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Page 6237, results 155901 - 155925

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Reconnaissance for radioactive deposits in eastern Alaska, 1952
Arthur Edward Nelson, Walter S. West, John J. Matzko
1954, Trace Elements Investigations 292
Reconnaissance for radioactive deposits was conducted in selected areas of eastern Alaska during 1952. Examination of copper, silver, and molybdenum occurrences and of a reported nickel prospect in the Slana-Nabesna and Chisana districts in the eastern Alaska Range revealed a maximum radioactivity of about 0.003 percent equivalent uranium. No appreciable...
Uranium deposits in the Eureka Gulch area, Central City district, Gilpin County, Colorado
P.K. Sims, F. W. Osterwald, E. W. Tooker
1954, Trace Elements Investigations 125
The Eureka Gulch area of the Central City district, Gilpin County, Colo., was mined for ores of gold, silver, copper, lead, and zinc; but there has been little mining activity in the area since World War I. Between 1951 and 1953 nine radioactive mine dumps were discovered in the area...
Geology of the Egnar quadrangle, Dolores and San Miguel counties, Colorado
Fred W. Cater Jr., A.L. Bush, Henry Bell III
1954, Trace Elements Memorandum 695
The Egnar quadrangle is one of eighteen 7 1/2-minute quadrangles covering the principal carnotite-producing area of southwestern Colorado. The geology of these quadrangles was mapped by the U.S. Geological Survey for the Atomic Energy Commission as part of a comprehensive study of carnotite deposits. The rocks exposed in the eighteen...
A spectrophotometric study of the thorium-morin mixed-color system
Mary H. Fletcher, Robert G. Milkey
1954, Trace Elements Investigations 460
Thorium reacts with morin in solutions at a pH of 2.0 to yield a single complex that has a thorium:morin ratio of 1:2. The yellow complex has a maximum absorbance at 410 m and is stable for at least 7 hours. The sensitivity of the reaction is such that as little as about...
A field method for making a quantitative estimate of altered tuff in sandstone
R. A. Cadigan
1954, Trace Elements Investigations 174
The use of benzidine to identify altered tuff in sandstone is practical for field or field laboratory studies associated with stratigraphic correlations, mineral deposit investigations, or paleogeographic interpretations. The method is based on the ability of saturated benzidine (C12H12N2) solution to produce a blue stain on montmorillonite-bearing tuff grains. The...
Stratigraphy of parts of De Soto and Hardee Counties, Florida
Maximilian H. Bergendahl
1954, Trace Elements Investigations 458
The late Cenozoic stratigraphy of part of central Florida immediately south of the land-pebble phosphate district was studies in detail to determine the southern limit of the economically important Bone Valley formation and its relations with marine rocks of late Miocene and Pliocene age in south-central Florida. In addition a...
Results of core drilling for uranium-bearing carbonaceous shale and lignite in the Goose Creek district, Cassia County, Idaho
William J. Mapel, William J. Hail Jr.
1954, Trace Elements Investigations 438
Thirteen core holes, totaling 2,023 feet, were drilled during the fall of 1953 to explore the grade and extent of uranium-bearing beds of carbonaceous shale and lignite in the east-central part of the Goose Creek district, Cassia County, Idaho. The beds tested are interbedded with volcanic ash, bentonite, greenish-gray shale,...
Uranium in the Mayoworth area, Johnson County, Wyoming - a preliminary report
J. D. Love
1954, Trace Elements Investigations 436
The uranium mineral, metatyuyamunite, occurs in the basal limestone of the Sundance formation of late Jurassic age along the east flank of the Bighorn Mountains, about 2 miles southwest of the abandoned Mayoworth post office. This occurrence is of particular interest because it is the first uranium mineralization reported from...
Wall-rock control of cortain pitchblende deposits in Golden Gate Canyon, Jefferson County, Colorado
John W. Adams, Frederick Stugard Jr.
1954, Trace Elements Investigations 430
Carbonate veins cutting pre-Cambrian metamorphic rocks in Golden Gate Canyon contain pitchblende and base-metal sulfides. The veins occupy extensive faults of Laramide age but normally contain pitchblende only where the cut hornblende gneiss. At the Union Pacific prospect, which was studied in detail, pitchblende, hermatite, and some ankerite formed in...
Progress report on the Happy Jack mine, Which Canyon area, San Juan county, Utah
Albert F. Trites Jr., Randall T. Chew III
1954, Trace Elements Memorandum 645
The Happy Jack mine is in the White Canyon area, San Juan county, Utah. Production is from high-grade uranium deposits in the Shinarump conglomerate of the Triassic age. In this area the Shinarump beds range from about 16 to 40 feet in thickness and the lower part of...
Reconnaissance for uranium in New Mexico in 1953
Roy L. Griggs
1954, Trace Elements Investigations 419
In the fall of 1953 a reconnaissance search for uranium was made in the Datil area, west-central New Mexico, and in the Cerrillos, Glorieta, and Tecolote districts and the Las Vegas and Colfax Sill areas in north-central and northeastern New Mexico. Traces of radioactive materials were detected at many places...
Uranium occurrences in Bucks County, Pennsylvania, and Hunterdon County, New Jersey
F. A. McKeown, P.W. Choquette, R. C. Baker
1954, Trace Elements Investigations 414
Eleven occurrences of uraniferous argillite in the Lockatong lithofacies and five occurrences of uraniferous sandstone in the Stockton lithofacies, both of Triassic age, are known in Buck County, Pa. and Hunterdon County, N.J. Most of the occurrences were discovered by the Geological Survey, though prospectors found several. The Delaware quarry, Bucks...