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Ground water in the Redding Basin, Shasta and Tehama counties, California
M.J. Pierce
1983, Water-Resources Investigations Report 83-4052
An appraisal of ground-water conditions in the Redding Basin was made by the U.S. Geological Survey and the California Department of Water Resources during 1979 and 1980. The basin covers about 510 square miles in the northern part of the Central Valley of California. Ground water in the basin is...
Quality-assurance data for routine water analysis in the laboratories of the US Geological Survey; 1981 annual report
D.B. Peart, Nancy Thomas
1983, Water-Resources Investigations Report 83-4090
The U.S. Geological Survey maintains a quality-assurance program based on the analysis of reference samples for its two water-analysis laboratories located in Atlanta, Georgia and Denver, Colorado. Reference containing inorganic constituents are prepared at the U.S. Geological Survey 's Ocala, Florida, office and disguised as routine samples, and sent daily...
FFTFIL; a filtering program based on two-dimensional Fourier analysis of geophysical data
T.G. Hildenbrand
1983, Open-File Report 83-237
The filtering program 'fftfil' performs a variety of operations commonly required in geophysical studies of gravity, magnetic, and terrain data. Filtering operations are carried out in the wave number domain where the Fourier coefficients of the input data are multiplied by the response of the selected filter. Input grids can...
Petroleum geology and resources of the Volga-Ural province, U.S.S.R.
James A. Peterson, James W. Clarke
1983, Circular 885
The Volga-Ural petroleum province is, in general, coincident with the Volga-Ural regional high, a broad upwarp of the east-central part of the Russian (East European) Platform. The central part of the province is occupied by the Tatar arch, which contains the major share of the oilfields of the province. The...
Appraisal of water-quality conditions, lower Black River, Windsor County, Vermont
K. W. Toppin
1983, Water-Resources Investigations Report 82-4116
Six hydroelectric power dams are planned along a 22-mile reach of the lower Black River in southeastern Windsor County, Vermont. Data were collected at 10 stations, during water years 1977-81, to appraise quality conditions before construction. Average specific conductance of Black River is 101 micromhos indicating low concentrations of dissolved...
Compilation of revised ages of volcanic units in the San Juan Mountains, Colorado; recalculated K-Ar age determinations using IUGS constants
Ken Hon, Harald H. Mehnert
1983, Open-File Report 83-668
Previously published K-Ar age determinations for the middle to late Tertiary San Juan volcanic field have been recalculated using the 1977 IUGS constants. Revised ages, original analytical data, and brief sample descriptions are presented in table 2 for all available dated volcanic units. A generalized stratigraphic column is also included...
Flood estimates for ungaged streams in Glacier and Yellowstone National Parks, Montana
R. J. Omang, Charles Parrett, J. A. Hull
1983, Water-Resources Investigations Report 83-4147
Estimates of 100-year discharges were made at 59 sites in Glacier National Park and 21 sites in Yellowstone National Park to assist the National Park Services in quantifying stream inflow and outflow in the Parks. The estimates were made using regression equations previously developed for Montana. The resulting 100-year discharges...
Hydrologic and geologic aspects of waste management and disposal; a bibliography of publications by U.S. Geological Survey authors, 1950-81
Elinor H. Handman
1983, Circular 907
References to more than 550 reports, articles, and maps are listed alphabetically by author and are indexed by subject. The subject index includes geographic-area terms. Citations from 69 series are included; series are listed separately. The publications listed report the results of U.S. Geological Survey research and field projects throughout...
Water quality data for selected streams tributary to the tidal Potomac River and Estuary, Maryland and Virginia, 1979-81 water years
R.E. Hickman
1983, Open-File Report 83-873
Observations of the physical, chemical, and biological water quality of five streams draining to the tidal Potomac River and Estuary during the 1979-81 water years are tabulated. The streams sampled are Rock Creek, the Northwest and Northeast Branches of the Anacostia River, the Occoquan River, and St. Clements Creek. Samples,...
Hydrogeology of parts of the Central Platte and Lower Loup Natural Resources Districts, Nebraska
J. M. Peckenpaugh, J. T. Dugan
1983, Water-Resources Investigations Report 83-4219
Water-level declines of at least 15 feet have occurred in this heavily irrigated area of central Nebraska since the 1930's, and potential for additonal declines is high. To test the effects of additional irrigation development on water levels and streamflow , computer programs were developed that represent the surface-water system,...