Streamflow gain-and-loss and suspended-sediment characteristics of the South Platte River and three irrigation canals near Fort Morgan, Colorado
B. C. Ruddy
1984, Water-Resources Investigations Report 84-4220
A 2-year study during 1982-83 was made to document the streamflow gain-and-loss and suspended sediment characteristics of the South Platte River, Fort Morgan Canal, Upper Platte and Beaver Canal, and the Lower Platte and Beaver Canal near Fort Morgan, Colorado, prior to possible construction of the proposed Narrows Reservoir. Six...
Isotopic evidence for glacial meltwater recharge to the Cambrian-Ordovician aquifer, north-central United States
D. I. Siegel, R.J. Mandle
1984, Quaternary Research (22) 328-335
The chemistry of water in the Cambrian-Ordovician aquifer in six midwestern states has been studied as part of the Northern Midwest Regional Aquifer-System Analysis of the U.S. Geological Survey. Dissolved-solids concentrations generally increase perpendicular to the direction of regional groundwater flow, from less than 400 mg/liter in southeast Minnesota, southwest...
Geochemistry of ferromanganese nodules from DOMES site a, Northern Equatorial Pacific: Multiple diagenetic metal sources in the deep sea
S.E. Calvert, D.Z. Piper
1984, Geochimica et Cosmochimica Acta (48) 1913-1928
The major and minor element composition of ferromanganese nodules from DOMES Site A has been determined by X-ray fluorescence methods. Three phases appear to control the bulk compositions: Mn and Fe oxyhydroxides and aluminosilicates. Relatively wide compositional variations are evident throughout the area. Nodules with high Mn/Fe ratios, high Cu,...
Methods of Fitting a Straight Line to Data: Examples in Water Resources
Robert M. Hirsch, Edward J. Gilroy
1984, Water Resources Bulletin (20) 705-711
Three methods of fitting straight lines to data are described and their purposes are discussed and contrasted in terms of their applicability in various water resources contexts. The three methods are ordinary least squares (OLS), least normal squares (LNS), and the line of organic correlation (OC). In all three methods...
The critical point and two-phase boundary of seawater, 200–500°C
James L. Bischoff, Robert J. Rosenbauer
1984, Earth and Planetary Science Letters (68) 172-180
The two-phase boundary of seawater was determined by isothermal decompression of fully condensed seawater in the range of 200–500°C. The pressure at which phase separation occurred for each isotherm was determined by a comparison of the refractive index of fluid removed from the top and bottom of the reaction vessel....
Catastrophic isotopic modification of rhyolitic magma at times of caldera subsidence, Yellowstone Plateau Volcanic Field
W. Hildreth, R.L. Christiansen, J. R. O’Neil
1984, Journal of Geophysical Research Solid Earth (89) 8339-8369
The Yellowstone Plateau volcanic field has undergone repeated eruption of rhyolitic magma strongly depleted in 18O. Large calderas subsided 2.0, 1.3, and 0.6 Ma ago, on eruption of ash flow sheets that represent at least 2500, 280, and 1000 km3 of zoned magma. More than 60 other rhyolite lavas and tuffs permit...
Turbidity currents generated by Hurricane Iwa
A.T. Dengler, P. Wilde, E.K. Noda, W. R. Normark
1984, Geo-Marine Letters (4) 5-11
Off southwest Oahu, Hawaii, an array of current sensors recorded four successive episodes of downslope displacement associated with high-speed near-bottom currents of up to 200 cm/s and elevated water temperatures. These episodes coincided with the maximum storm effects of hurricane Iwa. Sensors from four moorings recorded increases in depth of...
Transport and distribution of nutrients in the Loxahatchee River estuary, Southeastern Florida, 1979 to 1981
B. F. McPherson, W. H. Sonntag
1984, Water Resources Bulletin (20) 27-34
[No abstract available]...
Arsenic and antimony in geothermal waters of Yellowstone National Park, Wyoming, USA
R. E. Stauffer, J. M. Thompson
1984, Geochimica et Cosmochimica Acta (48) 2547-2561
A total of 268 thermal spring samples were analyzed for total soluble As using reduced molybdenum-blue; 27 of these samples were also analyzed for total Sb using flame atomic absorption spectrometry. At Yellowstone the ClAs">ClAs atomic ratio is nearly constant among neutral-alkaline springs with Cl >...
Volatiles of Mount St. Helens and their origins
I. Barnes
1984, Journal of Volcanology and Geothermal Research (22) 133-146
Analyses have been made of gases in clouds apparently emanating from Mount St. Helens. Despite appearances, most of the water in these clouds does not issue from the volcano. Even directly above a large fumarole ??D and ?? 18O data indicate that only half the water can come from the...
Effect of anisotropy and groundwater system geometry on seepage through lakebeds. 2. Numerical simulation analysis
T. C. Winter, H.O. Pfannkuch
1984, Journal of Hydrology (75) 239-253
The interaction of lakes and groundwater is controlled partly by the geologic framework through which the water flows. Two interrelated geometric factors of the groundwater system that affect flow are overall geometry of the system, and anisotropy of the porous media within the system. Numerical simulation analysis was made for...
The impact of uncertainties in hydrologic measurement on phosphorus budgets and empirical models for two Colorado reservoirs.
James W. LaBaugh, T. C. Winter
1984, Limnology and Oceanography (29) 322-339
Water budgets and related chemical budgets of aquatic ecosystems commonly are interpreted without reference to uncertainties resulting from errors of measurement. The importance of such uncertainties in the use and interpretation of the phosphorus budgets of two Colorado reservoirs was determined....
Analytical results and sample locality map of stream-sediment, heavy-mineral-concentrate, rock, and water samples from the Chemehuevi Mountains Wilderness Study Area (CDCA-310), San Bernardino County, California
R.T. Hopkins, J. P. Fox, J.C. Antweiler, W. L. Campbell
1984, Open-File Report 84-261
No abstract available....
Field and laboratory analyses of water from the Columbia aquifer in Eastern Maryland
L. J. Bachman
1984, Groundwater (22) 460-469
Field and laboratory analyses of pH, alkalinity, and specific conductance from water samples collected from the Columbia aquifer on the Delmarva Peninsula in eastern Maryland were compared to determine if laboratory analyses could be used for making regional water-quality interpretations.On the basis of 170 field...
Isolation of organic acids from large volumes of water by adsorption chromatography
George R. Aiken
1984, Book, National Meeting - American Chemical Society, Division of Environmental Chemistry
The concentrations of dissolved organic carbon from most natural waters ranges from 1 to 20 milligrams carbon per liter, of which approximately 75 percent are organic acids. These acids can be chromatographically fractionated into hydrophobic organic acids, such as humic substances, and hydrophilic organic acids. To effectively study any of...
Ferromanganese micronodules from the surficial sediments of Georges Bank
L.J. Poppe, J.A. Commeau, F.T. Manheim, P. J. Aruscavage
1984, Journal of Marine Research (42) 463-472
Ferromanganese micronodules have been found on Georges Bank, off the U.S. northeast coast, distributed throughout the surficial sediments within an area about 125 km long and at least 12 km wide. These coarse, sand-sized concretions have precipitated from metal-rich interstitial waters and contain many of the textural and structural features...
Mineral resources of the Atlantic Exclusive Economic Zone
William P. Dillon
1984, Conference Paper, Oceans Conference Record (IEEE)
Potential mineral resources of the Atlantic Exclusive Economic Zone (including the Gulf of Mexico and US Caribbean areas) include petroleum, sand and gravel, phosphorite, placer deposits of heavy mineral sands, ferromanganese nodules, and fresh water. Although major efforts have been made to search for petroleum, the oil and gas resources...
Glacier mass balance and runoff research in the U.S.A.
L.R. Mayo
1984, Geografiska Annaler, Series A (66 A) 215-227
Research on glacier mass balance began in the U.S.A. about 50 years ago. More complete studies of climate, snow and ice balance, and the hydrology of glaciers were initiated for the IGY in 1957 and the IHD in 1966. Investigations included the magnitude and geographic distribution of normal...
Concentrations and isotope ratios of carbon, nitrogen and sulfur in ocean-floor basalts
H. Sakai, D.J.D. Marais, A. Ueda, J.G. Moore
1984, Geochimica et Cosmochimica Acta (48) 2433-2441
Fresh submarine basalt glasses from Galapagos Ridge, FAMOUS area, Cayman Trough and Kilauea east rift contain 22 to 160 ppm carbon and 0.3 to 2.8 ppm nitrogen, respectively, as the sums of dissolved species and vesicle-filling gases (CO2 and N2). The large range of variation in carbon content is due to...
Publications of the Geological Survey, 1983
Water Resources Division, U.S. Geological Survey
1984, Report
This catalog is a list of (1) books and maps that were published during 1983, and (2) articles by Geological Survey personnel in non-Geological Survey journals and books that came to our attention in 1983; it supplements the permanent catalogs "Publications of the Geological Survey, 1879-1961" and "Publications of the...
CHARACTERIZATION OF SECONDARY ALTERATION IN THE COLUMBIA RIVER BASALT BY BACKSCATTERED ELECTRON IMAGING AND ENERGY-DISPERSIVE X-RAY SPECTROSCOPY.
P.P. Hearn, W.C. Steinkampf, Z. A. Brown
Romig Alton D.Jr.Goldstein Joseph I., editor(s)
1984, Conference Paper, Proceedings, Annual Conference - Microbeam Analysis Society
The thick sequences of flood basalts which underlie the Columbia River basin are important aquifiers, providing water for both agricultural and domestic use. Secondary alteration in these rocks occurs primarily as coatings or fillings in fractures and vesicles; alteration is generally believed to have occurred at low temperatures ( less...
Pima County water hyacinth pilot treatment plant; a preliminary assessment for Pima County Wastewater Management Department. Task 1 Report
P. Warshall, M. Jennings, B. Cunningham
1984, Report
No abstract available at this time...
A survey of North American migratory waterfowl for duck plague (duck virus enteritis) virus
Christopher J. Brand, Douglas E. Docherty
1984, Journal of Wildlife Diseases (20) 261-266
A survey of migratory waterfowl for duck plague (DP) virus was conducted in the Mississippi and Central flyways during 1982 and in the Atlantic and Pacific flyways during 1983. Cloacal and pharyngeal swabs were collected from 3,169 migratory waterfowl in these four flyways, principally mallards (Anas platyrhynchos L.), black ducks (Anas...
Composition and energy contents of mature inshore spawning capelin (Mallotus villosus): Implications for seabird predators
W.A. Montevecchi, John F. Piatt
1984, Comparative Biochemistry and Physiology, Part A: Molecular & Integrative Physiology (78) 15-20
1. Lipid levels of capelin are highest in late fall and lowest during the summer spawning season; protein levels are constant at 13–14% body wt throughout the year.2. Ovid females contained significantly more lipid and protein and less water and had higher energy densities than males and spent...
Life cycle of a mayfly Hexagenia limbata in the St. Marys River between Lakes Superior and Huron
Donald W. Schloesser, Jarl K. Hiltunen
1984, Journal of Great Lakes Research (10) 435-439
Length-frequency distribution curves of Hexagenia limbata nymphs collected in May, August, and October 1974 and May 1975 in the St. Marys River between Lakes Superior and Huron were bimodal for each sampling period. These curves, combined with interpretation of nymphal emergence period and mean surface water temperatures, indicate that the population of Hexagenia nymphs...
