Shapefile of the Elevation of the Bedrock Surface Beneath the Rocky Flats Alluvial Fan, Boulder and Jefferson Counties, Colorado
Daniel H. Knepper
2003, Open-File Report 2003-443
The Rocky Flats alluvial fan is a large early Pleistocene gravel deposit at the mouth of Coal Creek Canyon along the eastern flank of the Colorado Front Range in Jefferson and Boulder Counties, Colorado. Elevations of the bedrock surface beneath the alluvial fan gravels have been compiled at selected...
Alaska resource data file: Juneau quadrangle
John C. Barnett, Lance D. Miller
2003, Open-File Report 2003-456
Descriptions of the mineral occurrences shown on the accompanying figure follow. See U.S. Geological Survey (1996) for a description of the information content of each field in the records. The data presented here are maintained as part of a statewide database on mines, prospects and mineral occurrences throughout Alaska....
Alaska resource data file: Talkeetna Mountains quadrangle
Robert K. Rogers, Jeanine M. Schmidt
2003, Open-File Report 2003-457
Descriptions of the mineral occurrences shown on the accompanying figure follow. See U.S. Geological Survey (1996) for a description of the information content of each field in the records. The data presented here are maintained as part of a statewide database on mines, prospects and mineral occurrences throughout Alaska....
Selected hydrogeologic datasets for the Evangeline Aquifer, Texas
Eric W. Strom, Natalie A. Houston, C. Amanda Garcia
2003, Open-File Report 2003-298
No abstract available....
Chemical analyses of ground and surface waters, Ester Dome, central Alaska, 2000-2001
P. L. Verplanck, S. H. Mueller, E. K. Youcha, R.J. Goldfarb, R. F. Sanzolone, R. Blaine McCleskey, Paul H. Briggs, M. Roller, M. Adams, D. Kirk Nordstrom
2003, Open-File Report 2003-244
Water analyses are reported for ground and surface waters collected at 33 sites on and near Ester Dome, Fairbanks area, central Alaska during 2000-2001. This interdisciplinary study focused on documenting the temporal and spatial chemical variations in arsenic concentrations to elucidate the processes that lead to elevated arsenic concentrations in...
MODFLOW-2000, the U.S. Geological Survey Modular Ground-Water Model--Documentation of the SEAWAT-2000 Version with the Variable-Density Flow Process (VDF) and the Integrated MT3DMS Transport Process (IMT)
Christian D. Langevin, W. Barclay Shoemaker, Weixing Guo
2003, Open-File Report 2003-426
SEAWAT-2000 is the latest release of the SEAWAT computer program for simulation of three-dimensional, variable-density, transient ground-water flow in porous media. SEAWAT-2000 was designed by combining a modified version of MODFLOW-2000 and MT3DMS into a single computer program. The code was developed using the MODFLOW-2000 concept of a process, which...
Occurrence of pesticides in ground water of the North Platte Natural Resources District, Nebraska, 2002
Gregory V. Steele, James C. Cannia
2003, Fact Sheet 114-03
Geologic map of the Horse Mountain Quadrangle, Garfield County, Colorado
W. J. Perry, R. R. Shroba, R. B. Scott, Florian Maldonado
2003, Miscellaneous Field Studies Map 2415
New 1:24,000-scale geologic map of the Horse Mountain 7.5' quadrangle, in support of the USGS Western Colorado I-70 Corridor Cooperative Geologic Mapping Project, summarizes available geologic information for the quadrangle. It provides new interpretations of the stratigraphy, structure, and geologic hazards in the area of the southwest flank of the...
Evaluation of Streamflow Requirements for Habitat Protection by Comparison to Streamflow Characteristics at Index Streamflow-Gaging Stations in Southern New England
David S. Armstrong, Gene W. Parker, Todd A. Richards
2003, Water-Resources Investigations Report 2003-4332
Streamflow characteristics and methods for determining streamflow requirements for habitat protection were investigated at 23 active index streamflow-gaging stations in southern New England. Fish communities sampled near index streamflow-gaging stations in Massachusetts have a high percentage of fish that require flowing-water habitats for some or all of their life cycle....
Archive of digital boomer seismic reflection data collected during USGS cruises 94GFP01, 95GFP01, 96GFP01, 97GFP01, and 98GFP02 in Lakes Pontchartrain, Borgne, and Maurepas, Louisiana, 1994-1998
Karynna Calderon, Shawn V. Dadisman, Jack L. Kindinger, S. Jeffress Williams, James G. Flocks, Shea Penland, Dana S. Wiese
2003, Open-File Report 2003-497
The U.S. Geological Survey, in cooperation with the University of New Orleans, the Lake Pontchartrain Basin Foundation, the National Oceanic and Atmospheric Administration, the Coalition to Restore Coastal Louisiana, the U.S. Army Corps of Engineers, the Environmental Protection Agency, and the University of Georgia, conducted five geophysical surveys of Lakes...
Lithologic coring in the lower Anacostia tidal watershed, Washington, D.C., July 2002
Frederick J. Tenbus
2003, Open-File Report 2003-318
Little is known about the volumetric flux of ground water to the lower tidal Anacostia River, or whether ground-water flow is an important component of the contaminant load in this part of the Anacostia River. The watershed is in the eastern part of Washington, D.C., and has been subjected to...
Fish distribution and valley segment type data from Ohio Aquatic Gap Analysis Project (GAP)
S. Alex Covert, Stephanie P. Kula
2003, Open-File Report 2003-194
Selected hydrogeologic datasets for the Jasper Aquifer, Texas
Eric W. Strom, Natalie A. Houston, C. Amanda Garcia
2003, Open-File Report 2003-299
No abstract available....
Mantle and Crustal Sources of Carbon, Nitrogen, and Noble gases in Cascade-Range and Aleutian-Arc Volcanic gases
Robert B. Symonds, Robert J. Poreda, William C. Evans, Cathy J. Janik, Beatrice E. Ritchie
2003, Open-File Report 2003-436
Here we report anhydrous chemical (CO2, H2S, N2, H2, CH4, O2, Ar, He, Ne) and isotopic (3He/4He, 40Ar/36Ar, δ13C of CO2, δ13C of CH4, δ15N) compositions of virtually airfree gas samples collected between 1994 and 1998 from 12 quiescent but potentially restless volcanoes in the Cascade Range and Aleutian Arc...
Debris-flow hazards caused by hydrologic events at Mount Rainier, Washington
James W. Vallance, Michelle L. Cunico, Steve P. Schilling
2003, Open-File Report 2003-368
At 4393 m, ice-clad Mount Rainier has great potential for debris flows owing to its precipitous slopes and incised steep valleys, the large volume of water stored in its glaciers, and a mantle of loose debris on its slopes. In the past 10,000 years, more than sixty Holocene lahars have...
Effects of channel changes on geomorphic and hydraulic characteristics of the Canadian River near Raton, New Mexico, 1965-2000
Anne Marie Matherne, Nathan C. Myers
2003, Water-Resources Investigations Report 2003-4221
Hydrological, chemical, and biological characteristics of a prairie pothole wetland complex under highly variable climate conditions: The Cottonwood Lake area, east-central North Dakota
Thomas C. Winter, Donald O. Rosenberry, James W. LaBaugh, George A. Swanson, Ned H. Jr. Euliss, Bruce A. Hanson, David M. Mushet, Karen A. Poiani, W. Carter Johnson
2003, Professional Paper 1675
Geologic deposits in the Cottonwood Lake area consist largely of silty, clayey glacial till that contains numerous fractures and small, randomly distributed sand and gravel deposits. The sand deposits can have a substantial effect on groundwater flow between wetlands in the area and can cause some to drain while others...
Water quality of selected rivers in the New England Coastal Basins in Maine, Massachusetts, New Hampshire, and Rhode Island, 1998-2000
Kimberly W. Campo, Sarah M. Flanagan, Keith W. Robinson
2003, Water-Resources Investigations Report 2003-4210
Nine rivers were monitored routinely for a variety of field conditions, dissolved ions, and nutrients during 1998-2000 as part of the New England Coastal Basins (NECB) study of the U.S. Geological Survey (USGS) National Water-Quality Assessment (NAWQA) Program. The nine rivers, located primarily in the Boston metropolitan area, represented a...
Coastal erosion and wetland change in Louisiana: selected USGS products
S. Jeffress Williams, Jamey M. Reid, VeeAnn A. Cross, Christopher F. Polloni
2003, Data Series 79
This Digital Data Series (DDS) report is primarily a selection of USGS science products that were previously published as paper atlases and maps but are no longer available in their original form. We have made an attempt to preserve the paper atlases by having them scanned in an efficient compressed...
Preliminary Mineralogic and Stable Isotope Studies of Altered Summit and Flank Rocks and Osceola Mudflow Deposits on Mount Rainier, Washington
Robert O. Rye, George N. Breit, David R. Zimbelman
2003, Open-File Report 2003-464
About 5600 years ago part of Mount Rainier?s edifice collapsed with the resultant Osceola Mudflow traveling more than 120 km and covering an area of at least 505 km2. Mineralogic and stable isotope studies were conducted on altered rocks from outcrops near the summit and east flank of the volcano...
An Organic Geochemical Assessment of CO2-Coal Interactions During Sequestration
Jonathan J. Kolak, Robert A. Burruss
2003, Open-File Report 2003-453
Three well-characterized coal samples of varying rank were extracted with supercritical CO2 to determine the amount of polycyclic aromatic hydrocarbons (PAHs) that could be mobilized during simulated CO2 injection/sequestration in deep coal beds. The supercritical CO2 extractions were conducted at 40?C and 100 bars, roughly corresponding to a depth of...
Estimating the susceptibility of surface water in Texas to nonpoint-source contamination by use of logistic regression modeling
William A. Battaglin, Randy L. Ulery, Thomas Winterstein, Toby Welborn
2003, Water-Resources Investigations Report 2003-4205
In the State of Texas, surface water (streams, canals, and reservoirs) and ground water are used as sources of public water supply. Surface-water sources of public water supply are susceptible to contamination from point and nonpoint sources. To help protect sources of drinking water and to aid water managers in...
Baseline assessment of fish communities, benthic macroinvertebrate communities, and stream habitat and land use, Big Thicket National Preserve, Texas, 1999-2001
J. Bruce Moring
2003, Water-Resources Investigations Report 2003-4270
The Big Thicket National Preserve comprises 39,300 hectares in the form of nine preserve units connected by four stream corridor units (with two more corridor units proposed) distributed over the lower Neches and Trinity River Basins of southeastern Texas. Fish and benthic macroinvertebrate data were collected at 15 stream sites...
Assessment of selected inorganic constituents in streams in the Central Arizona Basins study area, Arizona and northern Mexico, through 1998
David W. Anning
2003, Water-Resources Investigations Report 2003-4063
Stream properties and water-chemistry constituent concentrations from data collected by the National Water-Quality Assessment and other U.S. Geological Survey water-quality programs were analyzed to (1) assess water quality, (2) determine natural and human factors affecting water quality, and (3) compute stream loads for the surface-water resources in the Central Arizona...
Uncertainty and inferred reserve estimates — The 1995 National Assessment
Emil D. Attanasi, Timothy C. Coburn
2003, Bulletin 2172-G
Inferred reserves are expected additions to proved reserves of oil and gas fields discovered as of a certain date. Inferred reserves accounted for 65 percent of the total oil and 34 percent of the total gas assessed in the U.S. Geological Survey's 1995 National Assessment of oil and gas in...
