Elemental analyses of modern dust in southern Nevada and California
M.C. Reheis, J. R. Budahn, P. J. Lamothe
1999, Open-File Report 99-531
Selected samples of modern dust collected in marble traps at sites in southern Nevada and California (Reheis and Kihl, 1995; Reheis, 1997) have been analyzed for elemental composition using instrumental neutron activation analysis (INAA) and inductively coupled plasma atomic emission spectroscopy (ICP-AES) and inductively coupled plasma mass spectroscopy (ICP-MS). For...
Notes on numerical reliability of several statistical analysis programs
J.M. Landwehr, Gary D. Tasker
1999, Open-File Report 99-95
This report presents a benchmark analysis of several statistical analysis programs currently in use in the USGS. The benchmark consists of a comparison between the values provided by a statistical analysis program for variables in the reference data set ANASTY and their known or calculated theoretical values. The ANASTY data...
Construction and calibration of numerical ground-water-flow models of the western half of the Milford-Souhegan glacial-drift aquifer, Milford, New Hampshire
P. T. Harte, R. H. Flynn, Thomas J. Mack
1999, Open-File Report 99-462
No abstract available....
Geologic evaluation of the Oasis Valley basin, Nye County, Nevada
C. J. Fridrich, S.A. Minor, E. A. Mankinen
1999, Open-File Report 99-533-A
Geologic and hydrologic data for the municipal solid waste landfill facility, U.S. Army Air Defense Artillery Center and Fort Bliss, El Paso County, Texas
Cynthia G. Abeyta, P. F. Frenzel
1999, Open-File Report 99-271
Geologic and hydrologic data for the Municipal Solid Waste Landfill Facility on the U.S. Army Air Defense Artillery Center and Fort Bliss in El Paso County, Texas, were collected by the U.S. Geological Survey in cooperation with the U.S. Department of the Army. The 106.03-acre landfill has been in operation...
Digital mining claim density map for federal lands in Washington: 1996
Paul C. Hyndman, Harry W. Campbell
1999, Open-File Report 99-408
This report describes a digital map generated by the U.S. Geological Survey (USGS) to provide digital spatial mining claim density information for federal lands in Washington as of March 1997. Mining claim data is earth science information deemed to be relevant to the assessment of historic, current, and future ecological,...
Sun-illuminated sea floor topographic maps and perspective-view imagery of quadrangles 1-18, Stellwagen Bank National Marine Sanctuary off Boston, Massachusetts
Page C. Valentine, Tanya S. Unger, Jessica L. Baker, Christopher F. Polloni
1999, Open-File Report 99-363
No abstract available....
Geologic datasets for weights-of-evidence analysis in northeast Washington; 2, Mineral databases
D. E. Boleneus
1999, Open-File Report 99-384-B
Geologic datasets for weights-of-evidence analysis in northeast Washington: 2. Mineral databases
D. E. Boleneus
1999, Open-File Report 99-384-A
Digital mineral databases are necessary to carry out weights-of-evidence modeling of mineral resources for epithermal gold and carbonate-hosted lead-zinc deposits in northeast Washington. This report describes spreadsheet tables consisting of: 1) training sites for epithermal gold, 2) placer gold sites, 3) training sites for carbonate-hosted lead-zinc, and 4) small lead-zinc...
Geologic map of the Green Bay 7.5-minute quadrangle, Prince Edward County, Virginia
John D. Peper, Paul C. Hackley
1999, Open-File Report 99-423
No abstract available....
Streamflow information for the next century, a plan for the National Streamflow Information Program of the U.S. Geological Survey
Water Resources Division, U.S. Geological Survey
1999, Open-File Report 99-456
Bedrock geologic map of the Windham quadrangle, Rockingham and Hillsborough counties, New Hampshire
G. J. Walsh, S. F. Clark Jr.
1999, Open-File Report 99-8
No abstract available....
Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory-Comparison of a nitric acid in-bottle digestion procedure to other whole-water digestion procedures
John R. Garbarino, Gerald L. Hoffman
1999, Open-File Report 99-94
A hydrochloric acid in-bottle digestion procedure is used to partially digest wholewater samples prior to determining recoverable elements by various analytical methods. The use of hydrochloric acid is problematic for some methods of analysis because of spectral interference. The inbottle digestion procedure has been modified to eliminate such interference by using nitric acid instead of hydrochloric acid in the digestion....
Geologic maps and block diagrams of the Barite Hill gold-silver deposit and vicinity, South Carolina and Georgia
Sandra H. B. Clark
1999, Open-File Report 99-148-B
Petroleum geology and resources of the Middle Caspian Basin (South Mangyshlak, Terek-Caspian, and Stavropol-Prikumsk Petroleum Systems)
G. F. Ulmishek
1999, Open-File Report 99-50-B
NO ABSTRACT - The Open-File Report 99-50-B is superceded by USGS Bulletin 2201-A, Petroleum Geology and Resources of the Middle Caspian Basin, Former Soviet Union....
Determination of pre-mining geochemical conditions and paleoecology in the Animas River Watershed, Colorado
S. E. Church, D.L. Fey, E. M. Brouwers, C. W. Holmes, Robert Blair
1999, Open-File Report 99-38
Determination of the pre-mining geochemical baseline in bed sediments and the paleoecology in a watershed impacted by historical mining activity is of utmost importance in establishing watershed restoration goals. We have approached this problem in the Animas River watershed using geomorphologic mapping methods to identify old pre-mining sediments. A systematic evaluation of possible sites...
Water sediment, and nutrient budgets, and bathymetric survey of Old and New Gillespie Lakes, Macoupin County, Illinois, May 1996-April 1997; with a discussion of lake-management practices
Gary P. Johnson
1999, Open-File Report 99-69
The Gillespie Lakes system serves as a drinking water source for the town of Gillespie, Illinois, and is a major recreational focus for the area. As part of an investigation of a concern that the lakes are being adversely affected by excessive sediment and nutrient in flows, this report presents...
Method for Examination and Documentation of Basic Information and Metadata from Published Reports Relevant to the Study of Stormwater Runoff Quality
Shannon G. Dionne, Gregory E. Granato, Cameron K. Tana
1999, Open-File Report 99-254
A readily accessible archive of information that is valid, current, and technically defensible is needed to make informed highway-planning, design, and management decisions. The National Highway Runoff Water-Quality Data and Methodology Synthesis (NDAMS) is a cataloging and assessment of the documentation of information relevant to highway-runoff water quality available in...
Modifications to the diffusion analogy surface-water flow model (DAFLOW) for coupling to the modular finite-difference ground-water flow model (MODFLOW)
H.E. Jobson, A.W. Harbaugh
1999, Open-File Report 99-217
Index of hydrologic characteristics and data resources for the Gwynns Falls watershed, Baltimore County and Baltimore City, Maryland
Edward J. Doheny
1999, Open-File Report 99-213
The Gwynns Falls watershed has been selected as the primary study area for the Baltimore Ecosystem Study, as part of the National Science Foundation?s Long-Term Ecological Research program. Because the Baltimore Ecosystem Study will be investigating long-term hydrologic changes in the Gwynns Falls watershed, a compilation of existing data resources...
Ground-water quality data from the Abbotsford-Sumas aquifer of southwestern British Columbia and northwestern Washington State, February 1997
S.E. Cox, Hugh Liebscher
1999, Open-File Report 99-244
No abstract available....
Geologic map of the Seldovia quadrangle, south-central Alaska
Dwight Bradley, Timothy M. Kusky, Peter J. Haeussler, Susan M. Karl, D. Thomas Donley
1999, Open-File Report 99-18
This is a 1:250,000-scale map of the bedrock geology of the Seldovia quadrangle, south-central Alaska. The map area covers the southwestern end of the Kenai Peninsula, including the Kenai Lowlands and Kenai Mountains, on either side of Kachemak Bay. The waters of Cook Inlet cover roughly half of the map...
Volcano hazards in the Mount Jefferson region, Oregon
Joseph S. Walder, Cynthia A. Gardner, Richard M. Conrey, Bruce J. Fisher, Steven P. Schilling
1999, Open-File Report 99-24
Mount Jefferson is a prominent feature of the landscape seen from highways east and west of the Cascades. Mount Jefferson (one of thirteen major volcanic centers in the Cascade Range) has erupted repeatedly for hundreds of thousands of years, with its last eruptive episode during the last major glaciation which...
Stream and aquifer biology of south-central Texas — A literature review, 1973-97
Robert T. Ourso, C. E. Hornig
1999, Open-File Report 99-243
This report summarizes in table format 32 aquatic vertebrate (primarily fish), 54 aquatic invertebrate, and 13 aquatic plant studies available for the area of the South-Central Texas study unit of the U.S. Geological Survey National Water-Quality Assessment. The studies, published mostly during 1973–97, pertain to the Guadalupe, San Antonio, and...
Sources of geospatial data for central and western New York, 1998
S.C. Komor
1999, Open-File Report 99-191
