Archeomagnetic dating in western North America: An updated reference curve based on paleomagnetic and archeomagnetic data sets
Jonathan T. Hagstrum, Eric Blinman
2010, Geochemistry, Geophysics, Geosystems (11)
[1] A robust database of paleomagnetic (PM) and archeomagnetic (AM) data for western North America covering the past 4 millennia is assembled from three data sets: (1) published PM data for dated lava flows, (2) recently published AM data generated by R. L. DuBois, and (3) published AM data generated...
Salmon carcasses increase stream productivity more than inorganic fertilizer pellets: A test on multiple trophic levels in streamside experimental channels
Mark S. Wipfli, John P. Hudson, John P. Caouette, N.L. Mitchell, Joanna L. Lessard, Ron A. Heintz, D. T. Chaloner
2010, Transactions of the American Fisheries Society (139) 824-839
Inorganic nutrient amendments to streams are viewed as possible restoration strategies for re-establishing nutrients and stream productivity throughout the western coast of North America, where salmon runs and associated marine-derived nutrient subsidies have declined. In a mesocosm experiment, we examined the short-term (6 weeks) comparative effects of artificial nutrient pellets...
Erosion of tilted fault blocks and deposition of coarse sediments in half-graben basins during late stages of extension: Gold Butte area, Basin and Range Province
Keith A. Howard, Sue Beard, M. A. Kuntz, Michael J. Kunk, Andrei M. Sarna-Wojcicki, M. E. Perkins, Ivo Lucchitta
2010, GSA Special Papers (463) 147-170
The provenance and stratigraphic architecture of basin-filling Miocene sediments around the Gold Butte area, southern Nevada, and adjacent highlands record the erosion of fault blocks that progressively tilted during extension. This study focuses especially on upper Miocene correlatives of the red sandstone unit and the Muddy Creek Formation that were...
Comparison of atmospheric mercury speciation and deposition at nine sites across central and eastern North America
Mark A. Engle, Michael T. Tate, David P. Krabbenhoft, James J Schauer, Allan Kolker, James B. Shanley, Michael Bothner
2010, Journal of Geophysical Research (115)
This study presents >5 cumulative years of tropospheric mercury (Hg) speciation measurements, over the period of 2003–2009, for eight sites in the central and eastern United States and one site in coastal Puerto Rico. The purpose of this research was to identify local and regional processes that impact Hg speciation...
Aquifer characteristics near cuestas and their relation to rock tensile strength
Roger H. Morin, William H. Schulz
James LoCoco, editor(s)
2010, Conference Paper
Along the northeast coast of North America, extensional tectonic processes have generated lithologic and topographic features that are common to several rift basins. A cap of igneous rock overlies sedimentary rock to form a cuesta with both rock types exposed along a steep ridge flank. Field studies investigating the near‐surface...
Estimating carcass persistence and scavenging bias in a human‐influenced landscape in western Alaska
Paul L. Flint, Ellen W. Lance, Kristine M. Sowl, Tyrone F. Donnelly
2010, Journal of Field Ornithology (81) 206-214
We examined variation in persistence rates of waterfowl carcasses placed along a series of transects in tundra habitats in western Alaska. This study was designed to assess the effects of existing tower structures and was replicated with separate trials in winter, summer and fall as both the resident avian population...
Topographic complexity and roughness of a tropical benthic seascape
David G. Zawada, Clifford J. Hearn, Gregory Piniak
2010, Geophysical Research Letters (37)
Topographic complexity is a fundamental structural property of benthic marine ecosystems that exists across all scales and affects a multitude of processes. Coral reefs are a prime example, for which this complexity has been found to impact water flow, species diversity, nutrient uptake, and wave-energy dissipation, among other properties. Despite...
Geochemical data for core and bottom-sediment samples collected in 2007 from Grand Lake O' the Cherokees, northeast Oklahoma
David L. Fey, Mark F. Becker, Kathleen S. Smith
2010, Open-File Report 2010-1298
Grand Lake O' the Cherokees is a large reservoir in northeast Oklahoma, below the confluence of the Neosho and Spring Rivers, both of which drain the Tri-State Mining District to the north. The Tri-State district covers an area of 1,200 mi2 (3,100 km2) and comprises Mississippi Valley-type lead-zinc deposits. A...
Forecasting the effects of land-use and climate change on wildlife communities and habitats in the lower Mississippi Valley
Stephen P. Faulkner
2010, Fact Sheet 2010-3112
Landscape patterns and processes reflect both natural ecosystem attributes and the policy and management decisions of individual Federal, State, county, and private organizations. Land-use regulation, water management, and habitat conservation and restoration efforts increasingly rely on landscape-level approaches that incorporate scientific information into the decision-making process. Since management actions are...
Comprehensive database of wellbore temperatures and drilling mud weight pressures by depth for Judge Digby field, Louisiana
Lauri Burke
2010, Open-File Report 2010-1303
This document serves as the repository for the unprocessed data used in the investigation of temperature and overpressure relations within the deep Tuscaloosa Formation in Judge Digby field. It is a compilation of all the publicly accessible wellbore temperature and pressure data for Judge Digby field, a prolific natural gas...
Two mechanisms of aquatic and terrestrial habitat change along an Alaskan Arctic coastline
Christopher D. Arp, Benjamin M. Jones, Joel A. Schmutz, Frank E. Urban, M. Torre Jorgenson
2010, Polar Biology (33) 1629-1640
Arctic habitats at the interface between land and sea are particularly vulnerable to climate change. The northern Teshekpuk Lake Special Area (N-TLSA), a coastal plain ecosystem along the Beaufort Sea in northern Alaska, provides habitat for migratory waterbirds, caribou, and potentially, denning polar bears. The 60-km coastline of N-TLSA is...
CO2calc: A User-Friendly Seawater Carbon Calculator for Windows, Mac OS X, and iOS (iPhone)
L. L. Robbins, M. E. Hansen, J.A. Kleypas, S.C. Meylan
2010, Open-File Report 2010-1280
A user-friendly, stand-alone application for the calculation of carbonate system parameters was developed by the U.S. Geological Survey Florida Shelf Ecosystems Response to Climate Change Project in response to its Ocean Acidification Task. The application, by Mark Hansen and Lisa Robbins, USGS St. Petersburg, FL, Joanie Kleypas, NCAR, Boulder, CO,...
Reducing Uncertainty in the Distribution of Hydrogeologic Units within Volcanic Composite Units of Pahute Mesa Using High-Resolution 3-D Resistivity Methods, Nevada Test Site, Nevada
Brian D. Rodriguez, Don Sweetkind, Bethany L. Burton
2010, Open-File Report 2010-1304
The U.S. Department of Energy (DOE) and the National Nuclear Security Administration (NNSA) at their Nevada Site Office (NSO) are addressing groundwater contamination resulting from historical underground nuclear testing through the Environmental Management program and, in particular, the Underground Test Area (UGTA) project. From 1951 to 1992, 828 underground nuclear...
Improved USGS methodology for assessing continuous petroleum resources using analogs
Ronald R. Charpentier, Troy Cook
2010, Open-File Report 2010-1309
The currently used U.S. Geological Survey methodology for assessing continuous (unconventional) petroleum resources of the United States was developed in the 1990s. This methodology poorly incorporates uncertainty about the estimated ultimate recoveries (EURs). This is especially problematic for hypothetical assessment units where this may be the largest source of uncertainty...
Quantifying canal leakage rates using a mass-balance approach and heat-based hydraulic conductivity estimates in selected irrigation canals, western Nebraska, 2007 through 2009
Christopher M. Hobza, Michael J. Andersen
2010, Scientific Investigations Report 2010-5226
The water supply in areas of the North Platte River Basin in the Nebraska Panhandle has been designated as fully appropriated or overappropriated by the Nebraska Department of Natural Resources (NDNR). Enacted legislation (Legislative Bill 962) requires the North Platte Natural Resources District (NPNRD) and the NDNR to develop an...
Bird migration patterns in the arid southwest-Final report
Janet M. Ruth, Rodney K. Felix, Robert H. Dieh
2010, Open-File Report 2010-1271
To ensure full life-cycle conservation, we need to understand migrant behavior en route and how migrating species use stopover and migration aerohabitats. In the Southwest, birds traverse arid and mountainous landscapes in migration. Migrants are known to use riparian stopover habitats; we know less about how migrant density varies across...
Reconnaissance of Macondo-1 well oil in sediment and tarballs from the northern Gulf of Mexico shoreline, Texas to Florida
Robert J. Rosenbauer, Pamela L. Campbell, Angela Lam, T.D. Lorenson, Frances D. Hostettler, Burt Thomas, Florence L. Wong
2010, Open-File Report 2010-1290
Hydrocarbons were extracted and analyzed from sediment and tarballs collected from the northern Gulf of Mexico (nGOM) coast that is potentially impacted by Macondo-1 (M-1) well oil. The samples were analyzed for a suite of diagnostic geochemical biomarkers. Aided by multivariate statistical analysis, the M-1 well oil has been identified...
Water-level altitudes 2010 and water-level changes in the Chicot, Evangeline, and Jasper aquifers and compaction 1973-2009 in the Chicot and Evangeline aquifers, Houston-Galveston region, Texas
Mark C. Kasmarek, Michaela R. Johnson, Jason K. Ramage
2010, Scientific Investigations Map 3138
Most of the subsidence in the Houston-Galveston region has occurred as a direct result of groundwater withdrawals for municipal supply, industrial use, and irrigation that depressured and dewatered the Chicot and Evangeline aquifers causing compaction of the clay layers of the aquifer sediments. This report, prepared by the U.S. Geological...
Baseline survey for rare plant species and native plant communities within the Kamehameha Schools 'Lupea Safe Harbor Planning Project Area, North Kona District, Island of Hawai'i
James Jacobi, F. R. Warshauer, Jonathan Price
2010, Technical Report HCSU-020
Kamehameha Schools, in conjunction with several federal, state, and private organizations, has proposed to conduct conservation management on approximately 5,340 ha (~13,200 acres) of land they own in the vicinity of Kīpukalupea in the North Kona District on the island of Hawai'i. The goal of this program is to restore...
Internet-based interface for STRMDEPL08
Howard W. Reeves, A. Jeremiah Asher
2010, Open-File Report 2010-1247
The core of the computer program STRMDEPL08 that estimates streamflow depletion by a pumping well with one of four analytical solutions was re-written in the Javascript software language and made available through an internet-based interface (web page). In the internet-based interface, the user enters data for one of the four...
Vegetation and substrate on aeolian landscapes in the Colorado River corridor, Cataract Canyon, Utah
Amy E. Draut, Elizabeth R. Gillette
2010, Open-File Report 2010-1273
Vegetation and substrate data presented in this report characterize ground cover on aeolian landscapes of the Colorado River corridor through Cataract Canyon, Utah, in Canyonlands National Park. The 27-km-long Cataract Canyon reach has undergone less anthropogenic alteration than other reaches of the mainstem Colorado River. Characterizing ecosystem parameters there provides...
Streamflow, water quality, and constituent loads and yields, Scituate Reservoir drainage area, Rhode Island, water year 2009
Robert F. Breault, Kirk P. Smith
2010, Open-File Report 2010-1275
Streamflow and water-quality data were collected by the U.S. Geological Survey (USGS) or the Providence Water Supply Board (PWSB), Rhode Island's largest drinking-water supplier. Streamflow was measured or estimated by the USGS following standard methods at 23 streamgage stations; 13 of these stations were also equipped with instrumentation capable of...
Development of monitoring protocols to detect change in rocky intertidal communities of Glacier Bay National Park and Preserve
Gail V. Irvine
2010, Open-File Report 2010-1283
Glacier Bay National Park and Preserve in southeastern Alaska includes extensive coastlines representing a major proportion of all coastlines held by the National Park Service. The marine plants and invertebrates that occupy intertidal shores form highly productive communities that are ecologically important to a number of vertebrate and invertebrate consumers...
Geophysical and sampling data from the inner continental shelf: Northern Cape Cod Bay, Massachusetts
Brian D. Andrews, Seth D. Ackerman, Wayne E. Baldwin, Walter A. Barnhardt
2010, Open-File Report 2010-1006
The U.S. Geological Survey (USGS) and the Massachusetts Office of Coastal Zone Management (CZM) have cooperated to map approximately 480 km2 of the inner continental shelf in northern Cape Cod Bay, MA. This report contains geophysical and sampling data collected by the USGS during five research cruises between 2006 and...
Scale-invariant stress orientations and seismicity rates near the San Andreas Fault
Amy Day-Lewis, Mark D. Zoback, Stephen H. Hickman
2010, Geophysical Research Letters (37)
We analyzed measurements of the direction of maximum horizontal compressive stress as a function of depth in two scientific research wells near the San Andreas Fault in central and southern California. We found that the stress orientations exhibit scale-invariant fluctuations over intervals from tens of cm to several km. Similarity...