Geometry and kinematics of the eastern Lake Mead fault system in the Virgin Mountains, Nevada and Arizona
Sue Beard, David J. Campagna, R. Ernest Anderson
2010, GSA Special Papers (463) 243-274
The Lake Mead fault system is a northeast-striking, 130-km-long zone of left-slip in the southeast Great Basin, active from before 16 Ma to Quaternary time. The northeast end of the Lake Mead fault system in the Virgin Mountains of southeast Nevada and northwest Arizona forms a...
Columbia River Project water use plan: Mid Columbia River sturgeon incubation and rearing study (Year 1)
Michael J. Parsley
2010, Report
This report describes the results from the first year of a three-year investigation on the effects of different thermal regimes on incubation and rearing early life stages of white sturgeon. The Columbia River has been significantly altered by the construction of dams resulting in annual flows and water temperatures that...
Laboratory-based maximum slip rates in earthquake rupture zones and radiated energy
Art McGarr, Joe B. Fletcher, M. Boettcher, N. Beeler, J. Boatwright
2010, Bulletin of the Seismological Society of America (100) 3250-3260
Laboratory stick-slip friction experiments indicate that peak slip rates increase with the stresses loading the fault to cause rupture. If this applies also to earthquake fault zones, then the analysis of rupture processes is simplified inasmuch as the slip rates depend only on the local yield stress and are independent...
A comprehensive multilocus phylogeny for the wood-warblers and a revised classification of the Parulidae (Aves)
I.J. Lovette, J. L. Perez-Eman, J.P. Sullivan, Richard C. Banks, I. Fiorentino, S. Cordoba-Cordoba, M. Echeverry-Galvis, F.K. Barker, K.J. Burns, J. Klicka, Scott M. Lanyon, E. Bermingham
2010, Molecular Phylogenetics and Evolution (57) 753-770
The birds in the family Parulidae-commonly termed the New World warblers or wood-warblers-are a classic model radiation for studies of ecological and behavioral differentiation. Although the monophyly of a 'core' wood-warbler clade is well established, no phylogenetic hypothesis for this group has included a full sampling of wood-warbler species diversity....
Estimating flood frequency
David A. Eash
Cornelia Fleischer Mutel, editor(s)
2010, Book chapter, A watershed year: Anatomy of the Iowa floods of 2008
No abstract available....
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...
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...
Migration patterns and movements of sandhill cranes wintering in central and southwestern Louisiana
Sammy L. King, Aaron R. Pierce, Kent Hersey, Nicholas Winstead
Barry K. Hartup, editor(s)
2010, Conference Paper, Proceedings of the eleventh North American crane workshop
In this study we trapped wintering sandhill cranes (Grus canadensis) in Louisiana and fitted them with satellite transmitters to determine their migration routes. Four of the 6 sandhill cranes with validated locations and a terminus point used the Central Flyway for spring migration; 2 of these 4 (the only 2...
Passive seismic monitoring of natural and induced earthquakes: Case studies, future directions and socio-economic relevance
Marco Bohnhoff, Georg Dresen, William L. Ellsworth, Hisao Ito
Sierd Cloetingh, Jorg Negendank, editor(s)
2010, Book chapter, New frontiers in integrated solid earth sciences
An important discovery in crustal mechanics has been that the Earth’s crust is commonly stressed close to failure, even in tectonically quiet areas. As a result, small natural or man-made perturbations to the local stress field may trigger earthquakes. To understand these processes, Passive Seismic Monitoring (PSM) with seismometer arrays...
Repeat photography and low-elevation fire responses in the southwestern United States
Raymond M. Turner, Robert H. Webb, Todd C. Esque, Garry F. Rogers
Robert H. Webb, Diane E. Boyer, Raymond M. Turner, editor(s)
2010, Book chapter, Repeat photography methods and applications in the natural sciences
Estimating the empirical probability of submarine landslide occurrence
Eric L. Geist, Thomas E. Parsons
David C. Mosher, Craig Shipp, Lorena Moscardelli, Jason D. Chaytor, Christopher D. P. Baxter, Homa J. Lee, Roger Urgeles, editor(s)
2010, Book chapter, Submarine mass movements and their consequences
The empirical probability for the occurrence of submarine landslides at a given location can be estimated from age dates of past landslides. In this study, tools developed to estimate earthquake probability from paleoseismic horizons are adapted to estimate submarine landslide probability. In both types of estimates, one has to account...
Guidelines for conducting Smolt survival studies in the Columbia River
Albert Giorgi Albert, Skalski John, Chuck Pevin Chuck, Steve Smith Steve, Mike Langeslay Mike, Timothy D. Counihan, Russell W. Perry, Shane Bickford
2010, Report, Tagging, telemetry, and marking measures for monitoring fish populations
For more than a decade, investigators from different research groups in the Pacific Northwest have been using electronic tags to estimate survival of salmonid smolts as they migrate seaward past hydroelectric dams and through impoundments on the Snake and Columbia Rivers. Over the years, they have refined both analytical and...
The use of historical charts and photographs in ecosystem restoration: Examples from the Everglades Historical Air Photo Project
Thomas J. Smith III, Ginger Tiling-Range, John Jones, Paul Nelson, Ann Foster, Karen Balentine
David C. Cowley, Matthew J. Abicht, Robin A. Standring, editor(s)
2010, Book chapter, Landscapes through the lens: Aerial photographs and historic environment
No abstract available....
In situ sulfur isotope analysis of sulfide minerals by SIMS: Precision and accuracy, with application to thermometry of ~3.5Ga Pilbara cherts
R. Kozdon, N.T. Kita, J.M. Huberty, J.H. Fournelle, C. A. Johnson, J.W. Valley
2010, Chemical Geology (275) 243-253
Secondary ion mass spectrometry (SIMS) measurement of sulfur isotope ratios is a potentially powerful technique for in situ studies in many areas of Earth and planetary science. Tests were performed to evaluate the accuracy and precision of sulfur isotope analysis by SIMS in a set of seven well-characterized, isotopically homogeneous...
Estimating natural background groundwater chemistry, Questa molybdenum mine, New Mexico
Phillip L. Verplanck, D. Kirk Nordstrom, Geoffrey S. Plumlee, Bruce M. Walker
Lisa A. Morgan, Steven L. Quane, editor(s)
2010, Book chapter, Through the generations: Geologic and anthropogenic field excursions in the Rocky Mountains from modern to ancient
This 2 1/2 day field trip will present an overview of a U.S. Geological Survey (USGS) project whose objective was to estimate pre-mining groundwater chemistry at the Questa molybdenum mine, New Mexico. Because of intense debate among stakeholders regarding pre-mining groundwater chemistry standards, the New Mexico Environment Department and Chevron...
Historical arroyo formation: documentation of magnitude and timing of historical changes using repeat photography
Robert H. Webb, Richard Hereford
Robert H. Webb, Diane E. Boyer, Raymond M. Turner, editor(s)
2010, Book chapter, Repeat photography: methods and applications in the natural sciences
Measurement of bedload transport in sand-bed rivers: A look at two indirect sampling methods
Robert R. Holmes Jr.
John R. Gray, Jonathan B. Laronne, Jeffrey D. G. Marr, editor(s)
2010, Book chapter, Bedload-surrogate monitoring technologies
Sand-bed rivers present unique challenges to accurate measurement of the bedload transport rate using the traditional direct sampling methods of direct traps (for example the Helley-Smith bedload sampler). The two major issues are: 1) over sampling of sand transport caused by “mining” of sand due to the flow disturbance induced...
Challenges to natural resource monitoring in a small border park: terrestrial mammals at Coronado National Memorial, Cochise County, Arizona
Don E. Swann, Melanie Bucci, Amy J. Kuenzi, Barbara N. Alberti, Cecil R. Schwalbe
William L. Halvorson, Charles van Riper III, Cecil R. Schwalbe, editor(s)
2010, Book chapter, Southwestern desert resources
Long-term monitoring in national parks is essential to meet National Park Service and other important public goals. Terrestrial mammals are often proposed for monitoring because large mammals are of interest to visitors and small mammals are important as prey. However, traditional monitoring strategies for mammals are often too expensive and...
Managing undesired and invading fishes
Cindy S. Kolar, Walter R. Courtenay Jr., Leo G. Nico
Wayne A. Hubert, Michael C. Quist, editor(s)
2010, Book chapter, Inland fisheries management in North America
No abstract available....
Large-scale laboratory testing of bedload-monitoring technologies: Overview of the StreamLab06 Experiments
Jeffrey D. G. Marr, John R. Gray, Broderick E. Davis, Chris Ellis, Sara Johnson
John R. Gray, Jonathan B. Laronne, Jeffrey D. G. Marr, editor(s)
2010, Book chapter, Bedload-surrogate monitoring technologies
A 3-month-long, large-scale flume experiment involving research and testing of selected conventional and surrogate bedload-monitoring technologies was conducted in the Main Channel at the St. Anthony Falls Laboratory under the auspices of the National Center for Earth-surface Dynamics. These experiments, dubbed StreamLab06, involved 25 researchers and volunteers from academia, government,...
Probabilistic seismic hazard estimates incorporating site effects - An example from Indiana, U.S.A
J.S. Hasse, C.H. Park, R.L. Nowack, J.R. Hill
2010, Environmental & Engineering Geoscience (16) 369-388
The U.S. Geological Survey (USGS) has published probabilistic earthquake hazard maps for the United States based on current knowledge of past earthquake activity and geological constraints on earthquake potential. These maps for the central and eastern United States assume standard site conditions with Swave velocities of 760 m/s in the...
Patterns of ancestry and genetic diversity in reintroduced populations of the slimy sculpin: Implications for conservation
D.D. Huff, L.M. Miller, B. Vondracek
2010, Conservation Genetics (11) 2379-2391
Reintroductions are a common approach for preserving intraspecific biodiversity in fragmented landscapes. However, they may exacerbate the reduction in genetic diversity initially caused by population fragmentation because the effective population size of reintroduced populations is often smaller and reintroduced populations also tend to be more geographically isolated than native populations....
Holocene aggradation of the Dry Tortugas coral reef ecosystem
J. C. Brock, M. Palaseanu-Lovejoy, R.Z. Poore, A. Nayegandhi, C. W. Wright
2010, Coral Reefs (29) 857-868
Radiometric age dating of reef cores acquired at the Dry Tortugas coral reef ecosystem (DTCRE) was merged with lidar topographic mapping to examine Holocene reef development linked to spatial variation in growth and erosion under the control of sea level. Analysis of variance of lidar topography confirmed the presence of...
Geochemical and mineralogical evidence for Sahara and Sahel dust additions to Quaternary soils on Lanzarote, eastern Canary Islands, Spain
D.R. Muhs, J. Budahn, G. Skipp, J.M. Prospero, D. Patterson, E. Arthur Bettis III
2010, Terra Nova (22) 399-410
Africa is the most important source of dust in the world today, and dust storms are frequent on the nearby Canary Islands. Previous workers have inferred that the Sahara is the most important source of dust to Canary Islands soils, with little contribution from the Sahel region. Soils overlying a...
Development of a new toxic-unit model for the bioassessment of metals in streams
Travis S. Schmidt, W.H. Clements, K.A. Mitchell, Stanley E. Church, Richard B. Wanty, David L. Fey, Philip L. Verplanck, Carma A. San Juan
2010, Environmental Toxicology and Chemistry (29) 2432-2442
Two toxic-unit models that estimate the toxicity of trace-metal mixtures to benthic communities were compared. The chronic criterion accumulation ratio (CCAR), a modification of biotic ligand model (BLM) outputs for use as a toxic-unit model, accounts for the modifying and competitive influences of major cations (Ca2+, Mg2+, Na+, K+, H+),...
