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Page 5039, results 125951 - 125975

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Publication Extents

Not all publications have extents, not all extents are completely accurate
A preliminary annotated bibliography on siliceous algal cysts and scales
David P. Adam, Albert D. Mahood
1979, Open-File Report 79-1215
As part of an investigation of the stratigraphic and environmental distributions of siliceous algal resting cysts, we have assembled this bibliography. The emphasis is on papers that illustrate these cysts, and our annotation concentrates on the nature of the illustrations. In some cases, we have also listed taxonomic names of...
Chemical analyses of coal from the Tongue River Member of the Fort Union Formation, Moorhead and southeastern part of the northward extension of the Sheridan coal fields, Powder River and Big Horn counties, Montana
Ronald H. Affolter, Joseph R. Hatch, William Craven Culbertson
1979, Open-File Report 79-538
As part of a continuing program by the U.S. Geological Survey to collect and chemically analyze representative samples of U.S. coals, 83 samples were collected from 23 core holes in the Paleocene Tongue River Member of the Fort Union Formation in Big Horn and Powder River counties, Montana. These holes...
Abundance and distribution of thorium in the carbonatite stock at Iron Hill, Powderhorn District, Gunnison County, Colorado
Theodore J. Armbrustmacher
1979, Open-File Report 79-536
The carbonatite stock at Iron Hill is part of an alkalic complex of Cambrian or latest Precambrian age containing pyroxenite, uncompahgrite, ijolite, nepheline syenite, and related rocks characterized by their subsilicic composition and by their lack of calcic plagioclase. Thorium averages 36.2 parts per million (ppm) Th (0.0041 percent Th02)...
Age control for the latest movements on the Melones fault zone in the Sierra Nevada foothills belt from K-Ar dates for Late Tertiary intrusions
J. Alan Bartow
1979, Open-File Report 79-582
K-Ar dates of 4.12 million years (m.y.) and 4.03 m.y. for two small dacite and rhyodacite intrusive bodies near Mokelumne Hill, Calif., provide important age control for the late Tertiary Mehrten Formation in this area because the Mehrten is both intruded by the dacite and rhyodacite and depositionally overlies the...
Sediment deposition in the White River Reservoir, northwestern Wisconsin
W. G. Batten, S. M. Hindall
1979, Open-File Report 79-1330
The history of deposition in the White River Reservoir was reconstructed from a study of sediment in the reservoir. Suspended-sediment concentrations, particle size, and streamflow characteristics were measured at gaging stations upstream and downstream from the reservoir from November 1975 through September 1977- Characteristics of the sediments were determined from...
Quality of water in Bayou Casotte and Bayou Chico, Jackson County, Mississippi
Gene A. Bednar
1979, Open-File Report 79-1059
A short-term water-quality study on Bayou Casotte and Bayou Chico on the Mississippi Gulf Coast was conducted on July 25-27, 1978. The results of the study indicated that the chemical and physical properties and range of concentrations of several dissolved constituents in both estuaries varied during a tide cycle primarily...