Conference Papers
Science Quality and Integrity
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse almost 5,000 conference papers authored by our scientists and refine search by topic, location, year, and advanced search.
Filter Total Items: 5347
Mapping woody vegetation and eastern red cedar in the Nebraska Sand Hills using AVIRIS
No abstract available.
Authors
Bruce K. Wylie, David Meyer, Michael J. Choate, L. Vierling, P. K. Kozak
Quaternary geochronology using combined U-Pb and U-series methods: The opal perspective
No abstract available.
Authors
Leonid A. Neymark, Y. V. Amelin
Seismotectonics of the 1964 Alaska earthquake as an analog for future tsunamigenic southern Cascadia subduction earthquakes
No abstract available.
Authors
George Plafker, Gary A. Carver, Samuel H. Clarke
Alteration of reactive mineral surfaces by ground water
Two different investigations of shallow sandy aquifers inform our thinking about the role of reactive iron minerals in hydrogeological systems. Ground water in a number of settings has been described as having elevated concentrations of dissolved iron in anoxic portions of contaminant plumes (e.g. Baedecker et al., 1993; Lyngkilde and Christensen, 1992), and the coupling of microbial reduction of
Authors
Janet S. Herman, Aaron L. Mills, Isabelle M. Cozzarelli
Analysis of USVI coastal feature products from the 1980s and 1990s
The authors have used color stereo photos along with a three-dimensional visualization photogrammetric software package, Socet Set, to produce orthophotometric-corrected mosaics of St. Croix, St. John, and St. Thomas in the U.S. Virgin Islands. These mosaics are used for numerous applications such as characterization of the shallow water benthic habitat, terrestrial habitat characterizations, and
Authors
R.A. Warner, D.G. Catanzaro, Rafe Boulon, C. Rogers, Zandy Hillis-Starr, B. Phillips, D. Barry, Stuart Henry, Barry E. Devine
Detecting change in water quality from implementation of limestone treatment systems in a coal-minded watershed
During 1996-97, a variety of limestone-based treatment systems were implemented to neutralize acidic mine drainage and reduce the transport of dissolved metals in the northern part of the Swatara Creek watershed, which drains a 43-mi2 (112-km2) area in the Southern Anthracite Field upstream from Ravine, Pa. Since 1996, the current project has monitored water quality upstream and downstream of each
Authors
Charles A. Cravotta, Jeffrey B. Weitzel
Integrating science and community values to effectively address environmental and land use conflict
No abstract available.
Authors
H. A. Karl
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 peak prior to
Authors
Charles A. Cravotta
Significance of geologic and biostratigraphic relations between the overlap assemblage and Havallah sequence, southern Shoshone Range, Nevada
No abstract available.
Authors
Thomas E. Moore, B. L. Murchey, A. G. Harris
Sediment oxygen demand rates in the Mangrove Lagoon, Benner Bay, and Vessup Bay in southeastern St. Thomas, U.S. Virgin Islands
No abstract available.
Authors
Orlando Ramos-Gines
Nutrients and pesticides in the Mississippi River Basin, Minnesota and Wisconsin, 1971-94
No abstract available.
Authors
J. R. Stark, J. D. Fallon, S. E. Kroening
The Goldfield mining district, Nevada: an acid sulfate bonanza gold deposit
This paper provides an introduction to the geology, ore deposits, and fluid geochemistry of the Goldfield mining district, Esmerelda and Nye Counties, Nevada. Also included is a brief interpretation of mineral maps of the western half of the district which were recently produced from remotely sensed imagery acquired by the Airborne Visible Infrared Imaging Spectrometer (AVIRIS) systems operated by
Authors
Barnaby W. Rockwell