Digital mining claim density map for federal lands in Oregon: 1996
Paul C. Hyndman, Harry W. Campbell
1999, Open-File Report 99-541
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 Oregon as of March 1997. Mining claim data is earth science information deemed to be relevant to the assessment of historic, current, and future ecological,...
Aerial gamma-ray surveys of the conterminous United States and Alaska
Joseph S. Duval
1999, Open-File Report 99-562-L
No abstract available....
Digital mining claim density map for federal lands in Wyoming: 1996
Paul C. Hyndman, Harry W. Campbell
1999, Open-File Report 99-542
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 Wyoming as of March 1997. Mining claim data is earth science information deemed to be relevant to the assessment of historic, current, and future ecological,...
40Ar/39Ar age-spectrum data for amphibole, muscovite, biotite, and K-feldspar samples from metamorphic rocks in the Blue Ridge anticlinorium, northern Virginia
Michael J. Kunk, W.C. Burton
1999, Open-File Report 99-552
Land and federal mineral ownership coverage for southern Wyoming
L. H. Biewick, T.J. Mercier, T.T. Saber, S.R. Urbanowski, Larry Neasloney
1999, Open-File Report 99-553-C
This Arc/Info coverage contains land status and Federal mineral ownership for approximately 37,800 square miles in southern Wyoming. The polygon coverage (which is also provided here as a shapefile) contains two attributes of ownership information for each polygon. One attribute indicates where the surface is State owned, privately owned, or,...
Land and federal mineral ownership coverage for northwestern Colorado
L. H. Biewick, T.J. Mercier, Pam Levitt, Doug Deikman, Bob Vlahos
1999, Open-File Report 99-553-A
This Arc/Info coverage contains land status and Federal mineral ownership for approximately 26,800 square miles in northwestern Colorado. The polygon coverage (which is also provided here as a shapefile) contains two attributes of ownership information for each polygon. One attribute indicates where the surface is State owned, privately owned,...
Preliminary digital geologic map of the Penokean (early Proterozoic) continental margin in northern Michigan and Wisconsin
W.F. Cannon, Doug Ottke
1999, Open-File Report 99-547
The data on this CD consist of geographic information system (GIS) coverages and tabular data on the geology of Early Proterozoic and Archean rocks in part of the Early Proterozoic Penokean orogeny. The map emphasizes metasedimentary and metavolcanic rocks that were deposited along the southern margin of the Superior...
A case for site acclimation in the reintroduction of the endangered razorback sucker (Xyrauchen texanus)
Gordon Mueller, D.K. Foster
1999, Open-File Report 99-110
Analysis of geophysical logs, at North Penn Area 6 Superfund Site, Lansdale, Montgomery County, Pennsylvania
Randall W. Conger
1999, Open-File Report 99-271-A
The U.S. Geological Survey (USGS), as part of technical assistance to the U.S. Environmental Protection Agency (USEPA), collected borehole geophysical log data in 34 industrial, commercial, and public supply wells and 28 monitor wells at the North Penn Area 6 Superfund Site, in Lansdale, Pa., from August 22, 1995, through...
Preliminary report on deposit models for sand and gravel in the Cache la Poudre River valley
W. H. Langer, D. A. Lindsey
1999, Open-File Report 99-587
The stratigraphy, sedimentary features, and physical characteristics of gravel deposits in the Cache la Poudre River valley were studied to establish geologic models for these deposits. Because most of the gravel mined in the valley is beneath the low terraces and floodplain, the quality of these deposits for aggregate was studied in...
Description of the pelagic zooplankton and fish communities of Lakes Powell and Mead
Gordon Mueller, M.J. Horn
1999, Open-File Report 99-109
McVCO handbook 1999
P.J. McChesney
1999, Open-File Report 99-361
McVCO is a microcontroller-based frequency generator that replaces the voltage controlled oscillator (VCO) used in the analog telemetry of seismic data. It accepts low-level signals from a seismometer and produces a frequency modulated subcarrier suitable for radio or telephone links to a data collection site. McVCO was designed for the purpose...
Procedures and computer programs for telescopic mesh refinement using MODFLOW
Stanley A. Leake, David V. Claar
1999, Open-File Report 99-238
Ground-water models are commonly used to evaluate flow systems in areas that are small relative to entire aquifer systems. In many of these analyses, simulation of the entire flow system is not desirable or will not allow sufficient detail in the area of interest. The procedure of telescopic mesh refinement allows use of...
Aerial gamma-ray surveys of the conterminous United States and Alaska
Joseph S. Duval
1999, Open-File Report 99-562-A
No abstract available....
Digital bedrock geologic map of the Ashland and northern part of the Ironwood 30' X 60' quadrangles, Wisconsin, and Michigan
W.F. Cannon, L. G. Woodruff, S. W. Nicholson, C. A. Hedgman, R. Barber-Delach
1999, Open-File Report 99-546
No abstract available....
Chemical and radiochemical constituents in water from wells in the vicinity of the Naval Reactors Facility, Idaho National Engineering and Environmental Laboratory, Idaho, 1996
L.L. Knobel, R. C. Bartholomay, B.J. Tucker, L. M. Williams
1999, Open-File Report 99-272
Inventory of selected freshwater-ecology studies from the New England Coastal Basins (Maine, New Hampshire, Massachusetts, Rhode Island), 1937-97
Steven Tessler, J.F. Coles, K.M. Beaulieu
1999, Open-File Report 99-467
An inventory of published studies that address freshwater ecology within the New England Coastal Basins was created through computerized bibliographic literature searches and consultation with environmental agencies. Assembled papers were classified to associate their contents with one or more states, ecoregions, river basins, and ecological topics. Full references and their...
Geologic maps of the Mount Guyot, Luftee Knob, and Cove Creek Gap 7.5-minute quadrangles, Great Smoky Mountains National Park, Tennessee and North Carolina
A. P. Schultz
1999, Open-File Report 99-536
Hydrogeologic and water-quality data for the East Management Unit of Dover Air Force Base, Kent County, Delaware, 1995-96
J.E. Beman, D. J. Phelan, J.E. Dysart, V. C. Smith
1999, Open-File Report 99-253
Alaska digital aeromagnetic database description
G. G. Connard, R. W. Saltus, P. L. Hill, L. Carlson, B. Milicevic
1999, Open-File Report 99-503
Northwest Geophysical Associates, Inc. (NGA) was contracted by the U.S. Geological Survey (USGS) to construct a database containing original aeromagnotic data (in digital form) from surveys, maps and grids for the State of Alaska from existing public-domain magnetic data. This database facilitates thedetailed study and interpretation of aeromagnetic data along...
The Silent Canyon caldera complex — A three-dimensional model based on drill-hole stratigraphy and gravity inversion
Edwin H. McKee, Thomas G. Hildenbrand, Megan L. Anderson, Peter D. Rowley, David A. Sawyer
1999, Open-File Report 99-555
The structural framework of Pahute Mesa, Nevada, is dominated by the Silent Canyon caldera complex, a buried, multiple collapse caldera complex. Using the boundary surface between low density Tertiary volcanogenic rocks and denser granitic and weakly metamorphosed sedimentary rocks (basement) as the outer fault surfaces for the modeled collapse caldera...
Loch Vale Watershed Project quality assurance report, 1995-1998
E.J. Allstott, Michael A. Bashkin, Jill Baron
1999, Open-File Report 99-111
The Loch Vale Watershed (LVWS) project was initiated in 1980 by the National Park Service with funding from the Aquatic Effects Research Program of the National Acid Precipitation Assessment Program. Initial research objectives were to understand the processes that would either mitigate or accelerate the effects of pollution on soil...
Effect of baseline corrections on response spectra for two recordings of the 1999 Chi-Chi, Taiwan, earthquake
David M. Boore
1999, Open-File Report 99-545
Displacements derived from the accelerogram recordings of the 1999 Chi-Chi, Taiwan earthquake at stations TCU078 and TCU129 show drifts when only a simple baseline derived from the pre-event portion of the record is removed from the records. The appearance of the velocity and displacement records suggests that changes in the...
Selected hydrologic data from the Cedar Rapids area, Linn County, Iowa, April 1996 through March 1999
R.A. Boyd, R.L. Kuzniar, P.M. Schulmeyer
1999, Open-File Report 99-461
The City of Cedar Rapids, Iowa obtains its municipal water supply from four well fields along the Cedar River. The wells are completed at depths of about 60 to 80 feet in a shallow alluvial aquifer adjacent to the Cedar River. The City of Cedar Rapids and the U.S. Geological...
Land and mineral ownership coverage for the Uinta Basin, Wasatch Plateau and surrounding areas, northeastern Utah
L. H. Biewick, G. A. Green
1999, Open-File Report 99-553-B
This Arc/Info coverage contains land status and Federal and State mineral ownership for approximately 25,900 square miles in northeastern Utah. The polygon coverage (which is also provided here as a shapefile) contains three attributes of ownership information for each polygon. One attribute indicates whether the surface is State owned, privately...
