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Page 5426, results 135626 - 135650

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Not all publications have extents, not all extents are completely accurate
Environmental tritium in the Edwards Aquifer, central Texas 1963-71
Frederick Joseph Pearson, Paul L. Rettman, T.A. Wyerman
1975, Open-File Report 74-362
Tritium concentrations of samples from 50 wells and springs in the Edwards aquifer in the San Antonio area of Texas have been analysed. Tritium now in the aquifer is partly natural cosmic ray produced tritium, but most is tritium produced by atmospheric thermonuclear tests in the 1950's and early 1960's....
Water availability and geology of Hale County, Alabama
Marvin E. Davis, Thomas H. Sanford Jr., Patrick O. Jefferson
1975, Open-File Report 75-452
Geologic units that underlie and crop out in Hale County include the Tuscaloosa Group, Eutaw Formation, and Selma Group of Late Cretaceous age, and terrace deposits and alluvium of Quaternary age. The Cretaceous units dip southwest about 35 feet per mile and strike northwest. They consist chiefly of deposits of...
Ground water in the middle Arkansas River basin, Kansas and Oklahoma
Stuart Wesley Fader, Robert B. Morton
1975, Open-File Report 75-367
Ground water in the Middle Arkansas River basin occurs in consolidated rocks and unconsolidated deposits. Wells for domestic and stock supply generally can be drilled successfully in consolidated rocks. Wells for large-scale municipal, industrial, and irrigation supplies generally are successful in areas underlain by saturated unconsolidated deposits of sand and...
Water availability and geology of Sumter County, Alabama
Marvin E. Davis, Thomas H. Sanford, Patrick O. Jefferson
1975, Open-File Report 75-459
Geologic units that crop out in Sumter County include the Selma Group of Late Cretaceous age; the Midway and Wilcox Groups of Tertiary Age; and terrace deposits and alluvium of Quaternary age. The Tuscaloosa Group, consisting of the Coker and Gordo Formations, and Eutaw Formation of Late Cretaceous age underlie...
Seismic refraction records from a survey in the Gulf of Alaska
Kenneth C. Core, Robert E. Mattick, Kenneth C. Bayer
1975, Open-File Report 75-283
In September, 1974, the U.S. Geological Survey conducted a seismic refraction survey between Icy Bay and Kayak Island in the Gulf of Alaska to measure the seismic velocity and thickness of the sedimentary section. The purpose of this report is to make the original field records publicly available. Five lines...
Gravity and magnetic studies of The Geysers-Clear Lake geothermal region, California
William F. Isherwood
1975, Open-File Report 75-368
In order to explore for economic steam reservoirs, it is important to know the complete, three-dimensional geology which governs such a system. The Geysers-Clear Lake region California (figure 1), has the world's largest production of commercial power from a dry steam geothermal reservoir. This paper describes gravity and magnetic field...
Reconnaissance engineering geology of the Ketchikan area, Alaska, with emphasis on evaluation of earthquake and other geologic hazards
Richard W. Lemke
1975, Open-File Report 75-250
The Alaska earthquake of March 27, 1964, dramatically emphasized the need for engineering geologic studies of urban areas in seismically active regions. A reconnaissance study of the Ketchikan area in southeastern Alaska is part of a program to evaluate earthquake and other geologic hazards in most of the larger Alaska...