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Page 5452, results 136276 - 136300

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Uranium in phosphate rock
James Bachelder Cathcart
1975, Open-File Report 75-321
Uranium is a trace constituent of all apatites in amounts that typically range from <0.001 to 0.003 percent for guano and guano-derived deposits; from 0.001 to 0.010 percent for igneous apatites; from 0.005 to 0.030 percent for marine phosphorites. Uranium may be enriched to as much as 0.05 percent in...
Preliminary report on the use of LANDSAT-1 (ERTS-1) reflectance data in locating alteration zones associated with uranium mineralization near Cameron, Arizona
Charles S. Spirakis, Christopher D. Condit
1975, Open-File Report 75-416
LANDSAT-I (ERTS-I) multispectral reflectance data were used to enhance the detection of alteration around uranium deposits near Cameron, Ariz. The technique involved stretching and ratioing computer-enhanced data from which electronic noise and atmospheric haze had been removed. Using present techniques, the work proves that LANDSAT-I data are useful in detecting...
Sediment characteristics of streams in the eastern Piedmont and western Coastal Plain regions of North Carolina
Clyde E. Simmons
1975, Open-File Report 75-291
The sediment-transport characteristics of streams were determined in a 6,000-square-mile (15,500-square-kilometre) area of the Coastal Plain and Piedmont regions of eastern North Carolina during 1969-73. The study covered all or parts of 21 counties and included data for 28 sediment-sampling stations located in parts of 4 major river basins, the...
Abundances of uranium, thorium, and potassium for some Australian crystalline rocks
Carl Maurice Bunker, C. A. Bush, Robert J. Munroe, J.H. Sass
1975, Open-File Report 75-393
This report contains a tabulation of the basic radioelement and radiogenic heat data obtained during an Australian National University (ANU) - United States Geological Survey (USGS) heat-flow project, directed jointly by J. C. Jaeger (ANU) and J. H. Sass (USGS). Most samples were collected during the periods June through September,...
Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Bendeleben Quadrangle, Alaska
Edward Huntington Cobb
1975, Open-File Report 75-429
This summary of references is designed to aid in library research on metallic and nonmetallic (other than mineral fuels and construction materials) mineral occurrences in the Bendeleben quadrangle, Alaska. All references to published and open-filed reports of the Geological Survey, to most published and open-filed reports of the U.S. Bureau...
Sources of emergency water supplies in San Mateo County, California
P.R. Wood
1975, Open-File Report 75-43
San Mateo County has several densely populated urban areas that get most of their water supplies from surface-water sources that could by damaged by a major earthquake or other general disaster. In the event of such a disaster, limited supplies of potable water may be obtained from selected wells, springs,...
Relation of precipitation to annual ground-water recharge in the Edwards Aquifer, San Antonio area, Texas
Celso Puente
1975, Open-File Report 75-298
Annual recharge data obtained from historical records and mean-annual precipitation data computed from rainfall records were used to develop simple linear-regression equations for use in estimating annual recharge for seven subbasins in the San Antonio area. Adjustments were made to the precipitation parameter to account for the effects of year-end...