Sand boils without earthquakes
T.L. Holzer, M. M. Clark
1993, Geology (21) 873-876
Sedimentary deformation caused by liquefaction has become a popular means for inferring prehistoric strong earthquakes. In this report, we describe a new mechanism for generating such features in the absence of earthquakes. Sand boils and a 180-m-long sand dike formed in Fremont Valley,...
Mercury, arsenic, antimony, and selenium contents of sediment from the Kuskokwim River, Bethel, Alaska, USA
H. E. Belkin, H.M. Sparck
1993, Environmental Geology (22) 106-110
The Kuskokwim River at Bethel, Alaska, drains a major mercury-antimony metallogenic province in its upper reaches and tributaries. Bethel (population 4000) is situated on the Kuskokwim floodplain and also draws its water supply from wells located in river-deposited sediment. A boring through overbank and floodplain sediment has provided material to...
Effects of climate change on drought risks in the Apalachicola, Chattahoochee, and Flint River basin
Gary D. Tasker
1993, Conference Paper, Proceedings of the Symposium on Engineering Hydrology
Possible effects of climate change on the Apalachicola-Chattahoochee-Flint (ACF) River basin is simulated with a computer model. Model inputs are monthly temperature and precipitation that simulate several possible climate change scenarios. Preliminary results for climate scenarios based on output for three popular general circulation models indicate that lower flows will...
Pharmacokinetics, tissue distribution, and metabolism of nitrofurantoin in the channel catfish (Ictalurus punctatus)
Guy R. Stehly, S. M. Plakas
1993, Aquaculture (113) 1-10
The pharmacokinetics, tissue distribution, and metabolism of the drug nitrofurantoin were examined in the channel catfish (Ictalurus punctatus) after intravascular or oral dosing. Mean plasma concentrations of nitrofurantoin after intravascular administration at 1 and 10 mg kg−1 of body weight were best fit to two- and three-compartment pharmacokinetic models, respectively. Nitrofurantoin...
Burial and temperature history of gas generation from coaly organic matter in the Late Cretaceous Mesaverde Formation and associated rocks in the deeper portions of the Wind River basin
C.E. Barker, B.L. Crysdale
1993, Conference Paper, Jubilee Anniversary Field Conference
No abstract available ...
Application of borehole geophysics in defining the wellhead protection area for a fractured crystalline bedrock aquifer
J.H. Vernon, F.L. Paillet, W.H. Pedler, W.J. Griswold
1993, Log Analyst (34) 41-57
Wellbore geophysical techniques were used to characterize fractures and flow in a bedrock aquifer at a site near Blackwater Brook in Dover, New Hampshire. The primary focus ofthis study was the development of a model to assist in evaluating the area surrounding a planned water supply well where contaminants introduced...
Ancient climate from deuterium content of water in volcanic glass
Irving Friedman, J.D. Gleason, Augusta Warden
1993, Book chapter, Climate change in continental isotopic records
No abstract available ...
Evaluation of subsurface exploration, sampling, and water-quality-analysis methods at an abandoned wood-preserving plant site at Jackson, Tennessee
W. S. Parks, J. K. Carmichael, J. E. Mirecki
1993, Water-Resources Investigations Report 93-4108
Direct Push Technology (DPT) and a modified-auger method of sampling were used at an abandoned wood-preserving plant site at Jackson, Tennessee, to collect lithologic data and ground-water samples in an area known to be affected by a subsurface creosote plume. The groundwater samples were analyzed using (1) gas chromatography with...
Cytonuclear genetic architecture in mosquitofish populations and the possible roles of introgressive hybridization
Kim T. Scribner, John C. Avise
1993, Molecular Ecology (2) 139-149
Spatial genetic structure in populations of mosquitofish (Gambusia) sampled throughout the south-eastern United States was characterized using mitochondrial (mt) DNA and allozyme markers. Both sets of data revealed a pronounced genetic discontinuity (along a broad path extending from south-eastern Mississippi to north-eastern Georgia) that corresponds to a recently recognized distinction...
Geochemistry and Age of the Ontong Java Plateau
J.J. Mahoney, Michael Storey, R.A. Duncan, K.J. Spencer, M. S. Pringle
1993, Book chapter, The Mesozoic Pacific: Geology, tectonics, and volcanism
No abstract available...
Swimming behavior of subyearling Chinook salmon. Annual report 1991
W.R. Nelson, L.K. Freidenburg, D.W. Rondorf
D.W. Rondorf, W.H. Miller, editor(s)
1993, Report, Identification of the spawning, rearing, and migratory requirements of fall Chinook salmon in the Columbia River basin
No abstract available...
Differentiation of bacterial feeding nematodes in soil ecological studies by means of arbitrarily primed PCR
Esther Van Der Knaap, Russell J. Rodriguez, Diana W. Freckman
1993, Soil Biology and Biochemistry (25) 1141-1151
Arbitrarily-primed polymerase chain reaction (ap-PCR) was used to differentiate closely related bacterial-feeding nematodes of the genera: Caenorhabditis, Acrobeloides, Cephalobus and Zeldia. Average percentage similarity of bands generated by ap-PCR with seven different primers between 14 isolates of Caenorhabditis elegans was ⪢ 90%, whereas between C. elegans, C. briggsae and C....
Identification of a whitefly species by genomic and behavioral studies
T.M. Perring, A.D. Cooper, R. J. Rodriguez, C.A. Farrar, T.S. Bellows Jr.
1993, Science (259) 74-77
An introduced whitefly species, responsible for over a half billion dollars in damage to U.S. agricultural production in 1991, is morphologically indistinguishable from Bemisia tabaci (Gennadius). However, with the use of polymerase chain reaction-based DNA differentiation tests, allozymic frequency analyses, crossing experiments, and mating behavior studies, the introduced whitefly is...
Age and growth of juvenile white sturgeon in the Columbia River downstream from McNary Dam
Allen I. Miller, P.J. Anders, M.J. Parsley, C.R. Sprague, J.J. Warren, L.G. Beckman
1993, Report, Status and habitat requirements of white sturgeon populations in the Columbia River downstream from McNary Dam
No abstract available ...
Hybrid zone dynamics are influenced by genotype-specific variation in life-history traits: Experimental evidence from hybridizing Gambusia species
Kim T. Scribner
1993, Evolution (47) 632-646
Results from two experiments are presented that contrast differences in life-history traits and population dynamics between two species of live bearing fishes (Gambusia affinis and G. holbrooki) that hybridize across portions of the southeastern United States. Progeny from parental holbrooki and holbrooki-affinis F1 crosses exhibited larger lengths at birth, at...
Efficacy of L-ascorbyl-2-sulfate as a vitamin C source for rainbow trout
J.E. Halver, S. Felton, A.N. Palmisano
1993, Book chapter, Fish nutrition in practice
No abstract available ...
Hydrogeologic reconnaissance at the Ciba-Geigy Superfund Site, Ocean County, New Jersey
G. J. Barton
1993, Conference Paper, Hydrogeologic investigation, evaluation, and ground water modeling
No abstract available ...
Determination of dissolved-phase pesticides in surface water from the Yakima River basin, Washington, using the Goulden large-sample extractor and gas chromatography/mass spectrometer
Gregory D. Foster, Paul M. Gates, William T. Foreman, Stuart W. McKenzie, Frank A. Rinella
1993, Environmental Science & Technology (27) 1911-1917
Concentrations of pesticides in the dissolved phase of surface water samples from the Yakima River basin, WA, were determined using preconcentration in the Goulden large-sample extractor (GLSE) and gas chromatography/mass spectrometry (GC/MS) analysis. Sample volumes ranging from 10 to 120 L were processed with the GLSE, and the results from...
Diatoms
J.A. Barron
1993, Book chapter, Fossil prokaryotes and protists
No abstract available ...
Great Basin NP and USGS cooperate on a geologic mapping program
Janet L. Brown, Vidal Davila Jr.
1993, Park Science (13) 6-7
The GRBA draft General Management Plan proposes development in several locations in Kious Spring and Lehman Caves 1:24,000 topographic quadrangles, and these proposed developments need geologic evaluation before construction. Brown will act as project manager to coordinate the IA with time frames, budget constraints, and the timely preparation of required...
Active source, high-resolution (NeHT) tomography; velocity and Q
J.R. Evans, J.J. Zucca
1993, Book chapter
No abstract available ...
Evidence for Holocene stability of steep slopes, northern Peruvian Andes, based on soils and radiocarbon dates
D. C. Miller, P. W. Birkeland, D. T. Rodbell
1993, Catena (20) 1-12
Radiocarbon dating and soil relationships indicate that landscapes in highaltitude glaciated valleys of the northern Peruvian Andes have been remarkably stable during the Holocene. Radiocarbon dates show that deglaciation was underway by 12 ka, and that slopes and alluvial fans at the bases of slopes were essentially stabilized by at...
Recent experiences with PROSPECTOR II
R.B. McCammon
1993, Book chapter, Computers in geology: 25 years of progress
No abstract available ...
The effects of toeclipping on sprint performance of the lizard Cnemidophorus sexlineatus
C.K. Dodd Jr.
1993, Journal of Herpetology (27) 209-213
No abstract available....
Evaluation of habitat suitability index models for riverine life stages of American shad, with proposed models for premigratory juveniles
R. M. Ross, T. W. H. Backman, R. M. Bennett
1993, Biological Report 14
No abstract available at this time...
