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Page 6316, results 157876 - 157900

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Results of exploration at the Old Leyden coal mine, Jefferson County, Colorado
A.J. Gude, F. A. McKeown
1953, Open-File Report 53-82
Six diamond core holes totaling 2, 201 feet were drilled by the. U, S. Bureau of Mines under contract to the U. S. Atomic Energy Commission at the Old Leyden coal mine, Jefferson County, Colo. The holes were spotted on the basis of geologic mapping by the U. S. Geological...
Preliminary report on the Comet area, Jefferson County, Montana
George Earle Becraft
1953, Circular 277
Several radioactivity anomalies and a few specimens of sooty pitchblende and other uranium minerals have been found on the mine dumps of formerly productive base- and precious-metal mines along the Comet-Gray Eagle shear zone in the Comet area in southwestern Montana. The shear zone is from 50 to 200 feet...
Preliminary report on uranium deposits in the Miller Hill area, Carbon County, Wyoming
J. D. Love
1953, Trace Elements Investigations 315
A sequence of radioactive rocks of Miocene (?) age, the Browns Park formation, in the Miller Hill area of southern Wyoming is more than 1,000 feet thick. The formation crops out in an area of approximately 600 square miles, and consists of a basal conglomerate, tuffs, tuffaceous limy sandstones, and...
Radioactive deposits of Nevada
T.G. Lovering
1953, Trace Elements Investigations 169
Thirty-five occurrences of radioactive rocks had been reported from Nevada prior to 1952. Twenty-five of these had been investigated by the U. S. Geological Survey and the U. S. Atomic Energy Commission. Of those investigated, uranium minerals were identified in 13; two contained a thorium mineral (monazite); the source...
Radiometric reconnaissance in the Garfield and Taylor park quadrangles, Chaffee and Gunnison counties, Colorado
M.G. Dings, Max Schafer
1953, Trace Elements Investigations 255
During the summer of 1952 most of the mines and prospects in the Garfield and Taylor Park quadrangles of west-central Colorado were examined radiometrically by the U. S. Geological Survey to determine the extent, grade, and mode of occurrence of radioactive substances. The region contains a relatively large number of rock...