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Page 6152, results 153776 - 153800

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Botanical prospecting for uranium in the Circle Cliffs area, Garfield County, Utah
F. J. Kleinhampl, Carl Koteff
1956, Trace Elements Investigations 604
<Plant-analysis prospecting may be used to locate uranium deposits in the Circle Cliffs area where the deposits lie as much as 70 feet beneath the surface of benches developed on the Shinarump member of the Chinle formation. The Shinarump comprising the benches is thicker than 70 feet at many...
Some observations on rutherfordine
Joan R. Clark, C. L. Christ
1956, Trace Elements Investigations 584
The optical properties of rutherfordine, UO2CO3, previously determined on microscopic crystals, have been redetermined on considerably larger crystals; and the relations among the indices of refraction, the morphology, and the crystal structure have been examined. Rutherfordine is orthorhombic, biaxial positive, with α = 1.715, β = 1.730, γ =...
Behavior of Colorado Plateau uranium minerals during oxidation
Robert Minard Garrels, C. L. Christ
1956, Trace Elements Investigations 588
Uranium occurs as U(VI) and U(IV) in minerals of the Colorado Plateau ores. The number of species containing U(VI) is large, but only two U(IV) minerals are known from the Plateau: uraninite, and oxide, and coffinite, a hydroxy-silicate. These oxidize to yield U(VI) before reacting significantly with other...
A fluorimetric study of the thorium-morin system
Robert G. Milkey, Mary H. Fletcher
1956, Trace Elements Investigations 589
Thorium reacts with morin to yield a yellow complex that fluoresces when irradiated with ultraviolet light. The effect on the fluorescence of such variable as concentration of acid, alcohol, thorium, morin, and complex; time, temperature, and wavelength of exciting light are studied to determine experimental conditions yielding maximum fluorescence....
The determination of calcium in phosphate, carbonate, and silicate rocks by flame photometer
Henry Kramer
1956, Trace Elements Investigations 623
A method has been developed for the determination of calcium in phosphate, carbonate, and silicate rocks using the Beckman flame photometer, with photomultiplier attachement. The sample is dissolved in hydrofluoric, nitric, and perchloric acids, the hydrofluoric and nitric acids are expelled, a radiation buffer consisting of aluminum, magnesium, iron, sodium, potassium,...
Duttonite, a new quadrivalent vanadium oxide from the Peanut mine, Montrose County, Colorado
Mary Eleanor Thompson, Carl Houston Roach, Robert Meyrowitz
1956, Trace Elements Investigations 582
Duttonite, a new quadrivalent vanadium oxide from the Peanut mine, Montrose County, Colo., has the formula VO(OH)2. The mineral occurs as crusts and coatings of pale-brown transparent platy crystals, as one of the first oxidation products of montroseite ore. It is associated with melanovanadite and abundant crystals of hexagonal...
Uranium in carbonaceous rocks in the Townsend and Helena valleys, Montana
George E. Becraft
1956, Trace Elements Investigations 581
Uranium-bearing carbonaceous shale and lignite beds are exposed in five areas in the Townsend and Helena Valleys in western Montana. The greatest number of exposures is in an area of several square miles northeast of Winston in the Townsend Valley. The uranium-bearing beds are in the lower part...
Comparison of the pebbles of the Shinarump and Moss Back members of the Chinle formation
Howard Franklin Albee
1956, Trace Elements Memorandum 832
Lithology, color, size, sphericity, and roundness of pebbles from the Shinarurnp and Moss Back members of the Chinle formation were analyzed and compared. The difference in the quartz:quartzite:chert ratios of the pebbles, the presence of limestone and siltstone pebbles, and to a lesser degree,the difference in color of pebbles serve...
Selected annotated bibliography of the geology of uraniferous and radioactive native bituminous substances, exclusive of coals, in the United States
Harriet Nell Jones
1956, Trace Elements Investigations 536
Native bituminous substances are divided into two groups, 1) bitumens and, 2) pyrobitumens. Bitumens are composed principally of hydrocarbons substantially free from oxygenated bodies, are fusible, and are soluble in carbon disulfide. Native bitumens occur in liquid and solid forms. The native liquid bitumens include all petroleums or crude oils....
Notes on the geology of uranium
Montis Ruhl Klepper, D.G. Wyant, Donald Cave Duncan, Walter Danilchik, M.H. Staatz, Harley Barnes, V.E. McKelvey
1956, Trace Elements Investigations 529
Diatremes and craters attributed to natural explosions
Eugene Merle Shoemaker
1956, Trace Elements Memorandum 1090
Diatremes - volcanic pipes attributed to explosion - and craters have been studied to infer the ultimate causes and physical conditions attending natural explosive processes. Initial piercement of diatremes on the Navajo reservation, Arizona was probably along a fracture propagated by a high-pressure aqueous fluid. Gas rising at high velocity along...
Sub-glacial volcanic eruptions
Donald Edward White
1956, Trace Elements Memorandum 1089
The literature on sub-glacial volcanic eruptions and the related flood phenomena has been reviewed as a minor part of the larger problem of convective and conductive heat transfer from intrusive magma. (See Lovering, 1955, for a review of the extensive literature on this subject.) This summary of data on sub-glacial...