Stratigraphic sections of Jurassic San Rafael Group and adjacent rocks in Iron and Washington counties, Utah
James Clifton Wright, Richard P. Snyder, Dayton Delbert Dickey
1979, Open-File Report 79-1318
No abstract available. ...
Preliminary aeromagnetic map of southeastern Alaska
John E. Decker
1979, Open-File Report 79-1694
Preliminary catalog of aftershocks of the Guatemala earthquake of February 4, 1976, from the area between Guatemala City and Lake Atitlan
R.A. White, David H. Harlow
1979, Open-File Report 79-864
A six-station seismic network, about 140 km in diameter, has been operated just west of Guatemala City since March 1975, as part of a cooperative project between the U.S. Geological Survey and the Institute Nacional de Sismologia, Vulcanologia, Meteorologia e Hidrologia (INSIVUMEH), of Guatemala. The purpose of this project was...
Preliminary lithologic and water quality data from test wells on Koehn Dry Lake, Kern County, California
Roger D. Dockter
1979, Open-File Report 79-1348
Preliminary geologic map of Cenozoic deposits of the Guinda, Dunningan, Woodland, and Lake Berryessa quadrangles, California
Edward J. Helley, Judith Ann Barker
1979, Open-File Report 79-1606
No abstract available....
Single-Channel Seismic-Reflection Profiles and Side-Scan Sonar Records Collected During June 8-14, 1977, in the Middle Atlantic Shelf Area
David C. Twichell
1979, Open-File Report 79-580
A cruise aboard the R/V OCEANUS (Cruise 027) was completed by the U.S. Geological Survey during June 8-14, 1977evaluate the presence, extent, and activity of potentially mobile bedforms on the Middle Atlantic Continental Shelf, eastern United States. Based on information collected by the U.S. Geological Survey during·a geophysical survey in...
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...
Discrimination of alteration in the Crooks Gap, Wyoming, uranium district using laboratory and Landsat spectral reflectance data
Timothy E. Townsend
1979, Open-File Report 79-765
The Crooks Gap area is a major uranium producing district in south-central Wyoming. Uranium occurs there as roll-type deposits in Tertiary sandstones. Alteration of the host sandstones related to the formation of the uranium deposits, is marked at the surface by a pronounced red coloration, which has long been used...
Benthic invertebrates, periphyton, and bottom material and their trace-metal concentrations in Salmon Creek basin, Clark County, Washington
Amy C. White, Stuart W. McKenzie
1979, Open-File Report 79-978
In 1978, data were collected for identification and quantification of benthic invertebrates, periphyton, and bottom material and their trace-metals concentrations from three sites in Salmon Creek basin, Wash. Metal analyses included arsenic, cadmium, chromium, copper, lead, zinc, selenium, and mercury. Physical data collected included water temperature, dissolved oxygen, pH, discharge,...
Map showing chromium, nickel, and cobalt stream-sediment geochemical anomalies, Ambler River quadrangle, Alaska
Inyo F. Ellersieck
1979, Open-File Report 78-120-H
Structure and structure contour maps of the Choteau 1°x2° quadrangle Lewis and Clark, Teton, Powell, Missoula, Lake, Flathead, and Cascade counties, Montana
Melville Rhodes Mudge, Robert L. Earhart
1979, Open-File Report 79-863
No abstract available....
Downhole pumps for water sampling in small diameter wells
F. C. Koopman
1979, Open-File Report 79-1264
The relatively high cost and difficulty in locating a source of pumps for use in obtaining ground-water samples from small-diameter wells has demonstrated a need for this report. Criteria for selection of a pump and pumping equipment to meet specific requirements has been tabulated to assist field personnel in making...
In situ bulk density and porosity estimates from borehole gravity data in limestones of the Madison Group; test well No. 1, Crook County, Wyoming
Bruce A. Kososki, Stephen L. Robbins
1979, Open-File Report 79-1514
In 1975 the U.S. Geological Survey, in cooperation with the Old West Regional Commission, prepared a plan of study (U.S. Geological Survey, 1975) for evaluating the water-supply potential of limestone of the Madison Group and associated rocks. To obtain better subsurface hydrologic and geologic information it was recognized that Madison...
Monitoring crustal strain, Cerro Prieto geothermal field, Baja California, Mexico
Ben Elder Lofgren, Bruce L. Massey
1979, Open-File Report 79-204
Significant ground deformation may be occurring in the Cerro Prieto geothermal area, Mexicali Valley, Mexico, as a direct result of extensive withdrawals of geothermal fluid and of continuing tectonism. In order to measure the magnitude and rate of this deformation, three networks of precise geodetic control were established in 1977-78,...
Geohydrologic reconnaissance of Lake Mead National Recreation Area; Hoover Dam to Mount Davis, Arizona
C.B. Bentley
1979, Open-File Report 79-690
Results of the chemical monitoring of the in-situ leaching of a South Texas uranium orebody
Robert W. Potter, M.A. Clynne, J. M. Thompson, V.L. Thurmond, Richard C. Erd, N.L. Nehring, Karen A. Smith, D.R. Tweeton, G.R. Anderson, W.H. Engelmann, P. J. Lamothe, J. L. Seeley
1979, Open-File Report 79-1144
Total field aeromagnetic map of Northeast Arkansas
J. D. Hendricks, T.G. Hildenbrand
1979, Open-File Report 79-1208
Geologic map of the south side of the Moon
D.E. Wilhelms, K. A. Howard, H. G. Wilshire
1979, IMAP 1162
The map of the lunar region below lat 45˚ S. is the sixth part of a complete geologic recon<span class="NormalTextRun...
Geologic maps of the San Guillermo, Lion Canyon, Topatopa Mountains, and Lockwood Valley quadrangles, California
T. W. Dibblee Jr.
1979, Open-File Report 79-1464
Geology, geochronology, and potential volcanic hazards in the Lava Ridge-Hells Half Acre area, eastern Snake River Plain, Idaho
Mel A. Kuntz, G. Brent Dalrymple
1979, Open-File Report 79-1657
The evaluation of volcanic hazards for the proposed Safety Test Reactor Facility (STF) at the Argonne National Laboratory-West (ANLW) site, Idaho National Engineering Laboratory (INEL), Idaho, involves an analysis of the geology of the Lava Ridge-Hells Half Acre area and of K-At age determinations on lava flows in cored drill...
Statistical summaries of surface-water-quality data for selected sites in Oklahoma, through the 1975 water year
J. K. Kurklin
1979, Open-File Report 79-219
Statistical summaries of surface-water-quality data for 47 streams in Oklahoma have been compiled. Data for the period of record through the 1975 water year at each site were used to develop regression equations for specific conductance-constituent relationships for calcium, magnesium, sodium, sodium plus potassium, bicarbonate, sulfate, chloride, silica, and dissolved...
Water resources data for New Hampshire and Vermont, water year 1978
Water Resources Division, U.S. Geological Survey
1979, Water Data Report NH-VT-78-1
No abstract available. ...
Floods in Puerto Rico, magnitude and frequency
Miguel A. Lopez, Eloy Colon-Dieppa, Ernest D. Cobb
1979, Water-Resources Investigations Report 78-141
Annual-peak discharge records at 50 sites in Puerto Rico with five or more years of record were used to determine individual site log-Pearson type III frequency curves. The frequency curve values for 2-, 10-, 25-, 50-, and 100-year recurrence intervals at 37 sites with 10 or more years of record...
Element concentrations toxic to plants, animals, and man
L. P. Gough, Hansford Threlkeld Shacklette, Arthur A. Case
1979, Bulletin 1466
Land use and land cover, 1972-74, Beaufort, North Carolina
Water Resources Division, U.S. Geological Survey
1979, Land Use and Land Cover 67
