Rex L. Baum, Robert W. Fleming
2001, Open-File Report 2001-413
Search Results
46734 results.
Alternate formats: RIS file of the first 3000 search results | Download all results as CSV | TSV | Excel | RSS feed based on this search | JSON version of this page of results
Page 1108, results 27676 - 27700
Publication Extents
Not all publications have extents, not all extents are completely accurateLoren F. Metzger, Marti E. Ikehara, James F. Howle
2001, Open-File Report 2001-414
A series of freshwater injection, storage, and recovery tests were conducted from September 1995 through September 1998 to evaluate the feasibility of artificially recharging ground water in the Lancaster area of the Antelope Valley, California. The tests used two production wells at a well field located in the southern part...
Jonathan S. Caine
2001, Open-File Report 2001-416
William Forney, Lora Richards, Kenneth D. Adams, Timothy B. Minor, Timothy G. Rowe, J. LaRue Smith, Christian G. Raumann
2001, Open-File Report 2001-418
Human activity in the Lake Tahoe Basin has increased substantially in the past four decades, causing significant impacts on the quality and clarity of the lake's famous deep, clear water. Protection of Lake Tahoe and the surrounding environment has become an important activity in recent years. A variety of agencies,...
Robert P. Kucks, Ronald L. Zawislak
2001, Open-File Report 2001-423
Principal facts for 12266 new gravity stations and 2880 stations previously released in paper form (Klasner and Kucks, 1988) for the state of South Dakota are presented. These data were contracted to fill a gap in existing data coverage for the state. Observed and Bouguer anomaly data for this regional...
Peter J. Haeussler, Susan M. Karl
2001, Open-File Report 2001-427
This report presents a compilation of 4203 measurements of outcrop structures from part of the Petersburg 1:250,000-scale quadrangle in southeastern Alaska. We collected 1966 measurements, and an additional 2237 unpublished measurements were compiled from field notebooks a from a field mapping effort in the late 1970’s and early 1980’s. These...
Peter J. Haeussler, Susan M. Karl, Keith A. Labay
2001, Open-File Report 2001-428
This report presents a compilation of 3224 measurements of outcrop structures from Wales Group and adjacent strata on Dall and Prince of Wales Islands, southeastern Alaska. We collected 2230 measurements, an additional 344 were digitized from the map of Eberlein and others (1983), and an additional 650 come from the...
David M. Worley, Jack K. Odum, Robert A. Williams, William J. Stephenson
2001, Open-File Report 2001-440
We modified two gasoline-engine-powered earth tampers, commonly used as compressional-(P) wave seismic energy sources for shallow reflection studies, for use as shear(S)-wave energy sources. This new configuration, termed ?Hacker? (horizontal Wacker?), is evaluated as an alternative to the manual sledgehammer typically used in conjunction with a large timber held down...
Robert C. Bucknam, Jeffrey A. Coe, Manuel Mota Chavarria, Jonathan W. Godt, Arthur C. Tarr, Lee-Ann Bradley, Sharon A. Rafferty, Dean Hancock, Richard L. Dart, Margo L. Johnson
2001, Open-File Report 2001-443
The torrential rains that accompanied Hurricane Mitch in October and November of 1998 triggered thousands of landslides in the moderate to steep terrain bordering the Motagua and Polochic Rivers in eastern Guatemala. Using aerial photographs taken between January and March 2000 we mapped all visible landslides larger than about 15 m in minimum dimension in a study area of...
James V. Gardner, Larry A. Mayer, John E. Hughes Clarke, Peter Dartnell, Kenneth J. Sulak
2001, Open-File Report 2001-448
A zone of deep-water reefs is thought to extend from the mid and outer shelf south of Mississippi and Alabama to at least the northwestern Florida shelf off Panama City, Florida (Figure 1, 67kb). The reefs off Mississippi and Alabama are found in water depths of 60 to 120 m...
Douglas M. Morton, Rachel M. Alvarez, Van M. Diep
2001, Open-File Report 2001-449
Open-File Report 01-449 contains a digital geologic map database of the Steele Peak 7.5’ quadrangle, Riverside County, California that includes: ARC/INFO (Environmental Systems Research Institute, http://www.esri.com) version 7.2.1 coverages of the various elements of the geologic map. A Postscript file to plot the geologic map on a topographic base, and containing a...
Douglas M. Morton, Jonathan C. Matti
2001, Open-File Report 2001-450
Open-File Report 01-450 contains a digital geologic map database of the Sunnymead 7.5’ quadrangle, Riverside County, California that includes: ARC/INFO (Environmental Systems Research Institute, http:/www.esri.com) version 7.2.1 coverages of the various elements of the geologic map. A Postscript file to plot the geologic map on a topographic base, containing a Correlation of...
Douglas M. Morton, Brett F. Cox
2001, Open-File Report 2001-451
Open-File Report 01-451 contains a digital geologic map database of the Riverside West 7.5’ quadrangle, Riverside County, California that includes: ARC/INFO (Environmental Systems Research Institute, http://www.esri.com) version 7.2.1 coverages of the various elements of the geologic map. A PostScript file to plot the geologic map on a topographic base, containing a Correlation...
Douglas M. Morton, Brett F. Cox
2001, Open-File Report 2001-452
Open-File Report 01-452 contains a digital geologic map database of the Riverside East 7.5’ quadrangle, Riverside County, California that includes: ARC/INFO Environmental Systems Research Institute (http://www.esri.com) version 7.2.1 coverages of the various elements of the geologic map. A Postscript file to plot the geologic map on a topographic base, containing a Correlation...
Richard B. Wanty, Wayne C. Shanks III, Paul Lamothe, A. L. Meier, Fred Lichte, Paul H. Briggs, Byron R. Berger
2001, Open-File Report 2001-463
Water samples were collected in the Patagonia Mountains in February, 1997. Most of the samples were collected from portals of abandoned mines, or from stream drainages immediately downstream from abandoned mines. Most of the samples have low pH ( 1000 mg/L). Anion composition of...
Natalie R. Sexton, Ayeisha Brinson, Phadrea D. Ponds, Kurt Cline, Berton L. Lamb
2001, Open-File Report 2001-467
What do citizens know about black-tailed prairie dogs, and where do they get their information? When management decisions need to be made regarding an animal such as the black-tailed prairie dog, an understanding of the species and its relationship to humans is necessary. This includes knowing the biology of the...
Douglas M. Morton, F. Harold Weber
2001, Open-File Report 2001-479
Open-File Report 01-479 contains a digital geologic map database of the Lake Mathews 7.5’ quadrangle, Riverside County, California that includes: ARC/INFO (Environmental Systems Research Institute, http://www.esri.com) version 7.2.1 coverages of the various elements of the geologic map. A PostScript file to plot the geologic map on a topographic base, containing a Correlation...
D. E. Boleneus, G. L. Raines, J. D. Causey, A. A. Bookstrom, T. P. Frost, P. C. Hyndman
2001, Open-File Report 2001-501
The weights-of-evidence analysis, a quantitative mineral resource mapping tool, is used to delineate favorable areas for epithermal gold deposits and to predict future exploration activity of the mineral industry for similar deposits in a four-county area (222 x 277 km), including the Okanogan and Colville National Forests of northeastern Washington....
G. F. Koltun
2001, Water-Resources Investigations Report 2001-4256
This report provides data and methods to aid in the hydrologic design or evaluation of impounding reservoirs and side-channel reservoirs used for water supply in Ohio. Data from 117 streamflow-gaging stations throughout Ohio were analyzed by means of nonsequential-mass-curve-analysis techniques to develop relations between storage requirements, water demand, duration, and...
Valerie J. Kelly, Richard P. Hooper, Brent T. Aulenbach, Mary Janet
2001, Water-Resources Investigations Report 2001-4255
This report contains concentrations and annual mass fluxes (loadings) for a broad range of water-quality constituents measured during 1996-2000 as part of the U.S. Geological Survey National Stream Quality Accounting Network (NASQAN). During this period, NASQAN operated a network of 40-42 stations in four of the largest river basins of...
Daniel G. Driscoll, Janet M. Carter
2001, Water-Resources Investigations Report 2001-4226
The Black Hills are an important recharge area for aquifers in the northern Great Plains. The surface-water hydrology of the area is highly influenced by interactions with the Madison and Minnelusa aquifers, including large springs and streamflow loss zones. Defining responses of ground water and streamflow to a variety of...
D. J. Holtschlag, J.A. Koschik
2001, Water-Resources Investigations Report 2001-4135
St. Clair and Detroit Rivers are connecting channels between Lake Huron and Lake Erie in the Great Lakes waterway, and form part of the boundary between the United States and Canada. St. Clair River, the upper connecting channel, drains 222,400 square miles and has an average flow of about 182,000...
Scott V. Mize, Jeffrey R. Deacon
2001, Open-File Report 2000-266
Algal community samples were collected at 15 sites in the Upper Colorado River Basin in Colorado as part of the National Water-Quality Assessment Program during water years 1996-97. Sites sampled were located in two physiographic provinces, the Southern Rocky Mountains and the Colorado Plateaus, and represented agricultural, mining, urban, and...
James V. Gardner, Peter Dartnell
2001, Data Series 72
In the summer of 2000, the U.S. Geological Survey, Pacific Seafloor Mapping Project in cooperation with the National Park Service, and the Center for Coastal and Ocean Mapping, University of New Hampshire used a state-of-the-art multibeam sonar system to collect high-resolution bathymetry and calibrated, co-registered acoustic backscatter to support both...
Ryan F. Thompson
2001, Water-Resources Investigations Report 2001-4219
In 1994, the U.S. Geological Survey, in cooperation with the Sisseton-Wahpeton Sioux Tribe; Roberts County; and the South Dakota Department of Environment and Natural Resources, Geological Survey Program, began a 6-year investigation to describe and quantify the water resources of the area within the 1867 boundary of the Lake Traverse...