Digital mining claim density map for federal lands in Nevada: 1996
Paul C. Hyndman, Harry W. Campbell
1999, Open-File Report 99-540
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 Nevada as of March 1997. Mining claim data is earth science information deemed to be relevant to the assessment of historic, current, and future ecological,...
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-D
No abstract available....
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,...
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...
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...
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...
Description of the pelagic zooplankton and fish communities of Lakes Powell and Mead
Gordon Mueller, M.J. Horn
1999, Open-File Report 99-109
Aerial gamma-ray surveys of the conterminous United States and Alaska
Joseph S. Duval
1999, Open-File Report 99-562-C
No abstract available....
Aerial gamma-ray surveys of the conterminous United States and Alaska
Joseph S. Duval
1999, Open-File Report 99-562-B
No abstract available....
Aerial gamma-ray surveys of the conterminous United States and Alaska
Joseph S. Duval
1999, Open-File Report 99-562-M
No abstract available....
Digitized aeromagnetic datasets for the conterminous United States, Hawaii, and Puerto Rico
Water Resources Division, U.S. Geological Survey
1999, Open-File Report 99-557
No abstract available....
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
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...
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
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...
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
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,...
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,...
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
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...
Geochemical data for environmental studies of mercury mines in Nevada
John E. Gray, Monique G. Adams, James G. Crock, Peter M. Theodorakos
1999, Open-File Report 99-576
