Mineral Resources of the United States, Parte1U.S. Government Printing Office, 1913 |
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Página 90
... deposits have practically been worked out and the land deposits are approaching exhaustion . In 1893 the production of phosphate rock in South Carolina reached its maxi- mum , when the production was 502,564 long tons . In 1911 there ...
... deposits have practically been worked out and the land deposits are approaching exhaustion . In 1893 the production of phosphate rock in South Carolina reached its maxi- mum , when the production was 502,564 long tons . In 1911 there ...
Página 172
... deposits of the Eagle Mountains , Cal . It is an economic paper dealing with the structure , character , and quantity of the ores and their relations to the associated rocks . These iron - ore deposits are in the northern part of the ...
... deposits of the Eagle Mountains , Cal . It is an economic paper dealing with the structure , character , and quantity of the ores and their relations to the associated rocks . These iron - ore deposits are in the northern part of the ...
Página 173
... deposits , Harder gives the following descriptions : 2 IRON - ORE DEPOSITS . The iron ores with associated metamorphic minerals occur as replacements in the dolomite . Locally , as at the east end of the area , they have replaced the ...
... deposits , Harder gives the following descriptions : 2 IRON - ORE DEPOSITS . The iron ores with associated metamorphic minerals occur as replacements in the dolomite . Locally , as at the east end of the area , they have replaced the ...
Página 175
... deposit of ore and associated gangue minerals in the district occurs along the upper ore horizon in the east end group of deposits . This ore body is exposed discontinuously for a distance of nearly 6,000 feet . It has a maximum width ...
... deposit of ore and associated gangue minerals in the district occurs along the upper ore horizon in the east end group of deposits . This ore body is exposed discontinuously for a distance of nearly 6,000 feet . It has a maximum width ...
Página 177
... deposit acquires on weathering a deep red- dish brown or rusty color which presents a marked contrast to the light buff to gray of the underlying sandstone . The rock in the iron deposits here described , when examined with the naked ...
... deposit acquires on weathering a deep red- dish brown or rusty color which presents a marked contrast to the light buff to gray of the underlying sandstone . The rock in the iron deposits here described , when examined with the naked ...
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Términos y frases comunes
1912 were valued Alaska amounted Arizona barrels base bullion bullion California carbonate cement chalcocite clay products coal coke Colorado compared concentrating plant County crude decrease deposits district domestic exports feet furnaces galena gold and silver hematite Idaho imports for consumption included under Miscellaneous increased industry Lake Superior lead and zinc lead concentrates lime limestone lode long tons magnetite manganese manganiferous manufacture metals Mexico Michigan mill mineral products mineral waters mines Missouri Montana Nevada North Carolina operated ounces in 1911 ounces of silver outcrop oxide Pennsylvania pig iron Pima County placers pounds of copper principal production in 1912 production of copper production of gold production of lead pyrite Quan quantity quarry ranks recovered recovery refined reported rock sand and gravel shaft shipped short tons smelter smelting sold South sphalerite spiegeleisen stone sulphide sulphur Tennessee tity tonnage total output total production total value United States Geological Utah Wisconsin yielded zinc concentrates
Pasajes populares
Página 361 - ... bonded warehouses or otherwise. On the arrival of the ores at such establishments they shall be sampled according to commercial 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,...
Página 405 - Provided, That on all importations of lead-bearing 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. On the arrival of the ores at...
Página 363 - Lead dross, lead bullion or base bullion, lead in pigs and bars, lead! in any form not specially provided for in this...
Página 406 - Provided further, That all labor performed and services rendered pursuant to this section shall be under the supervision of an officer of the customs, to be appointed by the Secretary of the Treasury, and at the expense of the manufacturer...
Página 405 - That the works of manufacturers engaged in smelting or refining, or both, of ores and crude metals, may upon the giving of satisfactory bonds be designated as bonded smelting warehouses. Ores or crude metals may be removed from the vessel or other vehicle in which imported, or from a bonded warehouse, into a bonded smelting warehouse without the payment of duties thereon and there smelted or refined, or both, together with ores or crude metals...
Página 363 - Lead, acetate of, white, and nitrate of, 1J cents per pound; acetate of, brown, gray, or yellow, 1 cent per pound; all other lead compounds not specially provided for in this section, 20 per centum ad valorem.
Página 405 - 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 473 - In comparing the values of ore and metal it should be borne in mind that the value given for the ore is that actually received by the producer, whereas the value of the lead is calculated from the average daily quotations at New York.
Página 296 - No. 185, which may be obtained on application to the Director of the United States Geological Survey, Washington, DC...
Página 405 - And provided further, That the said metals so producible, or any portion thereof, may be withdrawn for domestic consumption, or transferred to a bonded customs warehouse, and withdrawn therefrom, and the several charges against the bonds canceled upon the payment of the duties chargeable against an equivalent...