Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16784
Time of travel of solutes in the Tuscarawas River Basin, Ohio, August and September, 1974
A time-of-travel study was made on a 106-mile reach of the Tuscarawas River to determine average velocity and dispersion characteristics between selected points. The reach was divided into five subreaches, and a fluorescent dye used as a tracer material. At about the 50-percent flow-duration level, time of travel of the peak concentration was 137 hours.
Authors
Arthur O. Westfall, Earl E. Webber
Limnology of selected lakes in Ohio, 1975
Water-quality reconnaissance by the U.S. Geological Survey and Ohio Environmental Protection Agency, to evaluate the status of Ohio's lakes and reservoirs was begun in 1975 with studies of 17 lakes. Spring and summer data collections for each lake included: profile measurements of temperature, dissolved oxygen, pH, and specific conductance; field and laboratory analyses of physical, biological, ch
Authors
Robert L. Tobin, John D. Youger
Nature and extent of ground-water-quality changes resulting from solid-waste disposal, Marion County, Indiana
Studies of seven landfills in the Indianapolis, Indiana, area indicate that in five of the landfills movement of ground water is from the deep aquifers into the uppermost aquifer. In the other two landfills, movement of ground water is from the shallow aquifers to the deeper aquifers, so that leachate is transported into the deeper aquifers. In all the landfills, the predominant direction of groun
Authors
R. A. Pettijohn
Geohydrology of the Englishtown Formation in the northern Coastal Plain of New Jersey
The Englishtown Formation of the Matawan Group of Late Cretaceous age is exposed in the western part of the New Jeresy Coastal Plain along a northeast-southwest trending zone extending from Raritan Bay to Delaware Bay. In outcrop, in the northern part of the Coastal Plain, the Englishtown typically consists of a series of thin, cross-stratified, fine- to medium-grained lignitic quartz sand beds in
Authors
W.D. Nichols
Ground-water resources of Chester County, Pennsylvania
Fifty gallons per minute (3 liters per second) or more may be obtained from wells in almost all parts of the county, but not at all locations. Adequate exploration to find fracture or solution openings is required. Five hundred gallons per minute (30 liters per second) or more may be obtained from some of the carbonate rocks. Linear features are visible on 1:1,000,000-to 1:24,000-scale aerial imag
Authors
Laurence J. McGreevy, Ronald A. Sloto
Water-quality study of Tulpehocken Creek, Berks County, Pennsylvania, prior to impoundment of Blue Marsh Lake
Blue Marsh Lake is planned as a multipurpose impoundment to be constructed on Tulpehocken Creek near Bernville, Berks County, Pennsylvania. Prior to construction, samples of water, bed material, and soil were collected throughout the impoundment site to determine concentrations of nutrients, insecticides, trace metals, suspended sediment, and bacteria.
Analyses of water suggest the Tulpehocken Cr
Authors
James L. Barker
Wading birds as biological indicators: 1975 colony survey
No abstract available.
Authors
Thomas W. Custer, Ronald G. Osborn
Population ecology of the mallard: IV. A review of duck hunting regulations, activity, and success, with special reference to the mallard
This, the fourth in a series of reports on the mallard, (Anas platyrhynchos), deals at length with the harvest of mallards by waterfowl hunters. Long-term summaries of duck hunting regulations (1948- 1974), Migratory Bird Hunting Stamp sales (1934-1974), Hunter Questionnaire (1952-1974), Duck Wing Collection (1960-1974), and Hunter Performance (1965-1972) Survey data for the United States are pres
Authors
Elwood M. Martin, Samuel M. Carney
The decline of brown pelicans on the Louisiana and Texas Gulf Coast
Before 1920, native populations of brown pelicans (Pelecanus occidentalis carolinensis) were estimated at 50,000 to 85,000 birds in Louisiana and 5,000 in Texas. By 1958, brown pelicans had vanished from two wintering areas in each state, and wintering and breeding birds disappeared from additional areas between 1959 and 1961. By 1963, the disappearance of the brown pelican from Louisiana was comp
Authors
K. A. King, Edward L. Flickinger, H. H. Hildebrand
Nationwide residues of mercury, lead, cadmium, arsenic, and selenium in starlings, 1973
Starlings (Sturnus vulgaris) collected in 1973 at 51 sites throughout the continental United States were analyzed for mercury, lead, cadmium, arsenic, and selenium. All samples contained detectable levels of these elements. In general, residues were low: mercury residues ranged from <0.01 to 0.20 ppm: lead, from <0.10 10 3.20 ppm: cadmium, from <0.05 to 0.20 ppm: arsenic, from <0.05 to 1.40 ppm: a
Authors
D. H. White, J. R. Bean, J. R. Longcore
Organochlorine pesticide residues associated with mortality: Addivity of chlordane and endrin
No abstract available.
Authors
J. Larry Ludke