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Page 2679, results 66951 - 66975

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Publication Extents

Not all publications have extents, not all extents are completely accurate
The Alaska Volcano Observatory - Expanded monitoring of volcanoes yields results
Steven R. Brantley, Robert G. McGimsey, Christina A. Neal
2004, Fact Sheet 2004-3084
Recent explosive eruptions at some of Alaska's 52 historically active volcanoes have significantly affected air traffic over the North Pacific, as well as Alaska's oil, power, and fishing industries and local communities. Since its founding in the late 1980s, the Alaska Volcano Observatory (AVO) has installed new monitoring networks and...
Use of short-term (5-Minute) and long-term (18-Hour) leaching tests to characterize, fingerprint, and rank mine-waste material from historical mines in the Deer Creek, Snake River, and Clear Creek Watersheds in and around the Montezuma Mining District, Colorado
Philip L. Hageman
2004, Scientific Investigations Report 2004-5104
Precipitation-induced runoff from historical mine-waste located adjacent to the headwaters of the Snake River, Deer Creek, Saints John Creek, Grizzly Gulch, Stevens Gulch, and Leavenworth Creek contributes to the degradation of water quality in these streams. Because historical mine-waste piles have had long-term exposure to the atmosphere, it is surmised...
Surface-water-quality conditions and relation to taste-and-odor occurrences in the Lake Olathe Watershed, Northeast Kansas, 2000-02
David P. Mau, Andrew C. Ziegler, Stephen D. Porter, Larry M. Pope
2004, Scientific Investigations Report 2004-5047
Surface water in the Lake Olathe watershed, located in northeast Kansas, was sampled from June 2000 through December 2002 to characterize water-quality conditions in relation to physical properties, major ions, sediment, nutrients, selected trace elements, selected pesticides, fecal indicator bacteria, phytoplankton, and taste-and-odor compounds. In addition, two continuous real-time water-quality...
Preliminary report on using imaging spectroscopy to map ultramafic rocks, serpentinites, and tremolite-actinolite-bearing rocks in California
Gregg A. Swayze, Chris T. Higgins, John P. Clinkenbeard, Raymond F. Kokaly, Roger N. Clark, Gregory P. Meeker, Stephen J. Sutley
2004, Open-File Report 2004-1304
Airborne Visible/InfraRed Imaging Spectrometer (AVIRIS) data were collected in approximately 3- kilometer-wide swaths over selected areas in El Dorado and Plumas Counties that contain serpentinite and ultramafic rocks as part of an experiment to determine if potentially asbestos-bearing rocks could be identified spectrally. M ineral maps created from the AVIRIS...
Sylhet-Kopili/Barail-Tipam Composite Total Petroleum System, Assam Geologic Province, India
Craig J. Wandrey
2004, Bulletin 2208-D
The Sylhet-Kopili/Barail-Tipam Composite total petroleum system (TPS) (803401) is located in the Assam Province in northeasternmost India and includes the Assam Shelf south of the Brahmaputra River. The area is primarily a southeast-dipping shelf overthrust by the Naga Hills on the southeast and the Himalaya Mountain range to the north....
Formation, evolution, and stability of coastal cliffs: Status and trends
Monty A. Hampton, Gary B. Griggs
2004, Professional Paper 1693
The Ocean Studies Board of the National Research Council recently reviewed the U.S. Geological Survey's Coastal and Marine Geology (USGS-CMG) program. One of the Board's primary recommendations was that CMG prepare comprehensive assessments of the nation's coastal and marine regions, drawing on expertise not only from within the USGS, but...
Distribution of Holocene Sediment in Chesapeake Bay as Interpreted from Submarine Geomorphology of the Submerged Landforms, Selected Core Holes, Bridge Borings and Seismic Profiles
Wayne L. Newell, Inga E. Clark, Owen Bricker
2004, Open-File Report 2004-1235
Overview -- We have interpreted the geomorphology of the submerged landforms to show thick Holocene sediment that accumulated from three different sources during on-going sea level rise that began 10,000 - 12,000 years ago at the end of Pleistocene. We used a variety of subsurface data from the literature...
Analytical results from ground-water sampling using a direct-push technique at the Dover National Test Site, Dover Air Force Base, Delaware, June-July 2001
William R. Guertal, Marie Stewart, Jeffrey R. Barbaro, Timthoy J. McHale
2004, Open-File Report 2003-380
A joint study by the Dover National Test Site and the U.S. Geological Survey was conducted from June 27 through July 18, 2001 to determine the spatial distribution of the gasoline oxygenate additive methyl tert-butyl ether and selected water-quality constituents in the surficial aquifer underlying the Dover National Test Site...
Hydrogeology, water quality, and ecology of Anderton Branch near the Quail Hollow Landfill, Bedford County, Tennessee, 1995-99
James Farmer
2004, Scientific Investigations Report 2004-5074
The Quail Hollow Landfill, located in southeastern Bedford County on the Highland Rim overlooking the Central Basin karst region of Tennessee, is constructed on the gravelly, clay-rich residuum of the Fort Payne Formation of Mississippian age. A conceptual hydrologic model of the landfill indicated that Anderton Branch was at risk...
Quality of water in the fractured-bedrock aquifer of New Hampshire
Richard Bridge Moore
2004, Scientific Investigations Report 2004-5093
Over the past few decades, New Hampshire has experienced considerable population growth, which is forcing some communities to look for alternative public and private water supplies in the bedrock aquifer. Because the quality of water from the aquifer can vary, the U.S. Geological Survey statistically analyzed well data from 1,353...
A theory for modeling ground-water flow in heterogeneous media
Richard L. Cooley
2004, Professional Paper 1679
Construction of a ground-water model for a field area is not a straightforward process. Data are virtually never complete or detailed enough to allow substitution into the model equations and direct computation of the results of interest. Formal model calibration through optimization, statistical, and geostatistical methods is being applied to...
Liquefaction-induced lateral spreading in Oceano, California, during the 2003 San Simeon Earthquake
Thomas L. Holzer, Thomas E. Noce, Michael J. Bennett, Carola Di Alessandro, John Boatwright, John C. Tinsley III, Russell W. Sell, Lewis I. Rosenberg
2004, Open-File Report 2004-1269
The December 22, 2003, San Simeon, California, (M6.5) earthquake caused damage to houses, road surfaces, and underground utilities in Oceano, California. The community of Oceano is approximately 50 miles (80 km) from the earthquake epicenter. Damage at this distance from a M6.5 earthquake is unusual. To understand the causes of...
Effects of changes in reservoir operations on water quality and trophic state indicators in Voyageurs National Park, northern Minnesota, 2001-03
Victoria G. Christensen, G. A. Payne, Larry W. Kallemeyn
2004, Scientific Investigations Report 2004-5044
Implementation of an order by the International Joint Commission in January 2000 has changed operating procedures for dams that regulate two large reservoirs in Voyageurs National Park in northern Minnesota. These new procedures were expected to restore a more natural water regime and affect water levels, water quality, and trophic...
Surficial geologic map of the Ellendale quadrangle, Shelby County, Tennessee
Roy Van Arsdale
2004, Scientific Investigations Map 2836
The depiction of geology on this map is designed to aid in urban planning and analysis of potential damage in the event of strong earthquake motion. The geologic map by itself does not analyze potential earthquake damage, but is designed to be used by...
Application of Acoustic and Optic Methods for Estimating Suspended-Solids Concentrations in the St. Lucie River Estuary, Florida
Eduardo Patino, Michael J. Byrne
2004, Scientific Investigations Report 2004-5028
Acoustic and optic methods were applied to estimate suspended-solids concentrations in the St. Lucie River Estuary, southeastern Florida. Acoustic Doppler velocity meters were installed at the North Fork, Speedy Point, and Steele Point sites within the estuary. These sites provide varying flow, salinity, water-quality, and channel cross-sectional characteristics. The monitoring...
Availability Of Ground-Water Data For California, Water Year 2003
Julia A. Huff
2004, Fact Sheet 2004-3061
The U.S. Geological Survey, Water Resources, in cooperation with Federal, State, and local agencies, obtains a large amount of data pertaining to the groundwater resources of California each water year (October 1?September 30). These data constitute a valuable database for developing an improved understanding of the water resources of the...
Questa baseline and pre-mining ground-water quality investigation. 1. Depth to bedrock determinations using shallow seismic data acquired in the Straight Creek drainage near Red River, New Mexico
Michael H. Powers, Bethany L. Burton
2004, Open-File Report 2004-1236
In late May and early June of 2002, the U.S. Geological Survey (USGS) acquired four P-wave seismic profiles across the Straight Creek drainage near Red River, New Mexico. The data were acquired to support a larger effort to investigate baseline and pre-mining ground-water quality in the Red River basin (Nordstrom...
Delineation of areas contributing recharge to selected public-supply wells in Glacial Valley-Fill and Wetland Settings, Rhode Island
Paul J. Friesz
2004, Scientific Investigations Report 2004-5070
Areas contributing recharge and sources of water to one proposed and seven present public-supply wells, screened in sand and gravel deposits and clustered in three study areas, were determined on the basis of calibrated, steady-state ground-water-flow models representing average hydrologic conditions. The area contributing recharge to a well is defined...
Evaluation of Methods Used for Estimating Selected Streamflow Statistics, and Flood Frequency and Magnitude, for Small Basins in North Coastal California
Michael P. Mann, Jule Rizzardo, Richard Satkowski
2004, Scientific Investigations Report 2004-5068
Accurate streamflow statistics are essential to water resource agencies involved in both science and decision-making. When long-term streamflow data are lacking at a site, estimation techniques are often employed to generate streamflow statistics. However, procedures for accurately estimating streamflow statistics often are lacking. When estimation procedures are developed, they often...