Preliminary geologic map of the Townsend 30' x 60' quadrangle, Montana
Mitchell W. Reynolds, Theodore R. Brandt
2006, Open-File Report 2006-1138
The geologic map of the Townsend quadrangle, scale 1:100,000, was made as part of the Montana Investigations Project to provide new information on the stratigraphy, structure, and geologic history of this geologically complex area in west-central Montana. The quadrangle encompasses about 4,200 square km (1,640 square mi)....
Research opportunities in interdisciplinary ground-water science in the U.S. Geological Survey
W. E. Sanford, Jonathan S. Caine, D.A. Wilcox, H.C. McWreath, J.R. Nicholas
2006, Circular 1293
This report is written for the scientifically literate reader but is not limited to those who are involved in ground-water science. The report is intended to encourage U.S. Geological Survey scientists to develop a sense of excitement about ground-water science in the agency, to inform scientists about existing and potential...
Water-quality and lake-stage data for Wisconsin lakes, water year 2005
W. J. Rose, H.S. Garn, G. L. Goddard, S.B. Marsh, D.L. Olson, Dale M. Robertson
2006, Open-File Report 2006-1080
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. The purpose of this report is to provide information...
Two-dimensional resistivity investigation along West Fork Trinity River, Naval Air Station-Joint Reserve Base Carswell Field, Fort Worth, Texas, October 2004
Sachin D. Shah, Gregory P. Stanton
2006, Data Series 178
Naval Air Station-Joint Reserve Base Carswell Field (NAS-JRB) at Fort Worth, Tex., constitutes a government-owned, contractor-operated facility that has been in operation since 1942. Contaminants, primarily volatile organic compounds and metals, have entered the ground-water-flow system through leakage from waste-disposal sites and manufacturing processes. Ground water flows from west to...
Documentation of a spreadsheet for time-series analysis and drawdown estimation
Keith J. Halford
2006, Scientific Investigations Report 2006-5024
Drawdowns during aquifer tests can be obscured by barometric pressure changes, earth tides, regional pumping, and recharge events in the water-level record. These stresses can create water-level fluctuations that should be removed from observed water levels prior to estimating drawdowns. Simple models have been developed for estimating unpumped water levels...
Constraints on the age and provenance of the Chugach accretionary complex from detrital zircons in the Sitka Graywacke near Sitka, Alaska
Peter J. Haeussler, George E. Gehrels, Susan M. Karl
2006, Professional Paper 1709-F
The Sitka Graywacke is the westernmost and youngest unit of the Chugach accretionary complex in southeastern Alaska. Using laser-ablation inductively coupled plasma mass spectroscopy, we obtained 492 detrital-zircon ages on seven typical samples of Sitka Graywacke turbidites, which were collected in a transect across much of the unit near Sitka,...
Hydrogeologic investigation of the middle San Pedro watershed, southeastern Arizona: A project of the Rural Watershed Initiative
Blakemore E. Thomas
2006, Fact Sheet 2006-3034
In 2005, the U.S. Geological Survey (USGS) began an investigation of the hydrogeology of the middle San Pedro watershed in cooperation with the Arizona Department of Water Resources (ADWR). This project is part of the Rural Watershed Initiative (RWI), which is a program established by the State of Arizona and...
Estimation of shallow ground-water recharge in the Great Lakes basin
B.P. Neff, A.R. Piggott, R. A. Sheets
2006, Scientific Investigations Report 2005-5284
This report presents the results of the first known integrated study of long-term average ground-water recharge to shallow aquifers (generally less than 100 feet deep) in the United States and Canada for the Great Lakes, upper St. Lawrence, and Ottawa River Basins. The approach used was consistent throughout the study...
Hydrogeologic investigation of the Detrital, Hualapai, and Sacramento valleys of northwestern Arizona: a project of the Rural Watershed Initiative
David W. Anning, Marilyn E. Flynn, Margot Truini
2006, Fact Sheet 2006-3008
An evaluation and review of water-use estimates and flow data for the Lower Klamath and Tule Lake National Wildlife Refuges, Oregon and California
John C. Risley, Marshall W. Gannett
2006, Scientific Investigations Report 2006-5036
The Lower Klamath and Tule Lake National Wildlife Refuges, located in the upper Klamath Basin of Oregon and California, encompass approximately 46,700 and 39,100 acres, respectively. Demand for water in the semiarid upper Klamath Basin has increased in recent years, resulting in the need to better quantify water availability and...
Geomorphic characteristics and classification of Duluth-area streams, Minnesota
Faith A. Fitzpatrick, Marie C. Peppler, Michele M. DePhilip, Kathy Lee
2006, Scientific Investigations Report 2006-5029
In 2003 and 2004, a geomorphic assessment of streams in 20 watersheds in the Duluth, Minn., area was conducted to identify and summarize geomorphic characteristics, processes, disturbance mechanisms, and potential responses to disturbance. Methods used to assess the streams included watershed characterization, descriptions of segment slopes and valley types, historical...
National Urbanization Monitoring Assessment (NUMA)
Dave Hester
2006, Fact Sheet 2006-3040
A core geographic science element of the U.S. Geological Survey's Geographic Analysis and Monitoring (GAM) Program is to monitor land-surface change for the Nation through time. The Nation's land surface is dynamically evolving and transitioning in response to natural and human processes. The need to understand the transformations and locations where...
Characterization of organic matter in lake sediments from Minnesota and Yellowstone National Park
Walter E. Dean
2006, Open-File Report 2006-1053
Samples of sediment from lakes in Minnesota and Yellowstone National Park (YNP) were analyzed for organic carbon (OC), hydrogen richness by Rock-Eval pyrolysis, and stable carbon- and nitrogen-isotope composition of bulk organic matter. Values of delta 13C of lake plankton tend to be around -28 to -32 parts per thousand...
Landslides triggered by the October 8, 2005, Pakistan earthquake and associated landslide-dammed reservoirs
Edwin L. Harp, Anthony J. Crone
2006, Open-File Report 2006-1052
The October 8, 2005, Kashmir earthquake (M 7.6) triggered several thousand landslides, mainly rock falls and rock slides, in the epicentral area near the cities of Muzafarrabad and Balakot, Pakistan. Most of these were shallow, coalescing rock slides emanating from highly sheared and deformed limestone and dolomite of the Precambrian...
Interpolation of reconnaissance multibeam bathymetry from north-central Long Island Sound
Lawrence J. Poppe, Seth D. Ackerman, Elizabeth F. Doran, Andrew L. Beaver, Jim M. Crocker, P.T. Schattgen
2006, Open-File Report 2005-1145
Introduction The U.S. Geological Survey (USGS), in cooperation with the National Oceanic and Atmospheric Administration (NOAA) and the Connecticut Department of Environmental Protection (CT DEP), has produced detailed maps of the sea floor in Long Island Sound, a major East Coast estuary surrounded by the most densely populated region of the...
Summary of Environmental Monitoring and Assessment Program (EMAP) activities in South Dakota, 2000–2004
Allen J. Heakin, Kathleen M. Neitzert, Jeffrey S. Shearer
2006, Scientific Investigations Report 2006-5007
The U.S. Environmental Protection Agency (USEPA) initiated data-collection activities for the Environmental Monitoring and Assessment Program-West (EMAP-West) in South Dakota during 2000. The objectives of the study were to develop the monitoring tools necessary to produce unbiased estimates of the ecological condition of surface waters across a large geographic area...
Submarine radial vents on Mauna Loa Volcano, Hawai'i
V. Dorsey Wanless, M.O. Garcia, F. A. Trusdell, J.M. Rhodes, M.D. Norman, Dominique Weis, D.J. Fornari, M.D. Kurz, Herve Guillou
2006, Geochemistry, Geophysics, Geosystems (7)
A 2002 multibeam sonar survey of Mauna Loa's western flank revealed ten submarine radial vents and three submarine lava flows. Only one submarine radial vent was known previously. The ages of these vents are constrained by eyewitness accounts, geologic relationships, Mn-Fe coatings, and geochemical stratigraphy; they range from 128 years...
The Environmental Monitoring and Assessment Program (EMAP)-West: Summary of activities and accomplishments in South Dakota, 2000-2004
Allen J. Heakin, Kathleen M. Neitzert
2006, Fact Sheet 2006-3001
The Environmental Monitoring and Assessment Program (EMAP)-West was initiated in South Dakota in 2000 by the U.S. Environmental Protection Agency (USEPA). The two primary objectives of the surface waters component of EMAP-West were to (1) develop the monitoring tools (biological indicators, stream survey design, estimates of reference condition) necessary...
Fate and transport of petroleum hydrocarbons in soil and ground water at Big South Fork National River and Recreation Area, Tennessee and Kentucky, 2002-2003
Shannon D. Williams, David E. Ladd, James Farmer
2006, Scientific Investigations Report 2005-5104
In 2002 and 2003, the U.S. Geological Survey (USGS), by agreement with the National Park Service (NPS), investigated the effects of oil and gas production operations on ground-water quality at Big South Fork National River and Recreation Area (BISO) with particular emphasis on the fate and transport of petroleum hydrocarbons...
Sinkhole flooding in Murfreesboro, Rutherford County, Tennessee, 2001-02
Mike Bradley, Gregg Edward Hileman
2006, Scientific Investigations Report 2005-5281
The U.S. Geological Survey, in cooperation with the City of Murfreesboro, Tennessee, conducted an investigation from January 2001 through April 2002 to delineate sinkholes and sinkhole watersheds in the Murfreesboro area and to characterize the hydrologic response of sinkholes to major rainfall events. Terrain analysis was used to define sinkholes...
Closure to “Standard penetration test-based probabilistic and deterministic assessment of seismic soil liquefaction potential” by K. Onder Cetin, Raymond B. Seed, Armen Der Kiureghian, Kohji Tokimatsu, Leslie F. Harder Jr., Robert E. Kayen, and Robert E. S. Moss
K. Onder Cetin, Raymond B. Seed, Armen Der Kiureghian, Kohji Tokimatsu, Leslie F. Harder Jr., Robert E. Kayen, Robb E. S. Moss
2006, Journal of Geotechnical and Geoenvironmental Engineering (132) 667-669
No abstract available....
Infrasonic array observations at I53US of the 2006 Augustine Volcano eruptions
C.R. Wilson, J.V. Olson, Curt A.L. Szuberla, Steve McNutt, Guy Tytgat, Douglas P. Drob
2006, InfraMatics (13) 11-25
The recent January 2006 Augustine eruptions, from the 11th to the 28th, have produced a series of 12 infrasonic signals that were observed at the I53US array at UAF. the eruption times for the signals were provided by the...
Effects of spatially variable resolution on field-scale estimates of tracer concentration from electrical inversions using Archie's law
Kamini Singha, Steven M. Gorelick
2006, Geophysics (71) G83-G91
Two important mechanisms affect our ability to estimate solute concentrations quantitatively from the inversion of field-scale electrical resistivity tomography (ERT) data: (1) the spatially variable physical processes that govern the flow of current as well as the variation of physical properties in space and (2) the overparameterization of inverse models,...
Applications of geophysical methods to volcano monitoring
Jeff Wynn, Daniel Dzurisin, Carol A. Finn, James P. Kauahikaua, Richard G. Lahusen
2006, Conference Paper, 19th Symposium on the Application of Geophysics to Engineering and Environmental Problems (SAGEEP 2006): Geophysical applications for environmental and engineering hazards - Advances and constraints
The array of geophysical technologies used in volcano hazards studies - some developed originally only for volcano monitoring - ranges from satellite remote sensing including InSAR to leveling and EDM surveys, campaign and telemetered GPS networks, electronic tiltmeters and strainmeters, airborne magnetic and electromagnetic surveys, short-period and broadband seismic...
New products from the shuttle radar topography mission
Dean B. Gesch, Tom Farr, James Slater, Jan-Peter Muller, Sally Cook
2006, Eos, Transactions, American Geophysical Union (87) 174
New data products with broad applicability to the Earth sciences are now available from the Shuttle Radar Topography Mission (SRTM). SRTM, a joint project of the National Geospatial-Intelligence Agency (NGA) and NASA, flew aboard the Space Shuttle Endeavour on an 11-day mission in February 2000 with the goal of collecting...
