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Page 6958, results 173926 - 173950

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Publication Extents

Not all publications have extents, not all extents are completely accurate
On the air-scattering of gamma rays from thick uranium sources
Arthur Y. Sakakura
1955, Trace Elements Investigations 595
Semiquantative interpretation of data from airborne radioactivity surveying requires detailed knowledge of air-scattered gamma-ray intensity at considerable air distances from natural, thick uranium sources. Based on the concept of an elementary source of infinite thickness rather than on the classical point source, semi-empirical expressions, are developed for measured gamma-radiation intensities from . the...
Geology of the northern Black Hills bentonite mining district
Sam H. Patterson
1955, Open-File Report 55-131
Extensive deposits of bentonite are present in the Cretaceous sedimentary rock strata cropping out on the northern flank of the Black Hills. These deposits have been the subject of a study by the U.S. Geological Survey as part of the program of the Department of the Interior for appraisal of...
Status of ownership of part of the lands on which phosphate-bearing beds outcrop in Utah
Emerson Cannon Willey, T. M. Cheney, H.W. Pierce, L.T. Grose
1955, Open-File Report 55-195
This report and accompanying maps summarize the status of ownership of many phosphate bearing lands in the State of Utah. Ownership categories discussedare (1) phosphate rights owned by Federal Government, (2) phosphate rights not owned by Federal Government, and (3) ownership status uncertain....