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Trace elements investigations in the Sweepstakes Creek area, Koyuk district, Seward Peninsula, Alaska
H. Richard Gault, Robert F. Black, John B. Lyons
1946, Trace Elements Investigations 25
A significant content of radioactive material was recognized in a few placer concentrates from Sweepstakes and Rube Creeks in the Koyuk district of eastern Seward Peninsula, Alaska, when old collections were scanned for radioactivity in the spring of 1945. Subsequent field investigations with a Geiger-Mueller counter were made of the...
Preliminary report on methods of analysis for very small percentages of uranium
N.D. Foster, F. S. Grimaldi, R.M. Stevens
1945, Trace Elements Investigations 2
Procedures are presented in detail of two methods for the determination of very small percentages of uranium (down to 0.0028). The methods are applicable to a wide variety of materials. Notes on the methods and confirmatory experiments are also given....
Radioactivity of Pennsylvanian black shales and coals in Kansas and Oklahoma
Archibald L. Slaughter
1945, Trace Elements Investigations 18
The first field work for the purpose of determining the radioactivity of Pennsylvania black shales in Oklahoma was done in October, 1944, in the vicinity of Tulsa. Small phosphatic nodules were found to have relatively high radioactivity, particularly those in the black shale overlying the Checkerboard limestone. In May and...