Quantitative x-ray diffraction mineralogy of Los Angeles basin core samples
James R. Hein, Brandie R. McIntyre, Brian D. Edwards, Orion I. Lakota
2006, Open-File Report 2006-1036
This report contains X-ray diffraction (XRD) analysis of mineralogy for 81 sediment samples from cores taken from three drill holes in the Los Angeles Basin in 2000-2001. We analyzed 26 samples from Pier F core, 29 from Pier C core, and 26 from the Webster core. These three sites provide...
Gravity and magnetic data in the vicinity of Virgin Valley, southern Nevada
Robert L. Morin
2006, Open-File Report 2006-1042
This report contains 10 interpretive cross sections and an integrated text describing the geology of parts of the Colorado, White River, and Death Valley regional ground-water flow systems, Nevada, Utah, and Arizona. The primary purpose of the report is to provide geologic framework data for input into a numerical ground-water...
Maps of quaternary deposits and liquefaction susceptibility in the Central San Francisco Bay Region, California
Robert C. Witter, Keith L. Knudsen, Janet M. Sowers, Carl M. Wentworth, Richard D. Koehler, Carolyn E. Randolph, Suzanna K. Brooks, Kathleen D. Gans
2006, Open-File Report 2006-1037
This report presents a map and database of Quaternary deposits and liquefaction susceptibility for the urban core of the San Francisco Bay region. It supercedes the equivalent area of U.S. Geological Survey Open-File Report 00-444 (Knudsen and others, 2000), which covers the larger 9-county San Francisco Bay region. The...
Heterogeneity in fire severity within early season and late season prescribed burns in a mixed-conifer forest
Eric E. Knapp, Jon E. Keeley
2006, International Journal of Wildland Fire (15) 37-45
Structural heterogeneity in forests of the Sierra Nevada was historically produced through variation in fire regimes and local environmental factors. The amount of heterogeneity that prescription burning can achieve might now be more limited owing to high fuel loads and increased fuel continuity. Topography, woody fuel loading, and vegetative composition...
Pesticides in the Nation's Streams and Ground Water, 1992–2001
Robert J. Gilliom, Jack E. Barbash, Charles G. Crawford, Pixie A. Hamilton, Jeffrey D. Martin, Naomi Nakagaki, Lisa H. Nowell, Jonathan C. Scott, Paul E. Stackelberg, Gail P. Thelin, David M. Wolock
2006, Circular 1291
This report is one of a series of publications, The Quality of Our Nation's Waters, that describe major findings of the NAWQA Program on water-quality issues of regional and national concern. This report presents evaluations of pesticides in streams and ground water based on findings for the first decadal cycle...
USGS science in Menlo Park -- a science strategy for the U.S. Geological Survey Menlo Park Science Center, 2005-2015
Thomas M. Brocher, Michael D. Carr, David L. Halsing, David A. John, Victoria E. Langenheim, Margaret T. Mangan, Mark C. Marvin-DiPasquale, John Y. Takekawa, Claire R. Tiedeman
2006, Circular 1290
In the spring of 2004, the U.S. Geological Survey (USGS) Menlo Park Center Council commissioned an interdisciplinary working group to develop a forward-looking science strategy for the USGS Menlo Park Science Center in California (hereafter also referred to as "the Center"). The Center has been the flagship research center for...
Water resources data Kansas, water year 2005
James E. Putnam, D.R. Schneider
2006, Water Data Report KS-05-1
Hydraulic and geomorphic monitoring of experimental bridge scour mitigation at selected bridges in Utah, 2003-05
Terry A. Kenney, Tim S. McKinney
2006, Scientific Investigations Report 2006-5033
Unique bridge scour mitigation designs using concrete A-Jacks were developed by the Utah Department of Transportation and installed at the Colorado River Bridge at State Road 191 and the Green River Bridge at State Road 19. The U.S. Geological Survey monitored stream reaches at these sites by collecting streambed-topography and...
Evapotranspiration by phreatophytes along the lower Colorado River at Havasu National Wildlife Refuge, Arizona
Craig L. Westenburg, Don P. Harper, Guy A. DeMeo
2006, Scientific Investigations Report 2006-5043
Sedimentation survey of Lago Loiza, Puerto Rico, January 2004
Luis R. Soler-Lopez, Fernando Gómez-Gómez
2006, Scientific Investigations Report 2005-5239
Preliminary isostatic gravity map of the Sonoma volcanic field and vicinity, Sonoma and Napa Counties, California
V.E. Langenheim, C. W. Roberts, C.A. McCabe, D.K. McPhee, J. E. Tilden, R.C. Jachens
2006, Open-File Report 2006-1056
This isostatic residual gravity map is part of a three-dimensional mapping effort focused on the subsurface distribution of rocks of the Sonoma volcanic field in Napa and Sonoma counties, northern California. This map will serve as a basis for modeling the shapes of basins beneath the Santa Rosa Plain and...
Pesticides in the nation's streams and ground water, 1992-2001 - a summary
Robert J. Gilliom, Pixie A. Hamilton
2006, Fact Sheet 2006-3028
Temperature variations at diffuse and focused flow hydrothermal vent sites along the northern East Pacific Rise
Daniel S. Scheirer, Timothy M. Shank, Daniel J. Fornari
2006, Geochemistry, Geophysics, and Geosystems (7)
In the decade following documented volcanic activity on the East Pacific Rise near 9°50′N, we monitored hydrothermal vent fluid temperature variations in conjunction with approximately yearly vent fluid sampling to better understand the processes and physical conditions that govern the evolution of seafloor hydrothermal systems. The temperature of both diffuse...
Large-volume volcanic edifice failures in Central America and associated hazards
Lee Siebert, Guillermo E. Alvarado, James W. Vallance, Benjamin van Wyk de Vries
2006, GSA Special Papers (412) 1-26
Edifice-collapse phenomena have, to date, received relatively little attention in Central America, although ∼40 major collapse events (≥0.1 km3) from about two dozen volcanoes are known or inferred in this volcanic arc. Volcanoes subjected to gravitational failure are concentrated at the arc's western and eastern ends. Failures correlate positively...
Confirmation and calibration of computer modeling of tsunamis produced by Augustine volcano, Alaska
James E. Beget, Zygmunt Kowalik
2006, Science of Tsunami Hazards (24) 257-266
Numerical modeling has been used to calculate the characteristics of a tsunami generated by a landslide into Cook Inlet from Augustine Volcano. The modeling predicts travel times of ca. 50-75 minutes to the nearest populated areas, and indicates that significant wave amplification occurs near Mt. Iliamna on the western...
Potential risks of pesticide degradates to aquatic life
Alistair Boxall, C. Sinclair, Dana W. Koplin
2006, Report, The quality of our Nation’s waters – Pesticides in the Nation’s steams and ground water, 1992-2001
Recent advances in analytical methodology and greater access to analytical standards have led to the detection of degradates from a wide variety of pesticides and other compounds in surface water, ground water, precipitation, air, and sediment (Boxall and others, 2004). Many of these degradates are more persistent in the environment...
Experimental West Nile virus infection in Eastern Screech Owls (Megascops asio)
Nicole M Nemeth, D. Caldwell Hahn, D. H. Gould, R. A. Bowen
2006, Avian Diseases (50) 252-258
This study evaluated the potential effects of different concentrations of bleached/unbleached kraft mill effluent (B/UKME) on several reproductive endpoints in adult largemouth bass (Micropterus salmoides). The kraft mill studied produces a 50/50 mix of bleached/unbleached market pulp with an estimated release of 36 million gal of effluent/day. Bleaching sequences were...
Closure to “One-dimensional wave bottom boundary layer model comparison: Specific eddy viscosity and turbulence closure models” by Jack A. Puleo, Oleg Mouraenko, and Daniel M. Hanes
Jack A. Puleo, O. Mouraenko, Daniel M. Hanes
2006, Journal of Waterway, Port, Coastal, and Ocean Engineering (132) 141-142
No abstract available....
Growth and collapse of Hawaiian volcanoes
Michelle L. Coombs, Barry W. Eakins, Peter F. Cervelli
2006, Journal of Volcanology and Geothermal Research (151) vii-viii
This special issue is an outgrowth of a session of the same name held at the 2003 Fall Meeting of the American Geophysical Union (AGU) in San Francisco. The session served dual purposes: to highlight recent advances in our understanding of the development and internal structure of Hawaiian volcanoes, and...
Strand-specific, real-time RT-PCR assays for quantification of genomic and positive-sense RNAs of the fish rhabdovirus, Infectious hematopoietic necrosis virus
Maureen K. Purcell, S. Alexandra Hart, Gael Kurath, James R. Winton
2006, Journal of Virological Methods (132) 18-24
The fish rhabdovirus, Infectious hematopoietic necrosis virus (IHNV), is an important pathogen of salmonids. Cell culture assays have traditionally been used to quantify levels of IHNV in samples; however, real-time or quantitative RT-PCR assays have been proposed as a rapid alternative. For viruses having a single-stranded, negative-sense RNA genome, standard qRT-PCR assays...
The shuttle radar topography mission: data validation and applications
Dean B. Gesch, Jan-Peter Muller, T.J. Farrugia
2006, Photogrammetric Engineering and Remote Sensing (72) 233-235
No abstract available....
The influence of hydrous Mn–Zn oxides on diel cycling of Zn in an alkaline stream draining abandoned mine lands
Christopher L. Shope, Ying Xie, Christopher H. Gammons
2006, Applied Geochemistry (21) 476-491
Many mining-impacted streams in western Montana with pH near or above neutrality display large (up to 500%) diel cycles in dissolved Zn concentrations. The streams in question typically contain boulders coated with a thin biofilm, as well as black mineral crusts composed of hydrous Mn–Zn oxides. Laboratory mesocosm experiments simulating...
Intra-seasonal NDVI change projections in semi-arid Africa
Christopher C. Funk, Molly E. Brown
2006, Remote Sensing of Environment (101) 249-256
Early warning systems (EWS) tend to focus on the identification of slow onset disasters such famine and epidemic disease. Since hazardous environmental conditions often precede disastrous outcomes by many months, effective monitoring via satellite and in situ observations can successfully guide mitigation activities. Accurate short term forecasts of NDVI could...
Changes in seasonal nearshore zooplankton abundance patterns in Lake Ontario following establishment of the exotic predator Cercopagis pengoi
David M. Warner, Lars G. Rudstam, Hugues Benoit, Edward L. Mills, Ora E. Johannsson
2006, Journal of Great Lakes Research (32) 531-542
Cercopagis pengoi, a zooplanktivore first discovered in Lake Ontario in 1998, may reduce availability of prey for planktivorous fish. Cercoapgis pengoi is most abundant in late summer and fall. Therefore, we hypothesized that abundance of small zooplankton (bosminids and cyclopoids) species would decrease at that time. To determine if the establishment of C. pengoi was...
Conservation of Toll-like receptor signaling pathways in teleost fish
M. K. Purcell, K.D. Smith, A. Aderem, L. Hood, J. R. Winton, J.C. Roach
2006, Comparative Biochemistry and Physiology, Part D: Genomics and Proteomics (1) 77-88
In mammals, toll-like receptors (TLR) recognize ligands, including pathogen-associated molecular patterns (PAMPs), and respond with ligand-specific induction of genes. In this study, we establish evolutionary conservation in teleost fish of key components of the TLR-signaling pathway that act as switches for differential gene induction, including MYD88, TIRAP, TRIF, TRAF6, IRF3,...
