Geology and petroleum potential of the rifted margins of the Canada Basin
D.W. Houseknecht, Kenneth J. Bird
2011, Geological Society Memoir 509-526
Three sides of the Canada Basin are bordered by high-standing, conjugate rift shoulders of the Chukchi Borderland, Alaska and Canada. The Alaska and Canada margins are mantled with thick, growth-faulted sediment prisms, and the Chukchi Borderland contains only a thin veneer of sediment. The rift-margin strata of Alaska and Canada...
U.S. Geological Survey circum-arctic resource appraisal
D. L. Gautier
2011, Conference Paper, Society of Petroleum Engineers - Arctic Technology Conference 2011
Among the greatest uncertainties in future energy supply is the amount of oil and gas yet to be found in the Arctic. Using a probabilistic geology-based methodology, the U.S. Geological Survey has assessed the area north of the Arctic Circle. The Circum-Arctic Resource Appraisal (CARA) consists of three parts: (1)...
Permafrost-associated natural gas hydrate occurrences on the Alaska North Slope
Timothy S. Collett, Myung W. Lee, Warren F. Agena, John J. Miller, Kristen A. Lewis, M.V. Zyrianova, R. Boswell, T.L. Inks
2011, Marine and Petroleum Geology (28) 279-294
In the 1960s Russian scientists made what was then a bold assertion that gas hydrates should occur in abundance in nature. Since this early start, the scientific foundation has been built for the realization that gas hydrates are a global phenomenon,...
King eider foraging effort during the pre-breeding period in Alaska
Steffen Oppel, Abby N. Powell, Malcolm G. Butler
2011, The Condor (113) 52-60
For reproduction, many arctic-nesting migratory birds rely on nutrients obtained on the breeding grounds, so they devote sufficient time to foraging immediately prior to nesting. However, little is known about the increase in foraging effort necessary to meet the energetic requirements of reproduction. In early June 2006 and 2008, we...
Formation pressure testing at the Mount Elbert Gas Hydrate Stratigraphic Test Well, Alaska North Slope: Operational summary, history matching, and interpretations
B. Anderson, S. Hancock, S. Wilson, C. Enger, Timothy S. Collett, R. Boswell, R. Hunter
2011, Marine and Petroleum Geology (28) 478-492
In February 2007, the U.S. Department of Energy, BP Exploration (Alaska), and the U.S. Geological Survey, collected open-hole pressure-response data, as well as gas and water sample collection, in a gas hydrate reservoir (the BPXA-DOE-USGS Mount Elbert Gas Hydrate Stratigraphic Test Well) using Schlumberger's Modular Dynamics Formation Tester (MDT)...
Determining the seismic source mechanism and location for an explosive eruption with limited observational data: Augustine Volcano, Alaska
P.B. Dawson, B. A. Chouet, J. Power
2011, Geophysical Research Letters (38)
Waveform inversions of the very-long-period components of the seismic wavefield produced by an explosive eruption that occurred on 11 January, 2006 at Augustine Volcano, Alaska constrain the seismic source location to near sea level beneath the summit of the volcano. The calculated moment tensors indicate the presence of a volumetric...
Gas geochemistry of the Mount Elbert Gas Hydrate Stratigraphic Test Well, Alaska North Slope: implications for gas hydrate exploration in the Arctic
T.D. Lorenson, T. S. Collett, R.B. Hunter
2011, Marine and Petroleum Geology (28) 343-360
Gases were analyzed from well cuttings, core, gas hydrate, and formation tests at the BPXA-DOE-USGS Mount Elbert Gas Hydrate Stratigraphic Test Well, drilled within the Milne Point Unit, Alaska North Slope. The well penetrated a portion of the Eileen gas hydrate deposit, which overlies the more deeply buried Prudhoe Bay,...
Patterns of use and distribution of king eiders and black scoters during the annual cycle in northeastern Bristol Bay, Alaska
Jason L Schamber, Paul L. Flint, Abby N. Powell
2010, Marine Biology (157) 2169-2176
Northeastern Bristol Bay, Alaska, which includes three large estuaries, is used by multiple sea duck species during the annual cycle. Limited aerial surveys indicate that this area supports tens of thousands of king eiders and black scoters during spring migration and the autumn molt. Existing satellite telemetry data were used...
The use of genetics for the management of a recovering population: temporal assessment of migratory peregrine falcons in North America
Jeff A. Johnson, Sandra L. Talbot, George K. Sage, Kurt K. Burnham, Joseph W. Brown, Tom L. Maechtle, William S. Seegar, Michael A. Yates, Bud Anderson, David P. Mindell
2010, PLoS ONE (5)
Background:Our ability to monitor populations or species that were once threatened or endangered and in the process of recovery is enhanced by using genetic methods to assess overall population stability and size over time. This can be accomplished most directly by obtaining genetic measures from temporally-spaced samples that reflect...
Peat
L.E. Apodaca
2010, Mining Engineering (62) 66-66
In 2009, domestic production of peat, excluding Alaska, was estimated to be 610 kt (672,000 st), compared with 615 kt (678,000 st) in 2008. In 2009, imports decreased to 906 kt (999,000 st) compared with 936 kt (1 million st) in 2008, and exports were estimated to have increased to...
Prevalence of antibodies to type A influenza virus in wild avian species using two serologic assays
Justin D. Brown, M. Page Luttrell, Roy D. Berghaus, Whitney Kistler, Shamus P. Keeler, Andrea Howey, Benjamin Wilcox, Jeffrey S. Hall, Larry Niles, Amanda Dey, Gregory Knutsen, Kristen Fritz, David E. Stallknecht
2010, Journal of Wildlife Diseases (46) 896-911
Serologic testing to detect antibodies to avian influenza (AI) virus has been an underused tool for the study of these viruses in wild bird populations, which traditionally has relied on virus isolation and reverse transcriptase-polymerase chain reaction (RT-PCR). In a preliminary study, a recently developed commercial blocking enzyme-linked immunosorbent assay...
Aviation response to a widely dispersed volcanic ash and gas cloud from the August 2008 eruption of Kasatochi, Alaska, USA
Marianne Guffanti, David J. Schneider, Kristi L. Wallace, Tony Hall, Dov R. Bensimon, Leonard J. Salinas
2010, Journal of Geophysical Research D: Atmospheres (115)
The extensive volcanic cloud from Kasatochi's 2008 eruption caused widespread disruptions to aviation operations along Pacific oceanic, Canadian, and U.S. air routes. Based on aviation hazard warnings issued by the National Oceanic and Atmospheric Administration, U.S. Geological Survey, the Federal Aviation Administration, and Meteorological Service of Canada, air carriers largely...
Interdisciplinary studies of eruption at Chaitén volcano, Chile
John S. Pallister, Jon J. Major, Thomas C. Pierson, Richard P. Holitt, Jacob B. Lowenstern, John C. Eichelberger, Lara Luis, Hugo Moreno, Jorge Muñoz, Jonathan M. Castro, Andrés Iroumé, Andrea Andreoli, Julia Jones, Fred Swanson, Charlie Crisafulli
2010, Eos, Transactions, American Geophysical Union (91) 381
High-silica rhyolite magma fuels Earth's largest and most explosive eruptions. Recurrence intervals for such highly explosive eruptions are in the 100- to 100,000-year time range, and there have been few direct observations of such eruptions and their immediate impacts. Consequently, there was keen interest within the volcanology community when the...
Winter distribution, movements, and annual survival of radiomarked Vancouver Canada geese in southeast Alaska
Jerry W. Hupp, John I. Hodges Jr., Bruce P. Conant, Brandt W. Meixell, Debbie J. Groves
2010, Journal of Wildlife Management (74) 274-284
Management of Pacific Flyway Canada geese (Branta canadensis) requires information on winter distribution of different populations. Recoveries of tarsus bands from Vancouver Canada geese (B. canadensis fulva) marked in southeast Alaska, USA, ≥4 decades ago suggested that ≥83% of the population was non-migratory and that annual adult survival was high...
[Book review] Anaesthetic and Sedative Techniques for Aquatic Animals, by L. G. Ross and B. Ross
Daniel M. Mulcahy
2010, Reviews in Fish Biology and Fisheries (20) 139-140
Review of: L. G. Ross and B. Ross: Anaesthetic and sedative techniques for aquatic animals (Third Edition). Blackwell Publishing, Oxford, 2008, x + 222 pp, Hardback, ISBN-978-1-4051-4938-9....
Anisotropy, repeating earthquakes, and seismicity associated with the 2008 eruption of Okmok Volcano, Alaska
Jessica H. Johnson, Stephanie Prejean, Martha K. Savage, John Townend
2010, Journal of Geophysical Research (115)
We use shear wave splitting (SWS) analysis and double-difference relocation to examine temporal variations in seismic properties prior to and accompanying magmatic activity associated with the 2008 eruption of Okmok volcano, Alaska. Using bispectrum cross-correlation, a multiplet of 25 earthquakes is identified spanning five years leading up to the eruption,...
Ground surface deformation patterns, magma supply, and magma storage at Okmok volcano, Alaska, from InSAR analysis: 2. Coeruptive deflation, July-August 2008
Zhong Lu, Daniel Dzurisin
2010, Journal of Geophysical Research B: Solid Earth (115)
A hydrovolcanic eruption near Cone D on the floor of Okmok caldera, Alaska, began on 12 July 2008 and continued until late August 2008. The eruption was preceded by inflation of a magma reservoir located beneath the center of the caldera and ∼3 km below sea level (bsl), which began...
Origins of large-volume, compositionally zoned volcanic eruptions: New constraints from U-series isotopes and numerical thermal modeling for the 1912 Katmai-Novarupta eruption
Simon Turner, Mike Sandiford, Mark Reagan, Chris Hawkesworth, Wes Hildreth
2010, Journal of Geophysical Research B: Solid Earth (115) B12201
We present the results of a combined U-series isotope and numerical modeling study of the 1912 Katmai-Novarupta eruption in Alaska. A stratigraphically constrained set of samples have compositions that range from basalt through basaltic andesite, andesite, dacite, and rhyolite. The major and trace element range can be modeled by 80–90%...
Ground surface deformation patterns, magma supply, and magma storage at Okmok volcano, Alaska, from InSAR analysis: 1. Intereruption deformation, 1997–2008
Zhong Lu, Daniel Dzurisin, Juliet Biggs, Charles Wicks Jr., Steve McNutt
2010, Journal of Geophysical Research (115)
Starting soon after the 1997 eruption at Okmok volcano and continuing until the start of the 2008 eruption, magma accumulated in a storage zone centered ~3.5 km beneath the caldera floor at a rate that varied with time. A Mogi-type point pressure source or finite sphere with a radius of...
Spring migration and summer destinations of northern pintails from the coast of southern California
Michael R. Miller, John Y. Takekawa, Daniel S. Battaglia, Richard T. Golightly, William M. Perry
2010, Southwestern Naturalist (55) 501-509
To examine pathways, timing, and destinations during migration in spring, we attached satellite-monitored transmitters (platform transmitting terminals) to 10 northern pintails (Anas acuta) during February 2001, at Point Mugu, Ventura County, California. This is a wintering area on the southern coast of California. We obtained locations from five adult males...
Satellite‐tracking of Northern Pintail Anas acuta during outbreaks of the H5N1 virus in Japan: Implications for virus spread
Noriyuki Yamaguchi, Jerry W. Hupp, Hiroyoshi Higuchi, Paul L. Flint, John M. Pearce
2010, Ibis (152) 262-271
We fitted Northern Pintail Anas acuta in Japan with satellite transmitters and monitored their spring migration movements relative to locations where the highly pathogenic H5N1 avian influenza virus was detected in Whooper Swans Cygnus cygnus in 2008. Pintails were assumed not to be infected with the H5N1 virus at the time they were marked...
Seasonal movements, winter range use, and migratory connectivity of the Black Oystercatcher
Matthew Johnson, Peter Clarkson, Michael I. Goldstein, Susan M. Haig, Richard B. Lanctot, David F. Tessler, Denny Zwiefelhofer
2010, The Condor (112) 731-743
The Black Oystercatcher (Haematopus bachmani) is an intertidal obligate along North America's Pacific coast and a species of high conservation concern (population size 8900–11 000 individuals). Understanding birds' movements and space use throughout the annual cycle has become paramount in the face of changing environmental conditions, and intertidal species may...
Recent ecological divergence despite migration in sockeye salmon (Oncorhynchus nerka)
Scott A. Pavey, Jennifer L. Nielsen, Troy R. Hamon
2010, Evolution (64) 1773-1783
Ecological divergence may result when populations experience different selection regimes, but there is considerable discussion about the role of migration at the beginning stages of divergence before reproductive isolating mechanisms have evolved. However, detection of past migration is difficult in current populations and tools to differentiate genetic similarities due to...
Potential spread of highly pathogenic avian influenza H5N1 by wildfowl: dispersal ranges and rates determined from large-scale satellite telemetry
Nicolas Gaidet, Julien Cappelle, John Y. Takekawa, Diann J. Prosser, Samuel A. Iverson, David C. Douglas, William M. Perry, Taej Mundkur, Scott H. Newman
2010, Journal of Applied Ecology (47) 1147-1157
1. Migratory birds are major candidates for long-distance dispersal of zoonotic pathogens. In recent years, wildfowl have been suspected of contributing to the rapid geographic spread of the highly pathogenic avian influenza (HPAI) H5N1 virus. Experimental infection studies reveal that some wild ducks, geese and swans shed this virus asymptomatically...
Introduction - The impacts of the 2008 eruption of Kasatochi Volcano on terrestrial and marine ecosystems in the Aleutian Islands, Alaska
Anthony R. DeGange, G. Vernon Byrd, Lawrence R. Walker, C. F. Waythomas
2010, Arctic, Antarctic, and Alpine Research (42) 245-249
The Aleutian Islands are situated on the northern edge of the so-called “Pacific Ring of Fire,” a 40,000-km-long horseshoe-shaped assemblage of continental landmasses and islands bordering the Pacific Ocean basin that contains many of the world's active and dormant volcanoes. Schaefer et al. (2009) listed 27 historically active volcanoes in...
