delta 15N and non-carbonate delta 13C values for two petroleum source rock reference materials and a marine sediment reference material
Kristin O. Dennen, Craig A. Johnson, Marshall L. Otter, Steven R. Silva, Gregory A. Wandless
2006, Open-File Report 2006-1071
Samples of United States Geological Survey (USGS) Certified Reference Materials USGS Devonian Ohio Shale (SDO-1), and USGS Eocene Green River Shale (SGR-1), and National Research Council Canada (NRCC) Certified Marine Sediment Reference Material (PACS-2), were sent for analysis to four separate analytical laboratories as blind controls for organic rich sedimentary...
Chemical analyses of coal, coal-associated rocks and coal combustion products collected for the National Coal Quality Inventory
Joseph R. Hatch, John H. Bullock Jr., Robert B. Finkelman
2006, Open-File Report 2006-1162
In 1999, the USGS initiated the National Coal Quality Inventory (NaCQI) project to address a need for quality information on coals that will be mined during the next 20-30 years. At the time this project was initiated, the publicly available USGS coal quality data was based on samples primarily collected...
Water resources data, Nevada, water year 2005
Water Resources Division, U.S. Geological Survey
2006, Water Data Report NV-05-1
Geohydrology and water chemistry of the Alexander Valley, Sonoma County, California
Loren F. Metzger, Christopher D. Farrar, Kathryn M. Koczot, Eric G. Reichard
2006, Scientific Investigations Report 2006-5115
This study of the geohydrology and water chemistry of the Alexander Valley, California, was done to provide an improved scientific basis for addressing emerging water-management issues, including potential increases in water demand and changes in flows in the Russian River. The study tasks included (1) evaluation of existing geohydrological, geophysical,...
Potentiometric surface of the Upper Floridan aquifer, west-central Florida, May 2005
A.G. Ortiz, R.A. Blanchard
2006, Open-File Report 2006-1009
The Floridan aquifer system consists of the Upper and Lower Floridan aquifers separated by the middle confining unit. The middle confining unit and the Lower Floridan aquifer in west-central Florida generally contain highly mineralized water. The water-bearing units containing freshwater are herein referred to as the Upper Floridan aquifer. The...
Sensitivity of potential evapotranspiration and simulated flow to varying meteorological inputs, Salt Creek watershed, DuPage County, Illinois
David E. Whitbeck
2006, Open-File Report 2005-1430
The Lamoreux Potential Evapotranspiration (LXPET) Program computes potential evapotranspiration (PET) using inputs from four different meteorological sources: temperature, dewpoint, wind speed, and solar radiation. PET and the same four meteorological inputs are used with precipitation data in the Hydrological Simulation Program-Fortran (HSPF) to simulate streamflow in the Salt Creek watershed,...
Food specialization and radiation of Hawaiian honeycreepers
Paul C. Banko, Winston E. Banko
2006, Acta Zoologica Sinica (52) 253-256
Hawaiian honeycreepers are renowned for adaptive radiation and diet specialization. Specialization arose from competition for the relatively few resources available in this remote archipelago and because arthropod prey sufficient to satisfy nestling protein requirements could only be captured by highly modified bills. Historically, most species fed their nestlings with larvae...
Concentrations, fluxes, and yields of nitrogen, phosphorus, and suspended sediment in the Illinois River basin, 1996-2000
Paul J. Terrio
2006, Scientific Investigations Report 2006-5078
Concentrations, spatial and temporal variations, and fluxes of nitrogen, phosphorus, and suspended sediment were determined for 16 streams in the Illinois River Basin, Illinois from October 1996 through September 2000. Water samples were collected through the National Water-Quality Assessment's Lower Illinois River Basin (LIRB) and Upper Illinois River Basin (UIRB)...
Reply to comment by Y. Ben-Zion on “Material contrast does not predict earthquake rupture propagation direction”
Ruth A. Harris, Steven M. Day
2006, Geophysical Research Letters (33)
No abstract available....
Hydrologic requirements of and consumptive ground-water use by riparian vegetation along the San Pedro River, Arizona
James M. Leenhouts, Juliet C. Stromberg, Russell L. Scott, Sharon J. Lite, Mark Dixon, Tyler Rychener, Elizabeth Makings, David G. Williams, David C. Goodrich, William L. Cable, Lainie R. Levick, Roberta McGuire, Rico M. Gazal, Enrico A. Yepez, Patrick Ellsworth, Travis E. Huxman
2006, Scientific Investigations Report 2005-5163
This study is a coordinated effort by the U.S. Geological Survey (USGS), the U.S. Department of Agriculture, Agricultural Research Service (USDA ARS), and Arizona State University, with assistance from the U.S. Army Corps of Engineers, the University of Wyoming, and the University of Arizona. The specific objectives of the study...
Digital data from the Questa-San Luis and Santa Fe East helicopter magnetic surveys in Santa Fe and Taos Counties, New Mexico, and Costilla County, Colorado
Viki Bankey, V. J. S. Grauch, B. J. Drenth, Geophex Ltd.
2006, Open-File Report 2006-1170
This report contains digital data, image files, and text files describing data formats and survey procedures for aeromagnetic data collected during high-resolution aeromagnetic surveys in southern Colorado and northern New Mexico in December, 2005. One survey covers the eastern edge of the San Luis basin, including the towns of Questa,...
Effects of a remedial system and its operation on volatile organic compound-contaminated ground water, Operable Unit 1, Savage Municipal Well Superfund Site, Milford, New Hampshire, 1998-2004
Philip T. Harte
2006, Scientific Investigations Report 2006-5083
The Savage Municipal Well Superfund site in the Town of Milford, N.H., is underlain by a 0.5-square mile plume of volatile organic compounds (VOCs), mostly tetrachloroethylene (PCE). The plume occurs mostly within a highly transmissive sand and gravel layer, but also extends into underlying till and bedrock. The plume...
Coastal circulation and sediment dynamics in Hanalei Bay, Kaua'i, Hawaii: Part II: Tracking recent fluvial sedimentation: Isotope stratigraphy obtained in Summer 2005
Amy E. Draut, Michael E. Field, Michael H. Bothner, Joshua B. Logan, Michael A. Casso, Sandra M. Baldwin, Curt D. Storlazzi
2006, Open-File Report 2006-1125
Delivery and dispersal of fluvial sediment in Hanalei Bay, Kaua’i, Hawaii, have important implications for the health of local coral reefs. The reef community in Hanalei Bay represents a relatively healthy ecosystem. However, the reefs are periodically stressed by storm waves, and increases in sediment and dissolved substances from the...
Under the Golden Gate Bridge — Views of the sea floor near the entrance to San Francisco Bay, California
Peter Dartnell, Patrick L. Barnard, John L. Chin, Daniel Hanes, Rikk G. Kvitek, Pat J. Iampietro, James V. Gardner
2006, Scientific Investigations Map 2917
San Francisco Bay in Northern California is one of the largest and most altered estuaries within the United States. The sea floor within the bay as well as at its entrance is constantly changing due to strong tidal currents, aggregate mining, dredge disposal, and the creation of new land using...
Physical habitat classification and instream flow modeling to determine habitat availability during low-flow periods, North Fork Shenandoah River, Virginia
Jennifer L. Krstolic, Donald C. Hayes, Peter M. Ruhl
2006, Scientific Investigations Report 2006-5025
Increasing development and increasing water withdrawals for public, industrial, and agricultural water supply threaten to reduce streamflows in the Shenandoah River basin in Virginia. Water managers need more information to balance human water-supply needs with the daily streamflows necessary for maintaining the aquatic ecosystems. To meet the need for comprehensive...
Visualizing the geology of lake trout spawning sites: Northern Lake Michigan
Peter Dartnell, Peter Barnes, James V. Gardner, Kristen Lee
2006, Scientific Investigations Map 2930
Geologists and biologists are working together to understand the links between lake floor geology (composition and shape) and the distribution of lake trout throughout their life cycle. Lake floor geology is one of the main factors determining where lake trout spawn, feed, and hide. In support of ongoing research to...
Land-cover trends in the Mojave basin and range ecoregion
Benjamin M. Sleeter, Christian G. Raumann
2006, Scientific Investigations Report 2006-5098
The U.S. Geological Survey's Land-Cover Trends Project aims to estimate the rates of contemporary land-cover change within the conterminous United States between 1972 and 2000. A random sampling approach was used to select a representative sample of 10-km by 10-km sample blocks and to estimate change within +/- 1 percent...
This dynamic planet: World map of volcanoes, earthquakes, impact craters and plate tectonics
Tom Simkin, Robert I. Tilling, Peter R. Vogt, Stephen H. Kirby, Paul Kimberly, David B. Stewart
2006, IMAP 2800
Our Earth is a dynamic planet, as clearly illustrated on the main map by its topography, over 1500 volcanoes, 44,000 earthquakes, and 170 impact craters. These features largely reflect the movements of Earth's major tectonic plates and many smaller plates or fragments of plates (including microplates). Volcanic eruptions and earthquakes...
Geologic map of the Valle 30' x 60' quadrangle, Coconino County, northern Arizona
George H. Billingsley, Tracey J. Felger, Susan S. Priest
2006, Scientific Investigations Map 2895
The geologic map of the Valle 30' x 60' quadrangle is the result of a cooperative effort between the U.S. Geological Survey and the National Park Service to provide geologic information for regional resource management and visitor information services for Grand Canyon National Park, Arizona. The map area encompasses approximately...
Sea floor topography and backscatter intensity of the Hudson Canyon region offshore of New York and New Jersey
Bradford Butman, David C. Twichell, Peter A. Rona, Brian E. Tucholke, Tammie J. Middleton, James M. Robb
2006, Open-File Report 2004-1441
These maps show the sea floor topography and backscatter intensity of the Hudson Canyon region on the continental slope and rise offshore of New Jersey and New York (fig. 1 and fig. 2). Sheet 1 shows sea floor topography as shaded relief. Sheet 2 shows sea floor topography as shaded...
Trends of Abutment-Scour Prediction Equations Applied to 144 Field Sites in South Carolina
Stephen T. Benedict, Nikhil Deshpande, Nadim M. Aziz, Paul Conrads
2006, Open-File Report 2003-295
The U.S. Geological Survey conducted a study in cooperation with the Federal Highway Administration in which predicted abutment-scour depths computed with selected predictive equations were compared with field measurements of abutment-scour depth made at 144 bridges in South Carolina. The assessment used five equations published in the Fourth Edition of...
Geologic map of the west half of the Blythe 30' by 60' quadrangle, Riverside County, California and La Paz County, Arizona
Paul Stone
2006, Scientific Investigations Map 2922
The Blythe 30' by 60' quadrangle is located along the Colorado River between southeastern California and western Arizona. This map depicts the geology of the west half of the Blythe quadrangle, which is mostly in California. The map area is a desert terrain consisting of mountain ranges surrounded by extensive...
Geologic map of the Mead quadrangle (V-21), Venus
Bruce A. Campbell, David A. Clark
2006, Scientific Investigations Map 2897
The Magellan spacecraft orbited Venus from August 10, 1990, until it plunged into the Venusian atmosphere on October 12, 1994. Magellan Mission objectives included (1) improving the knowledge of the geological processes, surface properties, and geologic history of Venus by analysis of surface radar characteristics, topography, and morphology and (2)...
Summary of surface-water quality, ground-water quality, and water withdrawals for the Spirit Lake Reservation, North Dakota
Kevin C. Vining, Steven W. Cates
2006, Open-File Report 2006-1144
Available surface-water quality, ground-water quality, and water-withdrawal data for the Spirit Lake Reservation were summarized. The data were collected intermittently from 1948 through 2004 and were compiled from U.S. Geological Survey databases, North Dakota State Water Commission databases, and Spirit Lake Nation tribal agencies. Although the quality of surface water...
Water-quality characteristics, including sodium-adsorption ratios, for four sites in the Powder River drainage basin, Wyoming and Montana, water years 2001-2004
Melanie L. Clark, Jon P. Mason
2006, Scientific Investigations Report 2006-5113
The U.S. Geological Survey, in cooperation with the Wyoming Department of Environmental Quality, monitors streams throughout the Powder River structural basin in Wyoming and parts of Montana for potential effects of coalbed natural gas development. Specific conductance and sodium-adsorption ratios may be larger in coalbed waters than in stream waters...
