Pesticides in the atmosphere; distribution, trends, and governing factors
Michael S. Majewski, Paul D. Capel
1995, Open-File Report 94-506
A comprehensive review of existing literature on the occurrence and distribution of pesticides in the atmosphere of the United States and adjoining Canadian provinces showed that the atmosphere is an important part of the hydrologic cycle that acts to distribute and deposit pesticides in areas far removed from their application...
Water-quality assessment of the Rio Grande Valley study unit, Colorado, New Mexico, and Texas -- Analysis of selected nutrient, suspended-sediment, and pesticide data
S. K. Anderholm, M.J. Radell, S. F. Richey
1995, Water-Resources Investigations Report 94-4061
This report contains a summary of data compiled from sources throughout the Rio Grande Valley study unit of the National Water-Quality Assessment program. Information presented includes the sources and types of water-quality data available, the utility of water-quality data for statistical analysis, and a description of recent water-quality conditions and...
Overview of environmental and hydrogeologic conditions at Sitka, Alaska
Eppie V. Hogan
1995, Open-File Report 95-345
Maps and sidescan sonar images showing interpretation of acoustic backscatter overlain on historically mapped bottom sediments of the Ohio part of Lake Erie
David S. Foster, D. W. Folger, R.C. Circe, J. A. Fuller
1995, Open-File Report 95-252
Overview of environmental and hydrogeologic conditions at Iliamna, Alaska
James D. Hall
1995, Open-File Report 95-346
Benthic macrofauna data for San Francisco Bay, California, September 1986
Laurence E. Schemel, J.K. Thompson, J.G. Harmon, B. T. Yost
1995, Open-File Report 95-291
Benthic macrofauna were collected during September 1986 to evaluate locations for long-term monitoring stations as part of the U.S. Geological Survey Regional Effects Monitoring Program in San Francisco Bay, California. Three to ten replicate samples were collected with a modified Van Veen sampler (0.05 m2 area) at ten locations. One...
Centimeter-level orthometric heights at reference points along Florida's Big Bend coastline from Global Positioning System (GPS) static surveys
Nancy J. Marth, E. A. Raabe, R. P. Stumpf, E.C. Stone
1995, Open-File Report 95-216
Cerro Prieto geothermal field, Mexico; chemical analyses and other data for 58 samples collected in 1977-1979
James D. Bliss, editor(s)
1995, Open-File Report 95-514
This report releases the results of selected chemical analyses by the USGS of fluids collected from geothennal power production wells at the Cerro Prieto Geothennal Field, Mexico. Cerro Prieto, the world's largest producing hot-water geothennal field, is located 32 km southeast of Mexicali, Baja California. Comision Federal de Electricidad de...
Concentrations of mercury and other trace elements in walleye, smallmouth bass, and rainbow trout in Franklin D. Roosevelt Lake and the upper Columbia River, Washington, 1994
M.D. Munn, S.E. Cox, C.J. Dean
1995, Open-File Report 95-195
Three species of sportfish--walleye, smallmouth bass, and rainbow trout--were collected from Franklin D. Roosevelt Lake and the upstream reach of the Columbia River within the state of Washington, to determine the concentrations of mercury and other selected trace elements in fish tissue. Concentrations of total mercury in walleye fillets ranged...
Simulation of hydrodynamics and solute transport in the Neuse River estuary
Jeanne C. Robbins, Jerad Bales
1995, Open-File Report 94-511
An investigation was conducted to characterize flow, circulation, and transport in the Neuse River estuary, North Carolina. The study included a detailed field-measurement program and the calibration, validation, and application of a physically realistic numerical model of hydro- dynamics and transport through a 40-kilometer reach of the estuary. Water level,...
Elements of infrastructure and seismic hazard in the central United States: Database
B. S. Rhea
1995, Open-File Report 95-241
No abstract available....
Seismotectonic maps in the vicinity of New Madrid, Missouri — Database
B. S. Rhea
1995, Open-File Report 95-574
No abstract available....
Reassessment of hydrogeologic data and refinement of a regional ground-water-flow model for the Milford-Souhegan glacial-drift aquifer, Milford, New Hampshire
Joseph R. Olimpio, Philip T. Harte
1995, Open-File Report 95-281
Regional potential of selected Paleozoic carbonate units in the northern Midcontinent for undiscovered mississippi valley-type deposits
Walden P. Pratt
1995, Bulletin 1989-G
Isostatic gravity map of the Victorville 1:100,000 scale Quadrangle, California
R. L. Morin
1995, Open-File Report 95-16
Selected bibliography of Appalachian coalbed methane
Paul C. Lyons, Robert T. Ryder
1995, Open-File Report 95-572
Precambrian crustal blocks in Minnesota: Neodymium isotope evidence from basement and metasedimentary rocks
S. R. Hemming, G. N. Hanson, S. M. McLennan
1995, Bulletin 1904-U
No abstract available....
Ground-water flow and effects of agricultural application of sewage sludge and other fertilizers on the chemical quality of sediments in the unsaturated zone and ground water near Platteville, Colorado, 1985-89
N. G. Gaggiani
1995, Water-Resources Investigations Report 94-4037
From fall 1985 through 1989, 6,431 dry tons of anaerobic, digested, sewage sludge were applied as a fertilizer on about 1 square mile of sandy farm- land near Platteville, Colorado. Mean nitrite plus nitrate as nitrogen concentrations in the surficial aquifer increased during the period of sewage- sludge application. However,...
Simulation of hydrodynamics and solute transport in the Pamlico River estuary, North Carolina
Jerad Bales, Jeanne C. Robbins
1995, Open-File Report 94-454
An investigation was conducted to characterize flow, circulation, and solute transport in the Pamlico River estuary, North Carolina. The study included a detailed field-measurement program and the calibration, validation, and application of a physically realistic numerical model of hydro- dynamics and transport. Water level, salinity, water temperature, wind speed and...
Physical processes of shallow mafic dike emplacement near the San Rafael Swell, Utah
Paul T. Delaney, A.E. Gartner
1995, Open-File Report 95-491
Characterizing water quality in the North Fork-Fall Creek Hydrologic Unit Area, Tennessee
Thomas Duane Byl, H. C. Mattraw
1995, Open-File Report 95-372
The North Fork-Fall Creek Watershed in Bedford County, Tennessee is a karst terrain with a complex interconnection between ground water and the surface water-drainage network. Multiple sources of agricultural and domestic contamination make the effective design of best management practices difficult. Ongoing investigations by the U.S. Geological Survey and several...
Results of geophysical surveys of glacial deposits near a former waste-disposal site, Nashua, New Hampshire
Joseph D. Ayotte, Tracy H. Dorgan
1995, Open-File Report 95-142
Geophysical investigations were done near a former waste-disposal site in Nashua, New Hampshire to determine the thickness and infer hydraulic characteristics of the glacial sediments that underlie the area. Approximately 5 miles of ground- penetrating radar (GPR) data were collected in the study area by use of dual-80 Megahertz antennas....
Constraints on the origins of hydrocarbon gas from compositions of gases at their site of origin
L.C. Price, M. Schoell
1995, Nature (378) 368-371
It is widely accepted that natural gas is formed from thermal decomposition of both oil in reservoirs and, to a lesser extent, the organic matter in shales from which the oil was derived1–6. But laboratory pyrolysis experiments on shales do not reproduce the methane-rich composition typical of most gas reservoirs7,...
Geohydrology of the Flints Pond Aquifer, Hollis, New Hampshire
Joseph D. Ayotte, Tracy H. Dorgan
1995, Open-File Report 95-363
Flints pond has been subjected to accelerated eutrophication as a result of watershed development (building of new homes and conversion of summer cottages into permanent homes) since the 1930's. Ground-water flow is the primary recharge and discharge mechanism for Flints Pond. The saturated thickness, transmissive properties, and altitude of the...
Preliminary geologic map of the Little Piute Mountains, San Bernardino County, California
Keith A. Howard, Michael L. Dennis, Karl E. Karlstrom, Geoffrey A. Phelps
1995, Open-File Report 95-598
Introduction The Little Piute Mountains in the eastern Mojave Desert expose a series of folds and thrust faults involving metamorphosed Paleozoic strata (Miller and others, 1982; Stone and others, 1983). Detailed mapping of these structures was undertaken to help elucidate regional Mesozoic structural evolution. Earlier geologic maps were prepared by...
