Field-trip guide to volcanic and volcaniclastic deposits of the lower Jurassic Talkeetna formation, Sheep Mountain, south-central Alaska
Amy E. Draut, Peter D. Clift, Robert B. Blodgett
2006, Open-File Report 2006-1124
This guide provides information for a one-day field trip in the vicinity of Sheep Mountain, just north of the Glenn Highway in south-central Alaska. The Lower Jurassic Talkeetna Formation, consisting of extrusive volcanic and volcaniclastic sedimentary rocks of the Talkeetna arc complex, is exposed on and near Sheep Mountain. Field-trip...
Along-Track Reef Imaging System (ATRIS)
John Brock, Dave Zawada
2006, Fact Sheet 2006-3051
"Along-Track Reef Imaging System (ATRIS)" describes the U.S. Geological Survey's Along-Track Reef Imaging System, a boat-based sensor package for rapidly mapping shallow water benthic environments. ATRIS acquires high resolution, color digital images that are accurately geo-located in real-time....
Geological interpretation of bathymetric and backscatter imagery of the sea floor off eastern Cape Cod, Massachusetts
Larry J. Poppe, Valerie F. Paskevich, Bradford Butman, Seth D. Ackerman, William W. Danforth, Dave S. Foster, Dann S. Blackwood
2006, Open-File Report 2005-1048
The imagery, interpretive data layers, and data presented herein were derived from multibeam echo-sounder data collected off Eastern Cape Cod, Massachusetts, and from the stations occupied to verify these acoustic data. The basic data layers show sea-floor topography, sun-illuminated shaded relief, and backscatter intensity; interpretive layers show the distributions of...
Chapter 4: The GIS Project for the Geologic Assessment of Undiscovered Oil and Gas in the Upper Cretaceous Navarro and Taylor Groups, Western Gulf Province, Texas
Laura Biewick
2006, Data Series 69-H-4
A geographic information system (GIS) focusing on the Upper Cretaceous Navarro and Taylor Groups in the Gulf Coast region was developed as a visual-analysis tool for the U.S. Geological Survey's 2003 assessment of undiscovered, technically recoverable oil and natural gas resources in the Western Gulf Province. The Central Energy Resources...
Topographic map of the western region of Dao Vallis in Hellas Planitia, Mars; MTM 500k -40/082E OMKT
Mark R. Rosiek, Bonnie L. Redding, Donna M. Galuszka
2006, Scientific Investigations Map 2926
This map, compiled photogrammetrically from Viking Orbiter stereo image pairs, is part of a series of topographic maps of areas of special scientific interest on Mars. Contours were derived from a digital terrain model (DTM) compiled on a digital photogrammetric workstation using Viking Orbiter stereo image pairs with orientation parameters...
Water resources data, Florida, water year 2005. Volume 1A: northeast Florida - Surface water
A.P. Nazarian, E.P. Simonds, S.M. Dickerson
2006, Water Data Report FL-05-1A
Water resources data for the 2005 water year in Florida consist of continuous or daily discharge for 429 streams, periodic discharge for 9 streams, continuous or daily stage for 218 streams, periodic stage for 5 streams, peak stage and discharge for 28 streams; continuous or daily elevations for 15 lakes,...
Organochlorine compounds and current-use pesticides in snow and lake sediment in Rocky Mountain National Park, Colorado, and Glacier National Park, Montana, 2002-03
M. Alisa Mast, William T. Foreman, Serena V. Skaates
2006, Scientific Investigations Report 2006-5119
Organochlorine compounds and current-use pesticides were measured in snow and lake-sediment samples from Rocky Mountain National Park in Colorado and Glacier National Park in Montana to determine their occurrence and distribution in high-elevation aquatic ecosystems. The U.S. Geological Survey, in cooperation with the National Park Service, collected snow samples...
usSEABED: Gulf of Mexico and Caribbean (Puerto Rico and U.S. Virgin Islands) offshore surficial sediment data release
Brian J. Buczkowski, Jane A. Reid, Chris J. Jenkins, Jamey M. Reid, S. Jeffress Williams, James G. Flocks
2006, Data Series 146
Over the past 50 years there has been an explosion in scientific interest, research effort and information gathered on the geologic sedimentary character of the United States continental margin. Data and information from thousands of publications have greatly increased our scientific understanding of the geologic origins of the shelf surface...
Water resources data, Alaska, water year 2005
Melanie L. Jackson, M.E. Castor, J.M. Goetz, G. L. Solin, J.M. Wiles
2006, Water Data Report AK-05-1
Water resources data for the 2005 water year for Alaska consist of records of stage, discharge, and water quality of streams; stages of lakes; and water levels and water quality of ground water. This volume contains records for water discharge at 114 gaging stations; stage or contents only at 3...
Effects of urbanization on stream ecosystems in the South Platte River basin, Colorado and Wyoming
Lori A. Sprague, Robert E. Zuellig, Jean A. Dupree
2006, Scientific Investigations Report 2006-5101-A
This report describes the effects of urbanization on physical, chemical, and biological characteristics of stream ecosystems in 28 basins along an urban land-use gradient in the South Platte River Basin, Colorado and Wyoming, from 2002 through 2003. Study basins were chosen to minimize natural variability among basins due to factors...
Dynamics of diffusive bubble growth and pressure recovery in a bubbly rhyolitic melt embedded in an elastic solid
Bernard A. Chouet, Phillip B. Dawson, Masaru Nakano
2006, Geosciences (111)
We present a model of gas exsolution and bubble expansion in a melt supersaturated in response to a sudden pressure drop. In our model, the melt contains a suspension of gas bubbles of identical sizes and is encased in a penny-shaped crack embedded in an elastic solid. The...
Aftershock decay, productivity, and stress rates in Hawaii: Indicators of temperature and stress from magma sources
Fred W. Klein, Tom Wright, Jennifer Nakata
2006, Journal of Geophysical Research B: Solid Earth (111)
We examined dozens of aftershock sequences in Hawaii in terms of Gutenberg-Richter and modified Omori law parameters. We studied p, the rate of aftershock decay; Ap, the aftershock productivity, defined as the observed divided by the expected number of aftershocks; and c, the time delay when aftershock rates begin to...
Hydrologic Requirements of and Evapotranspiration by Riparian Vegetation along the San Pedro River, Arizona
James M. Leenhouts, Julie C. Stromberg, Russell L. Scott
2006, Fact Sheet 2006-3027
This report summarizes analyses of riparian system hydrologic requirements and ground-water use detailed in U.S. Geological Survey Scientific Investigations Report 2005-5163, 'Hydrologic requirements of and consumptive ground-water use by riparian vegetation along the San Pedro River, Arizona,' compiled by J.M. Leenhouts, J.C. Stromberg, and R.L. Scott....
Timing and Duration of Flow in Ephemeral Streams of the Sierra Vista Subwatershed of the Upper San Pedro Basin, Cochise County, Southeastern Arizona
Bruce Gungle
2006, Scientific Investigations Report 2005-5190
Frequency, timing, and duration of streamflow were monitored in 20 ephemeral-stream channels across the Sierra Vista Subwatershed of the Upper San Pedro Basin, southeastern Arizona, during an 18-month period. One channel (Walnut Gulch) had Agricultural Research Service streamflow-gaging stations in place. The sediments of the remaining 19 ephemeral-stream channels were...
Gas desorption and adsorption isotherm studies of coals in the Powder River basin, Wyoming and adjacent basins in Wyoming and North Dakota
Gary D. Stricker, Romeo M. Flores, Dwain E. McGarry, Dean P. Stillwell, Daniel J. Hoppe, Cathy R. Stillwell, Alan M. Ochs, Margaret S. Ellis, Karl S. Osvald, Sharon L. Taylor, Marjorie C. Thorvaldson, Michael H. Trippi, Sherry D. Grose, Fred J. Crockett, Asghar J. Shariff
2006, Open-File Report 2006-1174
The U.S. Geological Survey (USGS), in cooperation with the State Office, Reservoir Management Group (RMG), of the Bureau of Land Management (BLM) in Casper (Wyoming), investigated the coalbed methane resources (CBM) in the Powder River Basin, Wyoming and Montana, from 1999 to the present. Beginning in late 1999, the study...
Hydraulic and field water-chemistry characteristics of piedmont alluvial deposits in the Middle Tyger River near Lyman, Spartanburg County, South Carolina, 2005
Larry G. Harrelson, Adrian D. Addison
2006, Scientific Investigations Report 2006-5133
This study explores the possibility of developing a bank-filtration process to improve water quality in which alluvial deposits serve as a natural sand filter to pretreat water to be used as a secondary drinking-water source in a small piedmont reservoir along the Middle Tyger River near Lyman in Spartanburg County,...
Urban seismic hazard mapping for Memphis, Shelby County, Tennessee
Joan Gomberg
2006, Fact Sheet 2005-3142
Earthquakes cannot be predicted, but scientists can forecast how strongly the ground is likely to shake as a result of an earthquake. Seismic hazard maps provide one way of conveying such forecasts. The U.S. Geological Survey (USGS), which produces seismic hazard maps for the Nation, is now engaged in developing...
1976 Big Thompson flood, Colorado — Thirty years later
Robert D. Jarrett, John E. Costa
2006, Fact Sheet 2006-3095
In the early evening of Saturday, July 31, 1976, a large stationary thunderstorm released as much as 7.5 inches of rainfall in about an hour (about 12 inches in a few hours) in the middle reaches of the Big Thompson River Basin and to a lesser extent in parts of...
The Laramide Mesa formation and the Ojo de Agua caldera, southeast of the Cananea copper mining district, Sonora, Mexico
Dennis P. Cox, Robert J. Miller, Keith L. Woodbourne
2006, Scientific Investigations Report 2006-5022
The Mesa Formation extends from Cananea, Mexico, southeast to the Sonora River and is the main host rock of Laramide porphyry copper deposits in the Cananea District and at the Alacran porphyry prospect to the east. The Mesa consists of two members-a lower andesite and an upper dacite. The lowest...
Assessment of Undiscovered Gas Resources of the Eastern Oregon and Washington Province, 2006
Michael E. Brownfield, Marilyn E. Tennyson, Thomas S. Ahlbrandt, Ronald R. Charpentier, Troy A. Cook, Timothy R. Klett, Richard M. Pollastro, Christopher J. Schenk
2006, Fact Sheet 2006-3091
Using a geology-based assessment methodology, the U.S. Geological Survey estimated a mean of 2.4 trillion cubic feet (TCF) of undiscovered natural gas in the Eastern Oregon and Washington Province. More than 90 percent, or 2.1 TCF, of the estimated undiscovered natural gas is continuous gas estimated to be trapped in...
Fish communities and related environmental conditions of the lower Boise River, southwestern Idaho, 1974-2004
Dorene E. MacCoy
2006, Scientific Investigations Report 2006-5111
Within the last century, the lower Boise River has been transformed from a meandering, braided, gravel-bed river that supported large runs of salmon to a channelized, regulated, urban river that provides flood control and irrigation water to more than 1,200 square miles of land. An understanding of the current status...
Soil data at sites near Geneva Lake, Lake Geneva, Wisconsin, and Long Lake, near New Auburn, Wisconsin
David J. Graczyk, Steven R. Greb
2006, Open-File Report 2006-1191
The goals of this project are to describe how water moves through shallow soil and how vegetated buffers influence this flow. This was accomplished by using a series of soil-moisture probes which track the lateral and vertical movement of water during natural and artificial rainfall/runoff events. The purpose of this...
Low-flow, base-flow, and mean-flow regression equations for Pennsylvania streams
Marla H. Stuckey
2006, Scientific Investigations Report 2006-5130
Low-flow, base-flow, and mean-flow characteristics are an important part of assessing water resources in a watershed. These streamflow characteristics can be used by watershed planners and regulators to determine water availability, water-use allocations, assimilative capacities of streams, and aquatic-habitat needs. Streamflow characteristics are commonly predicted by use of regression equations...
A preliminary assessment of mouflon abundance at the Kahuku Unit of Hawaii Volcanoes National Park
Steven C. Hess, Ben Kawakami Jr., David Okita, Keola Medeiros
2006, Open-File Report 2006-1193
Hawaii Volcanoes National Park (HAVO) recently acquired the 115,653 acre Kahuku Ranch unit adjacent to the existing Mauna Loa section of HAVO. Kahuku contains numerous exceptional natural resources including many federally listed threatened and endangered species. An apparently large and growing population of alien mouflon sheep (Ovis gmelini musimon), however,...
Occurrence of trihalomethanes in the nation's ground water and drinking-water supply wells, 1985-2002
Bryan D. Schaap, John S. Zogorski
2006, Scientific Investigations Report 2006-5068
This report describes the occurrence of trihalomethanes (THMs) in the Nation's ground water and drinking-water supply wells based on analysis of 5,642 samples of untreated ground water and source water collected or compiled during 1985-2002 by the U.S. Geological Survey National Water-Quality Assessment (NAWQA) Program. THMs are a group of...
