Malachite green: its toxicity to aquatic organisms, persistence, and removal with activated carbon
T.D. Bills, J. H. Chandler Jr., L. L. Marking
1977, Investigations in Fish Control 75
Abstract not submitted to date...
Analysis and machine mapping of the distribution of band recoveries
L.M. Cowardin
1977, Special Scientific Report - Wildlife 198
A method of calculating distance and bearing from banding site to recovery location based on the solution of a spherical triangle is presented. X and Y distances on an ordinate grid were applied to computer plotting of recoveries on a map. The advantages and disadvantages of tables of recoveries by...
Some Bayesian statistical techniques useful in estimating frequency and density
Douglas H. Johnson
1977, Special Scientific Report - Wildlife 203
This paper presents some elementary applications of Bayesian statistics to problems faced by wildlife biologists. Bayesian confidence limits for frequency of occurrence are shown to be generally superior to classical confidence limits. Population density can be estimated from frequency data if the species is sparsely distributed relative to the size...
Method for assessing additive toxicity of chemical mixtures
L. L. Marking
1977, Special Technical Publication 634
Abstract not submitted to date...
Formalin: its toxicity to nontarget aquatic organisms, persistence, and counteraction
T.D. Bills, L. L. Marking, J. H. Chandler Jr.
1977, Investigations in Fish Control 73
Abstract not submitted to date...
Square wave voltammetry at the dropping mercury electrode: Theory
J. H. Christie, J.A. Turner, R. A. Osteryoung
1977, Analytical Chemistry (49) 1899-1903
The theoretical aspects of square wave voltammetry at the dropping mercury electrode are presented. The technique involves scanning the entire potential range of interest on a single drop of a DME. Asymmetries in the waveform as well as variations in current measurement parameters are discussed. Indications are that previous uses...
Mechanical and hydraulic properties of rocks related to induced seismicity
P. A. Witherspoon, J.E. Gale
1977, Engineering Geology (11) 23-55
Witherspoon, P.A. and Gale, J.E., 1977. Mechanical and hydraulic properties of rocks related to induced seismicity. Eng. Geol., 11(1): 23-55. The mechanical and hydraulic properties of fractured rocks are considered with regard to the role they play in induced seismicity. In many cases, the mechanical properties of fractures determine the...
A method and fortran program for the computerized reconstruction of three-dimensional objects from serial sections
J.C. Tipper
1977, Computers & Geosciences (3) 579-599
Three-dimensional objects can be reconstructed automatically from sets of serial sections by using a suitable algorithm. For two-phase systems it is sufficient to match phase boundary loops between adjacent sections. When all possible neighboring pairs of sections have been compared in this manner, the bounding surfaces of the object are...
Biota of Lake Mead National Recreation Area, annotated checklist and bibliography, preliminary project report #1
W.E. Niles, C. L. Douglas
1977, Technical Report CPSU/UNLV 008/06
No abstract available at this time...
Coordination of bighorn research and management in Joshua Tree National Monument
C. L. Douglas
1977, Technical Report CPSU/UNLV 002/06
No abstract available at this time...
Map showing Mesozoic magnetic anomalies, western North Atlantic
Hans Schouten, Kim D. Klitgord
1977, Miscellaneous Field Studies Map 915
No abstract available....
Concepts in fish tank design
R. Henry
1977, Advisory Report 421
Abstract not submitted to date...
Control of whirling disease (Myxosoma cerebralis): Use of methylene blue staining as a possible indicator of effect of heat on spores
G. L. Hoffman, M.E. Markiw
1977, Journal of Fish Biology (10) 181-183
Methylene blue staining (0.08 %) was used to determine efficiency of heat treatment in killing spores of Myxosoma cerebralis. Nearly all spores heated at 90°C for 10 min and 70°C for 100 min became stained giving presumptive evidence that they were killed....
Recent and relict topography of Boo Bee patch reef, Belize
R. B. Halley, E.A. Shinn, J.H. Hudson, B. Lidz
D.L. Taylor, editor(s)
1977, Conference Paper, Proceedings: Third International Coral Reef Symposium
Five core borings were taken on and around Boo Bee Patch Reef to better understand the origin of such shelf lagoon reefs. The cores reveal 4 stages of development: (1) subaerial exposure of a Pleistocene "high" having about 8 meters of relief, possibly a Pleistocene patch reef; (2) deposition of...
Classification of the hydrologic settings of lakes in the north central United States
Thomas C. Winter
1977, Water Resources Research (13) 753-767
The hydrologic settings of 150 lakes in the north central United States were investigated by principal component analysis as a first attempt to develop a general classification of the hydrologic settings of lakes. Precipitation-evaporation balance and the water quality variables have high loadings on the first principal component. Highest loadings...
Specimens of type faces for maps
1977, Report
No abstract available....
Gravity measurements on summer sea ice in the Beaufort and Chukchi seas, 1976
Gary Boucher
1977, Open-File Report 77-705
During September, 1976, a series of gravity measurements was made in the western Beaufort Sea and the northern Chukchi Sea on ice floes and on a grounded ice island. The data were taken to evaluate the technique of measuring gravity on small ice floes in summer and to supplement and...
Moon-Mercury: Large impact structures, isostasy and average crustal viscosity
G. G. Schaber, J. M. Boyce, N.J. Trask
1977, Physics of the Earth and Planetary Interiors (15) 189-201
Thirty-five craters and basins larger than 200 km in diameter are recognized on the imaged portion (45%) of Mercury. If the unimaged portion of the planet is similarly cratered, a total of 78 such impact features may be present. Sixty-two craters and basins 200 km in diameter are recognized on...
Graphic analysis of resources by numerical evaluation techniques (Garnet)
A.C. Olson
1977, Computers & Geosciences (3) 539-545
An interactive computer program for graphical analysis has been developed by the U.S. Geological Survey. The program embodies five goals, (1) economical use of computer resources, (2) simplicity for user applications, (3) interactive on-line use, (4) minimal core requirements, and (5) portability. It is designed to aid (1) the rapid...
An exploratory drilling exhaustion sequence plot program
J.H. Schuenemeyer, L.J. Drew
1977, Computers & Geosciences (3) 617-631
The exhaustion sequence plot program computes the conditional area of influence for wells in a specified rectangular region with respect to a fixed-size deposit. The deposit is represented by an ellipse whose size is chosen by the user. The area of influence may be displayed on computer printer plots consisting...
Measured oxygen fugacities of the Angra dos Reis achondrite as a function of temperature
R. Brett, Huebner J. Stephen, M. Sato
1977, Earth and Planetary Science Letters (35) 363-368
Measurements of the oxygen fugacity (ƒO2) as a function of temperature (T) were made on an interior bulk sample of the cumulate achondrite, Angra dos Reis. Data clustered between theƒO2-T relationship of the iron-wüstite assemblage and 1.2 log atm units above iron-wüstite....
Techniques for the conversion to carbon dioxide of oxygen from dissolved sulfate in thermal waters
N.L. Nehring, P.A. Bowen, A.H. Truesdell
1977, Geothermics (5) 63-66
The fractionation of oxygen isotopes between dissolved sulfate ions and water provides a useful geothermometer for geothermal waters. The oxygen isotope composition of dissolved sulfate may also be used to indicate the source of the sulfate and processes of formation. The methods described here for separation, purification and reduction of...
Uranium and coexisting element behaviour in surface waters and associated sediments with varied sampling techniques used for uranium exploration
K.J. Wenrich-Verbeek
1977, Journal of Geochemical Exploration (8) 337-355
Optimum sampling methods in surface water and associated sediments for use in uranium exploration are being studied at thirty sites in Colorado, New Mexico, Arizona and Utah. For water samples, filtering is recommended to increase sample homogeneity and reproducibility because for most elements studied water samples which were allowed...
Long-term adequacy of metal resources
D.A. Singer
1977, Resources Policy (3) 127-133
Although the earth's crust contains vast quantities of metals, extraction technologies and associated costs are inextricably bound to three fundamental geological factors — the amount of metal available in the earth's crust in each range of grades, the mineralogical form and chemical state of the metal, and the spatial distribution...
Application of gold compositional analyses to mineral exploration in the United States
J.C. Antweiler, W. L. Campbell
1977, Journal of Geochemical Exploration (8) 17-29
Native gold is a mineral composed of Au, Ag and Cu in solid solution and it usually contains one or more trace metals as lattice impurities, as mineral inclusions, in grain boundaries or in surface coatings. Alloy proportions of Au, Ag and Cu, together with certain other elements, can...
