In-situ growth of calcite at Devils Hole, Nevada--Comparison of field and laboratory rates to a 500,000 year record of near-equilibrium calcite growth
Niel Plummer, Eurybiades Busenberg, Alan C. Riggs
2000, Aquatic Geochemistry (6) 257-274
Calcite grew continuously for 500,000 years on the submerged walls of an open fault plane (Devils Hole) in southern Nevada, U.S.A. at rates of 0.3 to 1.3 mm/ka, but ceased growing approximately 60,000 years ago, even though the fault plane remained open and was continuously submerged. The maximum initial in-situ...
Is seawater intrusion affecting ground water on Lopez Island, Washington?
James R. Lyles, editor(s)
2000, Fact Sheet 057-00
Naturally occurring radionuclides in the ground water of southeastern Pennsylvania
Ronald A. Sloto
2000, Fact Sheet 012-00
Naturally occurring radionuclides in the ground water of southeastern Pennsylvania may pose a health hazard to some residents, especially those drinking water from wells drilled in the Chickies Quartzite. Water from 46 percent of wells sampled in the Chickies Quartzite and 7 percent of wells sampled in other geologic formations...
Delta subsidence in California: The sinking heart of the state
S. E. Ingebritsen, M. E. Ikehara, D. L. Galloway, D.R. Jones
2000, Fact Sheet 005-00
The Sacramento-San Joaquin River Delta of California once was a great tidal freshwater marsh blanketed by peat and peaty alluvium. Beginning in the late 1800s, levees were built along the stream channels, and the land thus protected from flooding was drained, cleared, and planted. Although the Delta is now an...
Isostatic gravity map of the Battle Mountain 30 x 60 minute quadrangle, north central Nevada
D. A. Ponce, R. L. Morin
2000, IMAP 2687
Gravity investigations of the Battle Mountain 30 x 60 minute quadrangle were begun as part of an interagency effort by the U.S. Geological Survey (USGS) and the Bureau of Land Management to help characterize the geology, mineral resources, hydrology, and ecology of the Humboldt River Basin in north-central Nevada. The...
Hydrologic and water-quality data for ground water along the Milk River Valley, north-central to northeastern Montana
Sean M. Lawlor
2000, Open-File Report 2000-79
Comparison of phase velocities from array measurements of Rayleigh waves associated with microtremor and results calculated from borehole shear-wave velocity profiles
Hsi-Ping Liu, David M. Boore, William B. Joyner, David H. Oppenheimer, Richard E. Warrick, Wenbo Zhang, John C. Hamilton, Leo T. Brown
2000, Bulletin of the Seismological Society of America (90) 666-678
Shear-wave velocities (VS) are widely used for earthquake ground-motion site characterization. VS data are now largely obtained using borehole methods. Drilling holes, however, is expensive. Nonintrusive surface methods are inexpensive for obtaining VS information, but not many comparisons with direct borehole measurements have been published. Because different assumptions are used...
Digital elevation models derived from small format lunar images
Mark R. Rosiek, Randolph L. Kirk, Elpitha Howington-Kraus
2000, Conference Paper, ASPRS 2000 proceedings : start the 21st century : launching the geospatial information age
No abstract available....
Performance of the Taiwan Rapid Earthquake Information Release System (RTD) during the 1999 Chi-Chi (Taiwan) Earthquake
Y. Wu, W.H.K. Lee, C.-C. Chen, Tzay-Chyn Shin, Ta-Liang Teng, Y.B. Tsai
2000, Seismological Research Letters (71) 338-343
A major earthquake occurred near the town of Chi-Chi in Nantou County, Taiwan, at 1:47 am (local time), 21 September 1999, about 150 km south of Taipei. This is the largest earthquake to have occurred on land in Taiwan during the 20th century. Although Taiwan has an earthquake building...
Recent tectonics of the Blanco Ridge, eastern blanco transform fault zone
Robert Dziak, C.G. Fox, R. Embley, J.L. Nabelek, Jochen Braunmiller, Randolph A. Koski
2000, Marine Geophysical Research (21) 423-450
Bathymetric, hydro-acoustic, seismic, submersible, and gravity data are used to investigate the active tectonics of the eastern Blanco Transform Fault Zone (BTFZ). The eastern BTFZ is dominated by the ∼150 km long transform-parallel Blanco Ridge (BR) which is a right-lateral strike-slip fault bordered to the east and west by the Gorda...
Nanogram quantities of a DNA vaccine protect rainbow trout fry against heterologous strains of infectious hematopoietic necrosis virus
S. Corbeil, S. E. LaPatra, Eric Anderson, G. Kurath
2000, Vaccine (18) 2817-2824
The efficacy of a DNA vaccine containing the glycoprotein gene of infectious hematopoietic necrosis virus (IHNV), a rhabdovirus affecting trout and salmon, was investigated. The minimal dose of vaccine required, the protection against heterologous strains, and the titers of neutralizing antibodies produced were used to evaluate the potential of the...
Results of the Galileo solid state imaging (SSI) experiment
Michael J.S. Belton, C.D. Anger, M. H. Carr, C. R. Chapman, M. E. Davies, R. Greeley, R.J. Greenberg, J.W. Head, K.P. Klaasen, G. Neukum, C.B. Pilcher, P.C. Thomas, J. Veverka, P.J. Gierasch, A.P. Ingersoll, F. P. Fanale, Alfred S. McEwen, D. Morrison, G. Schubert, R.F. Beebe, J.A. Burns, T. V. Johnson, R.A. West, W. Ip, Michael McElroy, G.S. Orton
2000, Advances in Space Research (26) 1641-1647
We present a brief synopsis of the nature of SSI data that was taken during the nominal Galileo mission. Significant results are briefly described. These include evidence for geologic activity on Europa that supports the hypothesis of liquid water under a thin ice shell; a demonstration of the ubiquitous presence...
Nutrients discharged to the Mississippi River from eastern Iowa watersheds, 1996-1997
Kent Becher, Douglas J. Schnoebelen, Kimberlee K. Akers
2000, Journal of the American Water Resources Association (36) 161-173
The introduction of nutrients from chemical fertilizer, animal manure, wastewater, and atmospheric deposition to the eastern Iowa environment creates a large potential for nutrient transport in watersheds. Agriculture constitutes 93 percent of all land use in eastern Iowa. As part of the U.S. Geological Survey National Water Quality Assessment Program,...
Environmental factors influencing the distribution and salvage of young delta smelt: a comparison of factors occurring in 1996 and 1999
Matthew Nobriga, Zach Hymanson, Rick Oltmann
2000, Interagency Ecological Program Newsletter (13) 55-65
The delta smelt (Hypomesus transpacificus) is listed as a threatened species under both the Federal Endangered Species Act (FESA) and the California Endangered Species Act. Through formal consultation under Section 7 of the FESA, USBR and DWR received a Biological Opinion from the USFWS, which allows for the incidental take...
Untapped potential? The San Francisco Volcanic Field, Arizona
Wendell A. Duffield, Paul Morgan, John Sass
2000, Geothermal Resources Council Bulletin (29) 97-99
No abstract available....
The human factor in mining reclamation
Belinda F. Arbogast, Daniel H. Knepper, William H. Langer
2000, Circular 1191
Rapid urbanization of the landscape results in less space available for wildlife habitat, agriculture, and recreation. Mineral resources (especially nonmetallic construction materials) become unrecoverable due to inaccessibility caused by development. This report both describes mine sites with serious problems and draws attention to thoughtful reclamation projects for better future management....
Sidescan-sonar imagery, surface sediment samples, and surficial geologic interpretation of the southwestern Washington inner continental shelf based on data collected during Corliss Cruises 97007 and 98014
David C. Twichell, V.A. Cross, K. F. Parolski
2000, Open-File Report 2000-167
No abstract available....
Vermont
Water Resources Division, U.S. Geological Survey
2000, Fact Sheet 047-99
Organic metamorphism in the California petroleum basins; Chapter B, Insights from extractable bitumen and saturated hydrocarbons
Leigh C. Price
2000, Bulletin 2174-B
Seventy-five shales from the Los Angeles, Ventura, and Southern San Joaquin Valley Basins were extracted and analyzed. Samples were chosen on the basis of ROCK-EVAL analyses of a much larger sample base. The samples ranged in burial temperatures from 40 ? to 220 ? C, and contained hydrogen-poor to hydrogen-rich organic matter (OM), based on OM visual typing and a...
Geologic map of the Corcoran Canyon Quadrangle, Nye County, Nevada
D. R. Shawe, Richard F. Hardyman, Frank M. Byers Jr.
2000, IMAP 2680
Determining the occurrence of pesticides and volatile organic compounds in public water-supply source waters in Texas
B.J. Mahler
2000, Fact Sheet 010-00
El Nino storms erode beaches on Monterey Bay, California
John R. Dingler
2000, Fact Sheet 026-00
Map and database of Quaternary faults and folds in Argentina
Carlos Costa, M. N. Machette, R. L. Dart, H.E. Bastias, J.D. Paredes, L.P. Perucca, G.E. Tello, K. M. Haller
2000, Open-File Report 2000-108
No abstract available. ...
Geologic map and digital database of the Cougar Buttes 7.5' quadrangle, San Bernardino County, California
Robert E. Powell, Jonathan C. Matti, P. M. Cossette
2000, Open-File Report 2000-175
The Southern California Areal Mapping Project (SCAMP) of Geologic Division has undertaken regional geologic mapping investigations in the Lucerne Valley area co-sponsored by the Mojave Water Agency and the San Bernardino National Forest. These investigations span the Lucerne Valley basin from the San Bernardino Mountains front northward to the basin...
Map showing inventory and regional susceptibility for Holocene debris flows, and related fast-moving landslides in the conterminous United States
Earl E. Brabb, Joseph P. Colgan, Timothy C. Best
2000, Miscellaneous Field Studies Map 2329
Introduction Debris flows, debris avalanches, mud flows and lahars are fast-moving landslides that occur in a wide variety of environments throughout the world. They are particularly dangerous to life and property because they move quickly, destroy objects in their paths, and often strike without warning. This map represents a significant effort...
