Telluric traverse location map and profiles for Double Hot Springs Known Geothermal Resource Area, Nevada
R. Michael Senterfit, Donald B. Hoover, Karen R. Christopherson
1978, Open-File Report 78-106-A
No abstract available. ...
Audio-magnetotelluric data log and station location map for the Glamis Known Geothermal Resource Area, California
R. Michael Senterfit, William D. Heran
1978, Open-File Report 78-105-C
No abstract available. ...
Coal resource occurrence maps of the Schneider Ridge Quadrangle, Carbon County, Wyoming
Texas Instruments Incorporated
1978, Open-File Report 78-59
Geologic map of the Ketchikan and Prince Rupert quadrangles, Alaska
Henry C. Berg, Raymond L. Elliott, James G. Smith, R. D. Koch
1978, Open-File Report 78-73-A
No abstract available....
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...
A laboratory control system using the PDP 1103 microprocessor
David A. Lockner, John D. Weeks, J.D. Byerlee
1978, Open-File Report 78-125
Water-resources investigations of the U.S. Geological Survey in Wyoming, fiscal year 1978
F. C. Boner
1978, Open-File Report 78-239
This report contains lists of streamflow and reservoir stations, peak-flow partial-record stations, chemical-quality stations, sediment stations, and observation wells where water levels are measured in Wyoming. The locations of the basic-data sites are shown on maps. Thirty-two water-resources appraisal projects in Wyoming are also described, including many that are related...
Regional and local networks of horizontal control, Cerro Prieto geothermal area, Mexico
Bruce L. Massey
1978, Open-File Report 78-929
The Cerro Prieto geothermal area in the Mexicali Valley 30 km southeast of Mexicali, Baja California, is probably deforming due to (1) the extraction of large volumes of steam and hot water, and (2) active tectonism. Two networks of precise horizontal control were established in Mexicali Valley by the U.S....
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...
Terrain-analysis procedures for modeling radar backscatter
Gerald G. Schaber, Richard J. Pike, Graydon Lennis Berlin
1978, Open-File Report 79-1088
The collection and analysis of detailed information on the surface of natural terrain are important aspects of radar-backscattering modeling. Radar is especially sensitive to surface-relief changes in the millimeter- to-decimeter scale four conventional K-band (~1-cm wavelength) to L-band (~25-cm wavelength) radar systems. Surface roughness statistics that characterize these changes in...
Interim report on streamflow, sediment discharge, and water quality in the Calabazas Creek Basin, Santa Clara County, California
J. M. Knott, G.L. Pederson, Robert F. Middelburg
1978, Water-Resources Investigations Report 78-2
Streamflow, sediment-discharge, and water-quality data are being collected in the Calabazas Creek basin, Santa Clara County, Calif., to determine annual water and sediment discharge at base-line conditions that are representative of a basin prior to urbanization. Results of the first 3 years of the study (1973-75) are given in this...
Generalized geologic map of the Rolla 1° x 2° quadrangle, Missouri and Illinois with emphasis on Precambrian and Cambrian Lamotte Sandstone
Walden P. Pratt
1978, Open-File Report 78-560
No abstract available....
Natural gas: A perspective on resource availability
Charles D. Masters
1978, Open-File Report 78-188
No abstract available....
U.S. Geological Survey Oil and Gas Resource Investigations Program
Richard F. Mast
1978, Open-File Report 78-303
One and two dimension seismic modeling
Myung W. Lee
1978, Open-File Report 78-270
Preliminary catalog of earthquakes in northern Imperial Valley, California, January 1, 1977 to March 31, 1977
Madeline Schnapp, Gary S. Fuis
1978, Open-File Report 78-74
The northern section of the Imperial Valley region in Southern California is an area of known geothermal resources and an area of high seismicity. To study in detail the relationship between geothermal areas and earthquakes, the U.S. Geological Survey has been monitoring seismicity in the Imperial Valley with a sixteen...
Direct solution algorithm for the two-dimensional ground-water flow model
S. P. Larson
1978, Open-File Report 79-202
Hydrogeology of the observation well site at the United States Geological Survey National Center, Reston, Virginia
J. D. Larson
1978, Open-File Report 78-144
The U. S. Geological Survey's National Center is on a 105-acre tract straddling rocks of two distinct types. These are pelitic schists of late Precambrian and early Paleozoic age; and sandstone, shale, siltstone, and conglomerate of Triassic age. Within the Triassic part is a diabase dike and an associated contact...
Ground-water availability in the Hayes-Red Willow, Frenchman, and Meeker-Driftwood irrigation districts, southwest Nebraska
E.G. Lappala, P.F. Hemphill, R.E. Booker
1978, Open-File Report 78-461
Surface-water supplies are diminishing in the Hitchcock-Red Willow and Frenchman Valley Irrigation Districts in southwest Nebraska. Stream depletions due to ground-water withdrawals upstream from Enders Reservoir (northwest of the study area) have resulted in a shortage of about 8,700 acre-feet per year. The availability of ground water to supply part...
Preparation of a geologic photo map and hydrologic study of the Yemen Arab Republic
Maurice J. Grolier, M. Ibrahim, W.C. Overstreet, G. Chase Tibbitts, D.F. Davidson
1978, Open-File Report 78-770
A summary of niobium and rare earth localities from Ha'il and other areas in western Saudi Arabia: a preliminary study
John J. Matzko, Mohammed Ibne Naqvi
1978, Open-File Report 78-773
Investigations in 1965 located veins containing radioactive material in the Halaban Group on the east side of a granite pluton at Jabal Aja near Ha'il. Later study extended the known area of radioactivity to a total length of about 30 km. Mineralogic studies indicated that the samples were low in...
Effects of urban development on the flood-flow characteristics of the Walnut Creek Basin, Des Moines Metropolitan area, Iowa
Oscar G. Lara
1978, Water-Resources Investigations Report 78-11
This report deals with the probable impact of urban development on the magnitude and frequency of flooding in the lower reach of the Walnut creek Basin.Stream-modeling techniques, which include complete definition of unit hydroqraphs and precipitation loss-rate criteria, were utilized to evaluate the effects of urban development as measured by...
Hydrologic processes and radionuclide distribution in a cavity and chimney produced by the Cannikin nuclear explosion, Amchitka Island, Alaska
H.C. Claassen
1978, Professional Paper 712-D
No abstract available....
Principal uranium deposits of the world
Virginia P. Byers
1978, Open-File Report 78-1008
The geology of the principal world uranium deposits that have identified uranium reserves and production, as described in published literature, is summarized briefly, including such features as type of deposit, host rock and age of host roc, age of mineralization, depositional environment, and mineralogy. The deposits are located on four maps...
Pennsylvanian (Upper Carboniferous) system of Wyoming
Edwin K. Maughan
1978, Open-File Report 78-377
Pennsylvanian rocks in Wyoming comprise two stratigraphic sequences bounded by regional unconformities. Red mudstone and limestone characterize the strata in the lower sequence, and sandstone and dolomite characterize the strata in the upper sequence. Initial deposits of the lower sequence are-red mudstone probably of no older age than about middle...
