Quaternary geology and liquefaction susceptibility, Napa, California 1:100,000 quadrangle: A digital database
Janet M. Sowers, Jay S. Noller, William R. Lettis
1998, Open-File Report 98-460
Earthquake-induced ground failures such as liquefaction have historically brought loss of life and damage to property and infrastructure. Observations of the effects of historical large-magnitude earthquakes show that the distribution of liquefaction phenomena is not random. Liquefaction is restricted to areas underlain by loose, cohesionless sands and silts...
Lithostratigraphy, petrography, biostratigraphy, and strontium-isotope stratigraphy of the surficial aquifer system of western Collier County, Florida
Lucy E. Edwards, S.D. Weedman, Kathleen Simmons, T.M. Scott, G. L. Brewster-Wingard, S. E. Ishman, N.M. Carlin
1998, Open-File Report 98-205
In 1996, seven cores were recovered in western Collier County, southwestern Florida, to acquire subsurface geologic and hydrologic data to support ground-water modeling efforts. This report presents the lithostratigraphy, X-ray diffraction analyses, petrography, biostratigraphy, and strontium-isotope stratigraphy of these cores. The oldest unit encountered in the study cores is an...
Data for periphyton and water samples collected from the south Florida ecosystem, 1995 and 1996
N.S. Simon, T. Cox, R. Spencer
1998, Open-File Report 98-76
This report presents data for samples of periphyton and water collected in 1995 and 1996 from Water Conservation Areas, the Big Cypress National Preserve, and the Everglades National Park in south Florida. Periphyton samples were analyzed for concentrations of total mercury, methylmercury, nitrogen, phosphorus, organic carbon, and inorganic carbon ....
Water-quality and lake-stage data for Wisconsin lakes, water year 1997
Dale M. Robertson, J. F. Elder, H.S. Garn, G.L. Goodard, S.B. Marsh, D.L. Olson, W. J. Rose
1998, Open-File Report 98-78
The U.S. Geological Survey (USGS), in cooperation with local and other agencies, collects data at selected lakes throughout Wisconsin. These data, accumulated over many years, provide a data base for developing an improved understanding of the water quality of lakes. To make these data available to interested parties outside the...
Sites in the Virginia-Washington, D.C.-Maryland metro area to observe or collect bacteria that precipitate iron and manganese oxides
E. I. Robbins
1998, Open-File Report 98-202
Distribution of surficial sediments in New Haven Harbor, Connecticut, and the New Haven Dumping Grounds, north-central Long Island Sound
L.J. Poppe, A.C. Robinson, Dann Blackwood, R. S. Lewis, M. L. DiGiacomo-Cohen
1998, Open-File Report 98-217
Hydrologic and chemical data from the Long Valley Hydrologic Advisory Committee Monitoring Program in Long Valley Caldera, Mono County, California, 1988-1997
M.L. Sorey, C. D. Farrar
1998, Open-File Report 98-70
Bibliography pertaining to the Ozark Mississippi valley-type metallogenic province, Missouri, Arkansas, Kansas, and Oklahoma, USA, covering 1785 to February 1998; CD-ROM edition
Craig McClung, Dorinda Bair, David L. Leach
1998, Open-File Report 98-238-B
No abstract available....
Seismicity near the Red Bank, Thomes-Newville, and Colusa Projects recorded by the Northern California Seismic Network
D. H. Oppenheimer
1998, Open-File Report 98-214
Selected geochemical data for the Dillon BLM Resource Area, including the Virginia City mining district, Madison and Beaverhead Counties, southwest Montana : mineral-resource and mineral-environmental considerations
Jane Marie Hammarstrom, Bradley S. Van Gosen
1998, Open-File Report 98-224-C
Characteristics of discrete and basin-centered parts of the Lower Silurian regional oil and gas accumulation, Appalachian basin: Preliminary results from a data set of 25 oil and gas fields
Robert T. Ryder
1998, Open-File Report 98-216
Oil and gas trapped in Lower Silurian "Clinton" sands and Medina Group sandstone constitute a regional hydrocarbon accumulation that extends 425 mi in length from Ontario, Canada to northeastern Kentucky. The 125-mi width of the accumulation extends from central Ohio eastward to western Pennsylvania and west-central New York. Lenticular and...
Preliminary volcano-hazard assessment for Augustine Volcano, Alaska
Christopher F. Waythomas, Richard B. Waitt
1998, Open-File Report 98-106
Augustine Volcano is a 1250-meter high stratovolcano in southwestern Cook Inlet about 280 kilometers southwest of Anchorage and within about 300 kilometers of more than half of the population of Alaska. Explosive eruptions have occurred six times since the early 1800s (1812, 1883, 1935, 1964-65, 1976, and 1986). The 1976...
A simplified economic filter for open-pit gold-silver mining in the United States
Donald A. Singer, W. David Menzie, Keith R. Long
1998, Open-File Report 98-207
In resource assessments of undiscovered mineral deposits and in the early stages of exploration, including planning, a need for prefeasibility cost models exists. In exploration, these models to filter economic from uneconomic deposits help to focus on targets that can really benefit the exploration enterprise. In resource assessment, these models...
Audio-magnetotelluric data collected in the Beatty, Nevada area
J. M. Williams
1998, Open-File Report 98-231
Streamflow statistics of selected streams in the lower Red River of the North basin, North Dakota, Minnesota, and Manitoba
Tara Williams-Sether, Gregg J. Wiche
1998, Open-File Report 98-21
Statistical summaries of streamflow data through water year 1994 for selected active and discontinued U.S. Geological Survey gaging stations for the Red River of the North Basin downstream of Halstad, Minnesota, to and including Emerson, Manitoba, are presented in this report. The summaries for each streamflow-gaging station include (1) station...
Summary of pesticide data from streams and wells in the Potomac River Basin, 1993-96
Colleen A. Donnelly, Matthew J. Ferrari
1998, Open-File Report 97-666
Eighty-five water-soluble pesticides and pesticide degradation products were analyzed in 384 surface-water and ground-water samples collected from the Potomac River Basin during March 1993 through September 1996. Thirty-nine of these compounds were detected in surface-water samples and 16 were detected in ground-water samples. At least one pesticide was detected in...
Multibeam data and socio-economic issues in west-central San Francisco Bay
John L. Chin, Paul R. Carlson, Florence L. Wong, David A. Cacchione
1998, Open-File Report 98-139
San Francisco Bay is the largest estuary on the conterminous U.S. Pacific Coast and is one of the world's largest natural harbors. It is a biologically productive and diverse environment. San Francisco Bay has a maritime economy that annually generates over $7.5 billion, handles 50 million tons of cargo, and...
Geologic map of the Ennis 30' x 60' quadrangle, Gallatin and Madison Counties, Montana
Karl S. Kellogg, Van S. Williams
1998, Open-File Report 97-851
The Ennis 1:100,000 quadrangle lies within both the Laramide (Late Cretaceous to early Tertiary) foreland province of southwestern Montana and the northeastern margin of the middle to late Tertiary Basin and Range province. The oldest rocks in the quadrangle are Archean high-grade gneiss, and granitic to ultramafic intrusive rocks that...
Geologic map of the Paintbrush Canyon area, Yucca Mountain, Nevada
R. P. Dickerson, R. M. Drake II
1998, Open-File Report 97-783
Physical characteristics of stream subbasins in the South Fork Crow River basin, south-central Minnesota
C. A. Sanocki
1998, Open-File Report 98-20
Data that describe the physical characteristics of stream subbasins upstream from selected. sites on streams in the South Fork Crow River Basin, located in south-central Minnesota are presented in this report. The physical characteristics are the drainage area of the subbasin, the percentage area of the subbasin covered only by...
Strong motion from surface waves in deep sedimentary basins
W. B. Joyner
1998, Open-File Report 98-211
Analytical results for forty-two fluvial tailings cores and seven stream sediment samples from High Ore Creek, northern Jefferson County, Montana
David L. Fey, Stan E. Church
1998, Open-File Report 98-215
Metal-mining related wastes in the Boulder River basin study area in northern Jefferson County, Montana have been implicated in their detrimental effects on water quality with regard to acid-generation and toxic-metal solubility. Sediments, fluvial tailings and water from High Ore Creek have been identified as significant contributors to water quality...
An evaluation of several geophysical methods for characterizing sand and gravel deposits
K.J. Ellefsen, J.E. Lucius, D.V. Fitterman
1998, Open-File Report 98-221
Cruise report, RV ocean alert cruise A1-98-HW; January 30 through February 23, 1998, Honolulu to Honolulu, Hawaii
James V. Gardner, John E. Hughes Clarke
1998, Open-File Report 98-212
The major objective of cruise A1-98 was to map portions of the insular slopes of Oahu, Kauai, Maui, Molokai, and Hawaii and to survey in detail US Environmental Protection Agency (USEPA) ocean dumping sites using a Simrad EM300 high-resolution multibeam mapping system. The cruise was a jointly funded project between...
Slides of the fluorspar, beryllium, and uranium deposits at Spor Mountain, Utah
David A. Lindsey
1998, Open-File Report 98-524
