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Page 2821, results 70501 - 70525

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Geologic map and digital database of the Romoland 7.5' quadrangle, Riverside County, California
Douglas M. Morton, Kelly R. Bovard, Gregory Morton
2003, Open-File Report 2003-102
Open-File Report 03-102 contains a digital geologic map database of the Romoland 7.5’ quadrangle, Riverside County, California that includes: ARC/INFO (Environmental Systems Research Institute, http://www.esri.com) version 7.2.1 coverages of the various elements of the geologic map. A Postscript file to plot the geologic map on a topographic base, and containing a Correlation...
Evidence of disease-related amphibian decline in Colorado
Erin Muths, Paul Stephen Corn, Allan P. Pessier, D. Earl Green
2003, Biological Conservation (110) 357-365
The recent discovery of a pathogenic fungus (Batrachochytrium dendrobatidis) associated with declines of frogs in the American and Australian tropics, suggests that at least the proximate cause, may be known for many previously unexplained amphibian declines. We have monitored boreal toads in Colorado since 1991 at four sites using capturea??recapture...
Petroleum systems and geologic assessment of oil and gas in the Uinta-Piceance Province, Utah and Colorado
USGS Uinta-Piceance Assessment Team, Paul G. Lillis, Augusta Warden, J. D. King, Vito F. Nuccio, Laura N. Roberts, Russell F. Dubiel, Mark Kirschbaum, Ronald C. Johnson, Stephen B. Roberts, Mitchell E. Henry, Thomas M. Finn, Edward A. Johnson, Robert D. Hettinger, Philip H. Nelson, J. W. Schmoker, Timothy R. Klett, Ronald Charpentier, Robert A. Crovelli, Troy Cook, Thomas S. Ahlbrandt, G. F. Ulmishek, Phuong A. Le
2003, Data Series 69-B
The purpose of the U.S. Geological Survey's (USGS) National Oil and Gas Assessment is to develop geology-based hypotheses regarding the potential for additions to oil and gas reserves in priority areas of the United States, focusing on the distribution, quantity, and availability of oil and natural gas resources. The USGS...
A geographic information system tool to solve regression equations and estimate flow-frequency characteristics of Vermont Streams
Scott A. Olson, Gary D. Tasker, Craig M. Johnston
2003, Open-File Report 2002-494
Estimates of the magnitude and frequency of streamflow are needed to safely and economically design bridges, culverts, and other structures in or near streams. These estimates also are used for managing floodplains, identifying flood-hazard areas, and establishing flood-insurance rates, but may be required at ungaged sites where no observed flood...
Nitrogen and phosphorus in streams of the Great Miami River Basin, Ohio, 1998–2000
David C. Reutter
2003, Water-Resources Investigations Report 2002-4297
Sources and loads of nitrogen and phosphorus in streams of the Great Miami River Basin were evaluated as part of the National Water-Quality Assessment program. Water samples were collected by the U.S. Geological Survey from October 1998 through September 2000 (water years 1999 and 2000) at five locations in Ohio...
Water quality data at selected sites in the Mississippi Valley-type Zn-Pb ore district of upper Silesia, Poland, 1995-97
Laurie Wirt, Jacek Motyka, David Leach, Maria Sass-Gustkiewicz, Marek Szuwarzynski, Zbigniew Adamczyk, Paul Briggs, Al Meiers
2003, Open-File Report 2001-283
The water chemistry of aquifers and streams in the Upper Silesia Ore District, Poland are affected by their proximity to zinc, lead, and silver ores and by ongoing mining activities that date back to the 11th century. This report presents hydrologic and water-quality data collected as part of a collaborative...
Delineation of water sources for public-supply wells in three fractured-bedrock aquifer systems in Massachusetts
Forest P. Lyford, Carl S. Carlson, Bruce P. Hansen
2003, Water-Resources Investigations Report 2002-4290
Fractured-bedrock aquifer systems in West Newbury, Maynard, and Paxton, Massachusetts, were studied to advance methods of data collection and analysis for delineating contributing areas to public-supply wells completed in fractured rock and for determining the effects of pumping on streams and wetlands. Contributing areas, as defined for this study, include...
Sediment deposition and occurrence of selected nutrients, other chemical constituents, and diatoms in bottom sediment, Perry Lake, northeast Kansas, 1969–2001
Kyle E. Juracek
2003, Water-Resources Investigations Report 2003-4025
A combination of bathymetric surveying and bottom-sediment coring was used to investigate sediment deposition and the occurrence of selected nutrients (total nitrogen and total phosphorus), organic and total carbon, 26 metals and trace elements, 15 organochlorine compounds, 1 radionuclide, and diatoms in bottom sediment of Perry Lake, northeast Kansas. The...
Development of regional curves of bankfull-channel geometry and discharge for streams in the non-urban, Piedmont Physiographic Province, Pennsylvania and Maryland
Peter J. Cinotto
2003, Water-Resources Investigations Report 2003-4014
Stream-restoration projects utilizing natural stream designs frequently are based on the bankfull-channel characteristics of stream reaches that can accommodate streamflow and sediment transport without excessive erosion or deposition and lie within a watershed that has similar runoff characteristics. The bankfull channel at an ungaged impaired site or reference reach is...
Phylogeography of infectious haematopoietic necrosis virus in North America
Gael Kurath, Kyle A. Garver, Ryan M. Troyer, Eveline J. Emmenegger, Katja Einer-Jensen, Eric D. Anderson
2003, Journal of General Virology (84) 803-814
Infectious hematopoietic necrosis virus (IHNV) is a rhabdoviral pathogen that infects wild and cultured salmonid fish throughout the Pacific Northwest of North America. IHNV causes severe epidemics in young fish and can cause disease or occur asymptomatically in adults. In a broad survey of 323 IHNV field isolates, sequence analysis...
Simulated ground-water flow in the Hueco Bolson, an alluvial-basin aquifer system near El Paso, Texas
Charles E. Heywood, Richard M. Yager
2003, Water-Resources Investigations Report 2002-4108
The neighboring cities of El Paso, Texas, and Ciudad Juarez, Chihuahua, Mexico, have historically relied on ground-water withdrawals from the Hueco Bolson, an alluvial-aquifer system, to supply water to their growing populations. By 1996, ground-water drawdown exceeded 60 meters in some areas under Ciudad Juarez and El Paso. A simulation...
Trends in concentrations of polychlorinated biphenyls in fish tissue from selected sites in the Delaware River basin in New Jersey, New York, and Pennsylvania, 1969-98
Karen Riva-Murray, Robin A. Brightbill, Michael D. Bilger
2003, Water-Resources Investigations Report 2001-4066
 Polychlorinated biphenyl (PCB) concentrations in fish tissue collected during the 1990's from selected sites in the Delaware River Basin were compared with concentrations in fish tissue collected during 1969-88. Data collected by State and Federal agencies on concentrations in whole-body common carp (Cyprinus carpio) and white sucker (Catostomus commersoni), and...