Geologic estimates and future costs of strip mining coal
Emil Attanasi, E.K. Green
1982, Energy Systems and Policy (6) 193-212
Geologic coal-resource appraisals, which typically describe the location and general characteristics of coalbeds, do not generally provide enough information to estimate the cost of developing the resource or to predict the escalation of costs expected to result from physical depletion. This paper considers the nature of data and methods of...
Earth Science Information System (ESIS)
Water Resources Division, U.S. Geological Survey
1982, Report
The Earth Science Information System (ESIS) was developed in 1981 by the U.S. Geological Survey's Office of the Data Administrator. ESIS serves as a comprehensive data management facility designed to support the coordination, integration, and standardization of scientific, technical, and bibliographic data of the U.S. Geological Survey (USGS). ESIS provides,...
Capture-recapture and removal methods for sampling closed populations
Gary C. White, David R. Anderson, Kenneth P. Burnham, David L. Otis
1982, Report
The problem of estimating animal abundance is common in wildlife management and environmental impact asessment. Capture-recapture and removal methods are often used to estimate population size. Statistical Inference From Capture Data On Closed Animal Populations, a monograph by Otis et al. (1978), provides a comprehensive synthesis of much of the...
Wilderness permit accuracy: differences between reported and actual use
David J. Parsons, Thomas J. Stohlgren, James M. Kraushaar
1982, Environmental Management (6) 329-335
Wilderness permits are valuable tools for recording backcountry use patterns. They provide a valuable basis upon which management decisions are made. Unfortunately, significant inaccuracies in reporting permit data result from noncompliance, transmission errors, and changes in visitor plans. Data from Sequoia and Kings Canyon National Parks in California show that...
Hydrogeochemical prospecting for porphyry copper deposits in the tropical-marine climate of Puerto Rico
W. R. Miller, W. H. Ficklin, R. E. Learned
1982, Journal of Geochemical Exploration (16) 217-233
A hydrogeochemical survey utilizing waters from streams and springs was conducted in the area of two known porphyry copper deposits in the tropical-marine climate of westcentral Puerto Rico. The most important pathfinder for regional hydrogeochemical surveys is sulfate which reflects the associated pyrite mineralization. Because of increased mobility due to...
Uraniferous opal, Virgin Valley, Nevada: Conditions of formation and implications for uranium exploration
R. A. Zielinski
1982, Journal of Geochemical Exploration (16) 197-216
Uraniferous, fluorescent opal, which occurs in tuffaceous sedimentary rocks at Virgin Valley, Nevada, records the temperature and composition of uranium-rich solutions as well as the time of uranium-silica coprecipitation. Results are integrated with previous geologic and geochronologic data for the area to produce a model for uranium mobility that may...
Application of wave field continuation to the inversion of refraction data
G. A. McMechan, Robert W. Clayton, Walter D. Mooney
1982, Journal of Geophysical Research B: Solid Earth (87) 927-935
Three examples of the inversion of refraction data by downward continuation illustrate the applicability of the method to field data. The first example is a refraction profile from the Mojave Desert, California. These data are spatially aliased and contain clear evidence of lateral inhomogeneity. The inversion in...
Mid-Paleozoic age of the Roberts thrust unsettled by new data from northern Nevada
Keith B. Ketner, Fred J. Smith Jr.
1982, Geology (10) 298-303
The Roberts thrust is a major thrust in Nevada on which Ordovician to Devonian siliceous facies rocks were carried more than 80 km eastward over contemporaneous carbonate facies. For more than two decades, a mid-Paleozoic age for this structure has been widely accepted. The bases for dating the thrust are...
Use of blood levels to infer carcass levels of contaminants
Gary L. Hensler, William C. Stout
1982, Archives of Environmental Contamination and Toxicology (11) 235-238
Inferences may be made about the carcass levels of a contaminant based on the contaminant level in blood samples. A method is given for comparing such populations that utilizes bivariate normal distributions and their principal axes, thereby avoiding a dilemma arising from the use of regression techniques. Confidence intervals and...
A late Pleistocene glacial chronology for the southern Brooks Range: Stratigraphic record and regional significance
T. D. Hamilton
1982, GSA Bulletin (93) 700-716
Radiocarbon dates from 11 measured sections in the Koyukuk region provide a chronology of the last Pleistocene glaciation. Glaciers were advancing strongly by 24,000 yr ago; they built moraines near the south flank of the Brooks Range, retreated briefly about 22,000 to 20,000 yr B.P., then readvanced at least one...
Hydrologic data from monitoring of saline-water intrusion in the Cape Coral area, Lee County, Florida
Daniel J. Fitzpatrick
1982, Open-File Report 82-772
As a result of declining water levels and saline-water intrusion in the Cape Coral area, the U.S. Geological Survey in cooperation with the City of Cape Coral established a monitoring well network in Cape Coral and adjacent areas in 1978-79. The network was designed to provide indication of lateral movement...
Water resources data
Water Resources Division, U.S. Geological Survey
1982, Report, U.S. Geological Survey water-supply paper
No abstract available....
Water resources data
Water Resources Division, U.S. Geological Survey
1982, Report, U.S. Geological Survey water-supply paper
No abstract available....
Water resources data
Water Resources Division, U.S. Geological Survey
1982, Report, U.S. Geological Survey water-supply paper
No abstract available....
Water resources data
Water Resources Division, U.S. Geological Survey
1982, Report, U.S. Geological Survey water-supply paper
No abstract available....
Water resources data
Water Resources Division, U.S. Geological Survey
1982, Report, U.S. Geological Survey water-supply paper
No abstract available....
Water resources data
Kentucky Geological Survey
1982, Report, U.S. Geological Survey water-supply paper
No abstract available....
Water resources data
Water Resources Division, U.S. Geological Survey
1982, Report, U.S. Geological Survey water-supply paper
No abstract available....
Water resources data
Water Resources Division, U.S. Geological Survey
1982, Report, U.S. Geological Survey water-supply paper
No abstract available....
Water resources data
Water Resources Division, U.S. Geological Survey
1982, Report, U.S. Geological Survey water-supply paper
No abstract available....
Water resources data: Wyoming
Water Resources Division, U.S. Geological Survey
1982, Report, U.S. Geological Survey water-supply paper
No abstract available....
Land Use and land cover and associated maps
Water Resources Division, U.S. Geological Survey
1982, Report
The Geological Survey is compiling land use and land cover and associated maps for the entire United States. Land use refers to man's activities which are directly related to the land. Land cover describes the vegetation, water, natural surface, and artificial constructions at the land surface. These maps will help...
Water resources data: Wisconsin
Water Resources Division, U.S. Geological Survey
1982, Report, U.S. Geological Survey water-supply paper
No abstract available....
Water resources data: West Virginia
Water Resources Division, U.S. Geological Survey
1982, Report, U.S. Geological Survey water-supply paper
No abstract available....
A technique for estimating time of concentration and storage coefficient values for Illinois streams
Julia B. Graf, George Garklavs, Kevin A. Oberg
1982, Water-Resources Investigations Report 82-22
Values of the unit hydrograph parameters time of concentration (TC) and storage coefficient (R) can be estimated for streams in Illinois by a two-step technique developed from data for 98 gaged basins in the State. The sum of TC and R is related to stream length (L) and main channel...
