Olivine-liquid relations of lava erupted by Kilauea volcano from 1994 to 1998: Implications for shallow magmatic processes associated with the ongoing east-rift-zone eruption
Carl R. Thornber
2001, Canadian Mineralogist (39) 239-266
From 1994 through 1998, the eruption of Kîlauea, in Hawai’i, was dominated by steady-state effusion at Pu‘u ‘Ô‘ô that was briefly disrupted by an eruption 4 km uprift at Nāpau Crater on January 30, 1997. In this paper, I describe the systematic relations of whole-rock, glass, olivine, and olivine-inclusion compositions...
Effects of suspended sediment on the reproductive success of the tricolor shiner, a crevice-spawning minnow
N.M. Burkhead, H.L. Jelks
2001, Transactions of the American Fisheries Society (130) 959-968
Excessive sedimentation of rivers and creeks has been linked to increasing levels of imperilment in the diverse fish fauna of the southeastern United States. In particular, benthic-spawning fishes have decreased in both numbers and range. The tricolor shiner Cyprinella trichroistia is a crevice-spawning minnow that is widespread in the eastern...
Thermal maturity patterns in New York State using CAI and %Ro
D. J. Weary, R. T. Ryder, R.E. Nyahay
2001, Northeastern Geology and Environmental Sciences (23) 356-376
New conodont alteration index (CAI) and vitrinite reflectance (%Ro) data collected from drill holes in the Appalachian basin of New York State allow refinement of thermal maturity maps for Ordovician and Devonian rocks. CAI isotherms on the new maps show a pattern that approximates that published by Harris et al....
Water source to four U.S. wetlands: Implications for wetland management
T. C. Winter, D.O. Rosenberry, D.C. Buso, D.A. Merk
2001, Wetlands (21) 462-473
Results of long-term field studies of wetlands in four different hydrogeologic and climatic settings in the United States indicate that each has considerably different sources of water, which affects their response to climate variability and land-use practices. A fen wetland in New Hampshire is supplied almost entirely by ground water...
Mean and modal ϵ in the deaggregation of probabilistic ground motion
Stephen C. Harmsen
2001, Bulletin of the Seismological Society of America (91) 1537-1552
An important element of probabilistic seismic-hazard analysis (PSHA) is the incorporation of ground-motion uncertainty from the earthquake sources. The standard normal variate ϵ measures the difference between any specified spectral-acceleration level, or SA0, and the estimated median spectral acceleration from each probabilistic source. In this article, mean and modal values of ϵ for...
Steady state deformation of the Coso Range, east central California, inferred from satellite radar interferometry
C.W. Wicks, W. Thatcher, Francis C. Monastero, M.A. Hasting
2001, Journal of Geophysical Research B: Solid Earth (106) 13769-13780
Observations of deformation from 1992 to 1997 in the southern Coso Range using satellite radar interferometry show deformation rates of up to 35 mm yr−1 in an area ∼10 km by 15 km. The deformation is most likely the result of subsidence in an area around the Coso geothermal field. The...
The Gibbs free energy of nukundamite (Cu3.38Fe0.62S4): A correction and implications for phase equilibria
Robert R. Seal, II, E. E. Inan, Bruce S. Hemingway
2001, Canadian Mineralogist (39) 1635-1640
The Gibbs free energy of formation of nukundamite (Cu3.38Fe0.62S4) was calculated from published experimental studies of the reaction 3.25 Cu3.38Fe0.62S4 + S2 = 11 CuS + 2 FeS2 in order to correct an erroneous expression in the published record. The correct expression describing the Gibbs free energy of formation (kJ·mol−1) of nukundamite relative...
Watershed scaling effect on base flow nitrate, valley and ridge physiographic province
B.D. Lindsey, W.J. Gburek, G.J. Folmar
2001, Journal of the American Water Resources Association (37) 1103-1117
A study of stream base flow and NO3-N concentration was conducted simultaneously in 51 subwatersheds within the 116-square-kilometer watershed of East Mahantango Creek near Klingerstown, Pennsylvania. The study was designed to test whether measurable results of processes and observations within the smaller watersheds were similar to or transferable to a...
Spatial extent of a hydrothermal system at Kilauea Volcano, Hawaii, determined from array analyses of shallow long-period seismicity 2. Results
J. Almendros, B. Chouet, P. Dawson
2001, Journal of Geophysical Research B: Solid Earth (106) 13581-13597
Array data from a seismic experiment carried out at Kilauea Volcano, Hawaii, in February 1997, are analyzed by the frequency-slowness method. The slowness vectors are determined at each of three small-aperture seismic antennas for the first arrivals of 1129 long-period (LP) events and 147 samples of volcanic tremor. The source...
Arsenic in glacial drift aquifers and the implication for drinking water - Lower Illinois River Basin
K.L. Warner
2001, Ground Water (39) 433-442
The lower Illinois River Basin (LIRB) covers 47,000 km2 of central and western Illinois. In the LIRB, 90% of the ground water supplies are from the deep and shallow glacial drift aquifers. The deep glacial drift aquifer (DGDA) is below 152 m altitude, a sand and gravel deposit that fills the...
Detection of Perkinsus marinus extracellular proteins tissues of the eastern oyster Crassostrea virginica: Potential use diagnostic assays
C. A. Ottinger, T.D. Lewis, D.A. Shapiro, M. Faisal, S.L. Kaattari
2001, Journal of Aquatic Animal Health (13) 133-141
Perkinsus marinus, the cause of serious losses of the eastern oyster Crassostrea virginica, secretes extracellular proteins (ECP) in culture (in vitro) including serine proteases. The production of similar ECP in the eastern oyster (in vivo) and their role in pathogenicity, however, remain to be elucidated. The induction and dissemination of these...
Pesticides and amphibian declines in California, USA
Donald W. Sparling, Gary M. Fellers, Laura McConnell
2001, Environmental Toxicology and Chemistry (20) 1591-1595
Several species of anuran amphibians have undergone drastic population declines in the western United States over the last 10 to 15 years. In California, the most severe declines are in the Sierra Mountains east of the Central Valley and downwind of the intensely agricultural San Joaquin Valley. In contrast, coastal...
Seismic mapping of shallow fault zones in the San Gabriel Mountains from the Los Angeles Region Seismic Experiment, southern California
G. S. Fuis, T. Ryberg, W. J. Lutter, P.L. Ehlig
2001, Journal of Geophysical Research B: Solid Earth (106) 6549-6568
During the Los Angeles Region Seismic Experiment (LARSE), a reflection/refraction survey was conducted along a profile (line 1) extending from Seal Beach, California, northeastward to the Mojave Desert and crossing the Los Angeles and San Gabriel Valley basins and San Gabriel Mountains. In most shot gathers from the southern and...
Droughts, epic droughts and droughty centuries - lessons from a California paleoclimatic record: a PACLIM 2001 meeting report
M. D. Dettinger
2001, Interagency Ecological Program Newsletter (14) 51-53
During the early 1990s (but echoing studies by S.T. Harding at the University of California, from as early as the 1930s), several lines of paleoclimate evidence in and around the Sierra Nevada Range have provided the water community in California with some real horror stories. By studying ancient tree stumps...
Constraints on dike propagation from continuous GPS measurements
P. Segall, Peter Cervelli, S. Owen, M. Lisowski, Asta Mikijus
2001, Journal of Geophysical Research B: Solid Earth (106) 19301-19317
The January 1997 East Rift Zone eruption on Kilauea volcano, Hawaii, occurred within a network of continuous Global Positioning System (GPS) receivers. The GPS measurements reveal the temporal history of deformation during dike intrusion, beginning ∼8 hours prior to the onset of the eruption. The dike volume as a function...
Reconnaissance geology north of the Hoholitna River, Taylor Mountains D-1 1:63,360-scale quadrangle, southwestern Alaska: A section in Geological studies in Alaska by the U.S. Geological Survey, 1999
Robert B. Blodgett, Frederic H. Wilson
2001, Professional Paper 1633
The lower Paleozoic (Silurian and Ordovician) carbonate stratal succession is divided into six unnamed stratigraphic units in the northern part of the Taylor Mountains D-1 1:63,360-scale quadrangle of southwestern Alaska. Several of these units have previously been recognized in the McGrath and Medfra quadrangles to the northeast in strata of...
Simulating the impact of human land use change on forest composition in the Great Plains agroecosystems with the Seedscape model
W.E. Easterling, J.R. Brandle, C.J. Hays, Q. Guo, D.S. Guertin
2001, Ecological Modelling (104) 163-176
The expansion and contraction of marginal cropland in the Great Plains often involves small forested strips of land that provide important ecological benefits. The effect of human disturbance on these forests is not well known. Because of their unique structure such forests are not well-represented by forest gap models. In...
Diet composition and fish consumption of double-crested cormorants from the Little Galloo Island colony of eastern lake Ontario in 2000
J. H. Johnson, R. M. Ross, R.D. McCullough, B. Edmonds
2001, Report, New York State Department of Environmental Conservation 2000 Annual Report; NYSDEC Lake Ontario Annual Report 2000
No abstract available at this time...
Diet composition and fish consumption of double-crested cormorants from the Pigeon and Snake Island colonies of eastern Lake Ontario in 2000
J. H. Johnson, R. M. Ross, R.D. McCullough, B. Edmonds
2001, Report, New York State Department of Environmental Conservation 2000 Annual Report; NYSDEC Lake Ontario Annual Report 2000
No abstract available at this time...
Silent reminders: geologic wonders of the George Washington and Jefferson National Forests
Water Resources Division, U.S. Geological Survey, U.S. Forest Service
2001, Report
The iron industry played a vital role in the industrialization of the United States and in the development of the U.S. economy and society. Much of the early history of the iron industry took place in Virginia. The remains of 11 iron furnaces and nearby mines in the George Washington...
Spatial and temporal variation in diets of Spotted Owls in Washington
E.D. Forsman, I.A. Otto, S.G. Sovern, M. Taylor, D.W. Hays, H. Allen, S.L. Roberts, D.E. Seaman
2001, Journal of Raptor Research (35) 141-150
We studied diets of Northern Spotted Owls (Strix occidentalis caurina) in three different regions of Washington State during 1983-96. Northern flying squirrels (Glaucomys sabrinus) were the most important prey in most areas, comprising 29-54% of prey numbers and 45-59% of prey biomass. Other important prey included snowshoe hares (Lepus americanus),...
Influences of watershed, riparian-corridor, and reach-scale characteristics on aquatic biota in agricultural watersheds
J.S. Stewart, L. Wang, J. Lyons, J.A. Horwatich, R. Bannerman
2001, Journal of the American Water Resources Association (37) 1475-1487
Multivariate analyses and correlations revealed strong relations between watershed and riparian-corridor land cover, and reach-scale habitat versus fish and macroinvertebrate assemblages in 38 warmwater streams in eastern Wisconsin. Watersheds were dominated by agricultural use, and ranged in size from 9 to 71 km2 Watershed land cover was summarized from satellite-derived data...
Crustal deformation rates in Central and Eastern U.S. inferred from GPS
Weijun Gan, W.H. Prescott
2001, Geophysical Research Letters (28) 3733-3736
Analysis of continuous GPS observations between 1996 and 2000 at 62 stations distributed throughout the central and eastern United States suggests that the area is generally stable. Seven of the 62 stations show anomalous velocities, but there is reason to suspect their monument stability. Assuming the remaining 55 stations are...
Serologic survey for canine coronavirus in wolves from Alaska
Randall L. Zarnke, Jim F. Evermann, Jay M. Ver Hoef, Mark E. McNay, Rodney D. Boertje, Craig L. Gardner, Layne G. Adams, Bruce W. Dale, John W. Burch
2001, Journal of Wildlife Diseases (37) 740-745
Wolves (Canis lupus) were captured in three areas of Interior Alaska (USA). Four hundred twenty-five sera were tested for evidence of exposure to canine coronavirus by means of an indirect fluorescent antibody procedure. Serum antibody prevalence averaged 70% (167/240) during the spring collection period and 25% (46/185) during the autumn...
Effects of multi-scale environmental characteristics on agricultural stream biota in eastern Wisconsin
F. A. Fitzpatrick, B. C. Scudder, B. N. Lenz, D. J. Sullivan
2001, Journal of the American Water Resources Association (37) 1489-1507
The U.S. Geological Survey examined 25 agricultural streams in eastern Wisconsin to determine relations between fish, invertebrate, and algal metrics and multiple spatial scales of land cover, geologic setting, hydrologic, aquatic habitat, and water chemistry data. Spearman correlation and redundancy analyses were used to examine relations among biotic metrics and...
