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Page 4895, results 122351 - 122375

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Quality of surface water in the coal-mining areas of western Maryland and adjacent areas of Pennsylvania and West Virginia from April 1979 to June 1980
W. W. Staubitz
1981, Open-File Report 81-812
The U.S. Geological Survey is studying the water quality of streams within the Eastern Coal Province. This report contains streamflow, water-quality, and biologic data collected in the North Branch Potomac River basin and in the Maryland portion of the Youghiogheny and Casselman River basins. Data collected from 64 streams from...
Eastern Gulf of Alaska seismicity: Annual report to the National Oceanic and Atmospheric Administration for April 1, 1980, through March 31, 1981
Christopher D. Stephens, John C. Lahr, John A. Rogers
1981, Open-File Report 81-897
The objective of this research is to collect and analyze data on earthquake activity in the northeast Gulf of Alaska (NEGOA) and adjacent onshore areas in order to develop a better regional seismotectonic model and more accurately assess the earthquake potential. This information is critical to the establishment of criteria...
The Earth Resources Observation Systems data center's training technical assistance, and applications research activities
J. A. Sturdevant
1981, Open-File Report 81-1247
The Earth Resources Observation Systems (EROS) Data Center (EDO, administered by the U.S. Geological Survey, U.S. Department of the Interior, provides remotely sensed data to the user community and offers a variety of professional services to further the understanding and use of remote sensing technology. EDC reproduces and sells photographic...
Dissolution of sphalerite in ferric chloride solution
Huai Su
1981, Open-File Report 81-609
The dissolution of sphalerite in acidic ferric chloride solution of polished flat surfaces and of spherical particle surface was investigated. Tests were conducted on sphalerite to study rate of dissolution by the effects of stirring speed, temperature, ferric and ferrous concentrations, purity, and particle size.Kinetic investigations were conducted in a...
Annotated selected references on natural resources investigations, Collier County, Florida
Leo J. Swayze
1981, Open-File Report 81-1184
A data base for future natural resources investigations in Collier County was initiated by compiling a selected annotated bibliography. This report provides references and annotations for selected reports released between 1950 and 1978. The references are presented by subject material as follows: biologic, ecologic, geologic, geochemical, and hydrologic....
Proceedings of the Symposium on Mineral Deposits of the Pacific Northwest: Geological Society of America, Cordilleran Section meeting at Corvallis, Oregon, March 20-21, 1980
Miles L. Silberman, C. W. Field, Anne L. Berry
1981, Open-File Report 81-355
Stratiform and volcanogenic zinc-lead-barium deposits occur within the pelagic Kagvik sequence in the Red Dog Creek and Drenchwater Creek areas in the DeLong Mountains and Howard Pass quadrangles. The sulfide deposits occur together with barite, tuff, sandstone, shale, chert, and keratophyre flows and sills. The three main occurrences of the...
Evaluation of major dike-impounded ground-water reservoirs, Island of Oahu, with a section on flow hydraulics in dike tunnels in Hawaii
Kiyoshi J. Takasaki, John F. Mink
1981, Open-File Report 81-1119
Ground-water reservoirs impounded by volcanic dikes receive a substantial part of the total recharge to ground water on the island of Oahu because they generally underlie the rainiest areas. They accumulate the infiltration from rainfall, store it temporarily, and steadily leak it to abutting basal reservoirs or to streams cutting...
Manual for leveling at gaging stations in North Carolina
N.O. Thomas, N.M. Jackson
1981, Open-File Report 81-1104
This manual was prepared to serve several purposes in the U.S. Geological Survey North Carolina District. This manual sets forth District policy as to frequency of levels, accuracy criteria, procedures for checking the datum and setting of the various types of gages, general rules to follow in establishing the original...
Benthic macrofaunal biomass of San Francisco Bay, California; January, February, and August 1973
Janet Kay Thompson, Frederic H. Nichols
1981, Open-File Report 81-1331
Benthic macrofaunal biomass data from San Francisco Bay are presented for 43 stations which were sampled in January/February and August 1973. Biomass data for four major groups (Mollusca, Annelida, Athropoda, and a combination of remaining phyla) and for the groups combined are provided with relative rank at each station for...