Stream-sediment samples reanalyzed for major, rare earth, and trace elements from seven 1:250,000-scale quadrangles, south-central Alaska, 2007-09
Bruce M. Gamble, Elizabeth A. Bailey, Nora B. Shew, Keith A. Labay, Jeanine M. Schmidt, Richard M. O’Leary, David E. Detra
2010, Data Series 532
During the 1960s through the 1980s, the U.S. Geological Survey conducted reconnaissance geochemical surveys of drainage basins throughout most of the Iliamna, Lake Clark, Lime Hills, and Talkeetna 1:250,000-scale quadrangles and parts of the McGrath, Seldovia, and Tyonek 1:250,000-scale quadrangles in Alaska. These geochemical surveys provide data necessary to assess...
Estimates of groundwater age from till and carbonate bedrock hydrogeologic units at Jefferson Proving Ground, Southeastern Indiana, 2007-08
Paul M. Buszka, David C. Lampe, Amanda L. Egler
2010, Scientific Investigations Report 2010-5178
During 2007-08, the U.S. Geological Survey, in cooperation with the U.S. Department of the Army, conducted a study to evaluate the relative age of groundwater in Pre-Wisconsinan till and underlying shallow and deep carbonate bedrock units in and near an area at Jefferson Proving Ground (JPG), southeastern Indiana, which was...
Methods for estimating the magnitude and frequency of peak streamflows for unregulated streams in Oklahoma
Jason M. Lewis
2010, Scientific Investigations Report 2010-5137
Peak-streamflow regression equations were determined for estimating flows with exceedance probabilities from 50 to 0.2 percent for the state of Oklahoma. These regression equations incorporate basin characteristics to estimate peak-streamflow magnitude and frequency throughout the state by use of a generalized least squares regression analysis. The most statistically significant independent...
Estimates for self-supplied domestic withdrawals and population served for selected principal aquifers, calendar year 2005
Molly A. Maupin, Terri Arnold
2010, Open-File Report 2010-1223
The National Water-Quality Assessment Program of the U.S. Geological Survey has groundwater studies that focus on water-quality conditions in principal aquifers of the United States. The Program specifically focuses on aquifers that are important to public supply, domestic, and other major uses. Estimates for self-supplied domestic withdrawals and the population...
Water quality and hydrology of the Silver River Watershed, Baraga County, Michigan, 2005-08
Thomas L. Weaver, Daniel J. Sullivan, Cynthia M. Rachol, James M. Ellis
2010, Scientific Investigations Report 2010-5050
The Silver River Watershed comprises about 69 square miles and drains part of northeastern Baraga County, Michigan. For generations, tribal members of the Keweenaw Bay Indian Community have hunted and fished in the watershed. Tribal government and members of Keweenaw Bay Indian Community are concerned about the effect of any...
Land-cover change in the Ozark Highlands, 1973-2000
Krista A. Karstensen
2010, Open-File Report 2010-1198
Led by the Geographic Analysis and Monitoring Program of the U.S. Geological Survey (USGS) in collaboration with the U.S. Environmental Protection Agency (EPA) and the National Aeronautics and Space Administration (NASA), the Land-Cover Trends Project was initiated in 1999 and aims to document the types, geographic distributions, and rates of...
Endocrine active chemicals and endocrine disruption in Minnesota streams and lakes: Implications for aquatic resources, 1994-2008
Kathy Lee, Heiko L. Schoenfuss, Larry B. Barber, Jeff H. Writer, Vicki Blazer, Richard L. Keisling, Mark L. Ferrey
2010, Scientific Investigations Report 2010-5107
The U.S. Geological Survey, in cooperation with St. Cloud State University, Minnesota Department of Health, Minnesota Pollution Control Agency, Minnesota Department of Natural Resources, Metropolitan Council Environmental Services, and the University of Minnesota, has conducted field monitoring studies and laboratory research to determine the presence of endocrine active chemicals and...
Dependence of frictional strength on compositional variations of Hayward fault rock gouges
Carolyn A. Morrow, Diane E. Moore, David A. Lockner
2010, Open-File Report 2010-1184
The northern termination of the locked portion of the Hayward Fault near Berkeley, California, is found to coincide with the transition from strong Franciscan metagraywacke to melange on the western side of the fault. Both of these units are juxtaposed with various serpentinite, gabbro and graywacke units to the east,...
MATLAB tools for improved characterization and quantification of volcanic incandescence in Webcam imagery: Applications at Kilauea Volcano, Hawai'i
Matthew R. Patrick, James P. Kauahikaua, Loren Antolik
2010, Techniques and Methods 13-A1
Webcams are now standard tools for volcano monitoring and are used at observatories in Alaska, the Cascades, Kamchatka, Hawai‘i, Italy, and Japan, among other locations. Webcam images allow invaluable documentation of activity and provide a powerful comparative tool for interpreting other monitoring datastreams, such as seismicity and deformation. Automated image...
Temperature data from wells in Long Valley Caldera, California
Christopher Farrar, Jacob DeAngelo, Colin Williams, Frederick Grubb, Shaul Hurwitz
2010, Data Series 523
The 30-by-20-km Long Valley Caldera (LVC) in eastern California (fig.1) formed at 0.76 Ma in a cataclysmic eruption that resulted in the deposition of 600 km? of Bishop Tuff outside the caldera rim (Bailey, 1989). By approximately 0.6 Ma, uplift of the central part of the caldera floor and eruption...
Space geodetic data improve seismic hazard assessment in California: Workshop on incorporating geodetic surface deformation data Into UCERF3; Pomona, California, 1–2 April 2010
E.H. Hearn, K. Johnson, Wayne R. Thatcher
2010, Eos Science News (91) 336-336
A workshop was held to begin scientific consideration of how to incorporate space geodetic constraints on strain rates and fault slip rates into the next generation Uniform California Earthquake Rupture Forecast, version 3 (UCERF3), due to be completed in mid-2012. Principal outcomes of the meeting were (1) an assessment of...
Seismic source mechanism of degassing bursts at Kilauea volcano, Hawaii: Results from waveform inversion in the 10–50 s band
Bernard A. Chouet, Phillip B. Dawson, Mike R. James, S.J. Lane
2010, Journal of Geophysical Research B: Solid Earth (115)
The current (March 2008 to February 2009) summit eruptive activity at Kilauea Volcano is characterized by explosive degassing bursts accompanied by very long period (VLP) seismic signals. We model the source mechanisms of VLP signals in the 10–50 s band using data recorded for 15 bursts with a 10‐station broadband...
Glimpses of East Antarctica: Aeromagnetic and satellite magnetic view from the central Transantarctic Mountains of East Antarctica
Carol A. Finn, John W. Goodge
2010, Journal of Geophysical Research B: Solid Earth (115)
Aeromagnetic and satellite magnetic data provide glimpses of the crustal architecture within the Ross Sea sector of the enigmatic, ice-covered East Antarctic shield critical for understanding both global tectonic and climate history. In the central Transantarctic Mountains (CTAM), exposures of Precambrian basement, coupled with new high-resolution magnetic data, other recent...
A westward extension of the tropical Pacific warm pool leads to March through June drying in Kenya and Ethiopia
A. Park Williams, Christopher C. Funk
2010, Open-File Report 2010-1199
An estimated 14.3 million people are currently (July 2010) food insecure in Kenya and Ethiopia, and the U.S. government has spent more than $972 million on food aid in these two countries since 2009 (USAID, 2010). This insecurity stems from recent drought and rapid population growth that has outpaced agricultural...
Predicted effects of climate warming on the distribution of 50 stream fishes in Wisconsin, U.S.A.
Jana S. Stewart, John D. Lyons, Matt Mitro
2010, Journal of Fish Biology (77) 1867-1898
Summer air and stream water temperatures are expected to rise in the state of Wisconsin, U.S.A., over the next 50 years. To assess potential climate warming effects on stream fishes, predictive models were developed for 50 common fish species using classification-tree analysis of 69 environmental variables in a geographic information...
Geologic cross section, gas desorption, and other data from four wells drilled for Alaska rural energy project, Wainwright, Alaska, coalbed methane project, 2007-2009
Arthur C. Clark, Stephen B. Roberts, Peter D. Warwick
2010, Open-File Report 2010-1210
Energy costs in rural Alaskan communities are substantial. Diesel fuel, which must be delivered by barge or plane, is used for local power generation in most off-grid communities. In addition to high costs incurred for the purchase and transport of the fuel, the transport, transfer, and storage of fuel products...
Geologic controls on the recent evolution of oyster reefs in Apalachicola Bay and St. George Sound, Florida
D. Twichell, L. Edmiston, Brian Andrews, W. Stevenson, J. Donoghue, Richard Z. Poore, Lisa E. Osterman
2010, Estuarine, Coastal and Shelf Science (88) 385-394
Apalachicola Bay and St. George Sound contain the largest oyster fishery in Florida, and the growth and distribution of the numerous oyster reefs here are the combined product of modern estuarine conditions in the bay and its late Holocene evolution. Sidescan-sonar imagery, bathymetry, high-resolution seismic profiles, and sediment cores show...
Groundwater quality in the Lower Hudson River Basin, New York, 2008
Elizabeth A. Nystrom
2010, Open-File Report 2010-1197
Water samples were collected from 32 production and domestic wells in the study area from August through November 2008 to characterize the groundwater quality. The study area, which covers 5,607 square miles, encompasses the part of the Lower Hudson River Basin that lies within New York plus the parts of...
Near-field receiving water monitoring of trace metals and a benthic community near the Palo Alto Regional Water Quality Control Plant in South San Francisco Bay, California; 2009
Jessica Dyke, Janet K. Parchaso, Janet K. Thompson, Daniel J. Cain, Samuel N. Luoma, Michelle I. Hornberger
2010, Open-File Report 2010-1188
Results reported herein include trace element concentrations in sediment and in the clam Macoma petalum (formerly reported as Macoma balthica(Cohen and Carlton, 1995)), clam reproductive activity, and benthic macroinvertebrate community structure for a mudflat one kilometer south of the discharge of the Palo Alto Regional Water Quality Control Plant (PARWQCP) in South San...
Magmatic sulfide-rich nickel-copper deposits related to picrite and (or) tholeiitic basalt dike-sill complexes: A preliminary deposit model
Klaus J. Schulz, Val W. Chandler, Suzanne W. Nicholson, Nadine M. Piatak, Robert R. Seal II, Laurel G. Woodruff, Michael L. Zientek
2010, Open-File Report 2010-1179
Magmatic sulfide deposits containing nickel (Ni) and copper (Cu), with or without (±) platinum-group elements (PGEs), account for approximately 60 percent of the world’s Ni production and are active exploration targets in the United States and elsewhere. On the basis of their principal metal production, magmatic sulfide deposits in mafic...
Numerical simulation of the groundwater-flow system in tributary subbasins and vicinity, lower Skagit River basin, Skagit and Snohomish Counties, Washington
Kenneth H. Johnson, Mark E. Savoca
2010, Scientific Investigations Report 2010-5184
A groundwater-flow model was developed to evaluate the effects of potential groundwater withdrawals and consumptive use on streamflows in tributary subbasins of the lower portion of the Skagit River basin. The study area covers about 155 square miles along the Skagit River and its tributary subbasins (East Fork Nookachamps Creek,...
Catalog of earthquake hypocenters at Alaskan volcanoes: January 1 through December 31, 2009
James P. Dixon, Scott D. Stihler, John A. Power, Cheryl K. Searcy
2010, Data Series 531
Between January 1 and December 31, 2009, the Alaska Volcano Observatory (AVO) located 8,829 earthquakes, of which 7,438 occurred within 20 kilometers of the 33 volcanoes with seismograph subnetworks. Monitoring highlights in 2009 include the eruption of Redoubt Volcano, as well as unrest at Okmok Caldera, Shishaldin Volcano, and Mount...
Conifer health classification for Colorado, 2008
Christopher J. Cole, Suzanne M. Noble, Steven L. Blauer, Beverly A. Friesen, Stacy E. Curry, Mark A. Bauer
2010, Scientific Investigations Map 3103
Colorado has undergone substantial changes in forests due to urbanization, wildfires, insect-caused tree mortality, and other human and environmental factors. The U.S. Geological Survey Rocky Mountain Geographic Science Center evaluated and developed a methodology for applying remotely-sensed imagery for assessing conifer health in Colorado. Two classes were identified for the...
Expanded USGS science in the Chesapeake Bay restoration
Scott Phillips
2010, Fact Sheet 2010-3081
In May 2009, the President issued Executive Order (EO) 13508 for Chesapeake Bay Protection and Restoration. For the first time since the creation of the Chesapeake Bay Program (CBP) in 1983, the full weight of the Federal Government will be used to address the challenges facing the Chesapeake Bay. The...
Approach, passage, and survival of juvenile salmonids at Little Goose Dam, Washington: Post-construction evaluation of a temporary spillway weir, 2009
John W. Beeman, Amy C. Braatz, Hal C. Hansel, Scott D. Fielding, Philip V. Haner, Gabriel S. Hansen, Dana J. Shurtleff, Jamie M. Sprando, Dennis W. Rondorf
2010, Scientific Investigations Report 2010-1224
This report describes a study of dam passage and survival of radio-tagged juvenile salmonids after installation of a temporary spillway weir (TSW) at Little Goose Dam, Washington, in 2009. The purpose of the study was to document fish passage and survival when the dam was operated with the TSW in...
