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Analysis of operational plan for Lake Chippewa near Winter, Wisconsin
William R. Krug
1975, Open-File Report 75-487
Historical inflows into Lake Chippewa for 39 years of record were analyzed to determine the possibility of operating the flowage within a 2-foot (0.6-metre) range of stage while maintaining a minimum discharge of 57 cubic feet per second (1.6 cubic metres per second) and limiting the maximum discharge to 7,000...
Antimony deposits of Quetta-Pishin District, Quetta Division, Pakistan
F.L. Klinger, John J. Matzko, S.H. Abbas
1975, Open-File Report 75-161
Vein-type deposits of antimony ore, consisting of stibnite and quartz, are found in the hanging wall of faults cutting slate of probable Miocene age 15 miles northeast of Qila Abdullah in the Quetta-Pishin District. The ore is associated with zones of oxidized slate. Although the known deposits are small, the...
Influence of caustic and water leaching on analcime-bearing and analcime-free pyrolyzed oil shale from the Green River Formation, Piceance Creek Basin, Colorado
George A. Desborough, Wayne Mountjoy, Irving C. Frost
1975, Open-File Report 75-156
The influence of oil-shale mineral constitution on the amounts of Na2O, Al2O3, and SiO2 extractable from pyrolyzed oil shale using hot water and hot caustic solvents has been examined. Samples of oil shale from two drill cores and one composite sample from the Colony mine were split and studied by...
Notes on some experiments on the application of subtractive compensation to USGS seismic magnetic tape recording and playback systems
Jerry P. Eaton
1975, Open-File Report 75-663
The purpose of these experiments is to lay the groundwork for the implementation of subtractive compensation of the USGS seismic network tape playbacks utilizing the Develco model 6203 discriminators at a x1 playback speed. Although the Develco discriminators were designed for this application and a matching Develco compensation discriminator was...
Occurrence of pesticide residues in four streams draining different land-use areas in Pennsylvania
John F. Truhlar, Lloyd A. Reed
1975, Water-Resources Investigations Report 75-6
Samples of water, bed material, fish, and soil were collected in four small drainage basins in Pennsylvania in 1969-71 and analyzed to determine the concentrations of chlorinated-hydrocarbon insecticides. Water samples only were also analyzed for phenoxy-acid herbicides. Each basin studied represents a predominant land-use classification—forested, general farming, residential, and orchard...
Reactions of aqueous aluminum species at mineral surfaces
David Wayne Brown, John David Hem
1975, Water Supply Paper 1827-F
Aqueous aluminum solutions containing 4.5 ? 10 4 molar aluminum in 0.01 molar NaC104 were partly neutralized with NaOH to give OH:A1 mole ratios from 1.40 to 2.76. Measured amounts of montmorillonite, kaolinite, volcanic ash, or feldspathic sand were added to provide an area of inert surface. Reactions that occurred...
Water resources data for Washington, water year 1974; Part 1, Surface water records
Water Resources Division, U.S. Geological Survey
1975, Water Data Report WA-74-1
Surface-water records for the 1974 water year for Washington, including records of streamflow or reservoir storage at gaging stations, partial-record stations, and miscellaneous sites, are given in this report. The location of continuous-record gaging stations are shown in figures 1, 2. Records for a few pertinent gaging stations in bordering...
Water resources data for Washington, water year 1974; Part 2, Water quality records
Water Resources Division, U.S. Geological Survey
1975, Water Data Report WA-74-2
Water resources data for the 1974 water year for Washington include records of data for the chemical and physical characteristics of surface and ground water. Water-quality data on chemical, physical, and biological characteristics of surface and ground water were collected from designated sampling sites at predetermined intervals such as once...