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Page 1833, results 45801 - 45825

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Source and site response study of the 2008 Mount Carmel, Illinois, earthquake
S. Hartzell, C. Mendoza
2011, Bulletin of the Seismological Society of America (101) 951-963
Two separate inversions are performed using the ground-motion data from the 2008 Mount Carmel, Illinois, earthquake. One uses aftershocks as empirical Green’s functions to determine a finite-fault slip distribution. The second uses mainshock ground-motion spectra to calculate source, path, and site response parameters. The slip inversion reveals a prominent asperity...
Inference for occupancy and occupancy dynamics
Allan F. O’Connell, Larissa L. Bailey
Allan F. O’Connell, James D. Nichols, K. Ullas Karanth, editor(s)
2011, Book chapter, Camera traps in animal ecology
This chapter deals with the estimation of occupancy as a state variable to assess the status of, and track changes in, species distributions when sampling with camera traps. Much of the recent interest in occupancy estimation and modeling originated from the models developed by MacKenzie et al. (2002, 2003), although...
Hydrogeomorphic processes of thermokarst lakes with grounded-ice and floating-ice regimes on the Arctic coastal plain, Alaska
C.D. Arp, Benjamin M. Jones, F.E. Urban, G. Grosse
2011, Hydrological Processes (25) 2422-2438
Thermokarst lakes cover > 20% of the landscape throughout much of the Alaskan Arctic Coastal Plain (ACP) with shallow lakes freezing solid (grounded ice) and deeper lakes maintaining perennial liquid water (floating ice). Thus, lake depth relative to maximum ice thickness (1·5–2·0 m) represents an important threshold that impacts permafrost,...
Distribution and seasonal dynamics of arsenic in a shallow lake in northwestern New Jersey, USA
J. L. Barringer, Z. Szabo, T.P. Wilson, J.L. Bonin, T. Kratzer, K. Cenno, T. Romagna, M. Alebus, B. Hirst
2011, Environmental Geochemistry and Health (33) 1-22
Elevated concentrations of arsenic (As) occurred during warm months in water from the outlet of Lake Mohawk in northwestern New Jersey. The shallow manmade lake is surrounded by residential development and used for recreation. Eutrophic conditions are addressed by alum and copper sulfate applications and aerators operating in the summer....
Random variability explains apparent global clustering of large earthquakes
A.J. Michael
2011, Geophysical Research Letters (38)
The occurrence of 5 Mw ≥ 8.5 earthquakes since 2004 has created a debate over whether or not we are in a global cluster of large earthquakes, temporarily raising risks above long-term levels. I use three classes of statistical tests to determine if the record of M ≥ 7 earthquakes...
Shallow lithological structure across the Dead Sea Transform derived from geophysical experiments
J. Stankiewicz, G. Munoz, O. Ritter, Paul A. Bedrosian, T. Ryberg, U. Weckmann, M. Weber
2011, Geochemistry, Geophysics, Geosystems (12)
In the framework of the DEad SEa Rift Transect (DESERT) project a 150 km magnetotelluric profile consisting of 154 sites was carried out across the Dead Sea Transform. The resistivity model presented shows conductive structures in the western section of the study area terminating abruptly at the Arava Fault. For...
The geochemistry and petrogenesis of the Paleoproterozoic Green Mountain arc: A composite(?), bimodal, oceanic, fringing arc
D.S. Jones, C. G. Barnes, Wayne R. Premo, A.W. Snoke
2011, Precambrian Research (185) 231-249
The inferred subduction affinity of the ∼1780-Ma Green Mountain arc, a dominantly bimodal igneous terrane (together with immature marine and volcaniclastic sedimentary rocks) accreted to the southern margin of the Wyoming province, is integral to arc-accretion models of the Paleoproterozoic growth of southern Laurentia. Conversely, the dominantly bimodal nature...
Characterizing fragmentation of the collective forests in southern China from multitemporal Landsat imagery: A case study from Kecheng district of Zhejiang province
M. Li, Z. Zhu, James E. Vogelmann, D. Xu, W. Wen, A. Liu
2011, Applied Geography (31) 1026-1035
Tropical and subtropical forests provide important ecosystem goods and services including carbon sequestration and biodiversity conservation. These forests are facing increasing socioeconomic pressures and are rapidly being degraded and fragmented. This analysis focuses on the rate of change and patterns of fragmentation in a collective forest area in Zhejiang province,...
Distribution, population status and trends of Kittlitz's murrelet Brachyramphus brevirostris in Lower Cook Inlet and Kachemak Bay, Alaska
Kathy J. Kuletz, Suzann G. Speckman, John F. Piatt, E.A. Labunski
2011, Marine Ornithology: Journal of Seabird Research and Conservation (39) 85-95
Lower Cook Inlet (LCI) in south-central Alaska is unusual among the breeding areas of Kittlitz's Murrelet Brachyramphus brevirostris because of human impacts on the marine and terrestrial environments and because of the lack of tidewater glaciers. In LCI the Kittlitz's Murrelet co-exists with the more abundant Marbled Murrelet, which complicates...
Alaska North Slope regional gas hydrate production modeling forecasts
S.J. Wilson, R.B. Hunter, Timothy S. Collett, S. Hancock, R. Boswell, B.J. Anderson
2011, Marine and Petroleum Geology (28) 460-477
A series of gas hydrate development scenarios were created to assess the range of outcomes predicted for the possible development of the “Eileen” gas hydrate accumulation, North Slope, Alaska. Production forecasts for the “reference case” were built using the 2002 Mallik production tests, mechanistic simulation, and geologic studies conducted...
Recreation impacts to cliff resources in the Potomac Gorge: Final report, June 2011
Jeffrey L. Marion, C. Carr, C.A. Davis
2011, Report
Managers of the National Park Service (NPS) are directed by law to accommodate appropriate types and amounts of visitation while ensuring that: any adverse impacts are the minimum necessary, unavoidable, cannot be further mitigated, and do not constitute impairment or derogation of park resources and values. (NPS 2006). The increasing...
Tremor reveals stress shadowing, deep postseismic creep, and depth-dependent slip recurrence on the lower-crustal San Andreas fault near Parkfield
David R. Shelly, Kaj M. Johnson
2011, Geophysical Research Letters (38) L13312
The 2003 magnitude 6.5 San Simeon and the 2004 magnitude 6.0 Parkfield earthquakes induced small, but significant, static stress changes in the lower crust on the central San Andreas fault, where recently detected tectonic tremor sources provide new constraints on deep fault creep processes. We find that these earthquakes affect...
And last comes XYZ
Bill Langer
2011, Aggregates Manager (16) 52-52
Catesian Coordinates can be used to specify the position of any point in three-dimensional space by measuring its distances from three mutually perpendicular planes....
Hillslope response to knickpoint migration in the Southern Appalachians: Implications for the evolution of post-orogenic landscapes
S.F.G. Wegmann, K.L. Franke, S. Hughes, R.Q. Lewis, N. Lyons, P. Paris, K. Ross, J.B. Bauer, A.C. Witt
2011, Earth Surface Processes and Landforms (36) 1254-1267
The southern Appalachians represent a landscape characterized by locally high topographic relief, steep slopes, and frequent mass movement in the absence of significant tectonic forcing for at least the last 200 Ma. The fundamental processes responsible for landscape evolution in a post‐orogenic landscape remain enigmatic. The non‐glaciated Cullasaja River basin of...
U.S. Geological Survey: A synopsis of Three-dimensional Modeling
Linda J. Jacobsen, Pierre D. Glynn, Geoff A. Phelps, Randall C. Orndorff, Gerald W. Bawden, V. J. S. Grauch
2011, Book chapter, Chapter 13 in <i>Synopsis of Current Three-dimensional Geological Mapping and Modeling in Geological Survey Organizations</i>
The U.S. Geological Survey (USGS) is a multidisciplinary agency that provides assessments of natural resources (geological, hydrological, biological), the disturbances that affect those resources, and the disturbances that affect the built environment, natural landscapes, and human society. Until now, USGS map products have been generated and distributed primarily as 2-D...
Geological effects and implications of the 2010 tsunami along the central coast of Chile
R.A. Morton, G. Gelfenbaum, M.L. Buckley, B. M. Richmond
2011, Sedimentary Geology (242) 34-51
Geological effects of the 2010 Chilean tsunami were quantified at five near-field sites along a 200 km segment of coast located between the two zones of predominant fault slip. Field measurements, including topography, flow depths, flow directions, scour depths, and deposit thicknesses, provide insights into the processes and morphological changes associated...
Notes on the geology and meteorology of sites infected with white-nose syndrome before July 2010 in Southeastern United States
Christopher S. Swezey, Christopher P. Garrity
2011, NSS News (2011) 16-25
Since 2006, numerous bat colonies in North America have experienced unusually high incidences of mortality. In these colonies, bats are infected by a white fungus named Geomyces destructans, which has been observed on bat muzzles, noses, ears, and (or) wings. Although it is not exactly certain how and why these...
Oligocene and Miocene arc volcanism in northeastern California: evidence for post-Eocene segmentation of the subducting Farallon plate
J.P. Colgan, A.E. Egger, D. A. John, B. Cousens, R.J. Fleck, C.D. Henry
2011, Geosphere (7) 733-755
The Warner Range in northeastern California exposes a section of Tertiary rocks over 3 km thick, offering a unique opportunity to study the long-term history of Cascade arc volcanism in an area otherwise covered by younger volcanic rocks. The oldest locally sourced volcanic rocks in the Warner Range are Oligocene...
Final report on the Seventh International Comparison of Absolute Gravimeters (ICAG 2005)
Z. Jiang, O. Francis, L. Vitushkin, V. Palinkas, A. Germak, M. Becker, G. D’Agostino, M. Amalvict, R. Bayer, M. Bilker-Koivula, S. Desogus, J. Faller, R. Falk, J. Hinderer, C. Gagnon, T. Jakob, E. Kalish, J. Kostelecky, C. Lee, J. Liard, Y. Lokshyn, B. Luck, J. Makinen, S. Mizushima, Moigne N. Le, C. Origlia, E.R. Pujol, P. Richard, L. Robertsson, D. Ruess, D. Schmerge, Y. Stus, S. Svitlov, S. Thies, C. Ullrich, M. Van Camp, A. Vitushkin, W. Ji, H. Wilmes
2011, Metrologia (48) 246-260
The Bureau International des Poids et Mesures (BIPM), Sevres, France, hosted the 7th International Comparison of Absolute Gravimeters (ICAG) and the associated Relative Gravity Campaign (RGC) from August to September 2005.;ICAG 2005 was prepared and performed as a metrological pilot study, which aimed:;(1) To determine the gravity comparison reference values;;(2)...
Introduction
W. Nelson Beyer, James P. Meador
W. Nelson Beyer, James P. Meador, editor(s)
2011, Book chapter, Environmental contaminants in biota: Interpreting tissue concentrations, Second Edition
Ecotoxicology is the study of the movement of environmental contaminants through ecosystems and their effects on plants and animals. Examining tissue residues of these contaminants in biota is basic to ecotoxicology, both for understanding the movement of contaminants within organisms and through food chains, and for understanding and quantifying injuries...