Mineral Resources of the United States, Part 1U.S. Government Printing Office, 1917 - Digital images |
Contents
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Common terms and phrases
alloys aluminum amalgamation amounted Antimony Arizona assay average value bauxite California cent copper chalcopyrite Colorado compared concen concentrating plant Creek crude cyanide decrease deposits district in 1915 district.-The dredges electrolytic equipped feet flotation Fluorspar furnace galena galena concentrates geology gold and silver grade gross tons hematite Idaho important included increase Lake Superior land lead and zinc lead concentrates lead-zinc lease lessees lode long tons magnetite manganese Michigan Mineral Resources Missouri Montana Nevada nickel old tailings operated ounces of gold ounces of silver oxidized pig iron placer gold placer mines placer production platinum pounds of copper pounds of lead pounds of zinc principal pyrite quicksilver recovered recovery refined reported Rept rock shaft shipments short tons small quantity smelters smelting sold or treated sphalerite sphalerite concentrates sulphide Survey Bull total value troy ounces U. S. Geol United Utah yielded zinc carbonate zinc concentrates zinc silicate
Popular passages
Page 764 - WATSON, TL, and TABER, STEPHEN, Geology of the titanium and apatite deposits of Virginia: Virginia Geol.
Page 760 - These publications, except those to which a price is affixed, can be obtained free by applying to the Director, United States Geological Survey, Washington, DC The priced publications may be purchased from the Superintendent of Documents, Government Printing Office, Washington, DC ADAMS, GI, and others.
Page 120 - The lead and zinc mines of Wisconsin are in Grant, Iowa, and Lafayette counties and comprise the most important part of the ore deposits of the upper Mississippi Valley region, a historical review of which is given in the Illinois section of this report in Mineral Resources for 1914. A detailed description of the Wisconsin lead and zinc districts and of the mines in each district to the year 1906 is given by Bain.1...
Page 99 - The lead and zinc deposits of Illinois fall into two distinct regions marked by different mineral association and structural environment. Those of southern Illinois belong to the Kentucky-Illinois fluorspar district; those of northern Illinois belong to the upper Mississippi Valley region. NORTHERN ILLINOIS. The lead and zinc mines of northern Illinois are all in Jo Daviess County, the extreme northwest county of the State.
Page 313 - Report on the geology and mineral resources of the central mineral region of Texas: Texas Geol.
Page 146 - MINET, ADOLPHE, The production of aluminum and its industrial use, 1st ed., corrected (translated with additions by Leonard Waldo), 266 pp., 57 ills., New York, John Wiley & Sons, 1910.
Page 99 - ... shafts and by drilling. The ore deposits occur in the Galena dolomite and in the upper part of the Platteville limestone, both of Ordovician age. The ores are galena, smithsonite, and sphalerite, though the two latter are much less common now than formerly, when the deposits worked were mostly shallow and above water level. In early years the galena ores only were mined and the ore was taken from shallow pockets in quantities ranging from a few tons to several thousand. Although the lead output...
Page 266 - Gogebic producing in 1915 about 313,000 tons less than the State of Alabama, which is the next State in importance as a producer after Minnesota and Michigan. The Vermilion range is the fifth in importance of the six producing ranges of the Lake Superior district.
Page 129 - Origin of the zinc and lead deposits of the Joplin region, Missouri, Kansas, and Oklahoma: Bull.
Page 160 - States and its functions in the Bureau of Foreign and Domestic Commerce of the Department of Commerce and the...