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Page 6183, results 154551 - 154575

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Machine for preparing phosphors for the fluorimetric determination of uranium
R.E. Stevens, W. H. Wood, K. G. Goetz, C. A. Horr
1956, Trace Elements Investigations 578
The time saved by use of a machine for preparing many phosphors at one time increases the rate of productivity of the fluorimetric method for determining uranium. The machine prepares 18 phosphors at a time and eliminates the tedious and time-consuming step of preparing them by hand, while improving the precision...
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....
An inferred relationship between some uranium deposits and calcium carbonate cement in southern Black Hills, South Dakota
Garland B. Gott
1956, Trace Elements Memorandum 1000
Evidence resulting from geologic mapping in the southern Black Hills indicates that the areas marginal to some of the larger carbonate-cemented sandstones constitute favorable geochemical environments for the localization of uranium deposits. To determine whether these favorable environments are predictable a limited experimental core-drilling program was carried out. An extensive...