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Page 6733, results 168301 - 168325

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Preliminary interpretation of an aeromagnetic survey in central and southwestern Iowa
John Richard Henderson, Isidore Zietz, Walter S. White
1963, Open-File Report 63-46
The U. S. Geological Survey made a 10,000 square mile aeromagnetic survey of central and southwestern Iowa in mid-1962. This work, done in cooperation with the Iowa Geological Survey, completed magnetic coverage for the approximately 220 mile section of the "midcontinent gravity high" located in Iowa....
Ground-water contamination and legal controls in Michigan
Morris Deutsch
1963, Water Supply Paper 1691
The great importance of the fresh ground-water resources of Michigan is evident because 90 percent of the rural and about 70 percent of the total population of the State exclusive of the Detroit metropolitan area are supplied from underground sources. The water-supply and public-health problems that have been caused by...
Determination of beta activity in water
F. B. Barker, B.P. Robinson
1963, Water Supply Paper 1696-A
Many elements have one or more naturally radioactive isotopes, and several hundred other radionuclides have been produced artificially. Radioactive substances may be present in natural water as a result of geochemical processes or the release of radioactive waste and other nuclear debris to the environment. The Geological Survey has developed...
Floods on White Rock Creek above White Rock Lake at Dallas, Texas
Clarence R. Gilbert
1963, Open-File Report 63-36
The White Rock Creek watershed within the city limits of Dallas , Texas, presents problems not unique in the rapid residential and industrial development encountered by many cities throughout the United States. The advantages of full development of the existing area within a city before expanding city boundaries, are related...
Report on the operation of Barnaby, summer, 1948
Henry Faul
1963, Open-File Report 63-32
Barnaby is a self-contained truck-mounted unit for gamma-ray logging of diamond drillholes less than 200 feet deep. The radiation is detected by Geiger-Muller counter and the impulses are transmitted up a single-conductor shielded cable by a special circuit. At the surface the impulses are electronically counted and the average counting...