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Page 1875, results 46851 - 46875

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Not all publications have extents, not all extents are completely accurate
Intrinsic controls on the range of volumes, morphologies, and dimensions of submarine lobes
A. Prelat, J.A. Covault, D.M. Hodgson, A. Fildani, S.S. Flint
2010, Sedimentary Geology (232) 66-76
Submarine lobe dimensions from six different systems are compared: 1) the exhumed Permian Fan 3 lobe complex of the Tanqua Karoo, South Africa; 2) the modern Amazon fan channel-mouth lobe complex, offshore Brazil; 3) a portion of the modern distal Za??re fan, offshore Angola/Congo; 4) a Pleistocene fan of the...
Sedimentary basins reconnaissance using the magnetic Tilt-Depth method
A. Salem, S. Williams, E. Samson, D. Fairhead, D. Ravat, R.J. Blakely
2010, Exploration Geophysics (41) 198-209
We compute the depth to the top of magnetic basement using the Tilt-Depth method from the best available magnetic anomaly grids covering the continental USA and Australia. For the USA, the Tilt-Depth estimates were compared with sediment thicknesses based on drilling data and show a correlation of 0.86 between the...
Response to Germann's "Comment on 'theory for source-responsive and free-surface film modeling of unsaturated flow'"
J. R. Nimmo
2010, Vadose Zone Journal (9) 1102-1104
Germann's (2010) comment helpfully presents supporting evidence that I have missed, notes items that need clarification or correction, and stimulates discussion of what is needed for improved theory of unsaturated flow. Several points from this comment relate not only to specific features of the content of my paper (Nimmo, 2010),...
A protozoal-associated epizootic impacting marine wildlife: Mass-mortality of southern sea otters (Enhydra lutris nereis) due to Sarcocystis neurona infection
M.A. Miller, P.A. Conrad, M. Harris, B. Hatfield, G. Langlois, David A. Jessup, S.L. Magargal, A.E. Packham, S. Toy-Choutka, A.C. Melli, M.A. Murray, F.M. Gulland, M.E. Grigg
2010, Veterinary Parasitology (172) 183-194
During April 2004, 40 sick and dead southern sea otters (Enhydra lutris nereis) were recovered over 18 km of coastline near Morro Bay, California. This event represented the single largest monthly spike in mortality ever recorded during 30 years of southern sea otter stranding data collection. Because of the point-source...
Occurrence of avian Plasmodium and West Nile virus in culex species in Wisconsin
T. Hughes, P. Irwin, E. Hofmeister, S.M. Paskewitz
2010, Journal of the American Mosquito Control Association (26) 24-31
The occurrence of multiple pathogens in mosquitoes and birds could affect the dynamics of disease transmission. We collected adult Culex pipiens and Cx. restuans (Cx. pipiens/restuans hereafter) from sites in Wisconsin and tested them for West Nile virus (WNV) and for avian malaria (Plasmodium). Gravid Cx. pipiens/restuans were tested for...
Numerical simulation of a low-lying barrier island's morphological response to Hurricane Katrina
C.A. Lindemer, N.G. Plant, Jack A. Puleo, D.M. Thompson, T.V. Wamsley
2010, Coastal Engineering (57) 985-995
Tropical cyclones that enter or form in the Gulf of Mexico generate storm surge and large waves that impact low-lying coastlines along the Gulf Coast. The Chandeleur Islands, located 161. km east of New Orleans, Louisiana, have endured numerous hurricanes that have passed nearby. Hurricane Katrina (landfall near Waveland MS,...
Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: Average Atmospheric (Wet) Deposition of Inorganic Nitrogen, 2002
Michael Wieczorek, Andrew E. LaMotte
2010, Data Series 491-02
This tabular data set represents the average atmospheric (wet) deposition, in kilograms per square kilometer, of inorganic nitrogen for the year 2002 compiled for every catchment for MRB_E2RF1 of Major River Basins (MRBs, Crawford and others, 2006). The source data set for wet deposition was from the USGS's raster data...
Fault-related clay authigenesis along the Moab Fault: Implications for calculations of fault rock composition and mechanical and hydrologic fault zone properties
J.G. Solum, N.C. Davatzes, D.A. Lockner
2010, Journal of Structural Geology (32) 1899-1911
The presence of clays in fault rocks influences both the mechanical and hydrologic properties of clay-bearing faults, and therefore it is critical to understand the origin of clays in fault rocks and their distributions is of great importance for defining fundamental properties of faults in the shallow crust. Field mapping...
Caldera collapse: Perspectives from comparing Galápagos volcanoes, nuclear-test sinks, sandbox models, and volcanoes on Mars
K. A. Howard
2010, GSA Today (20) 4-10
The 1968 trapdoor collapse (1.5 km3) of Fernandina caldera in the Galapágos Islands developed the same kinds of structures as found in small sandbox-collapse models and in concentrically zoned sinks formed in desert alluvium by fault subsidence into underground nuclear-explosion cavities. Fernandina’s collapse developed through shear failure in which the...
Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: Surficial Geology
Michael Wieczorek, Andrew E. LaMotte
2010, Data Series 491-25
This tabular data set represents the area of surficial geology types in square meters compiled for every MRB_E2RF1 catchment of selected Major River Basins (MRBs, Crawford and others, 2006). The source data set is the "Digital data set describing surficial geology in the conterminous US" (Clawges and Price, 1999).The MRB_E2RF1...
Rehabilitation for bilateral amputation of fingers
Martin A. Stapanian, Adrienne Stapanian, Keith E. Staley
2010, American Journal of Occupational Therapy (64) 923-928
We describe reconstructive surgeries, therapy, prostheses, and adaptations for a patient who experienced bilateral amputation of all five fingers of both hands through the proximal phalanges in January 1992. The patient made considerable progress in the use of his hands in the 10 mo after amputation, including nearly a 120%...
Analysis of the Arctic system for freshwater cycle intensification: Observations and expectations
M.A. Rawlins, M. Steele, M.M. Holland, J.C. Adam, J.E. Cherry, J.A. Francis, P.Y. Groisman, L. D. Hinzman, T.G. Huntington, D.L. Kane, J.S. Kimball, R. Kwok, R.B. Lammers, C.M. Lee, D.P. Lettenmaier, K.C. McDonald, E. Podest, J.W. Pundsack, B. Rudels, Mark C. Serreze, A. Shiklomanov, O. Skagseth, T.J. Troy, C. J. Vorosmarty, M. Wensnahan, E.F. Wood, R. Woodgate, D. Yang, K. Zhang, T. Zhang
2010, Journal of Climate (23) 5715-5737
Hydrologic cycle intensification is an expected manifestation of a warming climate. Although positive trends in several global average quantities have been reported, no previous studies have documented broad intensification across elements of the Arctic freshwater cycle (FWC). In this study, the authors examine the character and quantitative significance of changes...
Future dryness in the Southwest US and the hydrology of the early 21st century drought
D.R. Cayan, T. Das, D.W. Pierce, T.P. Barnett, Mary Tyree, A. Gershunova
2010, Proceedings of the National Academy of Sciences of the United States of America (107) 21271-21276
Recently the Southwest has experienced a spate of dryness, which presents a challenge to the sustainability of current water use by human and natural systems in the region. In the Colorado River Basin, the early 21st century drought has been the most extreme in over a century of Colorado River...
Evaluating propagation method performance over time with Bayesian updating: An application to incubator testing
Sarah J. Converse, J. N. Chandler, Glenn H. Olsen, C. C. Shafer
Barry K. Hartup, Richard P. Urbanek, editor(s)
2010, Book chapter, Proceedings of the Eleventh North American Crane Workshop
In captive-rearing programs, small sample sizes can limit the quality of information on performance of propagation methods. Bayesian updating can be used to increase information on method performance over time. We demonstrate an application to incubator testing at USGS Patuxent Wildlife Research Center. A new type of incubator was purchased...
Mapping of road-salt-contaminated groundwater discharge and estimation of chloride load to a small stream in southern New Hampshire, USA
P. T. Harte, P.R. Trowbridge
2010, Hydrological Processes (24) 2349-2368
Concentrations of chloride in excess of State of New Hampshire water-quality standards (230 mg/l) have been measured in watersheds adjacent to an interstate highway (I-93) in southern New Hampshire. A proposed widening plan for I-93 has raised concerns over further increases in chloride. As part of this effort, road-salt-contaminated groundwater...
Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: Basin Characteristics, 2002 Geospatial_Data_Presentation_Form: tabular digital data
Michael Wieczorek, Andrew E. LaMotte
2010, Data Series 491-03
This tabular data set represents basin characteristics for the year 2002 compiled for every MRB_E2RF1 catchment of selected Major River Basins (MRBs, Crawford and others, 2006). These characteristics are reach catchment shape index, stream density, sinuosity, mean elevation, mean slope and number of road-stream crossings. The source data...
Gene movement and genetic association with regional climate gradients in California valley oak (Quercus lobata Née) in the face of climate change
Victoria L. Sork, Frank W. Davis, Robert Westfall, Alan L. Flint, Makihiko Ikegami, Hongfang Wang, Delphine Grivet
2010, Molecular Ecology (19) 3806-3823
Rapid climate change jeopardizes tree populations by shifting current climate zones. To avoid extinction, tree populations must tolerate, adapt, or migrate. Here we investigate geographic patterns of genetic variation in valley oak, Quercus lobata Née, to assess how underlying genetic structure of populations might influence this species’ ability...
Seismic performance assessment of base-isolated safety-related nuclear structures
Y.-N. Huang, A.S. Whittaker, N. Luco
2010, Earthquake Engineering and Structural Dynamics (39) 1421-1442
Seismic or base isolation is a proven technology for reducing the effects of earthquake shaking on buildings, bridges and infrastructure. The benefit of base isolation has been presented in terms of reduced accelerations and drifts on superstructure components but never quantified in terms of either a percentage reduction in seismic...
Stable isotope analysis and satellite tracking reveal interspecific resource partitioning of nonbreeding albatrosses off Alaska
R.M. Suryan, K.N. Fischer
2010, Canadian Journal of Zoology (88) 299-305
Albatrosses (Diomedeidae) are the most threatened family of birds globally. The three North Pacific species (Phoebastria Reichenbach, 1853) are listed as either endangered or vulnerable, with the population of Short-tailed Albatross (Phoebastria albatrus (Pallas, 1769)) less than 1% of its historical size. All North Pacific albatross species do not currently...
Arsenic in groundwater in the North Carolina Eastern slate belt (Esb): Nash and halifax counties, north carolina
J.C. Reid, W.T. Haven, D.D. Eudy, R.M. Milosh, E.G. Stafford
2010, Southeastern Geology (47) 117-122
Naturally occurring arsenic-contaminated groundwater is present within the Eastern Slate Belt (ESB) of North Carolina. Long-term, integrated geologic and geo-chemical investigations havedetermined the presence of arsenic by analyzing precipitates from first and second order streams under base flow conditions. When groundwater discharges into streams, arsenic and other metals are precipitated...
A physiologically based toxicokinetic model for methylmercury in female American kestrels
J.W. Nichols, R.S. Bennett, R. Rossmann, John B. French, K.G. Sappington
2010, Environmental Toxicology and Chemistry (29) 1854-1867
A physiologically based toxicokinetic (PBTK) model was developed to describe the uptake, distribution, and elimination of methylmercury (CH 3Hg) in female American kestrels. The model consists of six tissue compartments corresponding to the brain, liver, kidney, gut, red blood cells, and remaining carcass. Additional compartments describe the elimination of CH3Hg...
Summary of the Second International Planetary Dunes Workshop: Planetary Analogs - Integrating Models, Remote Sensing, and Field Data, Alamosa, Colorado, USA, May 18-21, 2010
L.K. Fenton, M.A. Bishop, M.C. Bourke, C.S. Bristow, R.K. Hayward, B.H. Horgan, N. Lancaster, T.I. Michaels, D. Tirsch, T.N. Titus, A. Valdez
2010, Conference Paper, Aeolian Research
The Second International Planetary Dunes Workshop took place in Alamosa, Colorado, USA from May 18-21, 2010. The workshop brought together researchers from diverse backgrounds to foster discussion and collaboration regarding terrestrial and extra-terrestrial dunes and dune systems. Two and a half days were spent on five oral sessions and one...
Variations in coal characteristics and their possible implications for CO2 sequestration: Tanquary injection site, southeastern Illinois, USA
D.G. Morse, Maria Mastalerz, A. Drobniak, J.A. Rupp, S. Harpalani
2010, International Journal of Coal Geology (84) 25-38
As part of the U.S. Department of Energy's Regional Sequestration Partnership program, the potential for sequestering CO2 in the largest bituminous coal reserve in United States - the Illinois Basin - is being assessed at the Tanquary site in Wabash County, southeastern Illinois. To accomplish the main project objectives, which...
The Reimer Diatom Herbarium: An important resource for teaching and research
S.J. Rushforth, M.B. Edlund, S. A. Spaulding, E. F. Stoermer
2010, Conference Paper, Proceedings of the Academy of Natural Sciences of Philadelphia
The Reimer Diatom Herbarium (ILH) at Iowa Lakeside Laboratory (ILL), a field station of Iowa's state universities, contains 3,280 permanent diatom slides of collections made from prairie potholes, alkaline fens, acid bogs, eutrophic lakes, saline lakes, Pleistocene paleolakes, and Miocene fossil deposits near ILL. The herbarium has a focus on...