Hearings, Reports and Prints of the Senate Committee on Interior and Insular AffairsU.S. Government Printing Office, 1965 |
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Outras edições - Ver tudo
Palavras e frases frequentes
acre-feet acres Angeles basin belt Cali California California Div Canyon carbonate Central Valley clay coal Coast Ranges Coastal Area contain copper Creek Cretaceous deposits Devonian district dolomite east Eddy fault fields Formation fornia gold ground water ground-water gypsum industrial Inyo Inyo County irrigation Jurassic Kern Klamath Mountains Lake limestone magnetite manganese marine metal metamorphic Mexico miles Mines and Geology Mines Bull Miocene Modoc Molybdenite molybdenum occur oxide Paleozoic pegmatites percent placer plant Pliocene Precambrian principal production projects province quartz Reclamation Rept reservoir River Sacramento Salton San Andres San Bernardino County San Diego San Francisco San Joaquin San Juan sand sandstone Santa sedimentary rocks sediments shale Shasta short tons Sierra Nevada silver sources storage strata Tertiary tion tons TRANSVERSE RANGES U.S. Bur U.S. Bureau U.S. Geol U.S. Geological Survey United veins Ventura volcanic rocks Water Resources western zinc zone
Passagens conhecidas
Página 255 - JW, 1959, Mercury — a materials survey : US Bur. Mines Inf. Circ. 7,941, p. 11-27. US Bureau of Mines, 1965, Mercury potential of the United States: US Bur. Mines Inf. Circ. 8,252, p. 1-376. Yates, RG, and Hilpert, LS, 1946, Quicksilver deposits of eastern Mayacmas district. Lake and Napa Counties, California : California Div. Mines Rept. 42. p. 231-286. MICA (Muscovite, biotite, and vermiculite) (By FG Lesure, US Geological Survey, Washington, DC) Moderate amounts of muscovite and small amounts...
Página 450 - Reservoir is jointly owned and operated by the US Bureau of Reclamation and the California Department of Water Resources. The...
Página 605 - Atlantic region in accordance with the provisions of the Watershed Protection and Flood Prevention Act, Public Law 566, 83d Congress, as amended (16 USC 1001-1008).
Página 237 - The rare-earth metals comprise the 15 elements having atomic numbers 57 to 71 — lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm). europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), and lutetium (Lu) . One of these, promethium, is not known to occur in nature.
Página 478 - Acre-foot (AC-FT, acre-ft) is the quantity of water required to cover 1 acre to a depth of 1 foot and is equivalent to 43,560 cubic feet or about 326,000 gallons or 1,233 cubic meters.
Página 605 - Producing agencies for some are the US Army Corps of Engineers, the US Bureau of Reclamation, and the International Water and Boundary Commission.
Página 381 - Thorium and rare earths in the United States, exclusive of Alaska and Hawaii : US Geol. Survey Mineral Inv. Resources Map MR-28.
Página 236 - Ames, LL, Jr., Sand, LB, and Goldich, SS, 1958, A contribution on the Hector, California, bentonite deposit: Econ.
Página 160 - The feldspars are important rock-forming minerals and constitute nearly 60 percent of igneous rocks. The principal potassium feldspars are orthoclase and microcline, which have the same chemical composition (KAlSi3O8) but different crystal form. The sodium-calcium feldspars, called plagioclase, form a complete series of minerals that range in all...
Página 237 - Lu) together with yttrium are called the yttrium group. The two groups are also referred to, respectively, as the "light" and "heavy" rare earths. The properties of the members of the two groups of rare earths are sufficiently distinct to cause one group to predominate over the other in most minerals where they occur, even though all or nearly all are ordinarily present (Olson and Adams, 1962).