Mineral Resources of the United States, Parte1U.S. Government Printing Office, 1914 |
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Página xiv
... ground , and as calcined . There is no uniformity and there is no way of arriv- ing at the quantities and values of the quarry products except in the condition as first marketed . The desirability of continuing to base the figures of ...
... ground , and as calcined . There is no uniformity and there is no way of arriv- ing at the quantities and values of the quarry products except in the condition as first marketed . The desirability of continuing to base the figures of ...
Página cxlvi
... ground as a pigment . .short tons .. 1,000 10,000 51 Sulphur .. ..do .. 600 21,000 52 Asbestos ... ..do . 150 4,312 53 Rutile . .pounds .. 100 400 54 Lithographic stone .. ..short tons .. Total value of nonmetallic mineral products ...
... ground as a pigment . .short tons .. 1,000 10,000 51 Sulphur .. ..do .. 600 21,000 52 Asbestos ... ..do . 150 4,312 53 Rutile . .pounds .. 100 400 54 Lithographic stone .. ..short tons .. Total value of nonmetallic mineral products ...
Página cxlviii
... ground as a pigment .. .short tons .. 2,000 20,000 52 Sulphur ... do .... 500 12,000 53 Asbestos ... 54 Rutile ... .do .. .pounds .. 1,000 30,000 600 2,000 55 Lithographic stone .. .short tons .. 56 Total value of nonmetallic mineral ...
... ground as a pigment .. .short tons .. 2,000 20,000 52 Sulphur ... do .... 500 12,000 53 Asbestos ... 54 Rutile ... .do .. .pounds .. 1,000 30,000 600 2,000 55 Lithographic stone .. .short tons .. 56 Total value of nonmetallic mineral ...
Página 4
... ground the Perry mine has been constantly enlarged until it is now 125 to 150 feet in depth . Its diameter at the surface is approximately 250 to 300 feet . Test pits have been sunk 20 to 25 feet below the bottom , and good ore has been ...
... ground the Perry mine has been constantly enlarged until it is now 125 to 150 feet in depth . Its diameter at the surface is approximately 250 to 300 feet . Test pits have been sunk 20 to 25 feet below the bottom , and good ore has been ...
Página 5
... ground two rotary driers with a capacity of 3 carloads a day . The ore in the process of drying goes through both , as they act as twins . They are about 40 feet in length , are 2 and 3 feet , respectively , in diameter , and make 7 or ...
... ground two rotary driers with a capacity of 3 carloads a day . The ore in the process of drying goes through both , as they act as twins . They are about 40 feet in length , are 2 and 3 feet , respectively , in diameter , and make 7 or ...
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Términos y frases comunes
alloys aluminum amounted antimony average value barrels bauxite bismuth brick bullion cent clay products coal Colorado compared concentrating plant copper County in 1913 Creek crude cyanide decrease deep mines deposits derived dredges feet furnaces galena galena concentrates geology gold and silver Hematite important included increase Joplin Lake Superior land lead and zinc lead concentrates lead-zinc lease lessees limestone lode long tons Magnetite manganese Michigan mill mineral products Mineral Resources Minnesota Missouri Nevada operated ounces of gold ounces of silver output oxide pig iron placer mines platinum pounds of copper pounds of lead principal producing mines production in 1913 production of gold pyrite Quan quarries recovered recovery reported rock shaft sheet ground shipments short tons smelters smelting sold or treated sphalerite sphalerite concentrates stone sulphide Survey Bull tity tonnage total value tungsten U. S. Geol United Utah Virginia yield zinc carbonate zinc concentrates zinc silicate
Pasajes populares
Página iv - Survey and the classification of the public lands and examination of the geological structure, mineral resources, and products of the national domain.
Página 606 - 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.
Página 581 - ... 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, except in case of ores that shall be removed to a bonded warehouse to be refined for...
Página 606 - ... metals of home or foreign production: Provided, That the bonds shall be charged with...
Página 606 - 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 80 - Of these openings there are five or six, the "top," "middle," and "third" being the most prolific of ore. The "flats" and "pitches" common in the Wisconsin mines have been found in only one or two instances in Iowa. The crevices have an east-west trend and sometimes extend considerable distances, being mined at different places, in which case they are known as "ranges.
Página 581 - ... reexported or the regular duties paid thereon within six months from the date of the receipt of the ore. All labor performed and services rendered under these regulations 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 221 - Northern districts. — The outlying districts in Gilpin County are the .Vermilion district, 4 miles northwest of Central City; Pine district, 7 miles northwest of Central City; Independence and Union districts, 9 miles north of Central City, embracing Perigo and Rollinsville, Lump Gulch, and Moon Gulch sections...
Página 581 - 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...
Página 130 - CENTRAL AND SOUTHEAST MISSOURI. The ore deposits of central and southeast Missouri reach in a more or less connected belt from the region of Benton, Pettis, Morgan. Moniteau, Cole, and Miller counties on the northwest to the northern and eastern flanks of the St. Francis Mountains on the southeast. It is also true that there are scattered areas where more or less mining has been done all the way between the northwest end of this belt and the Joplin region, so that strictly speaking the lead and zinc...