Basin-floor Lake Bonneville stratigraphic section as revealed in paleoseismic trenches at the Baileys Lake site, West Valley fault zone, Utah
Michael D. Hylland, Christopher B. DuRoss, Greg N. McDonald, Susan S. Olig, Charles G. Oviatt, Shannon A. Mahan, Anthony J. Crone, Stephen Personius
2012, Book chapter, Selected topics in engineering and environmental geology in Utah
Recent paleoseismic trenching on the Granger fault of the West Valley fault zone in Salt Lake County, Utah, exposed a nearly complete section of late Pleistocene Lake Bonneville deposits, and highlights challenges related to accurate interpretation of basin-floor stratigraphy in the absence of numerical age constraints. We used radiocarbon and...
Near‐surface void detection using a seismic landstreamer and horizontal velocity and attenuation tomography
Sean F. Buckley, John W. Lane Jr.
2012, Conference Paper, Symposium on the Application of Geophysics to Engineering and Environmental Problems 2012
The detection and characterization of subsurface voids plays an important role in the study of karst formations and clandestine tunnels. Horizontal velocity and attenuation tomography (HVAT) using offset‐fan shooting and a towed seismic land streamer is a simple, rapid, minimally invasive method that shows promise for detecting near‐surface voids and...
Measuring rotational ground motions in seismological practice
William H. K. Lee, John R. Evans, B. S. Huang, C. R. Hutt, C.-J. Lin, C.-C. Liu, R. L. Nigbor
2012, Book chapter, New Manual of Seismological Observatory Practice 2 (NMSOP-2)
No abstract available....
Identifying fluorescent pulp mill effluent in the Gulf of Maine and its watershed
Kaelin M. Cawley, Kenna D. Butler, George R. Aiken, Laurel G. Larsen, Thomas G. Huntington, Diane M. McKnight
2012, Marine Pollution Bulletin (64) 1678-1687
Using fluorescence spectroscopy and parallel factor analysis (PARAFAC) we characterized and modeled the fluorescence properties of dissolved organic matter (DOM) in samples from the Penobscot River, Androscoggin River, Penobscot Bay, and the Gulf of Maine (GoM). We analyzed excitation-emission matrices (EEMs) using an existing PARAFAC model (Cory and McKnight, 2005)...
The Quaternary thrust system of the northern Alaska Range
Sean P. Bemis, Gary A. Carver, Richard D. Koehler
2012, Geosphere (8) 196-205
The framework of Quaternary faults in Alaska remains poorly constrained. Recent studies in the Alaska Range north of the Denali fault add significantly to the recognition of Quaternary deformation in this active orogen. Faults and folds active during the Quaternary occur over a length of ∼500 km along the...
Nest defense- Grassland bird responses to snakes
Kevin S. Ellison, Christine Ribic
2012, Studies in Avian Biology (43) 149-159
Predation is the primary source of nest mortality for most passerines; thus, behaviors to reduce the impacts of predation are frequently quantified to study learning, adaptation, and coevolution among predator and prey species. Video surveillance of nests has made it possible to examine real-time parental nest defense. During 1999-2009, we...
Mauritania – A greenfields exploration opportunity in northwestern Africa
Cliff D. Taylor, E. D. Anderson, D. C. Bradley, G. Beaudoin, Michael A. Cosca, Robert G. Eppinger, Gregory L. Fernette, Carol A. Finn, Michael J. Friedel, Stuart A. Giles, Richard J. Goldfarb, John D. Horton, Gregory K. Lee, Erin E. Marsh, Jeffrey L. Mauk, Holly A. Motts, M. Y. Ould El Joud, S. Ould Soueidatt, A. Ould Taleb Mohamed, Barnaby W. Rockwell
2012, Society of Economic Geologists Newsletter (91) 14-18
No abstract available....
Illumination of rheological mantle heterogeneity by the M7.2 2010 El Mayor-Cucapah earthquake
Fred F. Pollitz, Roland Bürgmann, Wayne R. Thatcher
2012, Geochemistry, Geophysics, Geosystems (13)
Major intracontinental strike-slip faults tend to mark boundaries between lithospheric blocks of contrasting mechanical properties along much of their length. Both crustal and mantle heterogeneities can form such boundaries, but the role of crustal versus mantle strength contrasts for localizing strain sufficiently to generate major faults remains unclear. Using the...
Progress report geologic map of the Grouse Creek 30' x 60' quadrangle, and Utah part of the Jackpot 30' x 60' quadrangle, Box Elder County, Utah, and Cassia County, Idaho (Year 3 of 4);
David M. Miller, Donald L. Clark, Michael L. Wells, Charles G. Oviatt, Tracey J. Felger, Victoria R. Todd
2012, Utah Geological Survey Open-File Report 598
No abstract available....
Science summary in support of Manatee Protection Area (MPA) design in Puerto Rico
C. Ashton Drew, Louise B. Alexander-Vaughn, Jaime A. Collazo
2012, Cooperator Science Series FWS/CSS-101-2012
The Antillean manatee (Trichechus manatus manatus), a subspecies of the West Indian manatee, is listed as endangered by the US Department of Interior. In accordance with its listing, the U.S. Fish and Wildlife Service’s Caribbean Field Office (USFWS) is mandated to create one or more Manatee Protection Areas (MPAs) for...
Significance of a 3D Elevation Program to wetland mapping
Gregory I. Snyder, Megan Lang
2012, National Wetlands Newsletter (34) 11-15
The recent National Enhanced Assessment conducted by the U.S. Geology Survey identified billions of dollars in potential annual benefits if a national-scale enhanced elevation data program was implemented. Given the importance of topography to wetlands, wetland mapping could benefit significantly from improved elevation data. ...
A new method of calculating electrical conductivity with applications to natural waters
R. Blaine McCleskey, D. Kirk Nordstrom, J. N. Ryan, J. W. Ball
2012, Geochimica et Cosmochimica Acta (77) 369-382
A new method is presented for calculating the electrical conductivity of natural waters that is accurate over a large range of effective ionic strength (0.0004–0.7 mol kg−1), temperature (0–95 °C), pH (1–10), and conductivity (30–70,000 μS cm−1). The method incorporates a reliable set of equations to...
Assessing freshwater habitat of adult anadromous alewives using multiple approaches
Martha E. Mather, Holly J. Frank, Joseph M. Smith, Roxann D. Cormier, Robert M. Muth, John T. Finn
2012, Marine and Coastal Fisheries: Dynamics, Management, and Ecosystem Science (4) 188-200
After centuries of disturbance, environmental professionals now recognize the need to restore coastal watersheds for native fish and protect the larger ecosystems on which fish and other aquatic biota depend. Anadromous fish species are an important component of coastal ecosystems that are often adversely affected by human activities. Restoring native...
Correlation of early Paleogene global diversity patterns of large benthic foraminifera with Paleocene-Eocene hyperthermal events
Katherine J. Whidden, Robert J. Jones
2012, Palaios (27) 235-251
Large benthic foraminifera (LBF) were major contributors to many Paleogene carbonate platforms around the world. These photosymbiotic foraminifera lived in warm, oligotrophic, shallow waters within the photic zone. Such Paleogene families as the nummulitids, alveolinids, and orthophragminids rose to prominence in the late Paleocene, thrived in the early and middle...
Upper Klamath Basin Landsat Image for July 11, 2004: Path 45 Rows 30 and 31
Daniel T. Snyder
2012, Report
This image is a mosaic of Landsat-7 images of the upper Klamath Basin. The original images were obtained from the U.S. Geological Survey Earth Resources Observation and Science Center (EROS). EROS is responsible for archive management and distribution of Landsat data products. The Landsat-7 satellite is part of an ongoing...
Upper Klamath Basin Landsat Image for July 2, 2006: Path 44 Row 31
Daniel T. Snyder
2012, Report
This subset of a Landsat-5 image shows part of the upper Klamath Basin. The original images were obtained from the U.S. Geological Survey Earth Resources Observation and Science Center (EROS). EROS is responsible for archive management and distribution of Landsat data products. The Landsat-5 satellite is part of an ongoing...
Upper Klamath Basin Landsat Image for July 10, 2006: Path 44 Row 31
Daniel T. Snyder
2012, Report
This subset of a Landsat-7 image shows part of the upper Klamath Basin. The original images were obtained from the U.S. Geological Survey Earth Resources Observation and Science Center (EROS). EROS is responsible for archive management and distribution of Landsat data products. The Landsat-7 satellite is part of an ongoing...
Fluvial transport and surface enrichment of arsenic in semi-arid mining regions: examples from the Mojave Desert, California
Christopher S. Kim, David H. Slack, James J. Rytuba
2012, Journal of Environmental Monitoring (14) 1798-1813
As a result of extensive gold and silver mining in the Mojave Desert, southern California, mine wastes and tailings containing highly elevated arsenic (As) concentrations remain exposed at a number of former mining sites. Decades of weathering and erosion have contributed to the mobilization of As-enriched tailings, which now contaminate...
Benefits and risks of adopting the global code of practice for recreational fisheries
Robert Arlinghaus, T. Douglas Beard Jr., Steven J. Cooke, Ian G. Cowx
2012, Fisheries (37) 165-172
Recreational fishing constitutes the dominant or sole use of many fish stocks, particularly in freshwater ecosystems in Western industrialized countries. However, despite their social and economic importance, recreational fisheries are generally guided by local or regional norms and standards, with few comprehensive policy and development frameworks existing across jurisdictions. We...
Quantifying urban land cover change between 2001 and 2006 in the Gulf of Mexico region
George Z. Xian, Collin G. Homer, Brett Bunde, Patrick Danielson, Jon Dewitz, Joyce Fry, Ruiliang Pu
2012, Geocarto International (27) 479-497
We estimated urbanization rates (2001–2006) in the Gulf of Mexico region using the National Land Cover Database (NLCD) 2001 and 2006 impervious surface products. An improved method was used to update the NLCD impervious surface product in 2006 and associated land cover transition between 2001 and 2006. Our estimation reveals...
Origin of an unusual monazite-xenotime gneiss, Hudson Highlands, New York: SHRIMP U-Pb geochronology and trace element geochemistry
John N. Aleinikoff, Richard I. Grauch, Frank K. Mazdab, Loretta Kwak, C. Mark Fanning, Sandra L. Kamo
2012, American Journal of Science (312) 723-765
A pod of monazite-xenotime gneiss (MXG) occurs within Mesoproterozoic paragneiss, Hudson Highlands, New York. This outcrop also contains granite of the Crystal Lake pluton, which migmatized the paragneiss. Previously, monazite, xenotime, and zircon from MXG, plus detrital zircon from the paragneiss, and igneous zircon from the granite, were dated...
Maximizing the utility of monitoring to the adaptive management of natural resources
William L. Kendall, Clinton T. Moore
Robert A. Gitzen, Andrew B. Cooper, Joshua J. Millspaugh, Daniel S. Licht, editor(s)
2012, Book chapter, Design and analysis of long-term ecological monitoring studies
Data collection is an important step in any investigation about the structure or processes related to a natural system. In a purely scientific investigation (experiments, quasi-experiments, observational studies), data collection is part of the scientific method, preceded by the identification of hypotheses and the design of any manipulations of the...
Natural disturbances to mangroves
Thomas J. Smith III, K.R.T. Whelan
W. Kruczynski, P. Fletcher, editor(s)
2012, Book chapter, South Florida Marine Environments: An ecological synthesis
No abstract available....
Multifractal model of magnetic susceptibility distributions in some igneous rocks
Mark E. Gettings
2012, Nonlinear Processes in Geophysics (19) 635-642
Measurements of in-situ magnetic susceptibility were compiled from mainly Precambrian crystalline basement rocks beneath the Colorado Plateau and ranges in Arizona, Colorado, and New Mexico. The susceptibility meter used measures about 30 cm3 of rock and measures variations in the modal distribution of magnetic minerals that form a minor component...
Parameter estimation method and updating of regional prediction equations for ungaged sites in the desert region of California
Nancy A. Barth, Andrea G. Veilleux
2012, Conference Paper
The U.S. Geological Survey (USGS) is currently updating at-site flood frequency estimates for USGS streamflow-gaging stations in the desert region of California. The at-site flood-frequency analysis is complicated by short record lengths (less than 20 years is common) and numerous zero flows/low outliers at many sites. Estimates of the three...
