Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Results

46619 results.

Alternate formats: RIS file of the first 3000 search results  |  Download all results as CSV | TSV | Excel  |  RSS feed based on this search  |  JSON version of this page of results

Page 1722, results 43026 - 43050

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Tsunami microprocessor tide system
Harold Clark, Gary L. Heckendorn
1978, Open-File Report 78-95
A Tsunami Microprocessor Tide System was developed to replace the Advanced Tsunami Tide System. The use of microprocessor based systems will reduce manpower and hardware costs from $4,000 per advanced system to $400 per microprocessor system. In addition to the cost reduction; the capacity, capability, and flexibility of the microprocessor...
Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Afognak, Karluk, Kodiak, and Trinity Islands quadrangles, Alaska
Edward Huntington Cobb
1978, Open-File Report 79-860
These summaries of references are designed to aid in library research on metallic and nonmetallic (other than mineral fuels and construction materials) mineral occurrences in the Afognak, Karluk, Kodiak, and Trinity Islands quadrangle, Alaska. References to most reports of the Geological Survey, the U.S. Bureau of Mines, and the State...
Estimates of 7-day, 10-year minimum flows at selected stream sites in Puerto Rico
Ernest D. Cobb
1978, Open-File Report 78-583
The 7-day, 10-year minimum flow of streams is used as an index for determining the capacity of streams to receive waste effluents. This index of flow was computed from streamflow records for 31 stream sites in Puerto Rico. In addition, there was a need for the 7-day, 10-year minimum flow...
Impact of flow regulation and power plant effluents on the flow and temperature regimes of the Chattahoochee River - Atlanta to Whitesburg, Georgia
Robert E. Faye, Harvey E. Jobson, Larry F. Land
1978, Open-File Report 78-528
A calibrated and verified transient flow temperature model was used to evaluate the effects of flow regulation and powerplant loadings on the natural temperature regime of the Chattahoochee River in northeast Georgia. Estimates were made of both instantaneous and average natural temperatures in the river during an eight-day period in...
Radium and uranium data for mineral springs in eight Western States
J. Karen Felmlee, Robert Allen Cadigan
1978, Open-File Report 78-561
Data for 116 mineral springs in eight Western States show a wide range of values. Specific conductance, temperature, and pH were measured at the sites between 1975 and 1977, and samples for radium and uranium analysis were collected. Correlation and regression analyses among the five measured parameters indicate that a...
Water-quality data from a sludge disposal test site, St. Petersburg, Florida, November 1973-July 1977
Mario Fernandez
1978, Open-File Report 78-821
From November 1973 to July 1977, water samples were collected from wells to identify background water-quality conditions and to determine the effects on ground-water quality by St. Petersburg 's sludge-disposal operation (sod farm). Specific conductance and pH were determined in the field. Samples were collected for laboratory determination of selected...
Water-quality data for landfills, Hillsborough County, Florida, January 1974-October 1977
Mario Fernandez Jr., Robin R. Hallbourg
1978, Open-File Report 78-820
Periodic water-quality data were collected at four landfills in Hillsborough County from January 1974 through October 1977. Water samples were analyzed for nitrogen and phosphorous species, cations, trace metals, chloride, specific conductance, chemical oxygen demand, biological oxygen demand, and coliforms. Select ground-water samples were analyzed for herbicide and pesticide. Results...
Drainage areas of surface water bodies of the Royal and Presumpscot River basins in southwestern Maine
Derrill J. Cowing, J.L. McNelly
1978, Open-File Report 78-556-A
The report contains drainage area values for: lakes and ponds included in the Maine Informational Display Analysis System (MIDAS) File 906-Z, streams that drain an area greater than 25 mi2, dams, and hydrologic data collection sites. Supplemental information in the report includes State and Federal location systems used to identify...
Drainage areas of surface water bodies of the Saco River basin in southwestern Maine
Derrill J. Cowing, Douglas Caracappa
1978, Open-File Report 78-556-B
The report contains drainage area value for: lakes and ponds included in the Maine Informational Display Analysis System (MIDAS) File 906-Z, streams that drain an area greater than 25 mil2, dams, and hydrologic data collection sites. Supplemental information in the report includes State and Federal location systems used to identify...
Geologic and geophysical data from Osceola National Forest, Florida
James Andrew Miller
1978, Open-File Report 78-799
Ten core holes were drilled as part of a hydrologic study of Osceola National Forest. This report describes the detailed lithology of the cores taken from test drilling, illustrates gamma-ray logs obtained from the test holes and from wells near the forest, and lists the microfauna obtained and identified from...
Five-day recorder seismic system
Ed Criley, Jerry P. Eaton, Jim Ellis
1978, Open-File Report 78-266
The 10-day recorder seismic system used by the USGS since 1965 has been modified substantially to improve its dynamic range and frequency response, to decrease its power consumption and physical complexity, and to make its recordings more compatible with other NCER systems to facilitate data processing. The principal changes include:...
Agricultural land use and water quality in the upper St. Joseph River basin, Michigan
T. Ray Cummings
1978, Open-File Report 78-950
Land use in the upper St. Joseph River basin of south-central Michigan is primarily agricultural. In the 144-square-mile area, the chemical and physical characteristics of water are determined by the climate and soils, as well as by land conservation practices. Municipal waste discharges affect water quality at some locations, as...
Low-flow characteristics of small streams in proposed Public Law 566 basins
Stephen J. Field
1978, Open-File Report 78-664
Low-flow characteristics of Wisconsin streams in basins considered for work under Public Law 566 are presented in this report. The low-flow characteristics presented are the annual minimum 1-day mean flow below which the flow will fall on the average of once in 2 years (Q7,2) and the annual minimum 7-day...
Catalog of locations of U.S.G.S. instruments recording low-frequency data in California
William B. Daul, M.J.S. Johnston
1978, Open-File Report 78-358
During the past few years, the U.S. Geological Survey has installed many different types of instrumentation for the observation and detection of crustal deformation within the San Andreas fault system. In order to have an effective earthquake prediction program, it is important to have continuous data from these instruments collected...
Overburden chemistry and mineralogy at Hanging Woman Creek, Big Horn County, Montana, and recommendations for sampling at similar sites
Todd K. Hinkley, Richard John Ebens, Josephine G. Boerngen
1978, Open-File Report 78-393
Cored overburden rock of the Fort Union Formation at the Hanging Woman Creek potential coal mine site was classified in hand specimen on the basis of color and grain size into 3 types: sandstone. siltstone-plus-shale, and dark shale. The samples were analyzed for bulk chemistry and mineralogy. In general the...
Analysis of runoff from small drainage basins in Wyoming
Gordon S. Craig, James G. Rankl
1978, Water Supply Paper 2056
A flood-hydrograph study has defined the magnitude and frequency of flood volumes and flood peaks that can be expected from drainage basins smaller than 11 square miles in the plains and valley areas of Wyoming. Rainfall and runoff data, collected for 9 years on a seasonal basis (April through September),...
Hydrogeologic data for the Bear Creek subsurface-injection test site, St. Petersburg, Florida
John J. Hickey
1978, Open-File Report 78-853
Lithologic, hydraulic, geophysical, and water-quality data were collected at the Bear Creek subsurface-injection test site at St. Petersburg, FL. The data were collected to determine the feasibility of subsurface injection of storm runoff. An exploratory hole and five observation wells were constructed between October 1974 and April 1976. The lithology...
Isotopic and chemical data from carbonate cements in surface rocks over and near four Oklahoma oil fields
Mitchell E. Henry, Terrence J. Donovan
1978, Open-File Report 78-927
Carbonate cements in outcropping sandstones overlying the Doyle, Fox-Graham, Velma, and part of Wheeler oil fields, Oklahoma, were analyzed for their C13/ 12, 018/016, iron, and manganese compositions. The peculiar areal distribution of the values obtained is interpreted to be the direct result of hydrocarbon microseepage....
Risk analyses for a water-supply system; Occoquan Reservoir, Fairfax and Prince William counties, Virginia
Robert M. Hirsch
1978, Open-File Report 78-452
This report demonstrates two techniques for evaluating risks in the operation of a water-supply system. Both rely on reconstructed historical streamflow data to develop estimates of the probabilities of certain specific events occurring in the future. These techniques are applied to the Occoquan Reservoir which was experiencing an unprecedented low...