Multilevel groundwater monitoring of hydraulic head and temperature in the eastern Snake River Plain aquifer, Idaho National Laboratory, Idaho, 2007-08
Jason C. Fisher, Brian V. Twining
2011, Scientific Investigations Report 2010-5253
During 2007 and 2008, the U.S. Geological Survey, in cooperation with the U.S. Department of Energy, collected quarterly depth-discrete measurements of fluid pressure and temperature in six boreholes located in the eastern Snake River Plain aquifer of Idaho. Each borehole was instrumented with a multilevel monitoring system consisting of a...
Cyclic spattering, seismic tremor, and surface fluctuation within a perched lava channel, Kilauea Volcano
Matthew R. Patrick, Tim R. Orr, David C. Wilson, David C. Dow, R. Freeman
2011, Bulletin of Volcanology (73) 639-653
In late 2007, a perched lava channel, built up to 45 m above the preexisting surface, developed during the ongoing eruption near Pu‘u ‘Ō‘ō cone on Kīlauea Volcano’s east rift zone. The lava channel was segmented into four pools extending over a total of 1.4 km. From late October to mid-December, a...
Geologic map of the Caetano caldera, Lander and Eureka counties, Nevada
Joseph P. Colgan, Christopher D. Henry, David A. John
2011, Nevada Bureau of Mines and Geology Map 174
The Eocene (34 Ma) Caetano caldera in north-central Nevada offers an exceptional opportunity to study the physical and petrogenetic evolution of a large (20 km by 10–18 km pre-extensional dimensions) silicic magma chamber, from precursor magmatism to caldera collapse and intrusion of resurgent plutons. Caldera-related rocks shown on this map...
Seismic swarm associated with the 2008 eruption of Kasatochi Volcano, Alaska: earthquake locations and source parameters
Natalia G. Ruppert, Stephanie G. Prejean, Roger A. Hansen
2011, Journal of Geophysical Research (116)
An energetic seismic swarm accompanied an eruption of Kasatochi Volcano in the central Aleutian volcanic arc in August of 2008. In retrospect, the first earthquakes in the swarm were detected about 1 month prior to the eruption onset. Activity in the swarm quickly intensified less than 48 h prior to...
The regional structural setting of the 2008 Wells earthquake and Town Creek Flat Basin: implications for the Wells earthquake fault and adjacent structures
Christopher S. Henry, Joseph P. Colgan
2011, Nevada Bureau of Mines and Geology Special Publication 36
The 2008 Wells earthquake occurred on a northeast-striking, southeast-dipping fault that is clearly delineated by the aftershock swarm to a depth of 10-12 km below sea level. However, Cenozoic rocks and structures around Wells primarily record east-west extension along north- to north-northeast-striking, west-dipping normal faults that formed during the middle...
The Edwardsburg Formation and related rocks, Windermere Supergroup, central Idaho, USA
Karen Lund, John N. Aleinikoff, Karl V. Evans
2011, Book chapter, The Geological Record of Neoproterozoic
In central Idaho, Neoproterozoic stratified rocks are engulfed by the Late Cretaceous Idaho batholith and by Eocene volcanic and plutonic rocks of the Challis event. Studied sections in the Gospel Peaks and Big Creek areas of west-central Idaho are in roof pendants of the Idaho batholith. A drill core section...
An overview of the petroleum geology of the Arctic
A.M. Spencer, A.F. Embry, Donald L. Gautier, A.V. Stoupakova, K. Sorensen
2011, Geological Society Memoir 1-15
Nine main petroleum provinces containing recoverable resources totalling 61 Bbbl liquids+269 Bbbloe of gas are known in the Arctic. The three best known major provinces are: West Siberia–South Kara, Arctic Alaska and Timan–Pechora. They have been sourced principally from, respectively, Upper Jurassic, Triassic and Devonian marine source rocks and their...
Wave climate and trends along the eastern Chukchi Arctic Alaska coast
L. H. Erikson, C. D. Storlazzi, R. E. Jensen
2011, Conference Paper, Solutions to Coastal Disasters 2011 - Proceedings of the 2011 Solutions to Coastal Disasters Conference
Due in large part to the difficulty of obtaining measurements in the Arctic, little is known about the wave climate along the coast of Arctic Alaska. In this study, numerical model simulations encompassing 40 years of wave hind-casts were used to assess mean and extreme wave conditions. Results indicate that...
Scale-dependent factors affecting North American river otter distribution in the midwest
Mackenzie R. Jeffress, Craig P. Paukert, Joanna B. Whittier, B. K. Sandercock, P. S. Gipson
2011, American Midland Naturalist (166) 177-193
The North American river otter (Lontra canadensis) is recovering from near extirpation throughout much of its range. Although reintroductions, trapping regulations and habitat improvements have led to the reestablishment of river otters in the Midwest, little is known about how their distribution is influenced by local- and landscape-scale habitat....
Distribution and characterization of in-channel large wood in relation to geomorphic patterns on a low-gradient river
Bertrand Moulin, Edward R. Schenk, Cliff R. Hupp
2011, Earth Surface Processes and Landforms (36) 1137-1151
A 177 river km georeferenced aerial survey of in-channel large wood (LW) on the lower Roanoke River, NC was conducted to determine LW dynamics and distributions on an eastern USA low-gradient large river. Results indicate a system with approximately 75% of the LW available for transport either as detached individual...
Wintering bird response to fall mowing of herbaceous buffers
P.J. Blank, J.R. Parks, G.P. Dively
2011, Wilson Journal of Ornithology (123) 59-64
Herbaceous buffers are strips of herbaceous vegetation planted between working agricultural land and streams or wetlands. Mowing is a common maintenance practice to control woody plants and noxious weeds in herbaceous buffers. Buffers enrolled in Maryland's Conservation Reserve Enhancement Program (CREP) cannot be mowed during the primary bird nesting season...
No major stratigraphic gap exists near the Middle-Upper Pennsylvanian (Desmoinesian-Missourian) boundary in North America
H. J. Falcon-Lang, P.H. Heckel, William A. DiMichele, B.M. Blake Jr., C.R. Easterday, C.F. Eble, S. Elrick, Robert A. Gastaldo, S.F. Greb, R.L. Martino, Nelson W. John, H.W. Pfefferkorn, T.L. Phillips, S.J. Rosscoe
2011, Palaios (26) 125-139
Interregional correlation of the marine zones of major cyclothems between North America and eastern Europe does not support assertions that a major stratigraphic gap exists between the traditional regional Desmoinesian and Missourian stages in North America. Such a gap was previously proposed to explain an abrupt change in megafloral assemblages...
Spatial and temporal trends of selected trace elements in liver tissue from polar bears (Ursus maritimus) from Alaska, Canada and Greenland
Heli Routti, Robert J. Letcher, Erik W. Born, Marsha Branigan, Rune Dietz, Thomas J. Evans, Aaron T. Fisk, Elizabeth L. Peacock, Christian Sonne
2011, Journal of Environmental Monitoring (13) 2260-2267
Spatial trends and comparative changes in time of selected trace elements were studied in liver tissue from polar bears from ten different subpopulation locations in Alaska, Canadian Arctic and East Greenland. For nine of the trace elements (As, Cd, Cu, Hg, Mn, Pb, Rb, Se and Zn) spatial trends were...
Critical nitrogen deposition loads in high-elevation lakes of the western US inferred from paleolimnological records
J.E. Saros, David W. Clow, T. Blett, A.P. Wolfe
2011, Water, Air, & Soil Pollution (216) 193-202
Critical loads of nitrogen (N) from atmospheric deposition were determined for alpine lake ecosystems in the western US using fossil diatom assemblages in lake sediment cores. Changes in diatom species over the last century were indicative of N enrichment in two areas, the eastern Sierra Nevada, starting between 1960 and...
Sensitivity of Pliocene ice sheets to orbital forcing
A.M. Dolan, A.M. Haywood, D.J. Hill, H.J. Dowsett, S.J. Hunter, D.J. Lunt, S.J. Pickering
2011, Palaeogeography, Palaeoclimatology, Palaeoecology (309) 98-110
The stability of the Earth's major ice sheets is a critical uncertainty in predictions of future climate and sea level change. One method of investigating the behaviour of the Greenland and the Antarctic ice sheets in a warmer-than-modern climate is to look back at past warm periods of Earth history,...
Dispersal and behavior of Pacific halibut Hippoglossus stenolepis in the Bering Sea and Aleutian Islands region
A.C. Seitz, Timothy Loher, Brenda L. Norcross, Jennifer L. Nielsen
2011, Aquatic Biology (12) 225-239
Currently, it is assumed that eastern Pacific halibut Hippoglossus stenolepis belong to a single, fully mixed population extending from California through the Bering Sea, in which adult halibut disperse randomly throughout their range during their lifetime. However, we hypothesize that halibut dispersal is more complex than currently assumed and is not spatially...
Regional and climatic controls on seasonal dust deposition in the southwestern U.S.
Marith C. Reheis, Frank Urban
2011, Aeolian Research (3) 3-21
Vertical dust deposition rates (dust flux) are a complex response to the interaction of seasonal precipitation, wind, changes in plant cover and land use, dust source type, and local vs. distant dust emission in the southwestern U.S. Seasonal dust flux in the Mojave–southern Great Basin (MSGB) deserts, measured from 1999...
A Miocene river in northern Arizona and its implications for the Colorado River and Grand Canyon
Ivo Lucchitta, Richard F. Holm, Baerbel K. Lucchitta
2011, GSA Today (21) 4-10
The southwesterly course of the pre–late Miocene Crooked Ridge River can be traced continuously for 48 km and discontinuously for 91 km in northern Arizona. It is visible today in inverted relief. Pebbles in the river gravel came from at least as far northeast as the San Juan Mountains. The...
Emergence of viral hemorrhagic septicemia virus in the North American Great Lakes region is associated with low viral genetic diversity
T.M. Thompson, W.N. Batts, M. Faisal, P. Bowser, J.W. Casey, K. Phillips, K.A. Garver, J. Winton, Gael Kurath
2011, Diseases of Aquatic Organisms (96) 29-43
Viral hemorrhagic septicemia virus (VHSV) is a fish rhabdovirus that causes disease in a broad range of marine and freshwater hosts. The known geographic range includes the Northern Atlantic and Pacific Oceans, and recently it has invaded the Great Lakes region of North America. The goal of this work was...
Diffuse Pacific-North American plate boundary: 1000 km of dextral shear inferred from modeling geodetic data
T. Parsons, W. Thatcher
2011, Geology (39) 943-946
Geodetic measurements tell us that the eastern part of the Basin and Range Province expands in an east-west direction relative to stable North America, whereas the western part of the province moves to the northwest. We develop three-dimensional finite element representations of the western United States lithosphere in an effort...
Coral skeletal carbon isotopes (δ13C and Δ14C) record the delivery of terrestrial carbon to the coastal waters of Puerto Rico
R.P. Moyer, A.G. Grottoli
2011, Coral Reefs (30) 791-802
Tropical small mountainous rivers deliver a poorly quantified, but potentially significant, amount of carbon to the world’s oceans. However, few historical records of land–ocean carbon transfer exist for any region on Earth. Corals have the potential to provide such records, because they draw on dissolved inorganic carbon (DIC) for calcification....
Loss of volatile hydrocarbons from an LNAPL oil source
Mary Jo Baedecker, Robert P. Eganhouse, Barbara A. Bekins, Geoffrey N. Delin
2011, Journal of Contaminant Hydrology (126) 140-152
The light nonaqueous phase liquid (LNAPL) oil pool in an aquifer that resulted from a pipeline spill near Bemidji, Minnesota, was analyzed for volatile hydrocarbons (VHCs) to determine if the composition of the oil remains constant over time. Oil samples were obtained from wells at five locations in the oil...
Early Mesozoic paleogeography and tectonic evolution of the western United States: Insights from detrital zircon U-Pb geochronology, Blue Mountains Province, northeastern Oregon
Todd A. LaMaskin, J.D. Vervoort, R.J. Dorsey, J.E. Wright
2011, Geological Society of America Bulletin (123) 1939-1965
This study assesses early Mesozoic provenance linkages and paleogeographic-tectonic models for the western United States based on new petrographic and detrital zircon data from Triassic and Jurassic sandstones of the "Izee" and Olds Ferry terranes of the Blue Mountains Province, northeastern Oregon. Triassic sediments were likely derived from the Baker...
Long-term increases in young-of-the-year growth of Arctic cisco Coregonus autumnalis and environmental influences
Vanessa R. von Biela, Christian E. Zimmerman, L.L. Moulton
2011, Journal of Fish Biology (78) 39-56
Arctic cisco Coregonus autumnalis young‐of‐year (YOY) growth was used as a proxy to examine the long‐term response of a high‐latitude fish population to changing climate from 1978 to 2004. YOY growth increased over time (r2 = 0·29) and was correlated with monthly averages of the Arctic oscillation index, air temperature, east wind speed,...
Effects of human-induced alteration of groundwater flow on concentrations of naturally-occurring trace elements at water-supply wells
J. D. Ayotte, Z. Szabo, M. J. Focazio, S. M. Eberts
2011, Applied Geochemistry (26) 747-762
The effects of human-induced alteration of groundwater flow patterns on concentrations of naturally-occurring trace elements were examined in five hydrologically distinct aquifer systems in the USA. Although naturally occurring, these trace elements can exceed concentrations that are considered harmful to human health. The results show that pumping-induced hydraulic gradient changes...
