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Page 6068, results 151676 - 151700

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Short papers in the geologic and hydrologic sciences; Articles 1-146
Water Resources Division, U.S. Geological Survey
1961, Professional Paper 424-B
The scientific and economic results of work by the United States Geological Survey during the fiscal year 1961, the 12 months ending June 30, 1961, will be summarized in four volumes of which this is the first. This volume includes 146 short papers on a variety of subjects in the...
Ash-flow tuffs: Their origin, geologic relations, and identification
Clarence S. Ross, Robert L. Smith
1961, Professional Paper 366
Pyroclastic materials, which are interpreted as having been deposited by flowage as a suspension of ash in volcanic gas, are becoming widely recognized as major geologic episodes. These may be unconsolidated, indurated by partial welding, or welded into a compact rock. Many students are working on these materials and the...
Geologic map of part of the Beaver quadrangle, Utah
Eugene Callaghan, R. L. Parker
1961, Miscellaneous Field Studies Map 202
Tertiary volcanic and intrusive rocks underlie a large area surrounding Marysvale in southwestern Utah. Part of the Beaver quadrangle and four complete 15-minute quadrangles, Marysvale, Delano Peak, Sevier, and Monroe, have been mapped to cover the areal extent of these rocks. Mapping in the Beaver quadrangle has been restricted to...
Dacitic ash-flow sheet near Superior and Globe, Arizona
Donald W. Peterson
1961, Open-File Report 61-119
Remnants of a dacitic ash-flow sheet near Globe, Miama, and Superia, Arizona cover about 100 square miles; before erosion the area covered by the sheet was at least 400 square miles and perhaps as much as 1,500 square miles. Its maximum thickness is about 2,000 feet, its average thickness is...
Data on wells at Ladd Air Force Base, Alaska
Alvin J. Feulner
1961, Open-File Report 61-50
Ladd Air Force Base, in central Alaska, obtains its water supply from wells. A tabulation of 104 wells gives available data on depth, diameter, yield, and depth of permafrost encountered. Also given are 23 well logs and 21 chemical analyses of well waters and treated waters from Ladd Air Force...