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Page 1873, results 46801 - 46825

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Circular convection during subsurface injection of liquid waste, St. Petersburg, Florida
John J. Hickey
1989, Water Resources Research (25) 1481-1494
Injection of liquid waste into a highly transmissive, saltwater-bearing, fractured dolomite underlying the city of St. Petersburg, Florida, provided an opportunity to study density-dependent flow associated with two miscible and density-different liquids. The injection zone was 98 m thick with a radial hydraulic conductivity of 762 m/d and a vertical...
Accounting for intracell flow in models with emphasis on water table recharge and stream-aquifer interaction: 1. Problems and concepts
Donald G. Jorgensen, Donald C. Signor, Jeffrey L. Imes
1989, Water Resources Research (25) 669-676
Intracell flow is important in modeling cells that contain both sources and sinks. Special attention is needed if recharge through the water table is a source. One method of modeling multiple sources and sinks is to determine the net recharge per cell. For example, for a model cell containing both...
Assessment of lake trout spawning habitat quality in central Lake Huron by submarine
Bruce A. Manny, Thomas A. Edsall
1989, Journal of Great Lakes Research (15) 164-173
Interstitial water quality was measured using a submersible at seven locations on Six Fathom Bank. Historically, the bank was an important lake trout spawning ground. It is currently the focus of coordinated, interagency efforts to rehabilitate lake trout in Lake Huron. Water quality, evaluated from measurements of...
Multiple hydrothermal and metamorphic events in the Kidd Creek volcanogenic massive sulphide deposit, Timmins, Ontario: evidence from tourmalines and chlorites
J. F. Slack, P.R. Coad
1989, Canadian Journal of Earth Sciences (26) 694-715
Tourmaline and chlorite are the principal ferromagnesian silicate minerals in the Kidd Creek massive sulphide deposit. Tourmaline is most common in sphalerite-rich peripheral margins of the chalcopyrite stringer zone. Within the north orebody, samples typically contain <1% tourmaline, but small areas (hand-specimen scale) may have 10–20%. Chlorite is more widely...
The relationship of catchment topography and soil hydraulic characteristics to lake alkalinity in the northeastern United States
D.M. Wolock, G.M. Hornberger, K.J. Beven, W.G. Campbell
1989, Water Resources Research (25) 829-837
We undertook the task of determining whether base flow alkalinity of surface waters in the northeastern United States is related to indices of soil contact time and flow path partitioning that are derived from topographic and soils information. The influence of topography and soils on catchment hydrology has been incorporated...
Lower Cretaceous bentonitic strata in southwestern Montana assigned to Vaughn Member of Mowry Shale (East) and of Blackleaf Formation (West)
R. G. Tysdal, T. S. Dyman, D. J. Nichols
1989, Mountain Geologist (26) 53-61
The Vaughn Member, newly assigned to the Mowry Shale in this report, comprises strata that crop out in the Greenhorn, Gravelly, Madison, and Gallatin ranges, and the Centennial and Beartooth mountains of southwestern Montana. Herein the member is correlated with the Vaughn Member of the Blackleaf Formation, which crops out...
Simulation of ground-water flow in coastal southern New Jersey
Frederick J. Spitz, Thomas H. Barringer
1989, Conference Paper, Coastal Zone: Proceedings of the Symposium on Coastal and Ocean Management
An increasing trend of shallow ground-water withdrawal over the first part of this century on the Cape May Peninsula of New Jersey has resulted in the intrusion of saltwater into the aquifers that comprise the shallow ground-water system. The U.S. Geological Survey has developed a mathematical model of the flow...
The Relief Canyon gold deposit, Nevada: A mineralized solution breccia
A. R. Wallace
1989, Economic Geology (84) 279-290
The Relief Canyon gold deposit in the Humboldt Range of western Nevada is a low-grade, high-tonnage orebody of Tertiary or younger age. The host rocks include limestones of the Triassic Cane Spring Formation, which are overlain by shales of the Triassic Grass Valley Formation. The rocks were folded and metamorphosed...
Retention and transport of nutrients in a third-order stream: Channel processes
Frank J. Triska, Vance C. Kennedy, Ronald J. Avanzino, Gary W. Zellweger, Kenneth E. Bencala
1989, Ecology (70) 1877-1892
Chloride was injected as a conservative tracer with nitrate to examine nitrate retention (storage plus biotic uptake) and transport in a 327—m reach of a third—order stream draining a forested basin in northwestern California. Prior to injections, diel patterns of nutrient concentrations were measured under background conditions. Nitrate concentration of...
Geochemical controls on vanadium accumulation in fossil fuels
G. N. Breit, R. B. Wanty
1989, Conference Paper, Preprints Symposia
High vanadium contents in petroleum and other fossil fuels have been attributed to organic-matter type, organisms, volcanic emanations, diffusion of sea water, and epigenetic enrichment. However, these factors are inadequate to account for the high abundance of vanadium in some fossil fuels and the paucity in others. By examining vanadium...
Non-energy resources, Connecticut and Rhode Island coastal waters
N.F. Neff, R. S. Lewis
1989, Marine Geology (90) 125-130
Cores collected from Long Island Sound, Connecticut, were used to establish control on the geologic framework of the area. Lithologic and stratigraphic analyses verified the presence of the following units: (1) Cretaceous coastal plain, (2) Pleistocene glacial till, (3) late Pleistocene...
Quantitative dye-tracing of karst ground-water flow
James Smoot, Donald S. Mull, Timothy Liebermann
1989, Conference Paper
Analysis of the results of repeat quantitative dye traces between a sinkhole and a spring used for public water supply were used to describe predictive relations between discharge, mean travel time, apparent ground-water flow velocity and solute transport characteristics. Normalized peak concentration, mean travel time, and standard deviation of travel...
Oxidation of aromatic contaminants coupled to microbial iron reduction
Derek R. Lovley, M.J. Baedecker, D.J. Lonergan, I.M. Cozzarelli, Elizabeth J.P. Phillips, D. I. Siegel
1989, Nature (339) 297-300
THE contamination of sub-surface water supplies with aromatic compounds is a significant environmental concern1,2. As these contaminated sub-surface environments are generally anaerobic, the microbial oxidation of aromatic compounds coupled to nitrate reduction, sulphate reduction and methane production has been studied intensively1-7. In addition, geochemical evidence suggests that Fe(III) can be...
Estimating constituent loads
Timothy A. Cohn, Lewis L. DeLong, Edward J. Gilroy, Robert M. Hirsch, Deborah K. Wells
1989, Water Resources Research (25) 937-942
Several recent articles have called attention to the problem of retransformation bias, which can arise when log linear regression models are used to estimate sediment or other constituent loads. In some cases the bias can lead to underestimation of constituent loads by as much as 50%, and several procedures have...
Hydraulic analysis of the Schoharie Creek bridge
David C. Froehlich, Roy E. Trent
1989, Conference Paper
Ten people died on April 5, 1987 as a result of the collapse of two spans of a New York State Thruway bridge into the floodwaters of Schoharie Creek. The cause of the bridge failure was determined to be scour of bed material from under the foundations of piers supporting...
Performance and utility of satellite telemetry during field studies of free-ranging polar bears in Alaska
Gerald W. Garner, Steven C. Amstrup, David C. Douglas, Craig L. Gardner
Charles J. Amlaner Jr., editor(s)
1989, Conference Paper, Biotelemetry X: Proceedings of the 10th international symposium on biotelemetry
Satellite telemetry technology has been used during field studies of polar bears in Alaska since 1985. A total of 109 Platform Transmitter Terminals (PTT) have been deployed on free-ranging female polar bears that seasonally inhabit waters adjacent to the Alaskan coast. The PTTs transmitted locational and sensor data to TIROS-N...
Artificial recharge of groundwater and its role in water management
J. O. Kimrey
1989, Desalination (72) 135-147
This paper summarizes and discusses the various aspects and methods of artificial recharge with particular emphasis on its uses and potential role in water management in the Arabian Gulf region.Artificial recharge occurs when man's activities cause more water to enter an...
Baleen whales and their prey in a coastal environment
John F. Piatt, David A. Methven, Alan E. Burger, Ruth L. McLagan, Vicki Mercer, Elizabeth Creelman
1989, Canadian Journal of Zoology (67) 1523-30
Patterns of abundance of humpback (Megaptera novaeangliae), fin (Balaenoptera physalus), and minke (Balaenoptera acutorostrata) whales are described in relation to the abundance of their primary prey, capelin (Mallotus villosus), during 1982–1985 at Witless Bay, Newfoundland. The abundance ratio of the three whale species was 10:1:3.5, respectively. Abundance of all whale...
Effect of rearing density on poststocking survival of lake trout in Lake Ontario
Joseph H. Elrod, David E. Ostergaard, Clifford P. Schneider
1989, Progressive Fish-Culturist (51) 189-193
Six paired lots of yearling lake trout (Salvelinus namaycush) reared at densities of 41,000 and 51,000 fish per raceway during their last 9 months in the hatchery were stocked in Lake Ontario. Poststocking survival of the high-density (HD) and low-density (LD) fish was not different for the 1982 year-class. However,...
Metabolism of pentachlorophenol by fish
G. R. Stehly, W. L. Hayton
1989, Xenobiotica (19) 75-81
Interspecies variability in the metabolism of pentachlorophenol (PCP) was investigated by exposing rainbow trout, fathead minnows, sheepshead minnow, firemouth, and goldfish to water-borne super(14)C-PCP for 64 h. The amounts of metabolites in bile and exposure water were species-dependent; all of the metabolites excreted into the water...
Water resources data for South Carolina, water year 1988
C.S. Bennett, R.D. Hayes, K.H. Jones, T.W. Cooney
1989, Water Data Report SC-88-1
Water resources data for the 1988 water year for South Carolina consist of records of stage, discharge, and water quality of streams; stage and contents of lakes and reservoirs; and levels of ground-water wells. This volume contains records for water discharge at 104 gaging stations, stage only at 18 gaging...
Seismicity of Alaska 1786-1987
1989, Open-File Report 89-98
This map displays selected epicenters for earthquakes that occurred between 1786 and 1987. Although accurate magnitude values have not been determined for many of the pre-instrumental earthquakes, it is believed that all of the earthquakes presented on this map have magnitudes of 5.0 or greater.Symbols are plotted at epicentral locations,...