Wilcox group (Paleocene to Eocene) coals of the Sabine Uplift area, Texas and Louisiana
Robert W. Hook, Peter D. Warwick, John R. SanFilipo
Peter D. Warwick, Alexander K. Karlsen, Matthew D. Merrill, Brett J. Valentine, editor(s)
2011, Book chapter, Geologic assessment of coal in the Gulf of Mexico coastal plain
The Wilcox Group (Paleocene to Eocene) of the Sabine uplift, a structural arch in northeastern Texas and northwestern Louisiana (Figure 1), has lignite zones that approach subbituminous rank (see Chapter 4, this publication). These coals are among the highest quality resources known within the Gulf Coastal Plain because of their...
Introduction: Tectonics, volcanism, and stratigraphy within the evolving transform margin north of San Francisco Bay, California
Victoria E. Langenheim, Donald S. Sweetkind
2011, Geosphere (7) 597-598
No abstract available....
Genetic analysis of scats reveals minimum number and sex of recently documented mountain lions
Ashwin Naidu, Lindsay A. Smythe, Ron W. Thompson, Melanie Culver
2011, Journal of Fish and Wildlife Management (2) 106-111
Recent records of mountain lions Puma concolor and concurrent declines in desert bighorn sheep Ovis canadensis mexicana on Kofa National Wildlife Refuge in Arizona, United States, have prompted investigations to estimate the number of mountain lions occurring there. We performed noninvasive genetic analyses and identified species, individuals, and sex from...
Geology of the Montreal River Monocline (Field trip guidebook)
William F. Cannon
2011, Conference Paper, Proceedings and Abstracts - Institute on Lake Superior Geology. Meeting 57
No abstract available....
Barriers on the brink? The complex intertwined roles of geologic framework, sediment availability and sea-level rise in island evolution
Laura Moore, Jeffrey H. List, S. Jeffress Williams, Kiki Patsch
Julie D. Rosati, Ping Wang, Tiffany M. Roberts, editor(s)
2011, Conference Paper, The proceedings of the Coastal Sediments 2011
Sensitivity experiments in the North Carolina Outer Banks (OBX) have previously revealed that substrate sand proportion, followed by substrate slope, sea-level rise rate and sediment-loss rate are the most important factors in...
Inversion of multi-frequency electromagnetic induction data for 3D characterization of hydraulic conductivity
Troy R. Brosten, Frederick D. Day-Lewis, Gregory M. Schultz, Gary P. Curtis, John W. Lane Jr.
2011, Journal of Applied Geophysics (73) 323-335
Electromagnetic induction (EMI) instruments provide rapid, noninvasive, and spatially dense data for characterization of soil and groundwater properties. Data from multi-frequency EMI tools can be inverted to provide quantitative electrical conductivity estimates as a function of depth. In this study, multi-frequency EMI data collected across an abandoned uranium mill site...
A review of lignite resources of western Tennessee and the Jackson Purchase area, western Kentucky
Paul C. Hackley, Peter D. Warwick, Roger E. Thomas, Douglas J. Nichols
Peter D. Warwick, Alexander K. Karlsen, Matthew D. Merrill, Brett J. Valentine, editor(s)
2011, Book chapter, Geologic assessment of coal in the Gulf of Mexico coastal plain
This review of the lignite deposits of western Tennessee and the Jackson Purchase area in western Kentucky (Figure 1) is an updated report on part of the U.S. Geological Survey's National Coal Resource Assessment of the Gulf Coastal Plain Coal Province (see Ruppert et al., 2002; Hackley et al., 2006;...
Character of shell beds flanking Herod Point Shoal, southeastern Long Island Sound, New York
Lawrence J. Poppe, S. Jeffress Williams, Ivar G. Babb
2011, Journal of Coastal Research (27) 493-501
High biogenic productivity, strong tidal currents, shoal topography, and short transport distances combine to favor shell-bed formation along the lower flanks of a cape-associated shoal off Herod Point on Long Island, New York. This shell bed has a densely packed, clast-supported fabric composed largely of undegraded surf clam (Spisula solidissima)...
Distribution and habitat utilization of the gopher tortoise tick (Amblyomma tuberculatum) in Southern Mississippi
J.R. Ennen, C.P. Qualls
2011, Journal of Parasitology (97) 202-206
The distribution of the gopher tortoise tick (Amblyomma tuberculatum) has been considered intrinsically linked to the distribution of its primary host, gopher tortoises (Gopherus polyphemus). However, the presence of G. polyphemus does not always equate to the presence of A. tuberculatum. There is a paucity of data on the...
New insights from well responses to fluctuations in barometric pressure
J.J. Butler, W. Jin, G.A. Mohammed, E.C. Reboulet
2011, Ground Water (49) 525-533
Hydrologists have long recognized that changes in barometric pressure can produce changes in water levels in wells. The barometric response function (BRF) has proven to be an effective means to characterize this relationship; we show here how it can also be utilized to glean valuable insights into semi-confined aquifer systems....
Monitoring direct and indirect climate effects on whitebark pine ecosystems at Crater Lake National park
S.B. Smith, D.C. Odion, D.A. Sarr, K.M. Irvine
2011, Park Science (28)
Whitebark pine (Pinus albicaulis) is the distinctive, often stunted, and picturesque tree line species in the American West. As a result of climate change, mountain pine beetles (Dendroctonus ponderosae) have moved up in elevation, adding to nonnative blister rust (Cronartium ribicola) disease as a major cause of mortality in whitebark...
Sensitivity of leaf size and shape to climate: Global patterns and paleoclimatic applications
D.J. Peppe, D.L. Royer, B. Cariglino, S.Y. Oliver, S. Newman, E. Leight, G. Enikolopov, M. Fernandez-Burgos, F. Herrera, J.M. Adams, E. Correa, E.D. Currano, J.M. Erickson, L.F. Hinojosa, J.W. Hoganson, A. Iglesias, C.A. Jaramillo, K.R. Johnson, G.J. Jordan, N.J.B. Kraft, E.C. Lovelock, C.H. Lusk, U. Niinemets, J. Penuelas, G. Rapson, S.L. Wing, I.J. Wright
2011, New Phytologist (190) 724-739
Paleobotanists have long used models based on leaf size and shape to reconstruct paleoclimate. However, most models incorporate a single variable or use traits that are not physiologically or functionally linked to climate, limiting their predictive power. Further, they often underestimate paleotemperature relative to other proxies.Here we quantify leaf–climate correlations...
Compositional diversity and geologic insights of the Aristarchus crater from Moon Mineralogy Mapper data
J.F. Mustard, C.M. Pieters, P.J. Isaacson, J.W. Head, S. Besse, R. N. Clark, R.L. Klima, N.E. Petro, M.I. Staid, J.M. Sunshine, C.J. Runyon, S. Tompkins
2011, Journal of Geophysical Research E: Planets (116)
The Moon Mineralogy Mapper (M3) acquired high spatial and spectral resolution data of the Aristarchus Plateau with 140 m/pixel in 85 spectral bands from 0.43 to 3.0 m. The data were collected as radiance and converted to reflectance using the observational constraints and a solar spectrum scaled to the Moon-Sun...
Evaluation of the Global Multi-Resolution Terrain Elevation Data 2010 (GMTED2010) using ICESat geodetic control
C.C. Carabajal, D.J. Harding, J.-P. Boy, Jeffrey J. Danielson, D.B. Gesch, V.P. Suchdeo
2011, Conference Paper, Proceedings of SPIE - The International Society for Optical Engineering
Supported by NASA's Earth Surface and Interior (ESI) Program, we are producing a global set of Ground Control Points (GCPs) derived from the Ice, Cloud and land Elevation Satellite (ICESat) altimetry data. From February of 2003, to October of 2009, ICESat obtained nearly global measurements of land topography (+/- 86deg...
2-D inner-shelf current observations from a single VHF WEllen RAdar (WERA) station
G. Voulgaris, N. Kumar, K.-W. Gurgel, John C. Warner, Jeffrey H. List
2011, Conference Paper, 2011 IEEE/OES/CWTM 10th working conference on current, waves and turbulence measurement, CWTM 2011
The majority of High Frequency (HF) radars used worldwide operate at medium to high frequencies (8 to 30 MHz) providing spatial resolutions ranging from 3 to 1.5 km and ranges from 150 to 50 km. This paper presents results from the deployment of a single Very High Frequency (VHF, 48...
Measurements of Martian dust devil winds with HiRISE
D.S. Choi, Colin M. Dundas
2011, Geophysical Research Letters (38)
We report wind measurements within Martian dust devils observed in plan view from the High Resolution Imaging Science Experiment (HiRISE) orbiting Mars. The central color swath of the HiRISE instrument has three separate charge‐coupled devices (CCDs) and color filters that observe the surface in rapid cadence. Active features, such as...
U.S. DOE methodology for the development of geologic storage potential for carbon dioxide at the national and regional scale
Angela Goodman, J. Alexandra Hakala, Grant Bromhal, Dawn Deel, Traci Rodosta, Scott Frailey, Michael Small, Doug Allen, Vyacheslav Romanov, Jim Fazio, Nicolas Huerta, Dustin McIntyre, Barbara Kutchko, George Guthrie
2011, International Journal of Greenhouse Gas Control (5) 952-965
A detailed description of the United States Department of Energy (US-DOE) methodology for estimating CO2 storage potential for oil and gas reservoirs, saline formations, and unmineable coal seams is provided. The oil and gas reservoirs are assessed at the field level, while saline formations and unmineable coal seams are assessed...
Evidence for the contemporary magmatic system beneath Long Valley Caldera from local earthquake tomography and receiver function analysis
D. Seccia, C. Chiarabba, P. De Gori, I. Bianchi, D.P. Hill
2011, Journal of Geophysical Research B: Solid Earth (116)
We present a new P wave and S wave velocity model for the upper crust beneath Long Valley Caldera obtained using local earthquake tomography and receiver function analysis. We computed the tomographic model using both a graded inversion scheme and a traditional approach. We complement the tomographic I/P model with...
Methodology to assess water presence on speleothems during periods of low precipitation, with implications for recharge sources - Kartchner Caverns, Arizona
Kyle W. Blasch
2011, Journal of Cave and Karst Studies (73) 63-74
Beginning in January 2005, recharge processes and the presence of water on speleothems were monitored in Kartchner Caverns during a 44-month period when annual rainfall rates were 6 to 18 percent below the long-term mean. Electrical-resistance sensors designed to detect the presence of water were used to identify ephemeral streamflow...
Evaluation of Nobuto filter paper strips for the detection of avian influenza virus antibody in waterfowl
Robert J. Dusek, Jeffrey S. Hall, Sean W. Nashold, Joshua L. Teslaa, Hon S. Ip
2011, Avian Diseases (55) 674-676
The utility of using Nobuto paper strips for the detection of avian influenza antibodies was examined in mallards (Anas platyrhynchos) experimentally infected with low pathogenic avian influenza viruses. Blood was collected 2 wk after infection and was preserved either as serum or whole blood absorbed onto Nobuto strips. Analysis of...
Modeling hydrologic and geomorphic hazards across post-fire landscapes using a self-organizing map approach
Michael J. Friedel
2011, Environmental Modelling and Software (26) 1660-1674
Few studies attempt to model the range of possible post-fire hydrologic and geomorphic hazards because of the sparseness of data and the coupled, nonlinear, spatial, and temporal relationships among landscape variables. In this study, a type of unsupervised artificial neural network, called a self-organized map (SOM), is trained using data...
Kin encounter rate and inbreeding avoidance in canids
E. Geffen, M. Kam, R. Hefner, P. Hersteinsson, A. Angerbjorn, L. Dalen, E. Fuglei, K. Noren, J.R. Adams, J. Vucetich, T.J. Meier, L.D. Mech, B.M. Vonholdt, D.R. Stahler, R.K. Wayne
2011, Molecular Ecology (20) 5348-5358
Mating with close kin can lead to inbreeding depression through the expression of recessive deleterious alleles and loss of heterozygosity. Mate selection may be affected by kin encounter rate, and inbreeding avoidance may not be uniform but associated with age and social system. Specifically, selection for kin recognition and inbreeding...
Ecological strategies in california chaparral: Interacting effects of soils, climate, and fire on specific leaf area
Brian Anacker, Nishanta Rajakaruna, David Ackerly, Susan Harrison, Jon E. Keeley, Michael Vasey
2011, Plant Ecology and Diversity (4) 179-188
Background: High values of specific leaf area (SLA) are generally associated with high maximal growth rates in resource-rich conditions, such as mesic climates and fertile soils. However, fire may complicate this relationship since its frequency varies with both climate and soil fertility, and fire frequency selects for regeneration strategies (resprouting...
Incorporating biodiversity into rangeland health: Plant species richness and diversity in great plains grasslands
Amy J. Symstad, Jayne L. Jonas
2011, Rangeland Ecology and Management (64) 555-572
Indicators of rangeland health generally do not include a measure of biodiversity. Increasing attention to maintaining biodiversity in rangelands suggests that this omission should be reconsidered, and plant species richness and diversity are two metrics that may be useful and appropriate. Ideally, their response to a variety of anthropogenic and...
Sexing young snowy owls
Mathew T. Seidensticker, Denver W. Holt, Jennifer Detienne, Sandra L. Talbot, Kathy Gray
2011, Journal of Raptor Research (45) 281-289
We predicted sex of 140 Snowy Owl (Bubo scandiacus) nestlings out of 34 nests at our Barrow, Alaska, study area to develop a technique for sexing these owls in the field. We primarily sexed young, flightless owls (3844 d old) by quantifying plumage markings on the remiges and tail, predicting...
