Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16731
GHASTI-determining physical properties of sediment containing natural and laboratory-formed gas hydrate: Chapter 24 GHASTI-determining physical properties of sediment containing natural and laboratory-formed gas hydrate: Chapter 24
No abstract available.
Authors
William J. Winters, William P. Dillon, I.A. Pecher, D.H. Mason
Relations among sulfate, metals, sediment, and streamflow data for a stream draining a coal-mined watershed in East-Central Pennsylvania Relations among sulfate, metals, sediment, and streamflow data for a stream draining a coal-mined watershed in East-Central Pennsylvania
Streamflow and water-quality data for the northern part of Swatara Creek, which drains a 112-km2 area in the Southern Anthracite Field of east-central Pennsylvania, indicate iron, copper, and lead, and to a lesser extent manganese and zinc, are transported with suspended particles during stormflow conditions. During stormflow conditions, concentrations of these constituents typically...
Authors
Charles A. Cravotta
The modern Earth narrative: Natural and human history of the Earth The modern Earth narrative: Natural and human history of the Earth
No abstract available.
Authors
R. J. Williams
Louisiana coastal wetlands: a resource at risk Louisiana coastal wetlands: a resource at risk
Approximately half the Nation's original wetland habitats have been lost over the past 200 years. In part, this has been a result of natural evolutionary processes, but human activities, such as dredging wetlands for canals or draining and filling for agriculture, grazing, or development, share a large part of the responsibility for marsh habitat alteration and destruction. Louisiana's...
Authors
S. Jeffress Williams
Book review: Carbon sequestration in soils: Science monitoring and beyond: Conference proceedings: St. Micheals Workshop, Maryland, December 3–5, 1998, NJ: Rosenberg, N.J. Book review: Carbon sequestration in soils: Science monitoring and beyond: Conference proceedings: St. Micheals Workshop, Maryland, December 3–5, 1998, NJ: Rosenberg, N.J.
No abstract available
Authors
Thomas G. Huntington
Obtaining Streamflow Statistics for Massachusetts Streams on the World Wide Web Obtaining Streamflow Statistics for Massachusetts Streams on the World Wide Web
A World Wide Web application has been developed to make it easy to obtain streamflow statistics for user-selected locations on Massachusetts streams. The Web application, named STREAMSTATS (available at http://water.usgs.gov/osw/streamstats/massachusetts.html ), can provide peak-flow frequency, low-flow frequency, and flow-duration statistics for most streams in Massachusetts. These...
Authors
Kernell G. Ries, Peter A. Steeves, Aleda Freeman, Raj Singh
Urban seismic experiments investigate Seattle fault and basin Urban seismic experiments investigate Seattle fault and basin
In the past decade, Earth scientists have recognized the seismic hazards that crustal faults and sedimentary basins pose to Seattle, Washington (Figure 1). In 1998, the US. Geological Survey and its collaborators initiated a series of urban seismic studies of the upper crust to better map seismogenic structures and sedimentary basins in the Puget Lowland. These studies are called the...
Authors
Thomas M. Brocher, Thomas L. Pratt, Ken C. Creager, Robert S. Crosson, William P. Steele, Craig S. Weaver, Arthur D. Frankel, Anne Trohu, Catherine M. Snelson, Kate C. Miller, Steven H. Harder, Uri S. ten Brink
Constraints on timing and rates of late Cenozoic incision by the Colorado River in Glenwood Canyon, Colorado: A preliminary synopsis Constraints on timing and rates of late Cenozoic incision by the Colorado River in Glenwood Canyon, Colorado: A preliminary synopsis
No abstract available.
Authors
Robert M. Kirkham, Michael J. Kunk, Bruce Bryant, Randall K. Streufert
Simulation of aquifer tests and ground-water flowpaths at the local scale in fractured shales and sandstones of the Brunswick Group and Lockatong Formation, Lansdale, Montgomery County, Pennsylvania Simulation of aquifer tests and ground-water flowpaths at the local scale in fractured shales and sandstones of the Brunswick Group and Lockatong Formation, Lansdale, Montgomery County, Pennsylvania
The U.S. Geological Survey, as part of technical assistance to the U.S. Environmental Protection Agency, has constructed and calibrated models of local-scale ground-water flow in and near Lansdale, Pa., where numerous sources of industrial contamination have been consolidated into the North Penn Area 6 Superfund Site. The local-scale models incorporate hydrogeologic structure of...
Authors
Daniel J. Goode, Lisa A. Senior
Procedures for scour assessments at bridges in Pennsylvania Procedures for scour assessments at bridges in Pennsylvania
Scour is the process and result of flowing water eroding the bed and banks of a stream. Scour at nearly 14,300 bridges(1) spanning water, and the stability of river and stream channels in Pennsylvania, are being assessed by the U.S. Geological Survey (USGS) in cooperation with the Pennsylvania Department of Transportation (PennDOT). Procedures for bridge-scour assessments have been...
Authors
Peter J. Cinotto, Kirk E. White
Surveys of water velocities in the vicinity of the discharge-release gates of Salamonie Lake Dam, northeastern Indiana, spring and winter 1998 Surveys of water velocities in the vicinity of the discharge-release gates of Salamonie Lake Dam, northeastern Indiana, spring and winter 1998
Two water-velocity surveys in the vicinity of the discharge-release gates were performed at the Salamonie Lake flood-control reservoir in northeastern Indiana during periods of high-discharge release. One survey was done in the spring when the reservoir pool was at high elevation; the other survey was in the winter when the reservoir pool was low. The maximum measured velocity was 2.4...
Authors
Scott E. Morlock, James A. Stewart