Selected data from thermal-spring areas, southwestern Montana
Robert B. Leonard, Tordis M. Brosten, Norman A. Midtlyng
1978, Open-File Report 78-438
During 1975-77 the Montana district of the U.S. Geological Survey collected and assembled data describing the flow, temperature, and chemical characteristics of thermal and related waters. The work was part of an assessment of the geothermal resources of southwestern Montana, excluding Yellowstone Park. The purpose of this report is to...
Water-quality investigation near the Chico and Hunters geothermal lease-application areas, Park and Sweet Grass counties, Montana
Robert B. Leonard, Ronald R. Shields, Norman A. Midtlyng
1978, Open-File Report 78-199
Water quality in and adjacent to geothermal lease-application areas near Chico and Hunters Hot Springs was investigated during two surveys in October 1976 and April 1977. The resulting data were needed to evaluate the effects of proposed geothermal exploration and development on the Yellowstone River and its tributaries.Waters from the...
Analyses of water, core material, and elutriate samples collected near Yazoo City, Mississippi (Yazoo Headwater Project)
Harold L. Leone, Alton J. Dupuy
1978, Open-File Report 78-792
Five core-material-sampling sites were chosen by the U.S. Army Corps of Engineers to represent areas of proposed dredging activity. Four receiving-water sites also were selected to represent the water that will contact the proposed dredged material. Chemical and physical analyses were performed upon core material and native-water samples from these...
Anomalous occurrence of uranium in alpine peats, Summit County, Colorado, and results of a simple sample fractionation procedure
Joel S. Leventhal, Joan K. Jennings, Alan J. Lemke
1978, Open-File Report 78-235
Samples from Summit County, Colo., were fractionated for analyses of organic content and uranium. The uranium is related to organic content but not to type of organic matter. In one area uranium values are around 100 ppm in bulk samples and as much as 200 ppm in certain separated fractions...
Proposed parameters for an automated mapping satellite (Mapsat) system
Alden P. Colvocoresses
1978, Open-File Report 78-932
Landsats-1, -2, and -3, although not defined as mapping satellites, are in fact effectively recording the Earth in a form suitable for presentation as small-scale image maps. These spacecraft have demonstrated the effectiveness of Earth sensing, which must now move from the research to the operational phase. Landsat-D is designed...
South Carolina seismic program seismological data report, July 1975-June 1977
David L. Carver, Mary Kay Wharton, Ronald D. Cook
1978, Open-File Report 78-487
The purpose of this data report is to collect and distribute preliminary data acquired from a network of seismic stations (Tarr and King, 1974) in order to facilitate current studies of earthquake occurrence. Record interpretation, data processing, and collation of hypocenter data and related-event parameters are performed by the U.S....
Preliminary report on the aftershocks of the June 20, 1978, Thessaloniki, Greece, earthquake
David L. Carver, Ronald Henrisey
1978, Open-File Report 78-1099
A ground-water inventory of the Waialua basal-water body, Island of Oahu, Hawaii
Robert H. Dale
1978, Open-File Report 78-24
The Waialua basal-water body underlies an area of about 18 square miles on the north shore of the island of Oahu, Hawaii. The basal-water body is a body of fresh ground water that floats on saline ground water in a highly permeable and porous basaltic aquifer. Inflow to the basal-water...
Petrology of Potomac Group sands in Fairfax County, Virginia
Roy C. Lindholm
1978, Open-File Report 78-512
The Potomac Group sands sampled in Fairfax County are dominantly microcline-rich lithic arkoses. Quartz averages 59%, microcline 25%, plagioclase less than 1% and lithic grains 16%. Most sands are texturally submature and medium grained. Microcline is somewhat more abundant in the deeper beds in the subsurface than in the shallow...
Mineral potential of altered rocks near Blawn Mountain, Wah Wah Range, Utah
David A. Lindsey, Lee M. Osmonson
1978, Open-File Report 78-114
A mineralized area near Blawn Mountain in the southern Wah Wah Range has potential for deposits of lithophile metals, including uranium, tin, molybdenum, and beryllium. An area of iron oxide, alunite, and kaolinite alteration in rhyolite on Blawn Mountain overlaps southward with an area of fluorite, montmorillonite, and illite alteration...
Postulated model of uranium occurrence in the central mining area, Marysvale District, west-central Utah
Charles G. Cunningham, Thomas August Steven
1978, Open-File Report 78-1093
Uranium in the central mining area of Marysvale, Utah occurs in hydrothermal veins cutting granitic and volcanic rocks in the eastern source area of the Mount Belknap Volcanics. A preliminary model for the origin of the veins envisages deposition in near-surface fractures above an unexposed pluton that may host a...
Agricultural land use and water quality in the upper St. Joseph River basin, Michigan
T. Ray Cummings
1978, Open-File Report 78-950
Land use in the upper St. Joseph River basin of south-central Michigan is primarily agricultural. In the 144-square-mile area, the chemical and physical characteristics of water are determined by the climate and soils, as well as by land conservation practices. Municipal waste discharges affect water quality at some locations, as...
A laboratory control system using the PDP 1103 microprocessor
David A. Lockner, John D. Weeks, J.D. Byerlee
1978, Open-File Report 78-125
Monitoring crustal deformation in the Geysers-Clear Lake geothermal area, California
Ben Elder Lofgren
1978, Open-File Report 78-597
Geodetic surveys since 1972-73 reveal significant crustal deformation in The Geysers-Clear Lake region. Resurveys of precise control networks are measuring both vertical and horizontal ground movement, with most of the change continuing in the area of geothermal fluid withdrawal. Preliminary evidence suggests right-lateral horizontal movement on northwest-trending fault systems and...
Fission-track dating of apatite and zircon: an interlaboratory comparison
Charles W. Naeser, Gerald T. Cebula
1978, Open-File Report 78-108
Fission-track dating of the Climax and Gold Meadows stocks, Nye County, Nevada
Charles W. Naeser, Florian Maldonado
1978, Open-File Report 78-419
Fission-track ages indicate an age of 101 m.y. for the Climax stock and a minimum age of 93.6 m.y. for the Gold Meadows stock, both at the Nevada Test Site, Nye County, Nevada. Younger fission-track ages for apatite concentrates suggest that the stocks have been within 4 km of the...
The water table on Long Island, New York, in March 1975
James H. Nakao, Freddy R. Erlichman
1978, Open-File Report 78-569
Preliminary geologic map of the Gillette 1° x 2° quadrangle, northwestern Wyoming and western South Dakota
J. D. Love, Ann Coe Christiansen, Laura W. McGrew
1978, Open-File Report 78-343
No abstract available....
Mahd adh Dhahab: Precambrian epithermal gold deposit in Saudi Arabia
Robert W. Luce, James R. O’Neil, Robert O. Rye
1978, Open-File Report 78-388
No abstract available....
Neogene tectonic evolution of the California Continental Borderland and the western Transverse Ranges
James K. Crouch
1978, Open-File Report 78-606
Eolian sand and interbedded organic horizons at Kealok Creek on the Arctic Coastal Plain of Alaska: possible regional implications
L. David Carter, S.W. Robinson
1978, Open-File Report 78-320
Eolian sand has long been recognized as a widespread but minor facies of supposedly dominantly marine sediments of the Gubik Formation of the Arctic Coastal Plain (Smith and Mertie, 1930; Black, 1951 and 1964; O'Sullivan, 1961). Descriptions of eolian landforms of the coastal plain have been published by several authors,...
Composite log-type III frequency-magnitude curve of annual floods
John R. Crippen, Saul E. Rantz
1978, Open-File Report 78-352
Five-day recorder seismic system
Ed Criley, Jerry P. Eaton, Jim Ellis
1978, Open-File Report 78-266
The 10-day recorder seismic system used by the USGS since 1965 has been modified substantially to improve its dynamic range and frequency response, to decrease its power consumption and physical complexity, and to make its recordings more compatible with other NCER systems to facilitate data processing. The principal changes include:...
Floodflow analysis of Ninemile Creek, Onondaga County, New York
Richard Lumia, Bernard Dunn
1978, Open-File Report 78-85
A flood-stage and discharge analysis was made for a 3.61 mile reach of Ninemile Creek between Amboy and Camillus. Water-surface profiles were developed for 50-year, 100-year, and September 26, 1975 flood discharges at Camillus for four different channel conditions: (1) with four culverts at Camillus bypass and a bridge at...
Supplementary hydraulic analysis of proposed bridge site on Mohawk River, Whitesboro, New York
Richard Lumia
1978, Open-File Report 78-348
As a supplement to a 1975 report, titled "Floodflow Characteristics at Proposed Bridge Site on Mohawk River, Whitesboro, New York," by Bernard Dunn (U.S. Geological. Survey open-file report), in which the hydraulic effects of two alternative highway plans during a large-magnitude flood were evaluated, a hydraulic analysis was made for...
