Response of the water level in a well to Earth tides and atmospheric loading under unconfined conditions
Stuart Rojstaczer, Francis S. Riley
1990, Water Resources Research (26) 1803-1817
The response of the water level in a well to Earth tides and atmospheric loading under unconfined conditions can be explained if the water level is controlled by the aquifer response averaged over the saturated depth of the well. Because vertical averaging tends to diminish the influence of the water...
Geological interpretation of combined Seabeam, Gloria and seismic data from Anegada Passage (Virgin Islands, north Caribbean)
I. Jany, Kathryn M. Scanlon, A. Mauffret
1990, Marine Geophysical Research (12) 173-196
The Anegada Passage (sensu lato) includes several basins and ridges from Southeast of Puerto Rico to the corner of the Virgin Islands Platform. Seabeam (Seacarib I) and Gloria long-range sidescan sonar surveys were carried out in this area. These new data allow us to propose an interpretation of the Anegada...
Occurrence, distributions, and transport of herbicides and their degradation products in the lower Mississippi river and its tributaries
W. E. Pereira
1990, ES and T Contents (24) 1400-1406
The Mississippi River and its tributaries drain extensive agricultural regions of the midcontinental United States, where large amounts of herbicides are applied as weed control agents on crops such as corn and soybeans. Studies being conducted by the U.S. Geological Survey along the lower Mississippi River and its major tributaries,...
Oil-shale data, cores, and samples collected by the U.S. geological survey through 1989
John R. Dyni, Frances Gay, Thomas C. Michalski
Gary James H., editor(s)
1990, Conference Paper, Oil Shale Symposium Proceedings
The U.S. Geological Survey has acquired a large collection of geotechnical data, drill cores, and crushed samples of oil shale from the Eocene Green River Formation in Colorado, Wyoming, and Utah. The data include about 250,000 shale-oil analyses from about 600 core holes. Most of the data is from Colorado...
Effect of soil moisture on the sorption of trichloroethene vapor to vadose-zone soil at picatinny arsenal, New Jersey
J. A. Smith, C. T. Chiou, J.A. Kammer, D. E. Kile
1990, Environmental Science & Technology (24) 676-683
This report presents data on the sorption of trichloroethene (TCE) vapor to vadose-zone soil above a contaminated water-table aquifer at Picatinny Arsenal in Morris County, NJ. To assess the impact of moisture on TCE sorption, batch experiments on the sorption of TCE vapor by the field soil were carried out...
Estimating nest success: When Mayfield wins
Douglas H. Johnson, T.L. Shaffer
1990, The Auk (107) 595-600
The Apparent estimator of nest success may be severely biased because unsuccessful nests are less likely to be found than are successful nests. The Mayfield estimator is a preferred alternative. The situation is somewhat different for nests in colonies or on islands because of greater visibility of nests, higher synchrony...
Nutrient reserve dynamics of breeding canvasbacks
Jeb A. Barzen, Jerome R. Serie
1990, The Auk (107) 75-85
We compared nutrients in reproductive and nonreproductive tissues of breeding Canvasbacks (Aythya valisineria) to assess the relative importance of endogenous reserves and exogenous foods. Fat reserves of females increased during rapid follicle growth and varied more widely in size during the early phase of this period. Females began laying with...
Volcanism, isostatic residual gravity and regional tectonic setting of the Cascade volcanic province
R.J. Blakely, R.C. Jachens
1990, Journal of Geophysical Research Solid Earth (95) 19439-19451
A technique to locate automatically boundaries between crustal blocks of disparate densities was applied to upward continued isostatic residual gravity data. The boundary analysis delineates a narrow gravitational trough that extends the length of the Pliocene and Quaternary volcanic arc from Mount Baker in northern Washington to Lassen Peak in...
Organic geochemical studies of the transformation of gymnospermous xylem during peatification and coalification to subbituminous coal
Patrick G. Hatcher, H. E. Lerch III, T.V. Verheyen
1990, International Journal of Coal Geology (16) 193-196
Organic geochemical investigations of peatified and coalified xylem from gymnosperms have provided useful information on the organic transformational processes collectively known as coalification. The combined use of solid-state 13C nuclear magnetic resonance (NMR) and pyrolysis/gas chromatography/mass spectrometry (py/gc/ms) has allowed us to...
Eruptions of Mount St. Helens : Past, present, and future
Robert I. Tilling, Lyn J. Topinka, Donald A. Swanson
1990, Report
Mount St. Helens, located in southwestern Washington about 50 miles northeast of Portland, Oregon, is one of several lofty volcanic peaks that dominate the Cascade Range of the Pacific Northwest; the range extends from Mount Garibaldi in British Columbia, Canada, to Lassen Peak in northern California. Geologists call Mount St....
A history of the Water Resources Division, U.S. Geological Survey; Volume V, July 1, 1947, to April 30, 1957
G. E. Ferguson (compiler)
1990, Report
This volume is the fifth in a series of chronological summaries of the activities and achievements of the Water Resources Division of the U.S. Geological Survey, but it is the first to be published as a public document. As explained in the Preface which follows, the first volume was published...
International position statement and evaluation guidelines for artificial reefs in the Great Lakes
John E. Gannon
1990, Special Publication 90-2
The purpose of this position statement is to guide the evaluation of artificial reef proposals in the Great Lakes so that any reefs built will enhance the fisheries and recreational uses of the lakes without adversely affecting natural resources or impeding other beneficial uses. This position statement sets minimum recommended...
Intermediate-term earthquake prediction
L. Knopoff
1990, Earthquakes & Volcanoes (USGS) (22) 206-208
The problems in predicting earthquakes have been attacked by phenomenological methods from pre-historic times to the present. The associations of presumed precursors with large earthquakes often have been remarked upon. the difficulty in identifying whether such correlations are due to some chance coincidence or are real precursors is that usually...
Effect of pH on the accumulation kinetics of pentachlorophenol in goldfish
G. R. Stehly, W. L. Hayton
1990, Archives of Environmental Contamination and Toxicology (19) 464-470
The kinetics of accumulation of pentachlorophenol (PCP) at various pH values were investigated to explore how pH-dependent accumulation might influence PCP toxicity. Goldfish (Carassius auratus) were exposed to 5 μg PCP/L in a static system buffered with 7.5 mM bicine orN,N-bis(2-hydroxyethyl)-2-aminoethane sulfonic acid (BES) at pH 7.0, 8.0, or 9.0....
Anomalous chloride flux discharges from Yellowstone National Park
I. Friedman, D. R. Norton
1990, Journal of Volcanology and Geothermal Research (42) 225-234
The chloride concentration of some thermal springs in and adjacent to Yellowstone National Park is constant through time although their discharge varies seasonally. As a result the chloride flux from these springs increases during periods of increased discharge. We believe that this is caused by changes in the height of...
Induction of sporulation and the influence of time, temperature, and inoculum size on growth in two species of aquatic fungi (Saprolegniales)
T.A. Bailey, K. Bradford, C.E. Bland
1990, Journal of the Elisha Mitchell Scientific Society (106) 57-63
Because the infective stage of most mycoses of aquatic organisms is the zoospore, we attempted to establish optimum conditions under which zoospores could be produced for use in antifungal testing. Optimum sporulation time, incubation time, inoculum size, and growth temperature were determined for each oftwo saprolegniaceous fungi, Achlya flagellata Coker...
H, O, Sr, Nd, and Pb isotope geochemistry of the Latir volcanic field and cogenetic intrusions, New Mexico, and relations between evolution of a continental magmatic center and modifications of the lithosphere
C.M. Johnson, P. W. Lipman, G.K. Czamanske
1990, Contributions to Mineralogy and Petrology (104) 99-124
Over 200 H, O, Sr, Nd, and Pb isotope analyses, in addition to geologic and petrologic constraints, document the magmatic evolution of the 28.5-19 Ma Latir volcanic field and associated intrusive rocks, which includes multiple stages of crustal assimilation, magma mixing, protracted crystallization, and open- and closed-system evolution in the...
Organochlorines, mercury, and selenium in wintering shorebirds from Washington and California
T. W. Custer, J.P. Myers
1990, California Fish and Game (76) 118-125
Dunlins Caldris alpina , and black-bellied plovers, Pluvialis squatarola , were collected in Washington and California during the winter of 1984-85; long-billed dowitchers, Limnodromus scolopaceus , were collected in California. Pooled breast muscles were analyzed for organochlorines and pooled livers for mercury and selenium. DDE was detected...
Physical factors and their influence on the mussel fauna of a main channel border habitat of the upper Mississippi River
L. E. Holland Bartels
1990, Journal of the North American Benthological Society (9) 327-335
The habitats of mussel species in a portion of the main stem of Navigation Pool 10 of the upper Mississippi River were examined. Population composition, abundance, and sediment and current preferences were measured at 186 sites in the East Channel of the...
Districts for 104th Congress
U.S. Bureau of the Census
1990, Report
This is a polygon coverage of 104th Congressional District boundaries obtained from the U.S. Bureau of the Census. The 103rd Congress was the first Congress that reflected the reapportionment and delineation of congressional districts based on the 1990 census. The next (104th) Congress reflects redelineation of districts that...
Enzyme leaching of surficial geochemical samples for detecting hydromorphic trace-element anomalies associated with precious-metal mineralized bedrock buried beneath glacial overburden in northern Minnesota
Robert J. Clark, A. L. Meier, G. Riddle
Hausen Donald M.Halbe Douglas N.Petersen Erich U.Tafuri William J., editor(s)
1990, Conference Paper
One objective of the International Falls and Roseau, Minnesota, CUSMAP projects was to develop a means of conducting regional-scale geochemical surveys in areas where bedrock is buried beneath complex glacially derived overburden. Partial analysis of B-horizon soils offered hope for detecting subtle hydromorphic trace-element dispersion patterns. An enzyme-based partial leach...
Mercury accumulation in yellow perch in Wisconsin seepage lakes: Relation to lake characteristics
W.G. Cope, J.G. Wiener, R.G. Rada
1990, Environmental Toxicology and Chemistry (9) 931-940
We studied relations between lacustrine characteristics and the total mercury (Hg) content of calendar age-2 yellow perch (Perca flavescens) in 10 seepage lakes in north-central Wisconsin. Mean concentrations and burdens (masses) of Hg in whole perch varied widely among lakes, were negatively correlated with lake pH and were positively correlated...
Occurrence and geochemistry of natural gases, Piceance Basin, northwest Colorado
Ronald C. Johnson, Dudley D. Rice
1990, American Association of Petroleum Geologists Bulletin (74) 805-829
The Piceance basin is a hydrocarbon-rich province that has natural gas production from reservoirs ranging in age from Late Jurassic to Eocene and large undeveloped resources of natural gas in coal beds and tight sandstone reservoirs of Cretaceous age. Gases from all producing intervals are of predominantly thermal origin and...
Notes on sedimentation activities calendar year 1989
U.S. Interagency Advisory Committee on Water Data- Subcommittee on Sedimentation
1990, Report
This report is a digest of information furnished by Federal agencies conducting sedimentation investigations. The decision to publish the report was made in 1946, from a proposal by the Chairman of the Federal Interagency River Basin Committee, Subcommittee on Ground Water. The subcommittee approved the proposal and agreed to issue...
Use of fish corrals in the seine fishery of the Virgin Islands
Cecil A. Jennings
1990, Marine Fisheries Review (52) 18-19
Although selected aspects of the commercial fishery in the Virgin Islands have been documented since the early 1930's, fish corrals and their use have not been described. This account, based on personal observations made during 1985-86, summarizes commercial fishing methods in the Virgin Islands (U.S. and British),...
