Minerals YearbookThe Bureau, 1937 |
Contenido
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Otras ediciones - Ver todas
Términos y frases comunes
alloys aluminum amalgamation anthracite antimony average bauxite bituminous coal bullion Bureau of Mines byproduct cents coke Colorado concentrates consumption copper Copper Lead Zinc Creek crude cyanidation district in 1936 district.-The domestic dredge Dry and siliceous exports figures fuel furnaces gold and silver Gold Reserve Act Gold Silver Copper gross tons Idaho imports increased industry lead-zinc lithopone lode mines long tons magnesite manganese manufacture metric tons Mexico Mineral Mines producing molybdenum Montana Nevada nickel old tailings operated ounces Fine ounces ounces of gold ounces Pounds Pounds ounces Value output oxide Pennsylvania pig iron placer mines plant platinum production of gold Quantity Value recovered metals recovery refined reported scrap shipments shipped short tons siliceous Silver Copper Lead smelter smelting sold sphalerite statistics steel terms of recovered tonnage tons Fine ounces Total value treated troy ounces United Utah Value Pounds Value zinc oxide
Pasajes populares
Página 543 - Secondary metals" are those recovered from scrap metal, sweepings, skimmings, and drosses, and are so called to distinguish them from the metals derived directly from ores, which are termed
Página 181 - The two major markets for lead in the United States are New York and St. Louis; much of the lead produced in the United States is sold at prices based on quotations in these markets.
Página 353 - ... of lead. 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 578 - H.,0 gas from the stocks which were still at high temperature. These gases found ready egress to the surface along tension fissures without appreciably heating the country rock. They deposited magnetite and hematite in the fissures and replaced the contiguous fractured limestone. The period of,, gas emanation was brief and the hydrothermal stage probably evolved during the later magmatic history never reached this area.
Página 565 - TABLE 1. -Total consumption of ferrous scrap and pig Iron in the United States In 1936...
Página 66 - Value not included in total value for State. i Oold valued per ounce, as follows: 1934, $34.95; 1935, $35. « No canvass. ' Not valued as ore; value of recoverable metal content included under the metals.
Página 790 - ... plants since 1919. Otherwise, the fuel equivalent is calculated from the reported horsepower of installed water wheels, assuming a capacity factor of 20 percent for factories and mines and 40 percent for public utilities.
Página 907 - Includes products of tar distillation conducted by coke-oven operators under same corporate name, except, however, phenol and other tar acids produced at Clairton, Pa.
Página 590 - The figures represent the approximate values f . ob at the blast furnaces and do not include the values of ferroalloys. The general average value for all grades of pig iron at the furnaces, exclusive of ferro-alloys, decreased 2 per cent in 1926 and was the lowest for any year since 1916.
Página 589 - The values given represent the approximate amounts received for the iron fob furnaces and do not include freight costs, selling commissions, and other items that are figured in some of the market prices of pig iron as published in trade journals. The pig iron shipped includes metal produced from foreign as well as from domestic ore. The pig iron made from...