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Page 3836, results 95876 - 95900

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Effects of carbon and nitrate on denitrification in bottom sediments of an effluent-dominated river
P. M. Bradley, P.B. McMahon, F. H. Chapelle
1995, Water Resources Research (31) 1063-1068
Nitrogen and carbon limitation of denitrification in the bed sediments of an effluent-dominated stream were investigated by quantifying the effects of nitrate and glucose additions on the rate of sediment N2O production. Bed sediment samples were collected from a 30-km stretch of the South Platte River where up to 95%...
Effects of agricultural, industrial, and municipal pollutants on wetlands and wildlife and wildlife health
Kathryn A. Converse
1995, Conference Paper, Proceedings Of A Joint Conference American Association Of Zoo Veterinarians, Wildlife Disease Association, And American Association Of Wildlife Veterinarians
Wetlands accumulate pollutants from adjacent areas through intentional discharge of sewage or industrial wastes, runoff of agricultural fertilizers and pesticides, and discharge from municipal storm drains.  Coastal wetlands receive more pollutants indirectly as the endpoint for upland drainage systems and directly through petroleum spills and insect abatement.  Wetlands that serve...
Carbonate deposition, Pyramid Lake subbasin, Nevada: 2. Lake levels and polar jet stream positions reconstructed from radiocarbon ages and elevations of carbonates (tufas) deposited in the Lahontan basin
L. Benson, Michaele Kashgarian, M. Rubin
1995, Palaeogeography, Palaeoclimatology, Palaeoecology (117) 1-30
Most of the tufas in the Pyramid Lake subbasin were deposited within the last 35,000 yr, including most of the mound tufas that border the existing lake. Many of the older tufas (> 21,000 yr B.P.) contained in the mounds were formed in association with ground-water discharge. The radiocarbon (14C)...
Louisiana ground-water map no. 8; potentiometric surface, 1991, of the Carrizo-Wilcox Aquifer in northwestern Louisiana
Ronald C. Seanor, Charles W. Smoot
1995, Water-Resources Investigations Report 95-4176
In northwestern Louisiana, the Carrizo-Wilcox aquifer is the primary source of ground water within six parishes (Bossier, Caddo, De Soto, Natchitoches, Red River, and Sabine) and the secondary source in parts of three other parishes (Bienville, Claiborne, and Webster). Withdrawals from the aquifer increased from 4.7 Mgal/d (million gallons per...
Ground-water flow and quality in Wisconsin's shallow aquifer system
P.A. Kammerer Jr.
1995, Water-Resources Investigations Report 90-4171
The areal concentration distribution of commonmineral constituents and properties of ground water in Wisconsin's shallow aquifer system are described in this report. Maps depicting the water quality and the altitude of the water table are included. The shallow aquifer system in Wisconsin, composed of unconsolidated sand and gravel and shallow...
Spatial and temporal patterns of late Quaternary eolian deposition, eastern Colorado, USA
R.F. Madole
1995, Quaternary Science Reviews (14) 155-177
Eolian sediment covers about 60% of Colorado east of the Rocky Mountains; about 30% of the sediment is sand and 70% is loess. Initially, flood plains were the principal sources of eolian sediment, but during the Holocene, dunes formed from older eolian sand and alluvium on uplands. Since latest Pleistocene...
Middle and Upper Ordovician nautiloid cephalopods of the Cincinnati Arch region of Kentucky, Indiana, and Ohio
R.C. Frey
1995, Professional Paper 1066-P
This chapter of 'Contributions to the Ordovician paleontology of Kentucky and nearby states' deals with the stratigraphic distribution, paleoecology, biogeography, and systematic paleontology of 50 species of nautiloid cephalopods from the Midcontinent. The species are placed in 30 genera. Most of the specimens are silicified and from Middle Ordovician rocks...
Documented and potential extreme peak discharges and relation between potential extreme peak discharges and probable maximum flood peak discharges in Texas
William H. Asquith, Raymond M. Slade Jr.
1995, Water-Resources Investigations Report 95-4249
The U.S. Geological Survey, in cooperation with the Texas Department of Transportation, conducted a study of extreme flood potential for Texas. Potential extreme peak discharges, derived from the relation between documented extreme peak discharges and their contributing drainage areas, can provide valuable information concerning the maximum expected peak discharge that...
Geohydrology of the Gallup's Quarry area, Plainfield, Connecticut
Robert L. Melvin, Janet Radway Stone, Patrick A. Craft, John W. Lane Jr.
1995, Water-Resources Investigations Report 93-4138
The geohydrology of the Gallup's Quarry area in Plainfield, Connecticut was characterized by the U.S. Geological Survey, in cooperation with the U.S. Environmental Protection Agency, to provide a preliminary framework for future remedial efforts. Gallup's Quarry, an inactive sand and gravel pit, was the site of unregulated disposal of an...
Geologic framework and hydrogeologic characteristics of the Edwards Aquifer outcrop, Hays County, Texas
John A. Hanson, Ted A. Small
1995, Water-Resources Investigations Report 95-4265
All of the hydrogeologic subdivisions within the Edwards aquifer outcrop in Hays County have some porosity and permeability. The most porous and permeable appear to be hydrogeologic subdivision VI, the Kirschberg evaporite member of the Kainer Formation; hydrogeologic subdivision III, the leached and collapsed members, undivided; and hydrogeologic subdivision II,...