Molecular epidemiology of eastern equine encephalitis Virus, New York
David S. Young, Laura D. Kramer, Joseph G. Maffei, Robert J. Dusek, P. Bryon Backenson, Christopher N. Mores, Kristen A. Bernard, Gregory D. Ebel
2008, Emerging Infectious Diseases (14) 454-460
Perpetuation, overwintering, and extinction of eastern equine encephalitis virus (EEEV) in northern foci are poorly understood. We therefore sought to describe the molecular epidemiology of EEEV in New York State during current and past epizootics. To determine whether EEEV overwinters, is periodically reintroduced, or both, we sequenced the E2 and...
2005 volcanic activity in Alaska, Kamchatka, and the Kurile Islands: Summary of events and response of the Alaska Volcano Observatory
R. G. McGimsey, C.A. Neal, J. P. Dixon, Sergey Ushakov
2008, Scientific Investigations Report 2007-5269
The Alaska Volcano Observatory (AVO) responded to eruptive activity or suspected volcanic activity at or near 16 volcanoes in Alaska during 2005, including the high profile precursory activity associated with the 2005–06 eruption of Augustine Volcano. AVO continues to participate in distributing information about eruptive activity on the Kamchatka Peninsula,...
Growth of the 2004-2006 lava-dome complex at Mount St. Helens, Washington
James W. Vallance, David J. Schneider, Steve P. Schilling
David R. Sherrod, William E. Scott, Peter H. Stauffer, editor(s)
2008, Professional Paper 1750-9
The eruption of Mount St. Helens from 2004 to 2006 has comprised extrusion of solid lava spines whose growth patterns were shaped by a large space south of the 1980-86 dome that was occupied by the unique combination of glacial ice, concealed subglacial slopes, the crater walls, and relics of...
Detecting changes in riparian habitat conditions based on patterns of greenness change: A case study from the Upper San Pedro River Basin, USA
K. Bruce Jones, Curtis M. Edmonds, E. Terrence Slonecker, James Wickham, Anne Neale, Timothy G. Wade, Kurt H. Riitters, William Kepner
2008, Ecological Indicators (8) 89-99
Healthy riparian ecosystems in arid and semi-arid regions exhibit shifting patterns of vegetation in response to periodic flooding. Their conditions also depend upon the amount of grazing and other human uses. Taking advantage of these system properties, we developed and tested an approach that utilizes historical Landsat data to track changes in the patterns of greenness (Normalized Difference...
Lake Manix shorelines and Afton Canyon terraces: Implications for incision of Afton Canyon
Marith C. Reheis, Joanna L. Redwine
2008, Book chapter, Late Cenozoic Drainage History of the Southwestern Great Basin and Lower Colorado River Region: Geologic and Biotic Perspectives
Lake Manix, in south-central California, was the terminal basin of the Mojave River until the late Pleistocene, when it drained east to the Lake Mojave Basin. Based on new field observations, radiocarbon ages, and soil development, we propose modifications to previously published hypotheses on the timing of the last 543...
Overview of the 2004 to 2006, and continuing, eruption of Mount St. Helens, Washington
William E. Scott, David R. Sherrod, Cynthia A. Gardner
David R. Sherrod, William E. Scott, Peter H. Stauffer, editor(s)
2008, Professional Paper 1750-1
Rapid onset of unrest at Mount St. Helens on September 23, 2004, initiated an uninterrupted lava-dome-building eruption that continues to the time of writing this overview (spring 2006) for a volume of papers focused on this eruption. About three weeks of intense seismic unrest and localized surface uplift, punctuated by...
Magmatism and tectonics in a tilted crustal section through a continental arc, eastern Transverse Ranges and southern Mojave Desert
Andrew P. Barth, J. Lawford Anderson, Carl E. Jacobson, Scott R. Paterson, Joseph L. Wooden
E. M. Duebendorfer, Eugene I. Smith, editor(s)
2008, Book chapter, Field guide to plutons, volcanoes, faults, reefs, dinosaurs, and possible glaciation in selected areas of Arizona, California, and Nevada
This field guide describes a two-and-one-half day transect, from east to west across southern California, from the Colorado River to the San Andreas fault. Recent geochronologic results for rocks along the transect indicate the spatial and temporal relationships between subarc and retroarc shortening and Cordilleran arc magmatism. The transect begins...
Paleoseismicity and neotectonics of the Aleutian subduction zone — An overview
Gary A. Carver, George Plafker
Jeffery T. Freymueller, Peter J. Haeussler, Robert L. Wesson, Goran Ekstrom, editor(s)
2008, Book chapter, Active tectonics and seismic potential of Alaska
The Aleutian subduction zone is one of the most seismically active plate boundaries and the source of several of the world’s largest historic earthquakes. The structural architecture of the subduction zone varies considerably along its length. At the eastern end is a tectonically complex collision zone where the allochthonous Yakutat...
Ecology of coral reefs in the US Virgin Islands
Caroline S. Rogers, Jeff Miller, Erinn Muller, Peter J Edmunds, Richard S. Nemeth, James P. Beets, Alan M. Friedlander, Tyler B. Smith, Rafe Boulon, Christopher F.G. Jeffrey, Charles Menza, Chris Caldow, Nasseer Idrisi, Barbara Kojis, Mark E. Monaco, Anthony S. Spitzack, Elizabeth H. Gladfelter, John C. Ogden, Zandy M Hillis-Star, Ian Lundgren, William B. Schill, Ilsa B. Kuffner, Laurie L. Richardson, Barry E. Devine, Joshua D. Voss
Bernhard Riegl, Richard E. Dodge, editor(s)
2008, Book chapter, Coral reefs in the US Virgin Islands
The US Virgin Islands (USVI ) in the northeastern Caribbean, consist of St. Croix (207 km2), St. Thomas (83 km2), St. John (52 km2) and numerous smaller islands (Dammann and Nellis 1992). They are part of the Lesser Antilles and Leeward Islands on the eastern boundary of the Caribbean plate...
New episodes of volcanism at Kilauea Volcano, Hawaii
Michael P. Poland, Asta Mikijus, Tim R. Orr, J. Sutton, Carl Thornber, David C. Wilson
2008, Eos, Transactions, American Geophysical Union (89) 37-38
Mid‐2007 was a time of intense activity at Kilauea Volcano, Hawaii (see Figure 1). In June, the long‐lived Pu'u 'Ō'ō—Kupaianaha eruption, a dual‐vent system along the east rift zone (ERZ) that has been erupting since 1983 [Heliker et al., 2003], paused due to the outbreak of a new vent farther...
Significance of detrital zircons in upper Devonian ocean-basin strata of the Sonora allochthon and Lower Permian synorogenic strata of the Mina Mexico foredeep, central Sonora, Mexico
F. G. Poole, G. E. Gehrels, John H. Stewart
2008, Special Paper of the Geological Society of America 121-131
U-Pb isotopic dating of detrital zircons from a conglomeratic barite sandstone in the Sonora allochthon and a calciclastic sandstone in the Mina Mexico foredeep of the Minas de Barita area reveals two main age groups in the Upper Devonian part of the Los Pozos Formation, 1.73-1.65 Ga and 1.44-1.42 Ga;...
Environmental geochemistry of a Kuroko-type massive sulfide deposit at the abandoned Valzinco mine, Virginia, USA
R.R. Seal II, J. M. Hammarstrom, A.N. Johnson, N.M. Piatak, G.A. Wandless
2008, Applied Geochemistry (23) 320-342
The abandoned Valzinco mine, which worked a steeply dipping Kuroko-type massive sulfide deposit in the Virginia Au-pyrite belt, contributed significant metal-laden acid-mine drainage to the Knight's Branch watershed. The host rocks were dominated by metamorphosed felsic volcanic rocks, which offered limited acid-neutralizing potential. The ores were dominated by pyrite, sphalerite,...
Devonian brachiopods of southwesternmost laurentia: Biogeographic affinities and tectonic significance
A. J. Boucot, Forrest G. Poole, R. Amaya-Martinez, A. G. Harris, Charles Sandberg, William R. Page
2008, Special Paper of the Geological Society of America 77-97
Three brachiopod faunas discussed herein record different depositional and tectonic settings along the southwestern margin of Laurentia (North America) during Devonian time. Depositional settings include inner continental shelf (Cerros de Los Murcielagos), medial continental shelf (Rancho Placeritos), and offshelf continental rise (Rancho Los Chinos). Ages of Devonian brachiopod faunas include...
Reconstructed historical land cover and biophysical parameters for studies of land-atmosphere interactions within the eastern United States
Louis T. Steyaert, R.G. Knox
2008, Journal of Geophysical Research D: Atmospheres (113) 1-27
Over the past 350 years, the eastern half of the United States experienced extensive land cover changes. These began with land clearing in the 1600s, continued with widespread deforestation, wetland drainage, and intensive land use by 1920, and then evolved to the present-day landscape of forest regrowth, intensive agriculture, urban...
Canadian groundwater inventory: Regional hydrogeological characterization of the south-central part of the maritimes basin
C. Rivard, Y. Michaud, C. Deblonde, V. Boisvert, C. Carrier, R. H. Morin, T. Calvert, H. Vigneault, D. Conohan, S. Castonguay, R. Lefebvre, A. Rivera, M. Parent
2008, Bulletin of the Geological Survey of Canada 1-96
The Maritimes Groundwater Initiative (MGWI) is a large, integrated, regional hydrogeological study focusing on a representative area of the Maritimes Basin in eastern Canada. The study area covers a land surface of 10 500 km2, of which 9 400 km2 are underlain by sedimentary rocks. This sedimentary bedrock is composed...
Mineral sources and transport pathways for arsenic release in a coastal watershed, USA
Nora K. Foley, Robert A. Ayuso
2008, Geochemistry: Exploration, Environment, Analysis (8) 59-75
Metasedimentary bedrock of coastal Maine contains a diverse suite of As-bearing minerals that act as significant sources of elements found in ground and surface waters in the region. Arsenic sources in the Penobscot Formation include, in order of decreasing As content by weight: löllingite and realgar (c.70%), arsenopyrite, cobaltite, glaucodot,...
Micropaleontologic record of late Pliocene and Quaternary paleoenvironments in the northern Albemarle Embayment, North Carolina, U.S.A.
S.J. Culver, K.M. Farrell, D. J. Mallinson, B. P. Horton, Debra A. Willard, E.R. Thieler, S.R. Riggs, S.W. Snyder, J.F. Wehmiller, C.E. Bernhardt, C. Hillier
2008, Palaeogeography, Palaeoclimatology, Palaeoecology (264) 54-77
Micropaleontological data provide a strong actualistic basis for detailed interpretations of Quaternary paleoenvironmental change. The 90 m-thick Quaternary record of the Albemarle Embayment in the mid-Atlantic coastal plain of the USA provides an excellent opportunity to use such an approach in a region where the details of Quaternary environmental change are...
Dislocation models of interseismic deformation in the western United States
F. F. Pollitz, P. McCrory, J. Svarc, J. Murray
2008, Journal of Geophysical Research B: Solid Earth (113)
The GPS-derived crustal velocity field of the western United States is used to construct dislocation models in a viscoelastic medium of interseismic crustal deformation. The interseismic velocity field is constrained by 1052 GPS velocity vectors spanning the ???2500-km-long plate boundary zone adjacent to the San Andreas fault and Cascadia subduction...
SHRIMP-RG U-Pb isotopic systematics of zircon from the Angel Lake orthogneiss, East Humboldt Range, Nevada: Is this really archean crust?
Wayne R. Premo, Pedro Castineiras, Joseph L. Wooden
2008, Geosphere (4) 963-975
New SHRIMP-RG (sensitive high-resolution ion microprobe-reverse geometry) data confirm the existence of Archean components within zircon grains of a sample from the orthogneiss of Angel Lake, Nevada, United States, previously interpreted as a nappe of Archean crust. However, the combined evidence strongly suggests that this orthogneiss is a highly deformed,...
Northeast storms ranked by wind stress and wave-generated bottom stress observed in Massachusetts Bay, 1990-2006
B. Butman, C. R. Sherwood, P.S. Dalyander
2008, Continental Shelf Research (28) 1231-1245
Along the coast of the northeastern United States, strong winds blowing from the northeast are often associated with storms called northeasters, coastal storms that strongly influence weather. In addition to effects caused by wind stress, the sea floor is affected by bottom stress associated with these storms. Bottom stress caused...
Impact effects and regional tectonic insights: Backstripping the Chesapeake Bay impact structure
T. Hayden, M. Kominz, David S. Powars, Lucy E. Edwards, K.G. Miller, J.V. Browning, A.A. Kulpecz
2008, Geology (36) 327-330
The Chesapeake Bay impact structure is a ca. 35.4 Ma crater located on the eastern seaboard of North America. Deposition returned to normal shortly after impact, resulting in a unique record of both impact-related and subsequent passive margin sedimentation. We use backstripping to show that the impact strongly affected sedimentation...
The annual migration cycle of emperor geese in western Alaska
Jerry W. Hupp, Joel A. Schmutz, Craig R. Ely
2008, Arctic (61) 23-34
Most emperor geese (Chen canagica) nest in a narrow coastal region of the Yukon-Kuskokwim Delta (YKD) in western Alaska, but their winter distribution extends more than 3000 km from Kodiak Island, Alaska, to the Commander Islands, Russia. We marked 53 adult female emperor geese with satellite transmitters on the YKD...
Late Devonian glacial deposits from the eastern United States signal an end of the mid-Paleozoic warm period
D. K. Brezinski, C. B. Cecil, V.W. Skema, R. Stamm
2008, Palaeogeography, Palaeoclimatology, Palaeoecology (268) 143-151
A Late Devonian polymictic diamictite extends for more than 400 km from northeastern Pennsylvania across western Maryland and into east-central West Virginia. The matrix-supported, unbedded, locally sheared diamictite contains subangular to rounded clasts up to 2 m in diameter. The mostly rounded clasts are both locally derived and exotic; some exhibit striations, faceting, and polish. The diamictite commonly is...
Impacts of post-glacial lake drainage events and revised chronology of the Champlain Sea episode 13-9 ka
T. M. Cronin, P.L. Manley, S. Brachfeld, T.O. Manley, Debra A. Willard, J.-P. Guilbault, J.A. Rayburn, R. Thunell, M. Berke
2008, Palaeogeography, Palaeoclimatology, Palaeoecology (262) 46-60
Lithologic, CHIRP (Compressed High Intensity Radar Pulse) sonar, paleomagnetic, stable isotopic and micropaleontological analyses of sediment cores from Lake Champlain (New York, Vermont) were used to determine the age of the post-glacial Champlain Sea marine episode, the timing of salinity changes and their relationship to freshwater discharge from mid-continent glacial...
Non-spore forming eubacteria isolated at an altitude of 20,000 m in Earth's atmosphere: extended incubation periods needed for culture-based assays
Dale W. Griffin
2008, Aerobiologia (24) 19-25
On 13 August 2004, an atmospheric sample was collected at an altitude of 20,000 m along a west to east transect over the continental United States by NASA’s Stratospheric and Cosmic Dust Program. This sample was then shipped to the US Geological Survey’s Global Desert Dust program for microbiological analyses....
