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Geology of parts of the Johnny Gulch quadrangle, Montana
Val L. Freeman
1954, Open-File Report 54-92
An area of about 35 square miles, situated about 30 miles southeast of Helena, Montana, was mapped during the summer of 1952 at a scale of l:24, 000. The area includes a part of the eastern foothills of the Elkhorn Mountains, and is underlain by sedimentary mad volcanic rocks of...
The physical behavior and geologic control of radon in mountain streams
Allen Stuart Rogers
1954, Open-File Report 54-259
Radon distribution ratio determinations in an all-water system were made. They checked very closely with those done by Kofler in 1913. The distribution of radon in stream waters and related springs was investigated in the Wasatch Mountains adjacent to Salt Lake City, Utah, and in a part of the Weber...
Iron deposits of North America, Cuba, and Puerto Rico
Carl E. Dutton
1954, Open-File Report 54-73
The accompanying report on the iron deposits of the North American continent also includes information concerning the deposits of the West Indies. The geogrphic order of desription is as follows: Alaska, Canada, United States, Mexico, Cuba, and Puerto Rico.A map of each country shows the generalized geologic pattern of the...
Current velocities in Sagadahoc Bay, Maine
C. E. Knox, W. H. Bradley
1954, Open-File Report 54-149
During the summer of 1953 continuous velocities were obtained through a tidal cycle at each of the 17 stations indicated on the accompanying map. Tidal cycle as used in this report applies to the interval of 4 to 6 hours when the tidal flat at a given station is submerged....
The Model VI transmission fluorimeter for the determination of uranium
Charles Alvin Kinser
1954, Circular 330
An improved transmission fluorimeter (Model VI) for use in the determination of uranium consists of a line-operated, low-voltage d-c supply, powering a small 3-watt ultraviolet lamp as a source of long wavelength ultraviolet radiation; a Model V phototube housing and. fluorimeter head containing the sample holder, shutter, and primary and...
Airborne radioactivity surveys for phosphate in Florida
Robert M. Moxham
1954, Circular 230
Airborne radioactivity surveys totaling 5, 600 traverse miles were made in 10 areas in Florida, which were thought to be geologically favorable for deposits of uraniferous phosphate. Abnormal radioactivity was recorded in 8 of the 10 areas surveyed. The anomalies are located in Bradford, Clay, Columbia, DeSoto, Dixie, Lake, Marion,...
Water resources of the Pittsburgh area, Pennsylvania
Max Noecker, D.W. Greenman, N.H. Beamer
1954, Circular 315
The per capita use of water in the Pittsburgh area in 1951 was 2, 000 gallons per day fgpd) or twice the per capita use in Pennsylvania as a whole. An average of about 3, 040 million gallons of water was withdrawn from the streams and from the ground each...