David Halsing, Richard Bernknopf
2002, Open-File Report 2002-67
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Page 2933, results 73301 - 73325
Publication Extents
Not all publications have extents, not all extents are completely accurateJohn P. Hoffmann, Marcella A. Ripich, Kevin M. Ellett
2002, Water-Resources Investigations Report 2001-4257
Characteristics of the stream-channel and basin-fill deposits beneath a 12-mile reach of Rillito Creek, Pima County, Arizona, were obtained to describe the geohydrologic system. The findings presented here are part of a larger project to improve the understanding of recharge processes beneath ephemeral streams. The stream-channel deposits, which range in thickness...
Mark E. Gettings
2002, Open-File Report 2002-99
High resolution aeromagnetic survey data flown at 250 m above the terrain and 250 m line spacing over the Santa Cruz Valley and the surrounding Tumacacori, Patagonia, and Santa Rita Mountains has been interpreted by correlation of the magnetic anomaly field and various derivative maps with geologic maps. Measurements of...
Aldo V. Vecchia
2002, Water-Resources Investigations Report 2002-4042
From 1993 to 2001, Devils Lake rose more than 25 feet, flooding farmland, roads, and structures around the lake and causing more than $400 million in damages in the Devils Lake Basin. In July 2001, the level of Devils Lake was at 1,448.0 feet above sea level1, which was...
John H. Stewart, Forrest G. Poole
2002, Open-File Report 2002-97
This compilation is an inventory of all known outcrops of Neoproterozoic and Paleozoic strata in Sonora, Mexico. We have not attempted an interpretation of the regional stratigraphic or structural setting of the strata. Brief summaries of the stratigraphic setting of the Sonora rocks are given in Poole and Hayes (1971),...
Steven D. Zaugg, Steven G. Smith, Michael P. Schroeder, Larry B. Barber, Mark R. Burkhardt
2002, Water-Resources Investigations Report 2001-4186
A method for the determination of 67 compounds typically found in domestic and industrial wastewater is described. The method was developed in response to increasing concern over the impact of endocrine-disrupting chemicals in wastewater on aquatic organisms. This method also may be useful for evaluating the impact of combined sanitary...
Joseph P. Capesius, Ted W. Lehman
2002, Water-Resources Investigations Report 2001-4209
In Maricopa County, Arizona, 10 sites on seven streams were studied to determine the lateral and vertical change of the channel. Channel change was studied over time scales ranging from individual floods to decades using cross-section surveys, discharge measurements, changes in the point of zero flow, and repeat photography. All...
M.E. Field, S.A. Cochran, K.R. Evans
2002, Fact Sheet 025-02
Coral reefs are home to 25% of all marine species. However, the tiny colonial animals that build these intricate limestone masses are dying at alarming rates. If this trend continues, in 20 years the living corals on many of the world's reefs will be dead and the ecosystems that depend...
F. William Simonds
2002, Water-Resources Investigations Report 2001-4252
A three-dimensional finite-difference steady-state ground-water flow model was developed to simulate hydraulic conditions at the Area 6 Landfill, Naval Air Station Whidbey Island, near Oak Harbor, Washington. Remediation efforts were started in 1995 in an attempt to contain trichloroethene and other contaminants in the ground water. The model was developed...
C.M. Halpenny, R. M. Kocan, J. R. Winton, J.A. Perry, P.K. Hershberger
2002, Fish Health Newsletter 17-20
High incidences of Ichthyophonus hoferi, a parasite primarily of marine and estuarine fishes, have recently been reported in rockfishes and Pacific herring from the eastern North Pacific (Kent et al 2001, Hershberger et al 2002). Taxonomic position of I. hoferi remains unresolved, but recent phylogenetic studies have grouped the organism...
James C. Ebbert, Sandra S. Embrey
2002, Water-Resources Investigations Report 2001-4211
The occurrence, distribution, and transport of pesticides in surface water of the Yakima River Basin were assessed using data collected during 19992000 as part of the U.S. Geological Survey National Water-Quality Assessment (NAWQA) Program. Samples were collected at 34 sites located throughout the basin in August 1999 using a Lagrangian...
M.A. Stewart, T.N. Bhatt, R.J. Fennema, D.V. Fitterman
2002, Open-File Report 2002-59
Introduction This report describes the history of roads through the Lower Glades of Everglades National Park, Florida and their influence on salinity intrusion. The chronology that lead to this work is interesting. The U.S. Geological Survey flew a series of helicopter electromagnetic surveys over portions of Everglades National Park to...
Jeffrey D. Phillips
2002, Open-File Report 2002-98
In 1997, the U.S. Geological Survey (USGS) contracted with Sial Geosciences Inc. for a detailed aeromagnetic survey of the Santa Cruz basin and Patagonia Mountains area of south-central Arizona. The contractor's Operational Report is included as an Appendix in this report. This section describes the data processing performed by the...
D.B. Yager, D. J. Bove
2002, Miscellaneous Field Studies Map 2377
This dataset represents geology compiled for the upper Animas River Watershed near Silverton, Colorado. The source data used are derived from 1:24,000, 1:20,000, 1:48,000 and 1:250,000-scale geologic maps by geologists who have worked in this area since the early 1960's....
Jared D. Abraham, Craig Moulton, Philip J. Brown II
2002, Open-File Report 2002-63
In October 2001, the U.S. Geological Survey conducted borehole radar surveys of an oil injection experiment at the Colorado School of Mines (CSM), in Golden Colorado using the prototype U.S. Geological Survey (USGS)-developed directional borehole radar system (DBOR). A explanation of the system can be...
Douglas M. Morton, C. H. Gray Jr., Kelly R. Bovard, Michael Dawson
2002, Open-File Report 2002-22
Open-File Report 02-22 contains a digital geologic map database of the Corona North 7.5’ quadrangle, Riverside and San Bernardino Counties, 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,...
Alan R. Nelson, Samuel Y. Johnson, Ray E. Wells, Silvio K. Pezzopane, Harvey M. Kelsey, Brian L. Sherrod, Lee-Ann Bradley, Rick D. Koehler III, Robert C. Bucknam, Ralph Haugerud, William T. Laprade
2002, Open-File Report 2002-60
No abstract available. ...
Nancy B. Rybicki, Justin T. Reel, Patricia T. Gammon, Mary Keith Garrett
2002, Open-File Report 2002-38
No abstract available....
Philip J. Zarriello
2002, Open-File Report 2001-483
Management alternatives that could help mitigate the effects of water withdrawals on streamflow in the Ipswich River Basin were evaluated by simulation with a calibrated Hydrologic Simulation Program--Fortran (HSPF) model. The effects of management alternatives on streamflow were simulated for a 35-year period (1961-95). Most alternatives examined increased low flows...
David P. Hill, Daniel Dzurisin, William L. Ellsworth, Elliot T. Endo, D. L. Galloway, Terry M. Gerlach, Malcolm S.J. Johnston, John O. Langbein, Ken A. McGee, C. Dan Miller, David Oppenheimer, Michael L. Sorey
2002, Bulletin 2185
No abstract available....
Lopaka Lee, Martin B. Goldhaber
2002, Open-File Report 2002-55
This report is a product of a U.S. Geological Survey investigation that is focused on characterizing the potential environmental impacts of lead-zinc mining within the Doniphan/Eleven Point ranger district of the Mark Twain national forest. The elemental concentrations of iron (Fe), arsenic (As), cadmium (Cd), cobalt (Co), copper (Cu), chromium...
S.S. Dashevsky
2002, Open-File Report 2002-54
No abstract available....
Michele L.W. Tuttle, Martin B. Goldhaber, Leslie F. Ruppert, James C. Hower
2002, Open-File Report 2002-28
Arsenic (As) enrichment in coal and stream sediments has been documented in the southern Appalachian basin (see Goldhaber and others, submitted) and is attributed to interaction of rocks and coal with metamorphic fluids generated during the Allegheny Orogeny (late Paleozoic). Similarly derived fluids are expected to affect the coal and...
Peter E. Church, Forest P. Lyford, Scott Clifford
2002, Open-File Report 2002-35
A plume of volatile organic compounds in ground water extends northward from the former Nyanza Property in Ashland, Massachusetts, and discharges into the Sudbury River and the upstream end of Mill Pond. A network of polyethylene-membrane passive-vapor-diffusion samplers was installed in February 2001 to help define the lateral extent of...
Andre S. Ellis, Thomas M. Johnson, Thomas D. Bullen
2002, Science (295) 2060-2062
Measurements of chromium (Cr) stable-isotope fractionation in laboratory experiments and natural waters show that lighter isotopes reacted preferentially during Cr(VI) reduction by magnetite and sediments. The 53Cr/52Cr ratio of the product was 3.4 ± 0.1 per mil less than that of the reactant.53Cr/52Cr shifts in water samples indicate the extent...