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Page 5410, results 135226 - 135250

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Not all publications have extents, not all extents are completely accurate
Middle Tertiary plutonism in the Santa Catalina and Tortolita Mountains, Arizona
S.C. Creasey, Norman G. Banks, R. P. Ashley, Ted G. Theodore
1976, Open-File Report 76-262
Recent reconnaissance geologic mapping in the Santa Catalina and Tortolita Mountains of southeastern Arizona, supplemented by new and published potassium-argon and fission-track ages, suggests that a large middle Tertiary (about 25 m.y.) composite batholith crops out extensively in both mountains. More than two-thirds of the batholith and the contiguous wallrocks...
Reaeration-coefficient measurements of 10 small streams in Wisconsin using radioactive tracers : with a section on the energy-dissipation model
R. Stephen Grant
1976, Water-Resources Investigations Report 76-96
Reaeration-rate coefficients were measured for 10 small streams in Wisconsin using the radioactive-tracer method. The coefficients ranged from 2.06 to 55.2 per day (base e at 25 degrees Celsius). Stream discharges ranged from 0.3 to 37.0 cubic feet per second, most discharges being less than 10 cubic feet per second....
Preliminary investigation of the elemental variation and diagenesis of a tabular uranium deposit, La Sal Mine, San Juan County, Utah
Robert A. Brooks, John A. Campbell
1976, Open-File Report 76-287
Ore in the La Sal mine, San Juan County, Utah, occurs as a typical tabular-type uranium deposit of the-Colorado Plateau. Uranium-vanadium occurs in the Salt Wash Member of the Jurassic Morrison Formation. Chemical and petrographic analyses were used to determine elemental variation and diagenetic aspects across the orebody. Vanadium is...
Water resources data for Louisiana, water year 1976: Volume 2. Southern Louisiana
Water Resources Division, U.S. Geological Survey
1976, Water Data Report LA-76-2
Water resources data for the 1976 water year for Louisiana consist of records of stage, discharge, and water quality of streams; water quality of lakes; and water levels and water quality for wells. This report contains discharge records for 22 gaging stations; stage only records for 12 gaging stations; water...
Mineral resources of Elko County, Nevada
Roscoe Maurice Smith
1976, Open-File Report 76-56
Of the 66 named mining districts in Elko County, 56 have been productive of one or more of 19 different commodities: 11 metals--copper, gold, silver, lead, zinc, mercury, tungsten, manganese, iron, uranium, and antimony; 8 nonmetals--sand and gravel, stone, barite, diatomite, gems, oil shale, volcanic ash, and clay. In addition...
Hydrologic studies of the U.S. Geological Survey related to coal development on Colorado
Water Resources Division, U.S. Geological Survey
1976, Open-File Report 76-549
This report summarizes the hydrologic studies related to coal development being conducted by the U.S. Geological Survey in the State of Colorado. The objective of the hydrologic data-acquisition program is to collect surface-water quality and quantity data and ground-water level records. These data are needed to define predevelopment conditions and...
Geochemical and hydrologic data for wells and springs in thermal-spring areas of the Appalachians
W.A. Hobba, J.C. Chemerys, D.W. Fisher, F. J. Pearson Jr.
1976, Open-File Report 76-550
Current interest in geothermal potential of thermal-spring areas in the Appalachians makes all data on thermal springs and wells in these areas valuable. Presented here without interpretive comment are maps showing selected springs and wells and tables of physical and chemical data pertaining to these wells and springs. The chemical...
A possible petroleum related helium anomaly in the soil gas, Boulder and Weld Counties, Colorado
Alan A. Roberts, M.C. Dalziel, L.A. Pogorski, S.G. Quirt
1976, Open-File Report 76-544
A survey of the concentrations of helium in the soil gas conducted over a portion of the Denver Basin in Boulder and Weld Counties, Colorado, supports the existence of a potential petroleum prospect that was suggested by earlier geochemical analyses of the outcropping sandstones. The helium survey technique may prove...
Flood-plain delineation for Difficult Run Basin, Fairfax County, Virginia
P.L. Soule
1976, Open-File Report 76-459
Water-surface profiles of the 25-year and 100-year floods and maps on which the 25-, 50-, and 100-year flood boundaries are delineated for streams in the Difficult Run basin are presented in this report.The techniques used in the computation of the flood profiles and delineation of flood boundaries are presented, and...
Radioactive mineral springs in Delta County, Colorado
Robert A. Cadigan, John N. Rosholt, J. Karen Felmlee
1976, Open-File Report 76-223
The system of springs in Delta County, Colo., contains geochemical clues to the nature and location of buried uranium-mineralized rock. The springs, which occur along the Gunnison River and a principal tributary between Delta and Paonia, are regarded as evidence of a still-functioning hydrothermal system. Associated with the springs are...
Handbook for USGS Central California Microearthquake Network, 1969-1975
Stephen Travis Houck, J.D. Guerrero, A.E. Miller, W.H. Lee
1976, Open-File Report 76-282
The Central California Microearthquake Network of the United States Geological Survey furnishes a large volume of earthquake data concerning seismic activity in Central California. It is our hope that this report will render these data more accessible. We will try to accomplish this by presenting tables dealing with station location,...
Preliminary report on uranium-, thorium-, and rare-earth-bearing rocks near Golovin, Alaska
Thomas P. Miller, Raymond L. Elliott, Warren I. Finch, Robert A. Brooks
1976, Open-File Report 76-710
Uranium-, thorium-, and rare-earth bearing rocks were found by a U.S. Geological Survey field party 15 miles northeast of Golovin, Alaska, in  the southeastern Seward Peninsula (fig. 1) in June 1976. The mineralized areas occur in syenite and appear to be concentrated along the margins of alkaline dikes, with allanite...