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Page 6253, results 156301 - 156325

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Reconnaissance for radioactive deposits in the lower Yukon-Kuskokwim Highlands region, Alaska
M.G. White, P.L. Killeen
1953, Circular 255
Investigations in 1947 in the Lower Yukon-Kuskokwim region, Alaska found that previously reported radioactivity in the vicinity of Flat is due to uraniferous zircon, an accessory mineral in monzonite. The monzonite intrudes mafic igneous and Upper Cretaceous sedimentary rocks. The maximum equivalent-uranium content of the zircon is 0.14 percent, and...
An occurrence of autunite, Lawrence County, South Dakota
Rollin C. Vickers
1953, Circular 286
In July 1952 an occurrence of autunite was found in the northern part of the Black Hills, South Dakota, during a reconnaissance for radioactive deposits. The autunite occurs as fracture coatings and disseminations in siltstone of the Deadwood formation of Cambrian age and is concentrated mainly in the lower 2...
Coal resources of Indiana
Frank Darwyn Spencer
1953, Circular 266
The Indiana coal field forms the eastern edge of the eastern interior coal basin, which is near some of the most densely populated and highly productive manufacturing areas of the United States. (See fig. 1. ) For this reason Indiana coal reserves are an important State and National asset. In...
Stratigraphic sections of the Phosphoria formation in Idaho, 1949, part 1
R.P. Sheldon, M.A. Warner, M.E. Thompson, H.W. Peirce
1953, Circular 304
The U. S. Geological Survey has recently measured and sampled the Phosphoria formation at many localities in Idaho and other western states. These data. will not be fully synthesized and analyzed for several years, but segments of the data, accompanied by little or no interpretation, are published as preliminary reports as...
Reconnaissance for radioactive deposits in the vicinity of Teller and Cape Nome, Seward Peninsula, Alaska, 1946-47
Max Gregg White, W.S. West, J.J. Matzko
1953, Circular 244
Placer-mining areas and bedrock exposures near Teller on the Seward Peninsula, Alaska, were investigated in June and July, 1946, for possible sources of radioactive materials. The areas that were investigated are: Dese Creek, southeast of Teller; Bluestone River basin, south and southeast of Teller; Sunset Creek and other small streams...
Uranium occurrences in the Golden Gate Canyon and Ralston Creek areas, Jefferson County, Colorado
John Wagstaff Adams, A. J. Gude III, E.P. Beroni
1953, Circular 320
Pitchblende, associated with base-metal sulfides, has been found at nine localities in the northern part of Jefferson County, Colo., in shear zones that cut pre-Cambrian metamorphic and igneous rocks, chiefly hornblende gneiss, biotite schist, and granite pegmatite. The known deposits are in the vicinity of Halston Creek and Golden Gate...
Exploratory drilling program of the U.S. Geological Survey for evidences of zinc-lead mineralization in Iowa and Wisconsin, 1950-51
Allen Francis Agnew, Arthur E. Flint, John W. Allingham
1953, Circular 231
The Upper Mississippi Valley zinc-lead district covers 2, 500 square miles of Wisconsin, Illinois, and Iowa. It is one of the oldest mining districts in the United States, as lead mining by settlers began in 1788. Zinc has been mined since 1859, and the present production is more than ten...