Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16727
Study design and preliminary data analysis for a streambank fencing project in the Mill Creek Basin, Pennsylvania Study design and preliminary data analysis for a streambank fencing project in the Mill Creek Basin, Pennsylvania
The Pequea Creek and Mill Creek Basins within Lancaster and Chester Counties in Pennsylvania have been identified as areas needing control of nonpoint-source (NFS) pollution to improve water quality. The two basins are a total of approximately 200 square miles and are primarily underlain by carbonate bedrock. Land use is predominantly agriculture. The most common agricultural NFS...
Authors
Daniel G. Galeone, Edward H. Koerkle
Ground-water resources data for Warren County, Pennsylvania Ground-water resources data for Warren County, Pennsylvania
This report presents lithologic, hydrologic, and chemical data collected during a study of the ground-water resources of Warren County, Pa. The study was conducted during 1983-90 by the U.S. Geological Survey, in cooperation with the Pennsylvania Department of Conservation and Natural Resources, Bureau of Topographic and Geologic Survey, and the Warren County Commissioners. The data...
Authors
M.E. Moore, T. F. Buckwalter
Pb and O isotopic constraints on the source of granitic rocks from Cape Breton Island, Nova Scotia, Canada Pb and O isotopic constraints on the source of granitic rocks from Cape Breton Island, Nova Scotia, Canada
Pb isotopic compositions of leached feldspars from twenty-three plutons in Cape Breton Island can be divided into two groups: anorthosite, syenite, and granite in the Blair River Complex, which have the least radiogenic compositions on the Island, and granitic rocks from terranes (Aspy, Bras d'Or, and Mira) to the south. Pb isotopic data for the Blair River Complex (206Pb/204Pb = 17.399...
Authors
Robert A. Ayuso, S. M. Barr, Frederick J. Longstaffe
Analysis of the mobility of far reaching debris flows on the Mississippi Fan, Gulf of Mexico Analysis of the mobility of far reaching debris flows on the Mississippi Fan, Gulf of Mexico
No abstract available.
Authors
J. Locat, H. J. Lee, H.C. Nelson, W. C. Schwab, D.C. Twichell
Nature of Aeromonas salmonicida carriage on asymptomatic rainbow trout maintained in a culture system with recirculating water and fluidized sand biofilters Nature of Aeromonas salmonicida carriage on asymptomatic rainbow trout maintained in a culture system with recirculating water and fluidized sand biofilters
An asymptomatic carrier population of rainbow trout Oncorhynchus mykiss was examined for Aeromonas salmonicida by primary dilution counts on Coomassie Brilliant Blue agar and also by streaking on bacteriological media after a 24–48-h pre-enrichment in tryptic soy broth. The pathogen was detected by primary dilution plate counts in 1 spleen, 15 gill, and 19 mucus samples of the 100 trout...
Authors
R. C. Cipriano, G. L. Bullock, A. Noble
A review of the tectonic problems of the strike-slip northern boundary of the Caribbean Plate and examination by GLORIA A review of the tectonic problems of the strike-slip northern boundary of the Caribbean Plate and examination by GLORIA
No abstract available.
Authors
William P. Dillon, N. Terence Edgar, Kathryn M. Scanlon, Dwight F. Coleman
Ground-water quality in the Calumet Region of northwestern Indiana and northeastern Illinois, June 1993 Ground-water quality in the Calumet Region of northwestern Indiana and northeastern Illinois, June 1993
Water samples were collected from 128 wells in a large industrial and urban area in northwestern Indiana and northeastern Illinois during June 1993. Samples were collected from wells completed in one of four geohydrologic units: surficial sand aquifer (Calumet aquifer), clay confining unit, confined sand aquifers, and a carbonate-bedrock aquifer (Silurian-Devonian aquifer). Samples were...
Authors
Richard F. Duwelius, Robert T. Kay, Scott T. Prinos
Osmium isotopes and silver as tracers of anthropogenic metals in sediments from Massachusetts and Cape Cod bays Osmium isotopes and silver as tracers of anthropogenic metals in sediments from Massachusetts and Cape Cod bays
High concentrations of osmium (Os) and silver (Ag) and low 187Os/186Os ratios in Boston sewage make these elements sensitive tracers of the influence of sewage on marine sediments in Massachusetts and Cape Cod bays. Pristine marine sediments have Ag concentrations more than 200 times lower than sewage sludge, Os concentrations 10-40 times lower, and 187Os/186Os ratios six times higher...
Authors
G.E. Ravizza, Michael H. Bothner
Dependence of waterbirds and shorebirds on shallow-water habitats in the Mid-Atlantic coastal region: An ecological profile and management recommendations Dependence of waterbirds and shorebirds on shallow-water habitats in the Mid-Atlantic coastal region: An ecological profile and management recommendations
Waterbirds (waterfowl, colonially nesting wading and seabirds, ospreys [Pandion haliaetus], and bald eagles [Haliaeetus leucocephalus]) and shorebirds (sandpipers, plovers, and relatives) may constitute a large fraction of the toplevel carnivore trophic component in many shallow-water areas of the mid-Atlantic region. The large biomass of many species (>1 kg body mass for the two raptors...
Authors
R.M. Erwin
Bacteriological quality of ground water used for household supply, Lower Susquehanna River basin, Pennsylvania and Maryland Bacteriological quality of ground water used for household supply, Lower Susquehanna River basin, Pennsylvania and Maryland
This report describes the bacteriological results of a ground-water study conducted from 1993 to 1995 as part of the U.S. Geological Survey's National Water-Quality Assessment Program in the Lower Susquehanna River Basin study unit. Water samples collected from 146 household supply wells were analyzed for fecal-indicator organisms including total coliform, fecal coliform, Escherichia...
Authors
Tammy M. Bickford, Bruce D. Lindsey, M.R. Beaver
Water-quality assessment of the lower Susquehanna River basin, Pennsylvania and Maryland: Environmental setting Water-quality assessment of the lower Susquehanna River basin, Pennsylvania and Maryland: Environmental setting
No abstract available
Authors
Dennis W. Risser, Steven F. Siwiec
Survival of radio-collared nestling Puerto Rican parrots Survival of radio-collared nestling Puerto Rican parrots
No abstract available.
Authors
J.M. Meyers, W.J. Arendt, G.D. Lindsey