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Page 4770, results 119226 - 119250

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Radioactivity and geochemistry of selected mineral-spring waters in the Western United States; basic data and multivariate statistical analysis
J.K. Felmlee, R. A. Cadigan
1982, Open-File Report 82-324
Multivariate statistical analyses were performed on data from 156 mineral-spring sites in nine Western States to analyze relationships among the various parameters measured in the spring waters. Correlation analysis and R-mode factor analysis indicate that three major factors affect water composition in the spring systems studied: (1) duration of water...
Quality of surface waters in Wilton, Connecticut
K.P. Kulp
1982, Open-File Report 82-260
Water, bed material, and biological samples were collected and analyzed at 10 surface-water gaging sites on six streams in the town of Wilton, Connecticut over a 2-year period. The data indicate fair to excellent water quality. Fecal coliform bacteria, pH, alkalinity, iron, and manganese are the parameters that most often...
Selected hydrogeologic data from southern Sweet Grass County, south-central Montana
R.D. Feltis, W.A. Wood
1982, Open-File Report 82-265
Selected hydrogeologic data from Sweet Grass County south of the Yellowstone River have been compiled to show baseline ground-water conditions. Included are records from a 1981 onsite inventory of 94 water wells and 30 springs. Chemical analyses of water show the major cation and anion concentrations for 40 wells and...
Statistical summaries of water-quality data for two coal areas of Jackson County, Colorado
Gerhard Kuhn
1982, Open-File Report 82-121
Statistical summaries of water-quality data are compiled for eight streams in two separate coal areas of Jackson County, Colo. The quality-of-water data were collected from October 1976 to September 1980. For inorganic constituents, the maximum, minimum, and mean concentrations, as well as other statistics are presented; for minor elements, only...
Progress report on geologic studies of the Ranger orebodies, Northern Territory, Australia
J. T. Nash, David Frishman
1982, Open-File Report 82-936
The Ranger No. 1 and No. 3 orebodies contain about 124,000 tonnes U3O8 in highly chloritized metasediments of the lower Proterozoic Cahill Formation within about 500 m of the projected sub-Kombolgie Formation unconformity. In both orebodies, oxidized and reduced uranium minerals occur chiefly in quartzose schists that have highly variable...
Digital model evaluation of the predevelopment flow system of the Tertiary limestone aquifer, Southeast Georgia, Northeast Florida, and South South Carolina
Richard E. Krause
1982, Open-File Report 82-173
A computer model using finite-difference techniques was used successfully to simulate the predevelopment flow regime within the multilayered Tertiary limestone aquifer system in Southeastern Georgia, Northeastern Florida, and Southern South Carolina as part of the U.S. Geological Survey 's Tertiary Limestone Regional Aquifer System analysis. The aquifer, of early Eocene...
Origin of the Mariano Lake uranium deposit, McKinley County, New Mexico
Neil S. Fishman, Richard L. Reynolds
1982, Open-File Report 82-888
The Mariano Lake uranium deposit, hosted by the Brushy Basin Member of the Jurassic Morrison Formation, occurs in the trough of an east-west trending syncline at the western end of the Smith Lake-Mariano Lake group of uranium deposits near Crownpoint, New Mexico. The orebody, which contains abundant amorphous organic material,...
Hydrotectonics; principles and relevance
R. W. Kopf
1982, Open-File Report 82-307
Hydrotectonics combines the principles of hydraulics and rock mechanics. The hypothesis assumes that: (1) no faults are truly planar, (2) opposing noncongruent wavy wallrock surfaces form chambers and bottlenecks along the fault, and (3) most thrusting occurs beneath the water table. These physical constraints permit the following dynamics. Shear displacement...
Phase 3 geophysical studies in the Wadi Bidah District, Kingdom of Saudi Arabia
V. J. Flanigan, Hamdy Sadek, C. W. Smith
1982, Open-File Report 82-597
Detailed geophysical measurements have been made in the Rabathan area, Wadi Bidah district, Kingdom of Saudi Arabia, at the site of diamond drill holes RAB-1, -2, and -3; these measurements suggest that the causative source for the anomalous EM (electromagnetic) and SP (self-potential) responses is probably highly conductive zones of...
The lanthanides and yttrium in minerals of the apatite group; a review
Michael Fleischer, Z. S. Altschuler
1982, Open-File Report 82-783
More than 1000 analyses have been tabulated of the distribution of the lanthanides and yttrium in minerals of the apatite group, recalculated to atomic percentages. Average compositions have been calculated for apatites from 14 types of rocks. These show a progressive change of composition from apatites of granitic pegmatites, highest...
Use of geophysical logs in recognizing depositional environments in the Tongue River Member of the Fort Union Formation, Powder River area, Wyoming and Montana
R. M. Flores, J.C. Toth, T.A. Moore
1982, Open-File Report 82-576
The environmental conditions under which rocks in the Paleocene Tongue River Member of the Fort Union Formation were deposited in the Powder River area, Wyoming and Montana, can be determined using geophysical logs with some limitations. It is widely recognized that gamma ray and density logs are useful in identifying...