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Page 5107, results 127651 - 127675

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Alteration and vein mineralization, Ladwig uranium mine, Jefferson County, Colorado
Alan R. Wallace
1979, Open-File Report 79-1615
Uranium ore at the Ladwig mine, Jefferson County, Colo., occurs in steeply dipping, northwest-striking faults and related fractures with a carbonate-adularia assemblage that forms in altered wallrocks and fills veins. The faults occur between large intrusive pegmatites and garnetiferous gneisses of Precambrian age, and were reactivated as the result of...
Hydrologic evaluation of the Alton reclamation-study site, Alton coal field, Utah
G. W. Sandberg
1979, Open-File Report 79-346
This investigation was conducted from July 1974 to September 1977 to define general hydrologic conditions at a reclamation-study site in the Alton coal field near Kanab, Utah. The average annual streamflow through the area was less than 600 acre-feet (0.7 cubic hectometer), and the water carried little sediment except during...
Occurrence of uranium in rocks of the intrusive complex at Ekiek Creek, western Alaska
Alan R. Wallace
1979, Open-File Report 79-1653
Uranium in the Ekiek Creek Complex of western Alaska is related to a niobium-rich pyrochlore in the nepheline syenite of the complex. The complex consists of an aegirine-phlogopite pyroxenite that has been intruded and partly replaced by nepheline syenite. The contact zone between the two igneous units varies from a...
Investigation of the Hosgri fault, offshore southern California, Point Sal to Point Conception
C. M. Payne, O. E. Swanson, B. A. Schell
1979, Open-File Report 79-1199
A high-resolution seismic reflection survey of the inner continental shelf between Point Sal and Point Conception has revealed faults that displace post-Wisconsin strata (less than 17,000-20,000 years). These faults are the Hosgri fault, the Offshore Lompoc fault, and smaller unnamed faults. Faults trending offshore from the adjacent shoreline such as...
Petroleum source potential of rocks dredged from the continental slope in the eastern Gulf of Alaska
George Plafker, George Edwin Claypool
1979, Open-File Report 79-295
A bedrock dredging program by the R/V Sea Sounder in 1977 and 1978 along the continental slope in the eastern Gulf of Alaska revealed a previously unknown Eocene sedimentary sequence that includes argillaceous rocks with favorable petroleum source rock characteristics. Seven of 36 dredge hauls that sampled outcrop contain argillaceous...
Borehole gravity surveys in native-sulfur deposits, Culberson and Pecos counties, Texas
James W. Schmoker, Stephen L. Robbins
1979, Open-File Report 79-361
Native-sulfur deposits in west Texas are heterogeneous, with sulfur content and formation properties varying significantly over small vertical and horizontal distances. The zone of recovery of the Frasch process extends tens or even hundreds of feet around each recovery well, but the investigation depth of most wire-line logs is measured...
Hydrologic records, Verna well-field area, City of Sarasota, Florida, 1962-76: a data report
Horace Sutcliffe, Anthony Buono
1979, Open-File Report 79-1259
A short history of the development and operation of the Verna well field in Florida is presented. Also included are geological , drillers ' and selected geophysical logs of test and production wells; chemical analyses; specific capacity tests; pumpage; physical dimensions of wells; and source for other data available as...
Hydrologic data from a deep test well, City of Sarasota, Florida
Horace Sutcliffe Jr.
1979, Open-File Report 79-1275
The city of Sarasota drilled a test well to a depth of 3,513 feet at the city's wastewater-treatment facility in downtown Sarasota. The test well was drilled to determine the feasibility of disposing of liquid waste from the city's secondary treatment plant. Drilling of the test well began in July...
U.S. Geological Survey seismic engineering data report, 1974-75 records; strong-motion earthquake accelerograms digitization and analysis
A. G. Brady, V. Perez
1979, Open-File Report 79-929
This is the fourth of a series of reports planned to include the results of digitization and routine analyses of strong-motion earthquake accelerograms published by the U.S. Geological Survey. Serving as a model for this effort is the collection of data reports published by the Earthquake Engineering Research Laboratory of...
Selected coal-related ground-water data, Wasatch Plateau-Book Cliffs area, Utah
C. T. Sumsion
1979, Open-File Report 79-915
The Wasatch Plateau-Book Cliffs%area as used in this report consists of about 8,000 square miles in east-central Utah. The major geographic features included in the area are the Wasatch Plateau, Book Cliffs, San Rafael Swell, Price River basin, and a small part of the Green River basin (pl. 1). The...
Decollement in the southern Allegheny Plateau of Pennsylvania
Howard A. Pohn, Terri L. Purdy
1979, Open-File Report 79-1321
Recent field investigations in the Allegheny Plateau north of Williamsport, Pennsylvania have shown the presence of both southward dipping, low-angle thrust faults translated to the north and northward dipping back or antithectic thrusts translated to the south at the leading (north) edge of Barclay syncline. The presence of these thrusts,...
Hydrogeology of the Gatlinburg area, Tennessee
Ann Zurawski
1979, Open-File Report 79-1167
A study of ground-water availability in the Gatlinburg area, Tenn., was undertaken to improve concepts of ground-water occurrence in the Blue Ridge and demonstrate that ground water is present in sufficient quantities to provide an alternative to surface water as a source of supply. Of 25 test wells, 8 produced...
Floods of December 1978 in Kentucky
J.N. Sullavan, F. Quinones, Richard Foster Flint
1979, Open-File Report 79-977
In 1978, severe flooding throughout the State of Kentucky occurred from December 3-10 as a result of intense precipitation from two storms. The storms of December 3-5 and December 7-10 produced record peak discharges in several areas throughout central and eastern Kentucky, resulting in damages of nearly 50 million dollars...
The subsurface geology of the Florida-Hatteras shelf, slope, and inner Blake Plateau
Charles K. Paull, William P. Dillon
1979, Open-File Report 79-448
The structure and stratigraphy of the Florida-Hatteras Slope and inner Blake Plateau was studied by means of 4,780 km of single-channel air gun seismic reflection profiles. Control for the seismic stratigraphy is provided by correlating reflecting units and paleontologically dated stratigraphic units identified in offshore wells and dredge hauls. Many...
Thrust fault zones in the Allegheny Plateau of north-central Pennsylvania
Howard A. Pohn, Terri L. Purdy
1979, Open-File Report 79-1604
Field investigations in the Williamsport Valley identify lineaments found on Landsat III images, have shown the presence of six discrete fault zones that strike subparallel to the trend of the Appalachian folds. These zones range from 0.5 to 1.75 km in width and from at least 10 km to more...
A revised version of Graphic Normative Analysis Program (GNAP) with examples of petrologic problem solving
J. S. Stuckless, G. VanTrump
1979, Open-File Report 79-1237
A revised version of Graphic Normative Analysis Program (GNAP) has been developed to allow maximum flexibility in the evaluation of chemical data by the occasional computer user. GNAP calculates ClPW norms, Thornton and Tuttle's differentiation index, Barth's cations, Niggli values and values for variables defined by the user. Calculated values...