Tritium/Helium-3 Apparent Ages of Shallow Ground Water, Portland Basin, Oregon, 1997-98
Stephen R. Hinkle
2009, Scientific Investigations Report 2009-5057
Water samples for tritium/helium-3 age dating were collected from 12 shallow monitoring wells in the Portland basin, Oregon, in 1997, and again in 1998. Robust tritium/helium-3 apparent (piston-flow) ages were obtained for water samples from 10 of the 12 wells; apparent ages ranged from 1.1 to 21.2 years. Method precision...
Estimating Locations of Perennial Streams in Idaho Using a Generalized Least-Squares Regression Model of 7-Day, 2-Year Low Flows
Molly S. Wood, Alan Rea, Kenneth D. Skinner, Jon Hortness
2009, Scientific Investigations Report 2009-5015
Many State and Federal agencies use information regarding the locations of streams having intermittent or perennial flow when making management and regulatory decisions. For example, the application of some Idaho water quality standards depends on whether streams are intermittent. Idaho Administrative Code defines an intermittent stream as one having a...
Estimated Perennial Streams of Idaho and Related Geospatial Datasets
Alan Rea, Kenneth D. Skinner
2009, Data Series 412
The perennial or intermittent status of a stream has bearing on many regulatory requirements. Because of changing technologies over time, cartographic representation of perennial/intermittent status of streams on U.S. Geological Survey (USGS) topographic maps is not always accurate and (or) consistent from one map sheet to another. Idaho Administrative Code...
Post-Miocene Right Separation on the San Gabriel and Vasquez Creek Faults, with Supporting Chronostratigraphy, Western San Gabriel Mountains, California
Larry A. Beyer, Thane H. McCulloh, Rodger E. Denison, Ronald W. Morin, Roy J. Enrico, John A. Barron, Robert J. Fleck
2009, Professional Paper 1759
The right lateral San Gabriel Fault Zone in southern California extends from the northwestern corner of the Ridge Basin southeastward to the eastern end of the San Gabriel Mountains. It bifurcates to the southeast in the northwestern San Gabriel Mountains. The northern and older branch curves eastward in the range...
Geophysical Investigation Along the Great Miami River From New Miami to Charles M. Bolton Well Field, Cincinnati, Ohio
R. A. Sheets, D.H. Dumouchelle
2009, Open-File Report 2009-1025
Three geophysical profiling methods were tested to help characterize subsurface materials at selected transects along the Great Miami River, in southwestern Ohio. The profiling methods used were continuous seismic profiling (CSP), continuous resistivity profiling (CRP), and continuous electromagnetic profiling (CEP). Data were collected with global positioning systems to spatially locate...
Water Withdrawals, Use, and Wastewater Return Flows in the Concord River Basin, Eastern Massachusetts, 1996-2000
Lora K. Barlow, Linda M. Hutchins, Leslie A. DeSimone
2009, Scientific Investigations Report 2008-5158
Water withdrawals, use, and wastewater return flows for the Concord River Basin were estimated for the period 1996-2000. The study area in eastern Massachusetts is 400 square miles in area and includes the basins of two major tributaries, the Assabet and Sudbury Rivers, along with the Concord River, which starts...
Annual Maximum Stages and Discharges of Selected Streams in Virginia through 2007
Samuel H. Austin, Ute Wiegand
2009, Open-File Report 2009-1007
Annual maximum stages and discharges for continuous-record and partial-record streamflow-gaging stations in Virginia are summarized through the 2007 water year. Data are included for over 500 active and discontinued streamflow-gaging stations operated by the U.S. Geological Survey, the Virginia Department of Environmental Quality, and other agencies for which 2 or...
Water-Resources Data and Hydrogeologic Setting at the Raleigh Hydrogeologic Research Station, Wake County, North Carolina, 2005-2007
Kristen Bukowski McSwain, Richard E. Bolich, Melinda J. Chapman, Brad A. Huffman
2009, Open-File Report 2008-1377
Water-resources data were collected to describe the hydrologic conditions at the Raleigh hydrogeologic research station, located in the Piedmont Physiographic Province of North Carolina. Data collected by the U.S. Geological Survey and the North Carolina Department of Environment and Natural Resources, Division of Water Quality, from May 2005 through September...
Channel Change in 2007 at Selected Sites on the Marias River, Montana, Following a 2006 High-Flow Release from Tiber Dam
Gregor T. Auble, Zachary H. Bowen
2009, Data Series 410
In June 2006, an opportunistic high-flow release was made from Tiber Dam on the Marias River in Montana to investigate possible alternatives for partially restoring the river's natural flow pattern and variability. At two sites along the river, we measured channel geometry in 2006 before and after the high-flow release...
Generalized Skew Coefficients of Annual Peak Flows for Rural, Unregulated Streams in West Virginia
John T. Atkins, Jeffrey B. Wiley, Katherine S. Paybins
2009, Open-File Report 2008-1304
Generalized skew was determined from analysis of records from 147 streamflow-gaging stations in or near West Virginia. The analysis followed guidelines established by the Interagency Advisory Committee on Water Data described in Bulletin 17B, except that stations having 50 or more years of record were used instead of stations with...
Detailed Geophysical Fault Characterization in Yucca Flat, Nevada Test Site, Nevada
Theodore H. Asch, Donald S. Sweetkind, Bethany L. Burton, Erin L. Wallin
2009, Open-File Report 2008-1346
Yucca Flat is a topographic and structural basin in the northeastern part of the Nevada Test Site (NTS) in Nye County, Nevada. Between the years 1951 and 1992, 659 underground nuclear tests took place in Yucca Flat; most were conducted in large, vertical excavations that penetrated alluvium and the underlying...
Geochemical Analyses of Rock, Sediment, and Water from the Region In and Around the Tuba City Landfill, Tuba City, Arizona
Raymond H. Johnson, Laurie Wirt
2009, Open-File Report 2009-1020
The Tuba City Landfill (TCL) started as an unregulated waste disposal site in the 1940s and was administratively closed in 1997. Since the TCL closure, radionuclides have been detected in the shallow ground water. In 2006, the Bureau of Indian Affairs (BIA) contracted with the U.S. Geological Survey (USGS) to...
Floods of Selected Streams in Arkansas, Spring 2008
Jaysson E. Funkhouser, Ken Eng
2009, Fact Sheet 2008-3103
Floods can cause loss of life and extensive destruction to property. Monitoring floods and understanding the reasons for their occurrence are the responsibility of many Federal agencies. The National Weather Service, the U.S. Army Corps of Engineers, and the U.S. Geological Survey are among the most visible of these agencies....
Mesozoic magmatism and base-metal mineralization in the Fortymile mining district, eastern Alaska — Initial results of petrographic, geochemical, and isotopic studies in the Mount Veta area
Cynthia Dusel-Bacon, John F. Slack, John N. Aleinikoff, James K. Mortensen
2009, Professional Paper 1760-A
We present here the initial results of a petrographic, geochemical, and isotopic study of Mesozoic intrusive rocks and spatially associated Zn-Pb-Ag-Cu-Au prospects in the Fortymile mining district in the southern Eagle quadrangle, Alaska. Analyzed samples include mineralized and unmineralized drill core from 2006 and 2007 exploration by Full Metal Minerals,...
Ground-Water Temperature, Noble Gas, and Carbon Isotope Data from the Espanola Basin, New Mexico
Andrew H. Manning
2009, Scientific Investigations Report 2008-5200
Ground-water samples were collected from 56 locations throughout the Espanola Basin and analyzed for general chemistry (major ions and trace elements), carbon isotopes (delta 13C and 14C activity) in dissolved inorganic carbon, noble gases (He, Ne, Ar, Kr, Xe, and 3He/4He ratio), and tritium. Temperature profiles were measured at six...
Three-dimensional numerical model of ground-water flow in northern Utah Valley, Utah County, Utah
Philip M. Gardner
2009, Scientific Investigations Report 2008-5049
A three-dimensional, finite-difference, numerical model was developed to simulate ground-water flow in northern Utah Valley, Utah. The model includes expanded areal boundaries as compared to a previous ground-water flow model of the valley and incorporates more than 20 years of additional hydrologic data. The model boundary was generally expanded to...
Hydrology of Northern Utah Valley, Utah County, Utah, 1975-2005
Jay R. Cederberg, Philip M. Gardner, Susan A. Thiros
2009, Scientific Investigations Report 2008-5197
The ground-water resources of northern Utah Valley, Utah, were assessed during 2003-05 to describe and quantify components of the hydrologic system, determine a hydrologic budget for the basin-fill aquifer, and evaluate changes to the system relative to previous studies. Northern Utah Valley is a horst and graben structure with ground...
Summary of fluvial sediment collected at selected sites on the Gunnison River in Colorado and the Green and Duchesne Rivers in Utah, Water Years 2005-2008
Cory A. Williams, Steven J. Gerner, John G. Elliott
2009, Data Series 409
The Colorado River Basin provides habitat for 14 native fish, including four endangered species protected under the Federal Endangered Species Act of 1973 - Colorado pikeminnow (Ptychocheilus lucius), razorback sucker (Xyrauchen texanus), bonytail (Gila elegans), and humpback chub (Gila cypha). These endangered fish species once thrived in the Colorado River...
Turbulent stresses and secondary currents in a tidal-forced channel with significant curvature and asymmetric bed forms
D.A. Fong, Stephen G. Monismith, M.T. Stacey, J.R. Burau
2009, Journal of Hydraulic Engineering (135) 198-208
Acoustic Doppler current profilers are deployed to measure both the mean flow and turbulent properties in a channel with significant curvature. Direct measurements of the Reynolds stress show a significant asymmetry over the tidal cycle where stresses are enhanced during the flood tide and less prominent over...
Assessing the impact of land use change on hydrology by ensemble modelling (LUCHEM) II: Ensemble combinations and predictions
N.R. Viney, H. Bormann, L. Breuer, A. Bronstert, B.F.W. Croke, H. Frede, T. Graff, L. Hubrechts, J. A. Huisman, A.J. Jakeman, G.W. Kite, J. Lanini, G. Leavesley, D.P. Lettenmaier, G. Lindstrom, J. Seibert, M. Sivapalan, P. Willems
2009, Advances in Water Resources (32) 147-158
This paper reports on a project to compare predictions from a range of catchment models applied to a mesoscale river basin in central Germany and to assess various ensemble predictions of catchment streamflow. The models encompass a large range in inherent complexity and input requirements. In approximate order of decreasing...
A multidisciplinary effort to assign realistic source parameters to models of volcanic ash-cloud transport and dispersion during eruptions
Larry G. Mastin, Marianne C. Guffanti, R. Servranckx, P. Webley, S. Barsotti, K. Dean, A. Durant, John W. Ewert, A. Neri, W.I. Rose, David J. Schneider, Lee Siebert, B. Stunder, G. Swanson, A. Tupper, A. Volentik, Christopher F. Waythomas
2009, Journal of Volcanology and Geothermal Research (186) 10-21
During volcanic eruptions, volcanic ash transport and dispersion models (VATDs) are used to forecast the location and movement of ash clouds over hours to days in order to define hazards to aircraft and to communities downwind. Those models use input parameters, called “eruption source parameters”, such as plume height H,...
Using a coupled groundwater/surfacewater model to predict climate-change impacts to lakes in the Trout Lake watershed, Northern Wisconsin
John F. Walker, Randall J. Hunt, Steven L. Markstrom, Lauren E. Hay, John Doherty
2009, Conference Paper, Planning for an uncertain future - Monitoring, integration, and adaptation (SIR2009-5049)
A major focus of the U.S. Geological Survey’s Trout Lake Water, Energy, and Biogeochemical Budgets (WEBB) project is the development of a watershed model to allow predictions of hydrologic response to future conditions including land-use and climate change. The coupled groundwater/surface-water model GSFLOW was chosen for this purpose because it...
The stable carbon isotope biogeochemistry of acetate and other dissolved carbon species in deep subseafloor sediments at the northern Cascadia Margin
Verena B. Heuer, John W. Pohlman, Marta E. Torres, Marcus Elvert, Kai-Uwe Hinrichs
2009, Geochimica et Cosmochimica Acta (73) 3323-3336
Ocean drilling has revealed the existence of vast microbial populations in the deep subseafloor, but to date little is known about their metabolic activities. To better understand the biogeochemical processes in the deep biosphere, we investigate the stable carbon isotope chemistry of acetate and other...
The geology of Hotei Regio, Titan: Correlation of Cassini VIMS and RADAR
L.A. Soderblom, R. H. Brown, J.M. Soderblom, J. W. Barnes, R. L. Kirk, Christophe Sotin, R. Jaumann, D. J. MacKinnon, D.W. Mackowski, K. H. Baines, B. J. Buratti, R. N. Clark, P. D. Nicholson
2009, Icarus (204) 610-618
Joint Cassini VIMS and RADAR SAR data of ∼700-km-wide Hotei Regio reveal a rich collection of geological features that correlate between the two sets of images. The degree of correlation is greater than anywhere else seen on Titan. Central to Hotei Regio is a basin filled with cryovolcanic flows that...
High resolution near-bed observations in winter near Cape Hatteras, North Carolina
M. Martini, B. Armstrong, J.C. Warner
2009, Conference Paper, MTS/IEEE Biloxi - Marine Technology for Our Future: Global and Local Challenges, OCEANS 2009
The U.S. Geological Survey (USGS) Coastal and Marine Science Center in Woods Hole, Massachusetts, is leading an effort to understand the regional sediment dynamics along the coastline of North and South Carolina. As part of the Carolinas Coastal Change Processes Project, a geologic framework study in June of 2008 by...
