Sea-floor observations in the tongue of the ocean, Bahamas: An Argo/SeaMARC survey
W. C. Schwab, E. Uchupi, Richard D. Ballard, T.K. Dettweiler
1989, Geo-Marine Letters (9) 171-178
SeaMARC side-scan sonographs and Argo video and photographic data suggest that the recent sedimentary environment of the floor of the Tongue of the Ocean is controlled by an interplay of turbidity current flow from the south, sediment spill-over from the carbonate platform to the east (windward side), and rock falls...
Changes in floral diversities, floral turnover rates, and climates in Campanian and Maastrichtian time, North Slope of Alaska
N. O. Frederiksen
1989, Cretaceous Research (10) 249-266
One-hundred-and-ten angiosperm pollen taxa have been found in upper Campanian to Masstrichtian rocks of the Colville River region, North Slope of Alaska. These are the highest paleolatitude Campanian and Maastrichtian floras known from North America. Total angiosperm pollen diversity rose during the Campanian and declined toward the end of the...
Immunostimulation by levamisole in rainbow trout (Salmo gairdneri) in vivo
D. P. Anderson, A.K. Siwicki, O. W. Dixon, E. F. Lizzio
W. Ahne, E. Kurstak, editor(s)
1989, Book chapter, Viruses of Lower Vertebrates
No abstract available at this time...
The separation of the Hartland Formation and Ravenswood Granodiorite from the Fordham Gneiss at Cameron's Line in the New York City area
C.A. Baskerville, D.G. Mose
1989, Northeastern Geology (11) 22-28
Recent study of the rocks in City Water Tunnel Number 3 between Roosevelt Island and beneath 34th Street and the 63rd Street subway-rail tunnels at 41st Avenue in Long Island City, as well as study of drill core from other sites in western Queens, establishes that this area of New...
Populations, productivity, and feeding habits of seabirds at Cape Thompson, Alaska: Final report
Brian S. Fadely, John F. Piatt, Scott A. Hatch, David G. Roseneau
1989, Report
Investigations of seabird population sizes and breeding biology were conducted at Cape Thompson from 1959 to 1961 during pre-development studies associated with the Atomic through 1982, the Alaskan Program (OCSEAP) supported determine whether changes Energy Commission’s “Project Chariot.” From 1976 Outer Continental Shelf Environmental Assessment efforts to recensus seabirds at...
Depositional aspects and a guide to Paleocene coal-bearing sequences, Powder River Basin
Romeo M. Flores, Peter D. Warwick, Timothy A. Moore
Romeo M. Flores, Peter D. Warwick, Timothy A. Moore, Gary Glass, Archie Smith, Douglas J. Nichols, Jack A. Wolfe, Ronald W. Stanton, Jean Weaver, editor(s)
1989, Conference Paper, Tertiary and Cretaceous coals in the Rocky Mountains region: Casper, Wyoming to Salt Lake City, Utah June 29-July 8, 1989
The Paleocene coal-bearing sequences in the northern Powder River Basin are contained in the Tongue River Member of the Fort Union Formation and include anomalously thick (54 m) subbituminous coals. These thick coals have been the target of exploration and development for the past few decades. For the past decade,...
Studies of geology and hydrology in the Basin and Range Province, southwestern United States, for isolation of high-level radioactive waste: Characterization of the Death Valley region, Nevada and California
Marion S. Bedinger, K. A. Sargent, W. H. Langer
1989, Professional Paper 1370-F
No abstract available....
Triumph of the Voyager mission
R. A. Kerr
1989, Earthquakes & Volcanoes (USGS) (21) 147-149
It had been a long, productive trip. Launched in 1977, the two Voyager spacecraft had visited three giant planets, a dozen major Moons, three ring systems with thousands of rings composed of a myriad of tiny Moonlets. The spacecraft had returned 5 trillion bits of data and over 100,000 photographs....
Tidal currents and anticyclonic motions on two North Pacific seamounts
Amatzia Genin, Marlene A. Noble, P. F. Lonsdale
1989, Deep Sea Research Part A, Oceanographic Research Papers (36) 1803-1815
Near-bottom currents were measured for several days at three sites on the summits of Fieberling Guyot (32°26′N, 127°46′W) and Horizon Guyot (19°15′N, 160°00′W). Three moorings comprised of two current meters were deployed on each summit; two moorings were deployed on opposite sides of the rim of the summit and one...
Gas phase axial dispersion in a packed column oxygen absorber
Barnaby J. Watten, Claude E. Boyd
1989, Aquacultural Engineering (8) 421-434
Gas phase axial dispersion was characterized within an enclosed packed column receiving oxygen and water under counter-current flow conditions. Steady-state gas phase profiles (longitudinal) were measured during a series of 90 column runs in which, at each of three bed depths (0·362, 0·699, and 1·041 m), all combinations of the...
Field test of a bioassay procedure for assessing habitat quality on fish spawning grounds
Bruce A. Manny, David J. Jude, Randy L. Eshenroder
1989, Transactions of the American Fisheries Society (118) 175-182
A bioassay procedure to assess habitat quality was tested on Port Austin reef in southern Lake Huron, a spawning area of lake trout Salvelinus namaycush. In 1986, Plexiglas incubators filled with fertilized lake trout eggs were buried by scuba divers in rock rubble at two sites. The incubators then were attached...
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...
Correlation of Miocene flows of the Columbia River Basalt Group from the central Columbia River Plateau to the coast of Oregon and Washington
Ray E. Wells, R.W. Simpson, R. D. Bentley, Melvin H. Beeson, Margaret T. Mangan, Thomas L. Wright
1989, Book chapter, Volcanism and Tectonism in the Columbia River Flood-Basalt Province, Geological Society of America Special Paper 239
Nearly twenty flows of the Columbia River Basalt Group (CRBG) can be paleomagnetically and chemically correlated westward as far as 500 km from the Columbia Plateau in Washington, through the Columbia Gorge, to the Coast Range of Oregon and Washington. In the Coast Range near Cathlamet, Washington, the CRBG flow...
Stress origins and earthquake potentials in Cascadia
W. Spence
1989, Journal of Geophysical Research Solid Earth (94) 3076-3088
Focal mechanism solutions for shallow earthquakes throughout the Cascadia plate system indicate that the primary regional stress is northerly compression, even though the Juan de Fuca plate generally is thought to be subducting N50°E. This compressional stress is pervasive throughout the Gorda-Juan de Fuca-Explorer plate system and much of the...
Singularity spectrum of intermittent seismic tremor at Kilauea Volcano, Hawaii
H. R. Shaw, B. Chouet
1989, Geophysical Research Letters (16) 195-198
Fractal singularity analysis (FSA) is used to study a 22-year record of deep seismic tremor (30–60 km depth) for regions below Kilauea Volcano on the assumption that magma transport and fracture can be treated as a system of coupled nonlinear oscillators. Tremor episodes range from 1...
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...
Assessing the validity of the channel model of fracture aperture under field conditions
Allen M. Shapiro, James R. Nicholas
1989, Water Resources Research (25) 817-828
In recent investigations of fluid and solute movement in discrete fractures, spatial heterogeneity of the fracture aperture has been conceptualized as a series of noninterconnecting constant aperture flow paths, or channels. Two methods of estimating the distribution of the aperture sizes are presented using information from a single-hole pumping test...
Rates and processes of channel development and recovery following the 1980 eruption of Mount St. Helens, Washington
D. F. Meyer, H. A. Martinson
1989, Hydrological Sciences Journal (34) 115-127
Stream channel development in response to the eruption of Mount St. Helens on 18 May 1980, resulted in some of the largest sediment yields documented anywhere on earth. Development of new channels on the 2.7 km3 debris-avalanche deposit in the North Fork Toutle River caused net erosion of as much as...
ROV dives under Great Lakes ice
S. J. Bolsenga, John E. Gannon, Gregory Kennedy, D. C. North, Charles E. Herdendorf
1989, Cold Regions Science and Technology (16) 89-93
Observations of the underside of ice have a wide variety of applications. Severe under-ice roughness can affect ice movements, rough under-ice surfaces can scour the bottom disturbing biota and man-made structures such as pipelines, and the flow rate of rivers is often affected by under-ice roughness. A few...
Migration and control of purple loosestrife (Lythrum salicaria L.) along highway corridors
Douglas A. Wilcox
1989, Environmental Management (13) 365-370
The east-west density gradient and the pattern and mode of migration of the wetland exotic, purple loosestrife (Lythrum salicaria L.), were assessed in a survey of populations along the New York State Thruway from Albany to Buffalo to determine if the highway corridor contributed to the spread of this...
Behavioural interaction between fish predators and their prey: effects of plant density
Jacqueline F. Savino, Roy A. Stein
1989, Animal Behaviour (37) 311-321
Prey-specific anti-predatory behaviour under different degrees of structural complexity determines foraging success of predators. The behaviour of piscivorous fish (largemouth bass, Micropterus salmoides and northern pike, Esox lucius) and their prey (bluegills, Lepomis macrochirus, and fathead minnows, Pimephales promelas) were quantified in 60-min experiments in laboratory pools (2 multiplied by...
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...
A branched hydrodynamic model of the Sacramento–San Joaquin Delta, California
F. N. Wong, R. T. Cheng
1989, Conference Paper, Proceedings, National Conference on Hydraulic Engineering
No abstract available....
Morphology of Red Creek, Wyoming, an arid-region anastomosing channel system
R.R. Schumann
1989, Earth Surface Processes and Landforms (14) 277-288
The narrow, deep, and sinuous main channel is flanked by anastomosing flood channels, or anabranches. Most anabranches are initiated at meander bends. The primary mechanism of anabranch initiation is avulsion during overbank floods. -from Author...
Begging behavior in budgerigars
J. Stamps, A. Clark, P. Arrowood, Barbara E. Kus
1989, Ethology (81) 177-192
Five hypotheses about relationships between begging rates, feeding rates and other variables were investigated in captive budgerigar nestlings from 23 days post-hatch to fledge date (Period 4). Within families, nestlings that begged more frequently during Period 4 were fed more often by their parents, but there was no indication that...
