Water Resources Division, U.S. Geological Survey
1978, Open-File Report 78-738
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Page 5238, results 130926 - 130950
Publication Extents
Not all publications have extents, not all extents are completely accurateJoel 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...
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...
L. W. Ward, D.R. Lawrence, B. W. Blackwelder
1978, Bulletin 1457-F
Water Resources Division, U.S. Geological Survey
1978, Open-File Report 78-740
Water Resources Division, U.S. Geological Survey
1978, Open-File Report 78-743
Water Resources Division, U.S. Geological Survey
1978, Open-File Report 78-746
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...
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...
Gwendolyn Werth Luttrell
1978, Open-File Report 78-152
Gold, silver, copper, lead, zinc, pyrite, tin, cobalt, molybdenum, tungsten, barite, and rare-earths have been mined in North Carolina. Gold, with by-product silver, occurs in veins and mineralized shear zones in metamorphic rocks of the Piedmont province and in placers derived from these deposits. Copper occurs with complex sulfide ores...
Gregg C. Lusby
1978, Open-File Report 78-289
Changes in runoff and sediment yield caused by changing sagebrush cover to grass cover were studied at four small watersheds in western Colorado during a 9-year period. Measurements of runoff and sediment yield from four watersheds were made for 3 years, at which time two watersheds were plowed and seeded...
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...
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...
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...
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...
Richard F. Mast
1978, Open-File Report 78-303
G. A. Irwin, Gerald T. Losey
1978, Water-Resources Investigations Report 79-1
Runoff from a rural highway bridge on U.S. 27 near Tallahassee, Florida, was found to have an insignificant water-quality loading impact on the Ochlockonee River. Potential annual-runoff loads on the bridge surface for virtually all constituents studied were less than one percent of those transported by the river at the...
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...
Don R. Mabey
1978, Open-File Report 78-382
James George Palacas
1978, Open-File Report 78-140
Analyses of 134 core samples from the South Florida Basin show that the carbonates of Comanchean age are relatively richer in average organic carbon (0.41 percent) than those of Coahuilan age (0.28 percent), Gulfian age (0.18 percent) and Paleocene age (0.20 percent). They are also nearly twice as rich as...
David A. Lockner, John D. Weeks, J.D. Byerlee
1978, Open-File Report 78-125
S. P. Larson
1978, Open-File Report 79-202
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...
H.C. Claassen
1978, Professional Paper 712-D
No abstract available....
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...