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Page 217, results 5401 - 5425

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Geologic map of the Reyes Peak quadrangle, Ventura County, California
Scott A. Minor
2004, Open-File Report 2004-1420
New 1:24,000-scale geologic mapping in the Cuyama 30' x 60' quadrangle, in support of the USGS Southern California Areal Mapping Project (SCAMP), is contributing to a more complete understanding of the stratigraphy, structure, and tectonic evolution of the complex junction area between the NW-trending Coast Ranges and EW-trending western Transverse...
Triangle area water supply monitoring project, October 1988 through September 2001, North Carolina -- description of the water-quality network, sampling and analysis methods, and quality-assurance practices
Carolyn J. Oblinger
2004, Open-File Report 2004-1278
The Triangle Area Water Supply Monitoring Project was initiated in October 1988 to provide long-term water-quality data for six area water-supply reservoirs and their tributaries. In addition, the project provides data that can be used to determine the effectiveness of large-scale changes in water-resource management practices, document differences in water...
Biosolids, soil, crop, ground-water, and streambed-sediment data for a biosolids-application area near Deer Trail, Colorado, 2002-2003
Tracy J.B. Yager, David B. Smith, James G. Crock
2004, Open-File Report 2004-1404
In January 1999, the U.S. Geological Survey began an expanded monitoring program near Deer Trail, Colorado, in cooperation with the Metro Wastewater Reclamation District and the North Kiowa Bijou Groundwater Management District. Monitoring components were biosolids, soils, crops, ground water, and streambed sediments. The monitoring program addresses concerns from the...
Migration stopover ecology of western avian populations: A southwestern migration workshop
Susan K. Skagen, Cynthia P. Melcher, Rob Hazelwood
2004, Open-File Report 2004-1452
The importance of migration stopover sites in ensuring that migratory birds successfully accomplish their journeys between breeding and non-breeding ranges has come to the forefront of avian research. Migratory birds that breed in western United States (US) and Canada and overwinter primarily in western Mexico migrate across the arid region...
Gulf of Mexico Integrated Science - Tampa Bay Study Overview
Kimberly Yates
2004, Open-File Report 2004-1449
The U.S. Geological Survey's Gulf of Mexico Integrated Science - Tampa Bay Study combines the expertise of federal, state, and local partners to address some of the most pressing ecological problems of the Tampa Bay estuary. This project serves as a template for integrated research projects in other coastal ecosystems...
User's Guide for the MapImage Reprojection Software Package, Version 1.01
Michael P. Finn, Jason R. Trent
2004, Open-File Report 2004-1394
Scientists routinely accomplish small-scale geospatial modeling in the raster domain, using high-resolution datasets (such as 30-m data) for large parts of continents and low-resolution to high-resolution datasets for the entire globe. Recently, Usery and others (2003a) expanded on the previously limited empirical work with real geographic data by compiling and...
Acceleration and volumetric strain generated by the Parkfield 2004 earthquake on the GEOS strong-motion array near Parkfield, CA
Rodger D. Borcherdt, Malcolm J.S. Johnston, Christopher Dietel, Gary Glassmoyer, Doug Myren, Christopher Stephens
2004, Open-File Report 2004-1376
An integrated array of 11 General Earthquake Observation System (GEOS) stations installed near Parkfield, CA provided on scale broad-band, wide-dynamic measurements of acceleration and volumetric strain of the Parkfield earthquake (M 6.0) of September 28, 2004. Three component measurements of acceleration were obtained at each of the stations. Measurements of...
Real-time forecasts of tomorrow's earthquakes in California: A new mapping tool
Matt Gerstenberger, Stefan Wiemer, Lucy Jones
2004, Open-File Report 2004-1390
We have derived a multi-model approach to calculate time-dependent earthquake hazard resulting from earthquake clustering. This file report explains the theoretical background behind the approach, the specific details that are used in applying the method to California, as well as the statistical testing to validate the technique. We...
Comments on potential geologic and seismic hazards affecting coastal Ventura County, California
Stephanie L. Ross, David M. Boore, Michael A. Fisher, Arthur D. Frankel, Eric L. Geist, Kenneth W. Hudnut, Robert E. Kayen, Homa J. Lee, William R. Normark, Florence L. Wong
2004, Open-File Report 2004-1286
This report examines the regional seismic and geologic hazards that could affect proposed liquefied natural gas (LNG) facilities in coastal Ventura County, California. Faults throughout this area are thought to be capable of producing earthquakes of magnitude 6.5 to 7.5, which could produce surface fault offsets of as much as...
Data collected from USGS drilling in Lafayette Park, Washington, D.C. in November-December, 1976
David C. Prowell, Raymond A. Christopher
2004, Open-File Report 2004-1343
In 1976, the U.S. Geological Survey drilled four holes in Lafayette Park in Washington, D.C. These holes encountered two Coastal Plain units (Quaternary (undifferentiated) and the Lower Cretaceous Potomac Group), and then bottomed in Paleozoic metamorphic bedrock. The stratigraphic relations of the Coastal Plain formations indicate that the Potomac Group...