Premigrational movements and behavior of young mallards and wood ducks in north-central Minnesota
R.E. Kirby, L.M. Cowardin, J.R. Tester
1989, Fish and Wildlife Research 5
Movements and behavior of 89 young mallards (Anas platyrhynchos) and 48 young wood ducks (Aix sponsa) were monitored on a 932-km2 study area in north-central Minnesota in late summer and fall, 1972-74, with telemetry, visual observation, and aerial surveys. Initial flights of both species were confined to the natal (brood)...
History of acute toxicity tests with fish, 1863-1987
J. B. Hunn
1989, Investigations in Fish Control 98
Abstract not submitted to date...
Evaluation of 215 candidate fungicides for use in fish culture
T.A. Bailey, S.M. Jeffrey
1989, Investigations in Fish Control 99
Abstract not submitted to date...
Gazetteer of the Antarctic
U.S. Board on Geographic Names, Defense Mapping Agency, Water Resources Division, U.S. Geological Survey, National Science Foundation
1989, Report 89-98
This gazetteer lists antarctic names approved by the United States Board on Geographic Names and by the Secretary of the Interior. The Board is the interagency body created by law to standardize and promulgate geographic names for official purposes. As the official standard for names in Antarctica, the gazetteer assures...
Preservation of samples for dissolved mercury
S. N. Hamlin
1989, Water Resources Bulletin (25) 255-262
Water samples for dissolved mercury requires special treatment because of the high chemical mobility and volatility of this element. Widespread use of mercury and its compounds has provided many avenues for contamination of water. Two laboratory tests were done to determine the relative permeabilities of glass and plastic sample bottles...
A random spatial network model based on elementary postulates
Michael R. Karlinger, Brent M. Troutman
1989, Water Resources Research (25) 793-798
A model for generating random spatial networks that is based on elementary postulates comparable to those of the random topology model is proposed. In contrast to the random topology model, this model ascribes a unique spatial specification to generated drainage networks, a distinguishing property of some network growth models. The...
Oligocene caldera complex and calc-alkaline tuffs and lavas of the Indian Peak volcanic field, Nevada and Utah
M. G. Best, E. H. Christiansen, H. R. Blank Jr.
1989, Geological Society of America Bulletin (101) 1076-1090
The Indian Peak volcanic field is representative of the more than 50,000 km3 of ash-flow tuff and tens of calderas in the Great Basin that formed during the Oligocene-early Miocene "ignimbrite flareup" in southwestern North America. The field formed about 32 to 27 Ma in the southeastern Great Basin and consists...
Distillation irrigation: A low-energy process for coupling water purification and drip irrigation
Jim Constantz
1989, Agricultural Water Management (15) 253-264
A method is proposed for combining solar distillation and drip irrigation to simultaneously desalinize water and apply this water to row crops. In this paper, the basic method is illustrated by a simple device constructed primarily of sheets of plastic, which uses solar energy to distill impaired water and apply...
Hydrologic effects of climate change in the Delaware River basin
Gregory J. McCabe, Mark A. Ayers
1989, Water Resources Bulletin (25) 1231-1242
The Thornthwaite water balance and combinations of temperature and precipitation changes representing climate change were used to estimate changes in seasonal soil-moisture and runoff in the Delaware River basin. Winter warming may cause a greater proportion of precipitation in the northern part of the basin to fall as rain, which...
Assessment of the U-Th-Pb system in two Archean metabasalts: Deciphering the complex histories of sulphides and silicates using acid leaching methods
P. E. Smith, R.M. Farquhar, M. Tatsumoto
1989, Geochimica et Cosmochimica Acta (53) 2051-2068
A U-Th-Pb study of Archean metabasalts from two greenstone belts in the eastern Wawa Subprovince of the Canadian shield indicated variable disturbances had occurred in both whole rock systems. Changes in the Pb content appear to predominate over loss of parent elements, and meaningful Pb isochron ages could not be...
The role of catastrophic geomorphic events in central Appalachian landscape evolution
R. B. Jacobson, A.J. Miller, J. A. Smith
1989, Geomorphology (2) 257-284
Catastrophic geomorphic events are taken as those that are large, sudden, and rare on human timescales. In the nonglaciated, low-seismicity central Appalachians, these are dominantly floods and landslides. Evaluation of the role of catastrophic events in landscape evolution includes assessment of...
Adaptive modeling, identification, and control of dynamic structural systems. I. Theory
Erdal Safak
1989, Journal of Engineering Mechanics (115) 2386-2405
A concise review of the fheory of adaptive modeling, identification, and control of dynamic structural systems based on discrete‐time recordings is presented. Adaptive methods have four major advantages over the classical methods: (1) Removal of the noise from the signal is done over the whole frequency band; (2) time‐varying characteristics...
Sr, Nd, Pb Isotope geochemistry and magma evolution of the potassic volcanic rocks, Wudalianchi, Northeast China
W. Junwen, X. Guanghong, M. Tatsumoto, A. R. Basu
1989, Chinese Journal of Geochemistry (8) 322-330
Wudalianchi volcanic rocks are the most typical Cenozoic potassic volcanic rocks in eastern China. Compositional comparisons between whole rocks and glasses of various occurrences indicate that the magma tends to become rich in silica and alkalis as a result of crystal differentiation in the course of evolution. They are unique...
Large-scale magnetic field perturbation arising from the 18 May 1980 eruption from Mount St. Helens, Washington
R.J. Mueller, M.J.S. Johnston
1989, Physics of the Earth and Planetary Interiors (57) 23-31
A traveling magnetic field disturbance generated by the 18 may 1980 eruption of Mount St. Helens at 1532 UT was detected on an 800-km linear array of recording magnetometers installed along the San Andreas fault system in California, from San Francisco to the Salton Sea. Arrival times of the disturbance...
The nature of the pressure-induced metallization of FeO and its implications to the core-mantle boundary
David M. Sherman
1989, Geophysical Research Letters (16) 515-518
The pressure and temperature-induced metallization of FeO discovered by Knittle et al [1986] is here argued to result from a Mott transition associated with increased Fe(3d)-Fe(3d) orbital overlap at high pressures. The metallic bonding in the Fe(3d) t2g band may account for the 4% volume decrease of...
Comparison of seismic waveform inversion results for the rupture history of a finite fault: Application to the 1986 North Palm Springs, California, earthquake
S. Hartzell
1989, Journal of Geophysical Research Solid Earth (94) 7515-7534
The July 8, 1986, North Palm Springs earthquake is used as a basis for comparison of several different approaches to the solution for the rupture history of a finite fault. The inversion of different waveform data is considered; both teleseismic P waveforms and local strong ground motion records. Linear parametrizations for slip...
An empirical Bayes approach to analyzing recurring animal surveys
Douglas H. Johnson
1989, Ecology (70) 945-952
Recurring estimates of the size of animal populations are often required by biologists of wildlife managers. Because of cost or other constraints, estimates frequently lack the accuracy desired but cannot readily be improved by additional sampling. This report proposes a statistical method employing empirical Bayes (EB) estimators as alternatives to...
Late neogene history of the Pacific-Caribbean gateway
G. Keller, C.E. Zenker, S.M. Stone
1989, Journal of South American Earth Sciences (2) 73-108
Planktic foraminiferal provinces of Caribbean DSDP Hole 502A and East Pacific DSDP Hole 503A have been analyzed and compared with benthic and planktic isotope records, carbonate, hiatus events, and sea level changes. Four major events are evident in the closure history of the Pacific-Caribbean gateway, at 6.2, 4.2, 2.4 and...
Statistical frequency analysis of flood records
W. Kirby
1989, Conference Paper
The U.S. Geological Survey, like other Federal agencies, uses Hydrology Subcommittee Bulletin 17 for guidance in statistical frequency analysis of flood records. This paper describes the formal statistical and computational aspects of the Bulletin 17 methodology. The methodology includes provisions for dealing with high and low out-liers, historic peaks, and...
Geological hazards programs and research in the USA
J.R. Filson
1989, Earthquakes & Volcanoes (USGS) (20) 176-189
Geological hazards have been studied for centuries, but government support of research to lessen their effects is relatively new. This article briefly describes government programs and research underway in the USA that are directed towards reducing losses of life and property from earthquakes, volcanic eruptions and landslides. -from Author...
Interaction of fine sediment with alluvial streambeds
Harvey E. Jobson, William P. Carey
1989, Water Resources Research (25) 135-140
More knowledge is needed about the physical processes that control the transport of fine sediment moving over an alluvial bed. The knowledge is needed to design rational sampling and monitoring programs that assess the transport and fate of toxic substances in surface waters because the toxics are often associated with...
The evolution of thermal structure and water chemistry in Lake Nyos
G.W. Kling, M. L. Tuttle, William C. Evans
1989, Journal of Volcanology and Geothermal Research (39) 151-165
We collected a time series of physical and chemical data to gain a better understanding of the dynamics of Lake Nyos. Measurements of water and gas chemistry, and temperature made during January, March, and May 1987 are compared to data taken in September 1986 just after the initial CO2 gas...
Paleogeothermal gradients and timing of oil generation in the Belden Formation, Eagle Basin, northwestern Colorado
V. F. Nuccio, S. Y. Johnson, Christopher J. Schenk
1989, Mountain Geologist (26) 31-41
Paleogeothermal gradients and timing of oil generation for the Lower and Middle Pennsylvanian Belden Formation have been estimated for four locations in the Eagle Basin of northwestern Colorado, by comparing measured vitrinite reflectance with maturity modeling. Two thermal models were made for each location: one assumes a constant paleogeothermal gradient...
Estimating carcass fat and protein in northern pintails during the nonbreeding season
Michael R. Miller
1989, Journal of Wildlife Management (53) 123-129
I used northern pintails (Anas acuta) collected from August through March 1979-82 in the Sacramento Valley, California to derive equations to predict ether-extracted carcass fat, carcass protein, and skeletal lean dry weight. Ether-extracted carcass fat was best predicted by total fat depot weight (wet skin, abdominal fat, and intestinal fat)...
Geochemical variations in a core of hydrogeologic units near Freehold, New Jersey
A. A. Pucci Jr., J. P. Owens
1989, Groundwater (27) 802-812
Solutes were determined for 26 pore-water samples extracted from Tertiary and Cretaceous core material from a 1,320-foot-deep test borehole at Freehold, New Jersey. The cored materials are sediments that form a multilayered aquifer system of seven aquifers and eight confining units in the New Jersey...
