large producer since 1906 ; hence consumption has been calculated without reference to domestic stocks. A very considerable part, however, amounting to between one-fourth and one-fifth of the lead...