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Page 1324, results 33076 - 33100

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Images of Kilauea East Rift Zone eruption, 1983-1993
Taeko Jane Takahashi, C. C. Abston, C. C. Heliker
1995, Data Series 24
This CD-ROM disc contains 475 scanned photographs from the U.S. Geological Survey Hawaii Observatory Library. The collection represents a comprehensive range of the best photographic images of volcanic phenomena for Kilauea's East Rift eruption, which continues as of September 1995. Captions of the images present information on location, geologic feature...
Water-quality assessment of the upper Snake River Basin, Idaho and western Wyoming — Environmental setting, 1980-92
Molly A. Maupin
1995, Water-Resources Investigations Report 94-4221
The 35,800-square-mile upper Snake River Basin is one of 20 areas studied as part of the National Water-Quality Assessment (NAWQA) Program of the U.S. Geological Survey. Objectives of NAWQA are to study ground- and surface-water quality, biology, and their relations to land-use activities. Major land and water uses that affect...
A computer program (MACPUMP) for interactive aquifer-test analysis
F. D. Day-Lewis, M.A. Person, Leonard F. Konikow
1995, Water-Resources Investigations Report 95-4012
This report introduces MACPUMP (Version 1.0), an aquifer-test-analysis package for use with Macintosh4 computers. The report outlines the input- data format, describes the solutions encoded in the program, explains the menu-items, and offers a tutorial illustrating the use of the program. The package reads list-directed aquifer-test data from a file,...
Water-quality assessment of the Kentucky River basin, Kentucky: Nutrients, sediments, and pesticides in streams, 1987-90
K. H. Haag, S. D. Porter
1995, Water-Resources Investigations Report 94-4227
The U.S. Geological Survey investigated the water quality of the Kentucky River Basin in Kentucky as part of the National Water Quality Assessment program. Data collected during 1987-90 were used to describe the spatial and temporal variability of nutrients, suspended sediment, and pesticides in streams. Concentrations of phosphorus were signifi-...
Water quality of storm runoff and comparison of procedures for estimating storm-runoff loads, volume, event-mean concentrations, and the mean load for a storm for selected properties and constituents for Colorado Springs, southeastern Colorado, 1992
Paul Von Guerard, W. B. Weiss
1995, Water-Resources Investigations Report 94-4194
The U.S. Environmental Protection Agency requires that municipalities that have a population of 100,000 or greater obtain National Pollutant Discharge Elimination System permits to characterize the quality of their storm runoff. In 1992, the U.S. Geological Survey, in cooperation with the Colorado Springs City Engineering Division, began a study to...
Hydrogeology, ground-water quality, and source of ground water causing water-quality changes in the Davis well field at Memphis, Tennessee
William S. Parks, June E. Mirecki, James A. Kingsbury
1995, Water-Resources Investigations Report 94-4212
An investigation was conducted by the U.S. Geological Survey from 1992 to 1994 to collect and interpret hydrogeologic and water-quality data to determine the source of ground water causing water-quality changes in water from wells screened in the Memphis aquifer in the Davis well field at Memphis, Tennessee. Water-quality changes...
Surface-water-quality assessment of the lower Kansas River Basin, Kansas and Nebraska: Suspended-sediment conditions, May 1987 through April 1990, and trends, 1963 through April 1990
Paul Robert Jordan
1995, Water-Resources Investigations Report 94-4187
Median suspended-sediment concentrations ranged from 100 to 110 milligrams per liter for 3 stations on the Kansas River and from 4 to 110 milligrams per liter for 10 stations on tributary streams during May 1987 through April 1990. For tributary stream stations upstream from large reservoirs, concen- trations in the...
Geologic map and structure sections of the Clear Lake Volcanics, Northern California
B. C. Hearn Jr., J.M. Donnelly-Nolan, F.E. Goff
1995, IMAP 2362
The Clear Lake Volcanics are located in the California Coast Ranges about 150 km north of San Francisco. This Quaternary volcanic field has erupted intermittently since 2.1 million years ago. This volcanic field is considered a high-threat volcanic system (Ewert and others, 2005) The adjacent Geysers geothermal field, largest power-producing...
Structure of the Reelfoot-Rough Creek rift system, Fluorspar area fault complex, and Hicks Dome, southern Illinois and western Kentucky; new constraints from regional seismic reflection data
C. J. Potter, M. B. Goldhaber, P.C. Heigold, James A. Drahovzal
1995, Professional Paper 1538-Q
In the winter of 1811-12, three of the largest historic earthquakes in the United States occurred near New Madrid, Mo. Seismicity continues to the present day throughout a tightly clustered pattern of epicenters centered on the bootheel of Missouri, including parts of northeastern Arkansas, northwestern Tennessee, western Kentucky, and southern...
Gazetteer of planetary nomenclature 1994
Raymond M. Batson, Joel F. Russell, editor(s)
1995, Bulletin 2129
Planetary nomenclature, like terrestrial nomenclature, is used to uniquely identify a feature on the surface of a planet or satellite so that the feature can be easily located, described, and discussed. This volume contains detailed information about all names of topographic and albedo features on planets and satellites (and some...
Ground-water levels in and pumpage from the alluvial aquifer at Louisville, Kentucky, May 1989-May 1991
Michael D. Unthank
1995, Water-Resources Investigations Report 94-4099
Water-level data have been collected in the alluvial aquifer at Louisville, Ky., by the U.S. Geological Survey since 1943. Interpretations of these data are published periodically to update the record and help local officials manage this ground-water supply. Maps and hydrographs are presented on two sheets to aid in the...
Water-resources activities of the U.S. Geological Survey in Montana, October 1993 through September 1995
C. J. Harksen (compiler), Karen S. Midtlyng
1995, Open-File Report 95-194
Water-resources programs and activities of the U.S. Geological Survey in Montana consist principally of hydrologic-data collection and investigative studies that address water-resource issues. The work is supported by direct Federal funding, by transfer of funds from other Federal agencies, and by joint funding agreements with State or local agencies. The...
Geographic information system data sets of hydrogeologic conditions in Pequea and Mill Creek watersheds, Pennsylvania: Part I — Basic data
Diana L. Dugas, Stephen J. Char, Gary E. Baumbach
1995, Open-File Report 95-113
This report describes basic data used to develop Geographic Information System data sets of bedrock geology, sinkholes and closed depressions, and spring and well locations attributed with hydro- geologic and water-quality data in the Pequea and Mill Creek watersheds, a 210-square-mile area in Lancaster and Chester Counties, Pa. The data...
Hydrologic data of two wetlands at Spring City, Tennessee, December 1991 through November 1992
Gregory C. Johnson, Lawrence M. Brede
1995, Open-File Report 95-278
Hydrologic data for two small adjacent wetlands at Spring City, Tennessee, were collected from December 1991 through November 1992. One of the wetlands was natural and the other was constructed to replace a wetland disturbed by the construction of a road embankment. Water levels were monitored in five 7-inch-diameter wells,...
Well-construction, hydrogeologic, and ground-water-quality data in the vicinity of Belvidere, Boone County, Illinois
Timothy A. Brown, P.C. Mills
1995, Open-File Report 94-515
The U.S. Geological Survey, in cooperation with the U.S. Environmental Protection Agency, is studying the hydrogeology and water quality of aquifers in the vicinity of Belvidere, Boone County, Ill. This report presents available well-construction, hydrogeologic, and ground-water-quality data compiled into a geographic information system (GIS) data base for this study....
A Lagrangian stochastic model for aerial spray transport above an oak forest
Yansen Wang, David R. Miller, Dean E. Anderson, Michael L. McManus
1995, Agricultural and Forest Meteorology (76) 277-291
An aerial spray droplets' transport model has been developed by applying recent advances in Lagrangian stochastic simulation of heavy particles. A two-dimensional Lagrangian stochastic model was adopted to simulate the spray droplet dispersion in atmospheric turbulence by adjusting the Lagrangian integral time scale along the drop trajectory. The other major...
Estimating 14C groundwater ages in a methanogenic aquifer
Ramon Aravena, Leonard I Wassenaar, Niel Plummer
1995, Water Resources Research (31) 2307-2317
This paper addresses the problem of 14C age dating of groundwaters in a confined regional aquifer affected by methanogenesis. Increasing CH4 concentrations along the groundwater flow system and 13C and 14C isotopic data for dissolved inorganic carbon, dissolved organic carbon, and CH4 clearly show the effect of methanogenesis on groundwater chemistry. Inverse reaction path modeling...
Gross-beta activity in ground water: natural sources and artifacts of sampling and laboratory analysis
Alan H. Welch, Zoltan Szabo, David L. Parkhurst, Peter C. Van Metre, Ann H. Mullin
1995, Applied Geochemistry (10) 491-503
Gross-beta activity has been used as an indicator of beta-emitting isotopes in water since at least the early 1950s. Originally designed for detection of radioactive releases from nuclear facilities and weapons tests, analysis of gross-beta activity is widely used in studies of naturally occurring radioactivity in ground water. Analyses of...
Combined use of groundwater dating, chemical, and isotopic analyses to resolve the history and fate of nitrate contamination in two agricultural watersheds, Atlantic coastal plain, Maryland
J.K. Böhlke, J. M. Denver
1995, Water Resources Research (31) 2319-2339
The history and fate of groundwater nitrate (NO3−) contamination were compared in 2 small adjacent agricultural watersheds in the Atlantic coastal plain by combined use of chronologic (CCl2F2, 3H), chemical (dissolved solids, gases), and isotopic (δ15N,δ13C, δ34S) analyses of recharging groundwaters, discharging groundwaters, and surface waters. The results demonstrate the interactive...
Geometry of sorbed arsenate on ferrihydrite and crystalline FeOOH: Re-evaluation of EXAFS results and topological factors in predicting sorbate geometry, and evidence for monodentate complexes
Glenn A. Waychunas, James A. Davis, Christopher C. Fuller
1995, Geochimica et Cosmochimica Acta (59) 3655-3661
Manceau's (1995) reinterpretation of some of our EXAFS results (Waychunas et al., 1993) has been analyzed using both old and newly collected data in an attempt to clarify the nature of proposed monodentate and edge-sharing bidentate arsenate complexes on the ferrihydrite surface. It is shown that EXAFS analysis utilizing data...
Effects of two contrasting agricultural land uses on shallow groundwater quality in the San Joaquin Valley, California; design and preliminary interpretation
N. M. Dubrovsky, Karen R. Burow, Jo Ann M. Gronberg
1995, Open-File Report 95-286
From 1992 through 1994, the San Joaquin-Tulare Basins Study team of the USGS National Water Quality Assessment program investigated the occurrence and distribution of water quality constituents in shallow groundwater underlying two areas of different agricultural land uses: almond orchards and vineyards. The study was restricted to the alluvial fans...