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Page 1741, results 43501 - 43525

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Estimation of the probability of success in petroleum exploration
J.C. Davis
1977, Journal of the International Association for Mathematical Geology (9) 409-427
A probabilistic model for oil exploration can be developed by assessing the conditional relationship between perceived geologic variables and the subsequent discovery of petroleum. Such a model includes two probabilistic components, the first reflecting the association between a geologic condition (structural closure, for example) and the occurrence of oil, and...
Radioactive springs geochemical data related to uranium exploration
R. A. Cadigan, J.K. Felmlee
1977, Journal of Geochemical Exploration (8) 381-395
Radioactive mineral springs and wells at 33 localities in the States of Colorado, Utah, Arizona and New Mexico in the United States were sampled and studied to obtain geochemical data which might be used for U exploration.The major source of radioactivity at mineral spring sites is 226Ra. Minor amounts...
Use of natural basin wetlands by breeding waterfowl in North Dakota
H.A. Kantrud, R. E. Stewart
1977, Journal of Wildlife Management (41) 243-253
Use of basin wetlands by breeding populations of 12 species of waterfowl was investigated in 1965 and during 1967-69 throughout the prairie pothole region of North Dakota. Data were obtained primarily by random sampling techniques. Of the total population occupying natural basin wetlands 55 percent occupied seasonal and 36 percent...
The chronic toxicity of 3-chloro-4-methyl benzamine HCl to birds
Edward W. Schafer Jr., Ronald B. Brunton, Donald J. Cunningham, Norman F. Lockyer
1977, Archives of Environmental Contamination and Toxicology (6) 241-248
3-Chloro-4-methyl benzamine HCl (DRC-1339), an avian toxicant, was fed to five species of birds for periods up to 120 days. The 30-day LC50 of uniformly treated feed for starlings was 4.7 ppm and the 90-day LC50 was 1.0 ppm. The 28-day LC50 for coturnix was 18 ppm. The 30-day LC50 for pigeons was...
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...
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...
Water resources data for Washington, water year 1976: Vol. 1 - Western Washington
Water Resources Division, U.S. Geological Survey
1977, Water Data Report WA-76-1
Water resources data for the 1976 water year for Washington, consist of records, of stage, discharge, and water quality of streams; stage, contents, and water quality of lakes and reservoirs; and water levels in wells and springs. This report, in two volumes, contains discharge records for 248 gaging stations; stage...
Developing a state water plan: Ground-water conditions in Utah, spring of 1976
C.T. Sumison, W.N. Jibson, E.L. Bolke, R. W. Mower, L. R. Herbert, R.M. Cordova, V.L. Jensen, M. D. ReMillard, G. W. Sandberg, L.J. Bjorklund
1976, Cooperative Investigations Report 15
This report is the thirteenth 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...
Exploration for porphyry copper deposits in Pakistan using digital processing of Landsat-1 data
Robert G. Schmidt
1976, Journal of Research of the U.S. Geological Survey (4) 27-34
Rock-type classification by digital-computer processing of Landsat-1 (formerly ERTS-1) multispectral scanner data has been used to select 23 prospecting targets in the Chagai District, Pakistan, 5 of which have proved to be large areas of hydrothermally altered porphyry containing pyrite. The known porphyry copper deposit at Saindak was used as...
Gravity and magnetic studies of the Geysers-Clear Lake geothermal region, California, USA
William F. Isherwood
1976, Conference Paper, Proceedings: second United Nations Symposium on the development and use of geothermal resources, San Francisco, California, USA, 20-29 May 1975
Gravity and magnetic fields in The Geysers-Clear Lake region are interpreted in relation to the known geology and other available geophysical data. New gravity data provide additional detail with the area of geothermal steam production. Computer techniques were used for removal of the regional gravity field, anomaly enhancement, and modeling...
Electronic thermal sensor and Data Collection Platform technology: Part 5 in Thermal surveillance of active volcanoes using the Landsat-1 Data Collection System
Duane M. Preble, Jules D. Friedman, David Frank
1976, Report, Thermal surveillance of active volcanoes using the Landsat-1 Data Collection System
Five Data Collection Platforms (DCP) were integrated electronically with thermall sensing systems, emplaced and operated in an analog mode at selected thermally significant volcanic and geothermal sites. The DCP's transmitted 3260 messages comprising 26,080 ambient, surface, and near-surface temperature records at an accuracy of ±1.15 °C for 1121 instrument days...
National Cartographic Information Center Newsletter No. 4
Water Resources Division, U.S. Geological Survey
1976, Newsletter 4
Last week, the editor of this publication was told to start signing the introduction. Something to do with credit given for work done. We look at it in the unfortunate light of accountability; our days under the bushel of anonymity are over. Speaking of accountability, it's about time we gave...
Relative influence upon microwave emissivity of fine-scale stratigraphy, internal scattering, and dielectric properties
A. W. England
1976, Pure and Applied Geophysics PAGEOPH (114) 287-299
The microwave emissivity of relatively low-loss media such as snow, ice, frozen ground, and lunar soil is strongly influenced by fine-scale layering and by internal scattering. Radiometric data, however, are commonly interpreted using a model of emission from a homogeneous, dielectric halfspace whose emissivity derives exclusively...
Mapping wetlands on beaver flowages with 35-mm photography
R.E. Kirby
1976, Canadian Field-Naturalist (90) 423-431
Beaver flowages and associated wetlands on the Chippewa National Forest, north-central Minnesota, were photographed from the ground and from the open side window of a small high-wing monoplane. The 35-mm High Speed Ektachrome transparencies obtained were used to map the cover-type associations visible on the aerial photographs. Nearly vertical aerial...
Mathematical models for non-parametric inferences from line transect data
K.P. Burnham, David R. Anderson
1976, Biometrics (32) 325-336
A general mathematical theory of line transects is developed which supplies a framework for nonparametric density estimation based on either right angle or sighting distances. The probability of observing a point given its right angle distance (y) from the line is generalized to an arbitrary function g(y). Given only...
Wildlife importation into the United States, 1900-1972
R.C. Banks
1976, Special Scientific Report - Wildlife 200
Data from Bureau of Biological Survey and U.S. Fish and Wildlife Service reports show an overall increase in the number of birds and mammals imported from 1900 to 1972. The trend was interrupted by World War I, the economic depression of the 1930's, and World War II. Data...
Behavior of trace elements during magmatic processes - A summary of theoretical models and their applications
Joseph G. Arth
1976, Journal of Research of the U.S. Geological Survey (4) 41-47
Progress in understanding the behavior of trace elements during the processes that produce igneous rocks has been made possible by the parallel development of theoretical models to describe that behavior and analytical techniques that permit precise measurement of trace-element concentrations in igneous rocks and minerals. The result of this progress...