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

184563 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 4864, results 121576 - 121600

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Geological and geochemical data for seamounts and associated ferromanganese crusts in the Ratak Chain, Marshall Islands
W. C. Schwab, J.R. Hein, A. S. Davis, L.A. Morgenson, C.L. Daniel, J.A. Haggerty
1986, Open-File Report 86-338
In 1984, the U.S. Geological Survey (USGS) conducted a reconnaissance cruise L9-84-CP aboard the R/V S.P. LEE along the northern Ratak Ridge, Marshall Islands (Fig. 1). Preliminary geochemical results from the cruise show that ferromanganese crusts (Mn crusts) on the submarine slopes of seamounts, and islands may have potential for...
Estimated monthly percentile discharges at ungaged sites in the upper Yellowstone River Basin in Montana
Charles Parrett, J. A. Hull
1986, Water-Resources Investigations Report 86-4009
Once-monthly streamflow measurements were used to estimate selected percentile discharges on flow-duration curves of monthly mean discharge for 40 ungaged stream sites in the upper Yellowstone River basin in Montana. The estimation technique was a modification of the concurrent-discharge method previously described and used by H.C. Riggs to estimate annual...
The Conterminous United States Mineral Appraisal Program; background information to accompany folio of geologic, geochemical, geophysical, and mineral resources maps of the Medford 1 degree x 2 degrees Quadrangle, Oregon and California
James G. Smith, R.J. Blakely, M. G. Johnson, N.J. Page, J.A. Peterson, D.A. Singer, C. L. Whittington
1986, Circular 976
The Medford 1 ? by 2 ? quadrangle in southern Oregon and northern California was studied by an interdisciplinary research team to appraise its mineral resources. The appraisal is based on geological, geochemical, and geophysical field and laboratory investigations, the results of which are published as a folio of maps,...
Organic compounds in ground water near a sanitary landfill in the Town of Brookhaven, Long Island, New York
K.A. Pearsall, E. J. Wexler
1986, Water-Resources Investigations Report 85-4218
Landfill leachate and groundwater near the Brookhaven landfill site were analyzed for volatile, acid-extractable, and base/neutral-extractable organic compounds classified by EPA as ' priority pollutants, ' and for dissolved organic carbon (DOC) and inorganic constituents. Thirteen priority pollutants were detected, including benzene, chlorobenzene, ethyl benzene, and naphthalene. The most commonly...
The relation of ground-water quality to housing density, Cape Cod, Massachusetts
J.H. Persky
1986, Water-Resources Investigations Report 86-4093
Correlation of median nitrate concentration in groundwater with housing density for 18 sample areas on Cape Cod yields a Pearson correlation coefficient of 0.802, which is significant at the 95 % confidence level. In five of nine sample areas where housing density is greater than one unit/acre, nitrate concentrations exceed...
Simulation of rain floods on Willow Creek, Valley County, Montana
Charles Parrett
1986, Water-Resources Investigations Report 86-4341
The Hydrologic Engineering Center-1 rainfall-runoff simulation model was used to assess the effects of a system of reservoirs and waterspreaders in the 550-sq mi Willow Creek Basin in northeastern Montana. For simulation purposes, the basin was subdivided into 100 subbasins containing 84 reservoirs and 14 waterspreaders. Precipitation input to the...
Direction of ground-water flow and ground-water quality near a landfill in Falmouth, Massachusetts
J.H. Persky
1986, Water-Resources Investigations Report 85-4188
A landfill in Falmouth, Massachusetts, is upgradient of a pond used for municipal water supply, but analysis of groundwater flow directions and groundwater quality indicates that leachate from the landfill does not threaten the municipal water supply. A network of water table observation wells was established, and water table altitudes...
Flood-depth frequency relations for streams in Alabama
D.A. Olin
1986, Water-Resources Investigations Report 85-4296
Equations were defined for estimating the depth of water for floods having recurrence intervals of 2, 5, 10, 25, 50, 100, and 200 years on rural and urban streams in Alabama. Multiple regression analyses were made using the ' maximum RSQUARE improvement ' procedures. The dependent variable was the flood...
Temperature of ground water at Philadelphia, Pennsylvania, 1979- 1981
Gary N. Paulachok
1986, Water-Resources Investigations Report 84-4189
Anthropogenic heat production has undoubtedly caused increased ground-water temperatures in many parts of Philadelphia, Pennsylvania, as shown by temperatures of 98 samples and logs of 40 wells measured during 1979-81. Most sample temperatures were higher than 12.6 degrees Celsius (the local mean annual air temperature), and many logs depict cooling...