Use of isotopes, age-dating, and numerical simulation to evaluate source histories and transport of NO3- to public supply wells in principal aquifers of the United States
P.B. McMahon, J.K. Bohlke, C. Brown, K. Burow, C. A. Crandall, Matthew K. Landon
2005, Conference Paper, Proceedings of the 6th International Symposium on Applied Isotope Geochemistry
No abstract available. ...
Contemporaneous trachyandesitic and calc-alkaline volcanism of the Huerto Andesite, San Juan Volcanic Field, Colorado, USA
F. Parat, M.A. Dungan, P. W. Lipman
2005, Journal of Petrology (46) 859-891
Locally, voluminous andesitic volcanism both preceded and followed large eruptions of silicic ash-flow tuff from many calderas in the San Juan volcanic field. The most voluminous post-collapse lava suite of the central San Juan caldera cluster is the 28 Ma Huerto Andesite, a diverse assemblage erupted from at least 5–6 volcanic...
Wagon loads of sand blows in White County, Illinois
Susan E. Hough, Roger Bilham, Karl Mueller, William Stephenson, Robert Williams, Jack Odum
2005, Seismological Research Letters (76) 373-386
Several anecdotal accounts provide compelling evidence that liquefaction occurred at several sites in Illinois during the 1811-1812 New Madrid sequence, as much as 250 km north of the New Madrid seismic zone (NMSZ). At one Wabash Valley location, sand blows are still evident near Big Prairie, Illinois, a location described...
Carbon, nitrogen, and phosphorus accumulation in floodplains of Atlantic Coastal Plain rivers, USA
Gregory E. Noe, Cliff Hupp
2005, Ecological Applications (15) 1178-1190
Net nutrient accumulation rates were measured in riverine floodplains of the Atlantic Coastal Plain in Virginia, Maryland, and Delaware, USA. The floodplains were located in watersheds with different land use and included two sites on the Chickahominy River (urban), one site on the Mattaponi River (forested), and five sites on...
Genomic variation of the fibropapilloma-associated marine turtle herpes virus across seven geographic areas and three host species
R.J. Greenblatt, S.L. Quackenbush, R.N. Casey, J. Rovnak, G.H. Balazs, Thierry M. Work, J.W. Casey, C.A. Sutton
2005, Journal of Virology (79) 1125-1132
Fibropapillomatosis (FP) of marine turtles is an emerging neoplastic disease associated with infection by a novel turtle herpesvirus, fibropapilloma-associated turtle herpesvirus (FPTHV). This report presents 23 kb of the genome of an FPTHV infecting a Hawaiian green turtle (Chelonia mydas). By sequence homology, the open reading frames in this contig...
Factors affecting settling, survival, and viability of black bears reintroduced to Felsenthal National Wildlife Refuge, Arkansas
B.J. Wear, R. Eastridge, J. D. Clark
2005, Wildlife Society Bulletin (33) 1363-1374
We used radiotelemetry and population modeling techniques to examine factors related to population establishment of black bears (Ursus americanus) reintroduced to Felsenthal National Wildlife Refuge (NWR), Arkansas. Our objectives were to determine whether settling (i.e., establishment of a home range at or near the release site), survival, recruitment, and population...
Tree mortality, canopy turnover, and woody detritus in old cove forests of the southern Appalachians
Richard T. Busing
2005, Ecology (86) 73-84
A long-term study of tree mortality, canopy turnover, and coarse woody detritus inputs was conducted in cove forests of the Great Smoky Mountains, Tennessee, USA. Seven old-growth stands were studied over a 10-yr period using 0.6–1.0 ha plots. Annual mortality of trees >10 cm dbh was 0.5–1.4% among stands (mean...
Generation and validation of characteristic spectra from EO1 Hyperion image data for detecting the occurrence of the invasive species, Chinese tallow
Elijah W. Ramsey III, A. Rangoonwala, G. Nelson, R. Ehrlich, K. Martella
2005, International Journal of Remote Sensing (26) 1611-1636
Chinese tallow (Triadica sebifera) is an invasive tree that is spreading throughout the south-eastern United States and now into the west, and in many places causing extensive change to native habitat and associated wildlife. Detecting and mapping the relative distribution of this species is important to its control and eradication....
Seismic architecture and lithofacies of turbidites in Lake Mead (Arizona and Nevada, U.S.A.), an analogue for topographically complex basins
D.C. Twichell, V.A. Cross, A.D. Hanson, B.J. Buck, J.G. Zybala, M.J. Rudin
2005, Journal of Sedimentary Research (75) 134-148
Turbidites, which have accumulated in Lake Mead since completion of the Hoover Dam in 1935, have been mapped using high-resolution seismic and coring techniques. This lake is an exceptional natural laboratory for studying fine-grained turbidite systems in complex topographic settings. The lake comprises four relatively broad basins separated by narrow...
Technical review of the status of Northern Goshawks in the western United States
D. E. Andersen, S. DeStefano, M.I. Goldstein, K. Titus, C. Crocker-Bedford, J.J. Keane, R.G. Anthony, Robert N. Rosenfield
2005, Journal of Raptor Research (39) 192-209
The U.S. Fish and Wildlife Service (FWS) was petitioned in 1997 to consider listing Northern Goshawks (Accipiter gentilis atricapillus) under the Endangered Species Act of 1973, west of the 100th meridian of the contiguous United States. In their 12-mo finding issued in June 1998, the FWS determined that listing this...
Hydrologic properties of coal beds in the Powder River Basin, Montana I. Geophysical log analysis
R. H. Morin
2005, Journal of Hydrology (308) 227-241
As part of a multidisciplinary investigation designed to assess the implications of coal-bed methane development on water resources for the Powder River Basin of southeastern Montana, six wells were drilled through Paleocene-age coal bedsalong a 31-km east–west transect within the Tongue River drainage basin. Analysis of geophysical logs obtained...
Surface deformation associated with the March 1996 earthquake swarm at Akutan Island, Alaska, revealed by C-band ERS and L-band JERS radar interferometry
Z. Lu, C. Wicks Jr., O. Kwoun, J.A. Power, D. Dzurisin
2005, Canadian Journal of Remote Sensing (31) 7-20
In March 1996, an intense earthquake swarm beneath Akutan Island, Alaska, was accompanied by extensive ground cracking but no eruption of Akutan volcano. Radar interferograms produced from L-band JERS-1 and C-band ERS-1/2 images show uplift associated with the swarm by as much as 60 cm on the western...
The 2003 eruption of Anatahan volcano, Commonwealth of the Northern Mariana Islands: Chronology, volcanology, and deformation
F. A. Trusdell, R. B. Moore, M. Sako, R.A. White, S.K. Koyanagi, R. Chong, J.T. Camacho
2005, Journal of Volcanology and Geothermal Research (146) 184-207
The first historical eruption on Anatahan Island occurred on 10 May 2003 from the east crater of the volcano. The eruption was preceded by several hours of seismicity. Two and a half hours before the outbreak, the number of earthquakes surged to more than 100 events per hour. At 0730...
Fire history of the San Francisco East Bay region and implications for landscape patterns
Jon E. Keeley
2005, International Journal of Wildland Fire (14) 285-296
The San Francisco East Bay landscape is a rich mosaic of grasslands, shrublands and woodlands that is experiencing losses of grassland due to colonization by shrubs and succession towards woodland associations. The instability of these grasslands is apparently due to their disturbance-dependent nature coupled with 20th century changes in fire...
Reconnaissance study of late quaternary faulting along Cerro Goden fault zone, western Puerto Rico
P. Mann, C.S. Prentice, J.-C. Hippolyte, N.R. Grindlay, L.J. Abrams, D. Lao-Davila
2005, Special Paper of the Geological Society of America (385) 115-137
The Cerro Goden fault zone is associated with a curvilinear, continuous, and prominent topographic lineament in western Puerto Rico. The fault varies in strike from northwest to west. In its westernmost section, the fault is ∼500 m south of an abrupt, curvilinear mountain front separating the 270- to 361-m-high La...
Eastern rim of the Chesapeake Bay impact crater: Morphology, stratigraphy, and structure
C. W. Poag
2005, Special Paper of the Geological Society of America 117-130
This study reexamines seven reprocessed (increased vertical exaggeration) seismic reflection profiles that cross the eastern rim of the Chesapeake Bay impact crater. The eastern rim is expressed as an arcuate ridge that borders the crater in a fashion typical of the "raised" rim documented in many well preserved complex impact...
Cultural change in the songs of humpback whales (Megaptera novaeangliae) from Tonga
N. Eriksen, L.A. Miller, J. Tougaard, D.A. Helweg
2005, Behaviour (142) 305-328
Some humpback whales migrate annually from Antarctic feeding grounds to the seas around the Tongan Islands to give birth and mate. The Tongan humpbacks are considered part of Southern Hemisphere Group V that splits during migration, some swimming to Eastern Australia and others to various Polynesian Islands. During this time...
An analysis of region-of-influence methods for flood regionalization in the Gulf-Atlantic Rolling Plains
Ken Eng, Gary D. Tasker, P. C. D. Milly
2005, Journal of the American Water Resources Association (41) 135-143
Region-of-influence (RoI) approaches for estimating stream flow characteristics at ungaged sites were applied and evaluated in a case study of the 50-year peak discharge in the Gulf-Atlantic Rolling Plains of the southeastern United States. Linear regression against basin characteristics was performed for each ungaged site considered based on data from...
Anatahan, Northern Mariana Islands: Reconnaissance geological observations during and after the volcanic crisis of spring 1990, and monitoring prior to the May 2003 eruption
S.K. Rowland, J. P. Lockwood, F. A. Trusdell, R. B. Moore, M. K. Sako, R. Y. Koyanagi, G. Kojima
2005, Journal of Volcanology and Geothermal Research (146) 26-59
Anatahan island is 9.5 km east–west by 3.5 km north–south and truncated by an elongate caldera 5 km east–west by 2.5 km north–south. A steep-walled pit crater ∼1 km across and ∼200 m deep occupies the eastern part of the caldera. The island is the summit region of a mostly...
Assessing the competitive ability of Japanese stilt grass, Microstegium vimineum (Trin.) A. Camus
S. A. Leicht, J. A. Silander Jr., K. Greenwood
2005, Journal of the Torrey Botanical Society (132) 573-580
Microstegium vimineum (Japanese stilt grass) is an invasive grass in the eastern half of the United States which can form dense monocultures in forest understories, displacing native species. Although the loss of native species has been observed in the field, the actual competitive ability of this grass has not been...
The Pinto shear zone; a Laramide synconvergent extensional shear zone in the Mojave Desert region of the southwestern United States
M.L. Wells, M.A. Beyene, T.L. Spell, J.L. Kula, D. M. Miller, K.A. Zanetti
2005, Journal of Structural Geology (27) 1697-1720
The Pinto shear zone is one of several Late Cretaceous shear zones within the eastern fringe of the Mesozoic magmatic arc of the southwest Cordilleran orogen that developed synchronous with continued plate convergence and backarc shortening. We demonstrate an extensional origin for the shear zone by describing the shear-zone geometry...
Foraging ecology of Caspian Terns in the Columbia River Estuary, USA
Donald E. Lyons, Daniel D. Roby, Ken Collis
2005, Waterbirds (28) 280-291
Comparisons were made of the foraging ecology of Caspian Terns (Sterna caspia) nesting on two islands in the Columbia River estuary using radio telemetry and observations of prey fed to chicks and mates at each colony. Early in the chick-rearing period, radio-tagged terns nesting...
An efficient algorithm for double-difference tomography and location in heterogeneous media, with an application to the Kilauea volcano
V. Monteiller, J.-L. Got, J. Virieux, P. Okubo
2005, Journal of Geophysical Research B: Solid Earth (110) 1-22
Improving our understanding of crustal processes requires a better knowledge of the geometry and the position of geological bodies. In this study we have designed a method based upon double-difference relocation and tomography to image, as accurately as possible, a heterogeneous medium containing seismogenic objects. Our approach consisted not only...
Further evidence for the invasion and establishment of Pterois volitans (Teleostei: Scorpaenidae) along the Atlantic Coast of the United States
H.S. Meister, D.M. Wyanski, J.K. Loefer, Steve W. Ross, A.M. Quattrini, K. J. Sulak
2005, Southeastern Naturalist (4) 193-206
We document the continued population expansion of red lionfish, Pterois volitans, the first documented successful introduction of an invasive marine fish species from the western Pacific to Atlantic coastal waters of the United States. Red lionfish are indigenous to the Indo-Pacific and have apparently established one or more breeding populations...
Tar yields from low-temperature carbonization of coal facies from the Powder River Basin, Wyoming, USA
Ronald W. Stanton, Peter D. Warwick, Sharon M. Swanson
2005, International Journal of Coal Geology (63) 13-26
Tar yields from low-temperature carbonization correlate with the amount of crypto-eugelinite in samples selected to represent petrographically distinct coal facies of the Wyodak-Anderson coal zone. Tar yields from Fischer Assay range from <1 to 11 wt.% on a dry basis and correspond (r = 0.72) to crypto-eugelinite contents of the coal that...
