Population differentiation along a flood frequency gradient: Physiological adaptations to flooding in Nyssa sylvatica
Jon E. Keeley
1979, Ecological Monographs (49) 89-108
Throughout the southeastern United States the hardwood Nyssa sylvatica (sensu lato) is distributed along a soil moisture gradient from upland sites, which are never flooded, to floodplains, which are periodically flooded and drained to permanently flooded swamps. Population differentiation with respect to flood tolerance and related physiological attributes was investigated...
Aquifer coefficients determined from multiple well effects, Fernandina Beach, Florida
C.B. Bentley
1979, Groundwater (17) 525-531
On September 30, 1977, a large industrial plant in Fernandina Beach, Florida, shut down six artesian wells that had been pumping continuously for several weeks from the Floridan aquifer. Two wells continued pumping until November 20, 1977, at which time the shutdown wells were restarted....
Preliminary isotopic studies of fluids from the Cerro Prieto geothermal field
A.H. Truesdell, R. O. Rye, F. J. Pearson Jr., E.R. Olson, N.L. Nehring, J. F. Whelan, M.A. Huebner, T.B. Coplen
1979, Geothermics (8) 223-229
Preliminary isotopic studies of Cerro Prieto geothermal fluids and earlier studies of Mexicali Valley ground waters suggest local recharge of the geothermal system from the area immediately to the west. Oxygen isotope exchange of water with reservoir rock minerals at temperatures increasing with depth has produced fluids with oxygen-18 contents...
Methods of ultimate carbonaceous BOD determination
J. K. Stamer, S. W. McKenzie, R.N. Cherry
1979, Journal of the Water Pollution Control Federation (51) 918-925
Studies were conducted to provide an accurate and practical technique for determining the concentration of ultimate carbonaceous biochemical oxygen demand and the rate at which this demand is exerted. The three methods evaluated were carbon derived, nitrification adjusted, and nitrification inhibited. The studies indicate that comparable concentrations and reaction rates...
Digital model of the Bayou Bartholomew alluvial aquifer stream system, Arkansas
J.E. Reed, Matthew E. Broom
1979, Open-File Report 79-685
A digital model of the Bayou Bartholomew aquifer-stream system in Arkansas was calibrated for the purpose of predicting hydrologic responses to stresses of water development. The simulated-time span for model calibration was from 1953 to 1970, during which time the system was stressed largely by ground- and surface-water diversions for...
Low temperature basalt alteration by sea water: an experimental study at 70°C and 150°C
W.E. Seyfried Jr., J. L. Bischoff
1979, Geochimica et Cosmochimica Acta (43) 1937-1947
Basaltic glass and diabase were reacted with seawater at 70°C at 1 bar and 150°C at 500 bars to determine fluid composition and alteration mineralogy. All experiments were performed at a water/ rock mass ratio of 10. The changes in seawater chemistry depended on temperature and crystallinity of the...
Methanogenic activity in plankton samples and fish intestines A mechanism for in situ methanogenesis in oceanic surface waters
Ronald S. Oremland
1979, Limnology and Oceanography (24) 1136-1141
When plankton samples were incubated anaerobically with a cysteine-sulfide reducing agent, pronounced methane evolution occurred. This activity was inhibited by air, CHCl3, C2H2, and 2-bromoethanesulfonic acid. Adding [14C]CO32− resulted in accumulation of [14C]CH4. Portions of the digestive tracts of three fishes were incubated in methanogenic media, and two of the samples...
Arsenic and fluoride in the upper madison river system: Firehole and gibbon rivers and their tributaries, yellowstone national park, wyoming, and southeast montana
J. M. Thompson
1979, Environmental Geology (3) 13-21
Chemical analyses of 21 water samples from the Firehole and Gibbon Rivers, which combine to form the Madison River, gave arsenic and fluoride values above the Environmental Protection Agency Interim Primary Drinking Water maximum contaminant levels (0.05 mg/l arsenic and 2.0 mg/l fluoride). On 18 October, 1975, during a period...
Water-quality records for selected reservoirs in Texas, 1974-75 water years
Jack Rawson, E. S. Chitwood
1979, Texas Department of Water Resources Report 232
No abstract available....
Simulation of wetlands forest vegetation dynamics
Richard L. Phipps
1979, Ecological Modelling (7) 257-288
A computer program, SWAMP, was designed to simulate the effects of flood frequency and depth to water table on southern wetlands forest vegetation dynamics. By incorporating these hydrologic characteristics into the model, forest vegetation and vegetation dynamics can be simulated. The model, based on data from the White River National...
Martian channels and the search for extraterrestrial life
H. Masursky, M.E. Strobell, A.L. Dial
1979, Journal of Molecular Evolution (14) 39-55
The origin of the channels on Mars has been a subject of intense interest since they were first recognized on early Mariner 9 images (Driscoll, 1972; Masursky, 1973). Their presence on the planet, and their striking resemblance to terrestrial flood channels related to glacial outbursts or to dendritic river systems...
Beach-cusp formation
A. H. Sallenger Jr.
1979, Marine Geology (29) 23-37
Field experiments on beach-cusp formation were undertaken to document how the cuspate form develops and to test the edge-wave hypothesis on the uniform spacing of cusps. These involved observations of cusps forming from an initially plane foreshore. The cuspate form was observed to be a product of swash modification of an...
Azomethine H colorimetric method for determining dissolved boron in water
R.R. Spencer, D. E. Erdmann
1979, Environmental Science & Technology (13) 954-956
No abstract available....
Recent developments in uranium exploration using the U.S. Geological Survey's mobile helium detector
G.M. Reimer, E.H. Denton, I. Friedman, J. K. Otton
1979, Journal of Geochemical Exploration (11) 1-12
A mobile mass spectrometer to measure He concentrations has been developed by the U.S. Geological Survey. This instrument has been tested in areas of known uranium deposits, and He anomalies have been found in both soil gas and water. A gas sample is collected in a hypodermic syringe, injected into...
Notes on sedimentation activities calendar year 1977
U.S. Interagency Advisory Committee on Water Data- Subcommittee on Sedimentation
1979, Report
The need for disseminating current information on activities in the field of sedimentation was proposed by the Chairman of the Federal Interagency River Basin Committee's Subcommittee on Sedimentation shortly after the subcommittee was formed in May 1946. At the fifth meeting of the subcommittee on September 17, 1946, the members...
Mathematics and mallard management
L.M. Cowardin, Douglas H. Johnson
1979, Journal of Wildlife Management (43) 18-35
Waterfowl managers can effectively use simple population models to aid in making management decisions. We present a basic model of the change in population size as related to survival and recruitment. A management technique designed to increase survival of mallards (Anas platyrhynchos) by limiting harvest on the Chippewa National Forest,...
The geochemistry of the Fox Hills-Basal Hell Creek Aquifer in southwestern North Dakota and northwestern South Dakota
Donald C. Thorstenson, Donald W. Fisher, Mack G. Croft
1979, Water Resources Research (15) 1479-1498
The Late Cretaceous Fox Hills Formation and the basal portion of the overlying Hell Creek Formation constitute an important aquifer in the Fort Union coal region. Throughout most of southwestern North Dakota and northwestern South Dakota the aquifer is at depths ranging from 1000 to 2000 ft, except for exposures...
Potentials and limits for the use of ozone as a fish disease control agent
Gary A. Wedemeyer, Nancy C. Nelson, T. Yasutake
1979, Ozone: Science and Engineering (1) 295-318
Ozone and chlorine inactivation curves were determined in three types of freshwater at 20 C for the destruction of the fish pathogens Aeromonas salmonicida the etiologic agent of furunculosis, and Yersinia ruckeri the enteric redmouth bacterium (ERM). Ozone and chlorine inactivation curves were also obtained in the same water types at 10 C for...
Aeromagnetic map of the Wallace-Flathead area, Montana
Water Resources Division, U.S. Geological Survey
1979, Open-File Report 79-713
No abstract available....
Space, time, and the third dimension (model error)
Marshall E. Moss
1979, Water Resources Research (15) 1797-1800
The space-time tradeoff of hydrologic data collection (the ability to substitute spatial coverage for temporal extension of records or vice versa) is controlled jointly by the statistical properties of the phenomena that are being measured and by the model that is used to meld the information sources. The control exerted...
Lignite drilling during 1978 in western North Dakota: Adams, Billings, Bowman, Burke, Golden Valley, Hettinger, McKenzie, McLean, and Slope Counties
Water Resources Division, U.S. Geological Survey, North Dakota Geological Survey
1979, Open-File Report 79-1051
No abstract available....
Water resources data for Maryland and Delaware, water year 1977
Water Resources Division, U.S. Geological Survey
1978, Water Data Report MD-DE-77-1
No abstract available. ...
Numerical simulation of steady state three-dimensional groundwater flow near lakes
Thomas C. Winter
1978, Water Resources Research (14) 245-254
Numerical simulation of three-dimensional groundwater flow near lakes shows that the continuity of the boundary encompassing the local groundwater flow system associated with a lake is the key to understanding the interaction of a lake with the groundwater system. The continuity of the boundary can be determined by the presence...
Developing a state water plan: Ground-water conditions in Utah, spring of 1978
Joseph S. Gates, W.N. Jibson, L. R. Herbert, R. W. Mower, A. C. Razem, R.M. Cordova, V.L. Jensen, M. D. ReMillard, D. C. Emett, C.T. Sumison, P.A. Carroll, M.J. DeGrand, G. W. Sandberg
1978, Cooperative Investigations Report 17
This report is the fifteenth in a series of annual reports that describe ground-water conditions in Utah. Reports in this series, prepared cooperatively by the U.S. Geological Survey and the Utah Division of Water Resources, provide data to enable interested parties to keep abreast of changing ground-water conditions.This report, like...
Ground-water resources and geology of Columbia County, Wisconsin
C.A. Harr, L. C. Trotta, Ronald G. Borman
1978, Wisconsin Geological & Natural History Survey Information Circular 37
The increasing need for water of good Quality in Columbia County, caused by a steadily increasing population, can be met from the sand-and-gravel and sandstone aquifers. As much as 15 gallons per minute can be obtained from wells almost everywhere. Yields of more than 1,000 gallons per minute are available...
