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184743 results.

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Page 6819, results 170451 - 170475

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Publication Extents

Not all publications have extents, not all extents are completely accurate
The challenge of water management
Luna Bergere Leopold
1960, Circular 414-B
In a sandy, riverside location in Wisconsin my family has a farm, once abandoned by a previous owner because it would not produce much corn. By the time we bought it for a pittance, only a few remnants of white pine remained from the magnificent stands made famous by Paul...
Occurrence of strontium in natural water
M. W. Skougstad, C. Albert Horr
1960, Circular 420
The regions where the stable strontium content of surface waters is relatively low (less than 0.50 ppm) include the Pacific Northwest, Northeastern United States, and the Central Lowlands, Particularly the Lower Mississippi basin and the Western Gulf Coast area. Moderate concentrations of strontium (0.50 to 1.5 ppm) are found in...
Pumice and pozzolan deposits in the Lesser Antilles
Edwin Butt Eckel
1960, Open-File Report 60-48
Early in 1959 the International Cooperation Administration requested the U. S. Geological Survey to assign a geologist to a reconnaissance study of the pumice and pozzolan deposits of the Lesser Antilles. As a result, I made brief field examinations of all the reported deposits during the period May 25 -...
Zones and zonal variations in welded ash flows
R. L. Smith
1960, Professional Paper 354-F
Welded tuffs are recognized as special parts of ash flows, other pyroclastic flows, or, more rarely, air-fall deposits. Ash flows may be emplaced at any temperature below a maximum eruption temperature. Those emplaced above a minimum welding temperature may show any and all degrees of welding and crystallization. ...