California GAMA program: Ground-water quality data in the northern San Joaquin Basin Study Unit, 2005
George L. V Bennett V, Kenneth Belitz, Barbara J. Milby Dawson
2006, Data Series 196
Growing concern over the closure of public-supply wells because of ground-water contamination has led the State Water Board to establish the Ground-Water Ambient Monitoring and Assessment (GAMA) Program. With the aid of the U.S. Geological Survey (USGS) and Lawrence Livermore National Laboratory, the program goals are to enhance understanding and...
Nutrients in streams and rivers across the nation — 1992–2001
David K. Mueller, Norman E. Spahr
2006, Scientific Investigations Report 2006-5107
Nutrient compounds of nitrogen and phosphorus were investigated in streams and rivers sampled as part of the U.S. Geological Survey National Water-Quality Assessment (NAWQA) Program. Nutrient data were collected in 20 NAWQA study units during 1992-95, 16 study units during 1996-98, and 15 study units during 1999-2001. To facilitate...
Simulation of Water Levels and Salinity in the Rivers and Tidal Marshes in the Vicinity of the Savannah National Wildlife Refuge, Coastal South Carolina and Georgia
Paul Conrads, Edwin A. Roehl, Ruby C. Daamen, Wiley M. Kitchens
2006, Scientific Investigations Report 2006-5187
The Savannah Harbor is one of the busiest ports on the East Coast of the United States and is located downstream from the Savannah National Wildlife Refuge, which is one of the Nation?s largest freshwater tidal marshes. The Georgia Ports Authority and the U.S. Army Corps of Engineers funded hydrodynamic...
Preliminary geologic map of the White Sulphur Springs 30' x 60' Quadrangle, Montana
Mitchell W. Reynolds, Theodore R. Brandt
2006, Open-File Report 2006-1329
The geologic map of the White Sulphur Springs 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 the geologically complex area in west-central Montana. The quadrangle encompasses about 4,235 km2 (1,635 mi2), across part...
Ground-water modeling of the Death Valley Region, Nevada and California
W.R. Belcher, C.C. Faunt, D. S. Sweetkind, J.B. Blainey, C. A. San Juan, R. J. Laczniak, M. C. Hill
2006, Fact Sheet 2006-3120
The Death Valley regional ground-water flow system (DVRFS) of southern Nevada and eastern California covers an area of about 100,000 square kilometers and contains very complex geology and hydrology. Using a computer model to represent the complex system, the U.S. Geological Survey simulated ground-water flow in the Death Valley region...
Preliminary integrated geologic map databases for the United States: Digital data for the generalized bedrock geologic map, Yukon Flats region, east-central Alaska
Alison B. Till, Julie A. Dumoulin, Jeffrey D. Phillips, Richard G. Stanley, Jessie Crews
2006, Open-File Report 2006-1304
The growth in the use of Geographic Information Systems (GIS) has highlighted the need for digital geologic maps that have been attributed with information about age and lithology. Such maps can be conveniently used to generate derivative maps for manifold special purposes such as mineral-resource assessment, metallogenic studies, tectonic studies,...
Base-flow yields of watersheds in the Berkeley County area, West Virginia
Ronald D. Evaldi, Katherine S. Paybins
2006, Data Series 216
Base-flow yields at approximately 50 percent of the annual mean ground-water recharge rate were estimated for watersheds in the Berkeley County area, W.Va. These base-flow yields were determined from two sets of discharge measurements made July 25-28, 2005, and May 4, 2006. Two sections of channel along Opequon Creek had...
Thematic mapper-derived mineral distribution maps of Idaho, Nevada, and western Montana
Gary L. Raines
2006, Data Series 185
This report provides mineral distribution maps based on TM spectral information of minerals commonly associated with hydrothermal alteration in Nevada, Idaho, and western Montana. The product of the processing is provided as four ESRI GRID files with 30 m resolution by state. UTM Zone 11 projection is used for Nevada...
Creation of GIS compatible, historic detailed soil data sets for the Collier and Miami-Dade Counties, Florida
John Jones
2006, Open-File Report 2006-1315
When soils data are in digital format compatible with geographic information systems (GIS), a wide variety of analyses and display capabilities are afforded. Detailed information on soils that may be important to Everglades ecosystem restoration has been created in hardcopy form using traditional soils mapping techniques. However, accurate conversion of...
Annual ground-water discharge by evapotranspiration from areas of spring-fed riparian vegetation along the eastern margin of Death Valley, 2000-02
Randell J. Laczniak, J. LaRue Smith, Guy A. DeMeo
2006, Scientific Investigations Report 2006-5145
Flow from major springs and seeps along the eastern margin of Death Valley serves as the primary local water supply and sustains much of the unique habitat in Death Valley National Park. Together, these major spring complexes constitute the terminus of the Death Valley Regional Ground-Water Flow System--one of the...
Bathymetric contour maps for lakes surveyed in Iowa in 2003
S. Mike Linhart, Kris D. Lund
2006, Scientific Investigations Map 2933
The U.S. Geological Survey, in cooperation with the Iowa Department of Natural Resources (IDNR), conducted bathymetric surveys on four lakes in Iowa during 2003 (Don Williams Lake, Easter Lake, Lake Macbride, and Lake Meyer). The purpose of the surveys is to provide the IDNR with information for the development of...
Geologic map of the Wrangell-Saint Elias National Park and Preserve, Alaska
2006, Scientific Investigations Map 2877
Wrangell-Saint Elias National Park and Preserve, the largest national park within the U.S. National Park Service system, extends from the northern Pacific Ocean to beyond the eastern Alaska Range into interior Alaska. It features impressively spectacular scenery such as high and craggy mountains, active and ancient volcanoes, expansive ice fields,...
Annual trace-metal load estimates and flow-weighted concentrations of cadmium, lead, and zinc, in the Spokane River basin, Idaho and Washington, 1999-2004
Mary M. Donato
2006, Scientific Investigations Report 2006-5188
Streamflow and trace-metal concentration data collected at 10 locations in the Spokane River basin of northern Idaho and eastern Washington during 1999-2004 were used as input for the U.S. Geological Survey software, LOADEST, to estimate annual loads and mean flow-weighted concentrations of total and dissolved cadmium, lead, and zinc.<p...
Data Report: Acetate and Hydrogen Concentrations in Pore Fluids Associated with a Large Gas Hydrate Reservoir, Southern Hydrate Ridge, offshore Oregon, USA
Thomas Lorenson, Frederick S. Colwell, M.E. Delwiche, Jennifer A. Dougherty
Anne M. Trehu, G. Bohrmann, Marta E. Torres, editor(s)
2006, Proceedings of the Ocean Drilling Program: Scientific Results 204-17
Acetate and hydrogen concentrations in pore fluids were measured in samples taken at seven sites from southern Hydrate Ridge (SHR) offshore Oregon, USA. Acetate concentrations ranged from 3.17 to 2515 µM. The maximum acetate concentrations occurred at Site 1251, which was drilled on a slope basin to the east of...
Hydrology and water quality in the Green River and surrounding agricultural areas near Green River in Emery and Grand Counties, Utah, 2004-05
S.J. Gerner, L.E. Spangler, B. A. Kimball, Dale E. Wilberg, D. L. Naftz
2006, Scientific Investigations Report 2006-5186
Water from the Colorado River and its tributaries is used for municipal and industrial purposes by about 27 million people and irrigates nearly 4 million acres of land in the Western United States. Water users in the Upper Colorado River Basin consume water from the Colorado River and its tributaries,...
Assessment of coalbed gas resources in Cretaceous and Tertiary rocks on the North Slope, Alaska, 2006
Steve Roberts, Charles E. Barker, Kenneth J. Bird, Ronald R. Charpentier, Troy Cook, David W. Houseknecht, Timothy R. Klett, Richard M. Pollastro, Christopher J. Schenk
2006, Fact Sheet 2006-3105
The North Slope of Alaska is a vast area of land north of the Brooks Range, extending from the Chukchi Sea eastward to the Canadian border. This Arctic region is known to contain extensive coal deposits; hypothetical coal resource estimates indicate that nearly 4 trillion short tons of coal are...
A history of intertidal flat area in south San Francisco Bay, California: 1858 to 2005
Bruce Jaffe, Amy C. Foxgrover
2006, Open-File Report 2006-1262
A key question in salt pond restoration in South San Francisco Bay is whether sediment sinks created by opening ponds will result in the loss of intertidal flats. Analyses of a series of bathymetric surveys of South San Francisco Bay made from 1858 to 2005 reveal changes in intertidal flat...
Seaside, Oregon tsunami pilot study— Modernization of FEMA flood hazard maps
Tsunami Pilot Study Working Group
2006, Open-File Report 2006-1234
FEMA Flood Insurance Rate Map (FIRM) guidelines do not currently exist for conducting and incorporating tsunami hazard assessments that reflect the substantial advances in tsunami research achieved in the last two decades; this conclusion is the result of two FEMA-sponsored workshops and the associated Tsunami Focused Study. Therefore, as part...
The effects of the Chesapeake Bay impact on calcareous nannofossil assemblages: patterns from the Watkins School core, Newport News, Virginia (USA)
Jessica Shelton, Rowan Lockwood, Laurel M. Bybell
2006, Journal of Nannoplankton Research (28) 71-80
The goal of this study was to assess the effect that the Late Eocene Chesapeake Bay bolide impact had on local patterns of calcareous nannofossil species composition, richness and preservation. Although calcareous nannofossil assemblages have been described from a handful of coreholes drilled within the impact structure, this is the...
Storms and flooding in California in December 2005 and January 2006 — A preliminary assessment
Charles Parrett, Richard A. Hunrichs
2006, Open-File Report 2006-1182
A series of storms beginning before Christmas 2005 and ending after New Year’s Day 2006 produced significant runoff over much of northern California. The storms resulted in an estimated $300 million in damages and Federal disaster declarations in 10 counties. Several precipitation stations in the Sierra Nevada had precipitation totals...
Helicopter electromagnetic and magnetic survey maps and data, East Poplar oil field area, Fort Peck Indian Reservation, northeastern Montana, August 2004
Bruce D. Smith, Joanna N. Thamke, Michael J. Cain, Christa Tyrrell, Patricia L. Hill
2006, Open-File Report 2006-1216
This report is a data release for a helicopter electromagnetic and magnetic survey that was conducted during August 2004 in a 275-square-kilometer area that includes the East Poplar oil field on the Fort Peck Indian Reservation. The electromagnetic equipment consisted of six different coil-pair orientations that measured resistivity at separate...
Rebuilding Mount St. Helens
Steve P. Schilling, David W. Ramsey, James A. Messerich, Ren A. Thompson
2006, Scientific Investigations Map 2928
On May 18, 1980, Mount St. Helens, Washington exploded in a spectacular and devastating eruption that shocked the world. The eruption, one of the most powerful in the history of the United States, removed 2.7 cubic kilometers of rock from the volcano's edifice, the bulk of which had been constructed...
Measurements of wind, aeolian sand transport, and precipitation in the Colorado River corridor, Grand Canyon, Arizona: January 2005 to January 2006
Amy E. Draut, David M. Rubin
2006, Open-File Report 2006-1188
This report presents measurements of aeolian sediment-transport rates, wind speed and direction, and precipitation records from six locations that contain aeolian deposits in the Colorado River corridor through Grand Canyon, Grand Canyon National Park, Arizona. Aeolian deposits, many of which contain and preserve archaeological material, are an important part of...
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...
Geochemical and mineralogical characterization of the abandoned Valzinco (lead-zinc) and Mitchell (gold) mine sites prior to reclamation, Spotsylvania County, Virginia
Jane M. Hammarstrom, Adam N. Johnson, Robert R. Seal II, Allen L. Meier, Paul L. Briggs, Nadine M. Piatak
2006, Scientific Investigations Report 2006-5085
The Virginia gold-pyrite belt, part of the central Virginia volcanic-plutonic belt, hosts numerous abandoned metal mines. The belt extends from about 50 km south of Washington, D.C., for approximately 175 km to the southwest into central Virginia. The rocks that comprise the belt include metamorphosed volcanic and clastic (noncarbonate) sedimentary...
