Conference Papers
Science Quality and Integrity
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
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Geochemical and geohydrological characteristics of bedrock and spol from two methods of mining at a reclaimed surface coal mine, Clarion County, PA, USA Geochemical and geohydrological characteristics of bedrock and spol from two methods of mining at a reclaimed surface coal mine, Clarion County, PA, USA
Two methods of mining caused subtle differences in geochemical and geohydrological characteristics of spoil at a reclaimed surface coal mine in western Pennsylvania. A dragline was used in the southern area of the mine, and bulldozers and front-end loaders were used in the northern area. Mining methods used in the intervening, middle area are uncertain. In general, overburden at the mine...
Authors
Charles A. Cravotta, Keith Brady, Linda C. Gustafson-Minnich, Michael R. DiMatteo
The distribution of silver in sediments from Massachusetts and Cape Cod Bays, and the changes in concentration with time-preliminary analysis The distribution of silver in sediments from Massachusetts and Cape Cod Bays, and the changes in concentration with time-preliminary analysis
No abstract available.
Authors
Michael H. Bothner, Marilyn R. Buchholtz ten Brink
Biogeochemical processes and migration of aqueous constituents in ground water contaminated with crude oil Biogeochemical processes and migration of aqueous constituents in ground water contaminated with crude oil
No abstract available.
Authors
Mary Jo Baedecker, Isabelle M. Cozzarelli
Instrument packages to study long-term sediment transport processes in a shallow bay Instrument packages to study long-term sediment transport processes in a shallow bay
Pressure and near-surface and near-bottom measurements of current, temperature, salinity and light transmission were required in Mobile Bay, a 3 m deep estuary on the Gulf of Mexico. This environment presented several obstacles to obtaining long term observations. Boat traffic, soft estuary bottom, heavy biofouling, rapid sample rates and large data storage were overcome by using...
Authors
William J. Strahle, Marinna A. Martini, Ray E. Davis
Integration of radio telemetry and hydraulic model data for siting and operating juvenile bypass systems on the Columbia River to reduce predation Integration of radio telemetry and hydraulic model data for siting and operating juvenile bypass systems on the Columbia River to reduce predation
No abstract available
Authors
R.S. Shively, T.P. Poe, R. Peters
Preliminary U-series disequilibrium and thermoluminescence ages of surficial deposits and paleosols associated with Quaternary faults, eastern Yucca Mountain Preliminary U-series disequilibrium and thermoluminescence ages of surficial deposits and paleosols associated with Quaternary faults, eastern Yucca Mountain
No abstract available.
Authors
James B. Paces, Christopher M. Menges, B. Wildmann, J. R. Wesling, Charles A. Bush, Kiyoto Futa, H. T. Millard, P. B. Maat, John W. Whitney
Comparison of flank margin cave development on San Salvador island, Bahamas, and Isla de Mona, Puerto Rico Comparison of flank margin cave development on San Salvador island, Bahamas, and Isla de Mona, Puerto Rico
San Salvador Island, Bahamas is a 161 Km2 tectonically stable late Quaternary carbonate island located 600 km east-southeast of Miami FL. San Salvador contains numerous flank margin caves (phreatic karst features) that developed primarily in late Pleistocene eolianites. These caves developed during a short time in versy small fresh-water lenses. Cave elevations and Uranium-series ages...
Authors
J. Mylroie, J.L. Carew, E.F. Frank, Matthew C. Larsen
USGS coastal studies in the northeastern Gulf of Mexico USGS coastal studies in the northeastern Gulf of Mexico
No abstract available.
Authors
Guy R. Gelfenbaum
Effects of arsenic on spectral reflectance of greenhouse-grown soybean and loblolly pine Effects of arsenic on spectral reflectance of greenhouse-grown soybean and loblolly pine
No abstract available.
Authors
David Mouat, Judith Lancaster, Nancy Milton, M.M. Chesley, Jody Hatzell, William Lassetter, John Picone
Manson impact structure research program: Summary through February 1994 Manson impact structure research program: Summary through February 1994
No abstract available.
Authors
D. J. Roddy, Eugene Merle Shoemaker, R. R. Anderson, Richard M. Mitterer
Pesticides detected in surface waters and fish of the Red River of the North drainage basin Pesticides detected in surface waters and fish of the Red River of the North drainage basin
The Red River of the North drainage basin (herein referred to as Red River Basin) within the United States is a study unit under the U.S. Geological Survey (USGS) National Water-Quality Assessment (NAWQA) program. The overall goals of this program, initiated to better define the status and trends of the Nation’s water quality, are to address regional and national water-quality issues in...
Authors
Mark E. Brigham
Nitrogen concentrations near the water table of the Sheyenne Delta aquifer beneath cropland areas, Ransom and Richland Counties, North Dakota Nitrogen concentrations near the water table of the Sheyenne Delta aquifer beneath cropland areas, Ransom and Richland Counties, North Dakota
No abstract available.
Authors
T.K. Cowdery, K. Goff