Sediment-deposition rates and organic compounds in bottom sediment at four sites in Lake Mead, Nevada, May 1998
K.J. Covay, D.A. Beck
2001, Open-File Report 2001-282
In May 1998 the U.S. Geological Survey, in cooperation with the University of Nevada, Las Vegas, investigated rates of sediment deposition and concentrations of selected synthetic organic compounds at four sites in Lake Mead. Sediment cores were extracted from two sites (one shallow and one deep) in Las Vegas Bay,...
Concentrations and loads of cadmium, lead, zinc, and nutrients measured during the 1999 water year within the Spokane River basin, Idaho and Washington
P. F. Woods
2001, Open-File Report 2000-441
The Remedial Investigation/Feasibility Study conducted by the U.S. Environmental Protection Agency within the Spokane River Basin of northern Idaho and eastern Washington included extensive data-collection activities to determine the nature and extent of trace-element contaminationwithin the basin. The U.S. Geological Survey designed and operated a streamflow and water quality monitoring network...
Benthic flux of dissolved nickel into the water column of south San Francisco Bay
B.R. Topping, J.S. Kuwabara, Francis Parcheso, S.W. Hager, A.J. Arnsberg, Fred Murphy
2001, Open-File Report 2001-89
Field and laboratory studies were conducted between April, 1998 and May, 1999 to provide the first direct measurements of the benthic flux of dissolved (0.2-micron filtered) nickel between the bottom sediment and water column at three sites in the southern component of San Francisco Bay (South Bay), California. Dissolved nickel...
Evaluacion de la estabilidad de un dique de deslizamiento de tierra inducido por el Huracan Mitch en El Rio La Lima, Sierra de las Minas, Guatemala oriental
Robert L. Schuster, Robert C. Bucknam, Manuel Antonio Mota
2001, Open-File Report 2001-120
No abstract available....
Potentiometric surface of the upper Floridan aquifer in the St. Johns River Water Management District and vicinity, Florida, May 2001
Leel Knowles Jr.
2001, Open-File Report 2001-313
No abstract available....
Lithologic and ground-water-quality data collected using Hoverprobe drilling techniques at the West Branch Canal Creek wetland, Aberdeen Proving Ground, Maryland, April-May 2000
Daniel J. Phelan, Michael P. Senus, Lisa D. Olsen
2001, Open-File Report 2000-446
This report presents lithologic and groundwater- quality data collected during April and May 2000 in the remote areas of the tidal wetland of West Branch Canal Creek, Aberdeen Proving Ground, Maryland. Contamination of the Canal Creek aquifer with volatile organic compounds has been documented in previous investigations of the area. This study was conducted to investigate areas that...
Georgia aeromagnetic and gravity maps and data: a web site for distribution of data
David L. Daniels
2001, Open-File Report 2001-106
A preliminary finite-element analysis of wave propagation in a multistory building
William Z. Savage, Erdal Safak
2001, Open-File Report 2001-57
1:100,000-scale topographic contours derived from digital elevation models, San Francisco Bay region, California: a digital database
Heather M. Wright, Carl M. Wentworth
2001, Open-File Report 2001-101
This report presents a consistent set of 1:100,000-scale vector topographic contours for all eleven 30x60-minute quadrangles in the San Francisco Bay region for use in visualizing the topography and preparing maps of the region. The contours were prepared by contouring an areally continuous 30-m altitude grid (National Elevation Dataset, Jan.,...
Surface water quality-assurance plan for the Hawaii District of the U. S. Geological Survey
R. A. Fontaine
2001, Open-File Report 2001-75
This District Surface Water Quality-Assurance Plan documents the standards, policies, and procedures used by the Hawaii District for activities related to the collection, processing, storage, analysis, and publication of surface-water data....
Volcanism in national parks: summary of the workshop convened by the U.S. Geological Survey and National Park Service, 26-29 September 2000, Redding, California
Steven R. Brantley, Lindsay McClelland
Marianne Guffanti, editor(s)
2001, Open-File Report 2001-435
Spectacular volcanic scenery and features were the inspiration for creating many of our national parks and monuments and continue to enhance the visitor experience today (Table 1). At the same time, several of these parks include active and potentially active volcanoes that could pose serious hazards - earthquakes, mudflows, and...
Potentiometric surface of the upper Floridan aquifer in the St. Johns River Water Management District and vicinity, Florida, September 2000
Leel Knowles Jr.
2001, Open-File Report 2001-160
No abstract available....
Concentrations and loads of cadmium, zinc, and lead in the main stem Coeur d'Alene River, Idaho—March, June, September, and October 1999
P. F. Woods
2001, Open-File Report 2001-34
The Remedial Investigation/Feasibility Study conducted by the U.S. Environmental Protection Agency within the Spokane River Basin of northern Idaho and eastern Washington included extensive data-collection activities in numerous studies to determine the nature and extent of trace-element contamination within the basin. The objective of this particular study was to improve...
Paleoliquefaction studies in continental setting; geologic and geotechnical factors in interpretations and back-analysis
Stephen F. Obermeier, Eric C. Pond, Scott M. Olson, Russell A. Green, Timothy D. Stark, James K. Mitchell
2001, Open-File Report 2001-29
Paleoliquefaction research in the last 15 years has greatly improved our ability to interpret the paleoseismic record throughout some large geographic areas, especially in regions of infrequent large earthquakes. Paleoliquefaction studies have been used extensively in the central and eastern U.S. to assess seismic hazards, and could be used elsewhere...
Fish-community composition in Otselic River, in the vicinity of Whitney Point Lake, Broome and Cortland counties, New York, 2000
R.A. Brightbill, Michael D. Bilger
2001, Open-File Report 2001-78
The U.S. Army Corps of Engineers, Baltimore District, has been conducting biological surveys of the inflow and outflow streams of Whitney Point Lake since the early 1980's. These surveys are made to identify possible detrimental effects as well as benefits of the reservoir and to better understand the aquatic communities...
Surficial geology and distribution of post-impoundment sediment in Las Vegas Bay, Lake Mead
David C. Twichell, VeeAnn A. Cross, Mark J. Rudin, Kenneth F. Parolski, Richard R. Rendigs
2001, Open-File Report 2001-70
Sidescan sonar imagery and seismic-reflection profiles were collected in the northwestern part of Las Vegas Bay to map the distribution and volume of sediment that has accumulated in this part of Lake Mead since impoundment. The mapping suggests that three ephemeral streams are the primary source of this sediment, and...
Digital database of mining-related features at selected historic and active phosphate mines, Bannock, Bear Lake, Bingham, and Caribou counties, Idaho
J. Douglas Causey, Phillip R. Moyle
2001, Open-File Report 2001-142
This report provides a description of data and processes used to produce a spatial database that delineates mining-related features in areas of historic and active phosphate mining in the core of the southeastern Idaho phosphate resource area. The data have varying degrees of accuracy and attribution detail. Classification of areas...
Compilation of various geologic time scales
Anna B. Wilson
2001, Open-File Report 2001-52
Molluscan fauna from core 25B, Whipray Basin, central Florida Bay, Everglades National Park
Carleigh A. Trappe, G. Lynn Brewster-Wingard
2001, Open-File Report 2001-143
Molluscan assemblages preserved in an 80-cm core from Whipray Basin in central Florida Bay, Everglades National Park, illustrate changes in the environmental conditions within the basin over the last two centuries. Salinity remained polyhaline to euhaline throughout the time of deposition (1800-1997), with alternating periods of stability and increased fluctuations. Since 1800, a Brachidontes...
Inventory of mines and mining-related facilities in Idaho and western Montana active from 1997 through 2000
Gregory T. Spanski
2001, Open-File Report 2001-129
Anchorage Urban Region Aeromagnetics (AURA) Project — Preliminary geophysical results
R. W. Saltus, Peter J. Haeussler, R. E. Bracken, J. P. Doucette, R.C. Jachens
2001, Open-File Report 2001-85
No abstract available....
Geochemical baseline studies and relations between water quality and streamflow in the Upper Blackfoot watershed, Montana: Data for July 1997-December 1998
Sonia A. Nagorski, Johnnie N. Moore, David B. Smith
2001, Open-File Report 2001-59
We used ultraclean sampling techniques to study the solute (operationally defined as <0.2 ?m) surface water geochemistry at five sites along the Upper Blackfoot River and four sites along the Landers Fork, some in more detail and more regularly than others. We collected samples also from Hogum Creek, a tributary to the Blackfoot,...
New Mexico aeromagnetic and gravity maps and data: a web site for distribution of data
Robert P. Kucks, Patricia L. Hill, Charles E. Heywood
2001, Open-File Report 2001-61
Analytical data for waters of the Harvard Open Pit, Jamestown Mine, Tuolumne County, California, March 1998-September 1999
R. P. Ashley, K. S. Savage
2001, Open-File Report 2001-74
The Jamestown mine is located in the Jamestown mining district in western Tuolumne County, California (see Fig. 1). This district is one of many located on or near the Melones fault zone, a major regional suture in the Sierra Nevada foothills. The districts along the Melones fault comprise the Mother...
Fish-community composition in Canacadea Creek, in the vicinity of Almond Lake, Allegany and Steuben counties, New York, 2000
R.A. Brightbill, Michael D. Bilger
2001, Open-File Report 2001-79
The U.S. Army Corps of Engineers, Baltimore District, has been conducting biological surveys of the inflow and outflow streams of Almond Lake since the early 1980's. These surveys are made to identify possible detrimental effects as well as benefits of the reservoir and to better understand the aquatic communities in...
