Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16746
Hydrogeology and simulated ground-water flow through the unconsolidated aquifers of northeastern St. Joseph County, Indiana Hydrogeology and simulated ground-water flow through the unconsolidated aquifers of northeastern St. Joseph County, Indiana
The U.S. Geological Survey investigated ground-water resources of northeastern St. Joseph County, Indiana, during 1990-93. The investigation included field measurements of water levels and numerical models of ground-water flow. This report documents results of that work and includes descriptions of (1) hydrogeologic framework, (2) water levels, (3) model sensitivity to variations in...
Authors
E. Randall Bayless, L. D. Arihood
Altitude and configuration of the potentiometric surface in the crystalline and metasedimentary rocks in East Brandywine, Upper Uwchlan and Uwchlan townships and parts of Caln, East Caln, and West Whiteland townships, Chester County, Pennsylvania, April 1 Altitude and configuration of the potentiometric surface in the crystalline and metasedimentary rocks in East Brandywine, Upper Uwchlan and Uwchlan townships and parts of Caln, East Caln, and West Whiteland townships, Chester County, Pennsylvania, April 1
No abstract available
Authors
Stephen S. Aichele, C. R. Wood
Altitude and configuration of the potentiometric surface, December 6, 1994, in the carbonate rocks in part of East Whiteland and Charlestown townships, Chester County, Pennsylvania Altitude and configuration of the potentiometric surface, December 6, 1994, in the carbonate rocks in part of East Whiteland and Charlestown townships, Chester County, Pennsylvania
A map showing ground-water levels in the carbonate rocks in part of East Whiteland and Charlestown Townships, Chester County, Pennsylvania, was constructed from water levels measured in 64 wells on December 6, 1994. Observed water-level altitudes range from 226 feet above sea level near Morehall Road to 400 feet above sea level near State Route 401 in East Whiteland Township.
Authors
B. C. McManus, R. A. Sloto
Altitude and configuration of the potentiometric surface in the crystalline and metasedimentary rocks in Valley and West Brandywine townships, Chester County, Pennsylvania, May 1992 through August 1993 Altitude and configuration of the potentiometric surface in the crystalline and metasedimentary rocks in Valley and West Brandywine townships, Chester County, Pennsylvania, May 1992 through August 1993
A map showing ground-water levels in crystalline and metasedimentary rocks in Valley and West Brandywine Townships, Chester County, Pennsylvania, was constructed from water levels measured in wells from May 1992 through August 1993. Pre-1992 measurements were incorporated on the map to provide control in areas where more recent data were not available. Because little ground-water...
Authors
J.E. McGovern, April Bossert, W.C. Wettstein
Serum factors as indicators of environmental stress: optimization of methodologies for striped bass Serum factors as indicators of environmental stress: optimization of methodologies for striped bass
No abstract available at this time
Authors
V. S. Blazer, D.L. Higginbotham, J.W. Fournie
Identification of organic compounds in the water of a fish culture system Identification of organic compounds in the water of a fish culture system
No abstract available at this time
Authors
J. Bonzo, D. C. Honeyfield
Neutrophil activity as a potential bioindicator for contaminant analysis Neutrophil activity as a potential bioindicator for contaminant analysis
No abstract available.
Authors
S. A. Stasiak, Paul C. Baumann
Nesting behavior of the poo-uli Nesting behavior of the poo-uli
We describe two sequential nestings of a pair of Poo-uli (Melamprosops phaeosoma), a Hawaiian honeycreeper nearing extinction. Similarities to nesting of most other honeycreepers included: nest site in ohia lehua (Metrosideros polymorpha Gaud.) canopy; breeding in March through June; monogamous breeding system with the putative male helping build the nest, feeding the putative female...
Authors
C. B. Kepler, T.K. Pratt, A.M. Ecton, A. Engilis, K.M. Fluetsch
Occurrence of pesticides in ground water in the White River Basin, Indiana, 1994–95 Occurrence of pesticides in ground water in the White River Basin, Indiana, 1994–95
Pesticides (herbicides and insecticides) are used extensively in the White River Basin. Application of herbicides to corn and soybeans accounts for most of the use. The U.S. Geological Survey collected samples from four networks of monitoring wells in the White River Basin during 1994-95. The most frequently detected compounds in ground water were desethyl atrazine (a breakdown product...
Authors
Joseph M. Fenelon, Rhett C. Moore
Hydrogeologic setting and simulation of pesticide fate and transport in the unsaturated zone of a regolith-mantled, carbonate-rock terrain near Newville, Pennsylvania Hydrogeologic setting and simulation of pesticide fate and transport in the unsaturated zone of a regolith-mantled, carbonate-rock terrain near Newville, Pennsylvania
Physical and chemical data were collected from May 1991 through April 1993 at a 4.5 hectare field site in Cumberland County, Pa., about 5 kilometers southeast of Newville. These data were used to define the hydrogeologic setting of a field site representative of the intensively farmed carbonate valleys of southeastern and south-central Pennsylvania. The environmental processing of...
Authors
D. J. Hippe, D. W. Hall
Size-dependent effects of continuous and intermittent feeding on starvation time and mass loss in starving yellow perch larvae and juveniles Size-dependent effects of continuous and intermittent feeding on starvation time and mass loss in starving yellow perch larvae and juveniles
Starvation rates of fish larvae living in patchy prey environments can have an important impact on cohort survival and recruitment. Despite this, little is known about how fluctuations in feeding experience influence starvation resistance and how this changes with ontogeny. Fish previously exposed to fluctuating food densities may not respond to long periods without food in the same way...
Authors
B. H. Letcher, J. A. Rice, L.B. Crowder, F. P. Binkowski
Construction aggregates Construction aggregates
Part of the Annual Commodities Review 1995. Production of construction aggregates such as crushed stone and construction sand and gravel showed a marginal increase in 1995. Most of the 1995 increases were due to funding for highway construction work. The major areas of concern to the industry included issues relating to wetlands classification and the classification of crystalline silica...
Authors
V.V. Tepordei