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...
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
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...
Geophysical framework of the southwestern Nevada volcanic field and hydrogeologic implications
V.J. Grauch, David A. Sawyer, Chris J. Fridrich, Mark R. Hudson
1999, Professional Paper 1608
Gravity and magnetic data, when integrated with other geophysical, geological, and rock-property data, provide a regional framework to view the subsurface geology in the southwestern Nevada volcanic field. The region has been loosely divided into six domains based on structural style and overall geophysical character. For each domain, the subsurface...
Aerial gamma-ray surveys of the conterminous United States and Alaska
Joseph S. Duval
1999, Open-File Report 99-562-D
No abstract available....
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,...
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 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,...
Aerial gamma-ray surveys of the conterminous United States and Alaska
Joseph S. Duval
1999, Open-File Report 99-562-L
No abstract available....
Ground-water occurrence and contribution to streamflow, northeast Maui, Hawaii
Stephen B. Gingerich
1999, Water-Resources Investigations Report 99-4090
The study area lies on the northern flank of theEast Maui Volcano (Haleakala) and covers about129 square miles between the drainage basins ofMaliko Gulch to the west and Makapipi Stream tothe east. About 989 million gallons per day of rain-fall and 176 million gallons per day of fog dripreaches the...
Bathymetric survey and physical and chemical-related properties of Raccourci Lake, Louisiana, July 1998 and April 1999
Paul A. Ensminger
1999, Water-Resources Investigations Report 99-4292
Raccourci Lake (Old River), an oxbow lake formed from an incomplete cutoff of the Mississippi River in southeast Louisiana, is a popular recreational lake used for water-based activities such as water skiing, fishing, boating, and swimming. The nearness of this large oxbow to Baton Rouge and its continued fishing productivity...
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,...
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...
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...
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....
Aerial gamma-ray surveys of the conterminous United States and Alaska
Joseph S. Duval
1999, Open-File Report 99-562-C
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....
Sun-Illuminated Sea Floor Topography of Quadrangle 2 in the Stellwagen Bank National Marine Sanctuary Off Boston, Massachusetts
Page C. Valentine, Tanya S. Unger, Jessica L. Baker
1999, IMAP 2702
Quality of ground water in Webb County, Texas, 1997-98
Rebecca B. Lambert, Charles A. Hartmann
1999, Fact Sheet 184-99
Rapid development and population growth are occurring in Webb County in south Texas (fig. 1). Water managers need information on the ground-water resources of the area to address the increased demand for water caused by the development. To help meet this need, the U.S. Geological Survey (USGS), in cooperation with...
Water quality in the Trinity River basin, Texas, 1992-95
Larry F. Land, J. Bruce Moring, Peter C. Van Metre, David C. Reutter, Barbara Mahler, Allison A. Shipp, Randy L. Ulery
1999, Circular 1171
Water quality in the Trinity River basin was studied during 1992-95 as part of the USGS National Water-Quality Assessment (NAWQA) Program. Studies included chemical sampling of streams, streambed sediments, biota, and ground water; measuring distributions of biological communities in streams; and measuring physical characteristics of streams that affect biological habitat....
Distribution of salinity in ground water from the interpretation of borehole-geophysical logs and salinity data, Calf Pasture Point, Davisville, Rhode Island
Peter E. Church, William C. Brandon
1999, Water-Resources Investigations Report 99-4153
The distribution of salinity in ground water at Calf Pasture Point, a small coastal peninsula bounded by Narragansett Bay on the east and Allen Harbor on the west, in Davisville, Rhode Island, was interpreted from borehole-geophysical data and previously collected salinity data to help identify potential flowpaths of contaminated ground...
Inventory of debris flows and floods in the Lovingston and Horseshoe Mountain, VA, 7.5' quadrangles from the August 19/20, 1969, storm in Nelson County, Virginia
B. A. Morgan III, Giulio Iovine, Peter G. Chirico, G. F. Wieczorek
1999, Open-File Report 99-518
No abstract available....
West Florida Shelf: Sidescan-sonar and sediment data from shelf-edge habitats in the Northeastern Gulf of Mexico
Peter R. Briere, Kathryn M. Scanlon, Christopher T. Gledhill, Christopher C. Koenig, Gary Fitzhugh
1999, Open-File Report 99-589
No abstract available....
