M. S. Allen, K. E. Slaughter
1990, Open-File Report 90-67
No abstract available....
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Page 318, results 7926 - 7950
Publication Extents
Not all publications have extents, not all extents are completely accurateC.J. Smith, G. A. Payne, L. H. Tornes
1990, Water-Resources Investigations Report 90-4033
Water-quality and streamflow data were collected in the Coteau des Prairies region of southwestern Minnesota and eastern South Dakota to document the water-quality characteristics of streams and impoundments in the Coteau, and to predict the effect of proposed impoundments on the quality of water in Coteau streams. Reconnaissance data collection at...
W. L. Cunningham, R.L. Jones
1990, Water-Resources Investigations Report 90-4136
Two small watersheds in eastern Ohio that were surface mined for coal and reclaimed were studied during 1986-89. Water-level and water-quality data were compared with similar data collected during previous investigations conducted during 1976-83 to determine long-term effects of surface mining on the hydrologic system. Before mining, the watersheds were...
Ted Arnow, Doyle W. Stephens
1990, Water Supply Paper 2332
The Great Salt Lake in Utah is a large body of water bordered on the west by barren desert and on the east by a major metropolitan area. It is the fourth largest terminal lake in the world, covering about 2,300 square miles in 1986. Since its historic low elevation...
M.J. Malcolm, M. S. Allen, K. E. Slaughter
1990, Open-File Report 90-68
No abstract available....
S. F. Obermeier, R. B. Jacobson, J. P. Smoot, R.E. Weems, G. S. Gohn, J.E. Monroe, D.S. Powars
1990, Professional Paper 1504
Many types of liquefaction-related features (sand blows, fissures, lateral spreads, dikes, and sills) have been induced by earthquakes in coastal South Carolina and in the New Madrid seismic zone in the Central United States. In addition, abundant features of unknown and nonseismic origin are present. Geologic criteria for interpreting an...
William R. Greenwood, Steve Ludington, William R. Miller, William F. Hanna, Karen J. Wenrich, Vivian J. Suits, John B. McHugh
1990, Bulletin 1805
The Elkhorn Wilderness Study Area in west-central Montana has a moderate to high potential for resources of porphyry-type copper and molybdenum in the western part of the area, and a moderate to high potential for resources of gold, silver, lead, and zinc in replacement and vein deposits in the eastern...
R.M. Samater, R.P. Christian, P.R. Johnson, A. A. Bookstrom
1990, Open-File Report 90-285
Geochemical data were analyzed for 244 wadi-sediment samples in an attempt to locate gold exploration targets in late Proterozoic metasedimentary and metavolcanic rocks in the Ad Darb area of the southern Arabian Shield. The target was gold mineralization in high-alumina alteration zones of the type that occurs in the Carolina...
M. R. Burkart, Robert Buchmiller
1990, Water-Resources Investigations Report 90-4009
The St. Peter-Jordan aquifer includes the Cambrian Jordan Sandstone and the overlying Ordovician Prairie du Chien Group and St. Peter Sandstone. The aquifer is present throughout Iowa and is confined beneath other aquifers in much of the State. Information on the aquifer available from drillers and contractors, provided estimates of...
L. B. House
1990, Open-File Report 89-52
A reconnaissance study was conducted of 22 streams tributary to Green Bay to determine whether any of the streams contribute toxic substances to the bay. This effort was part of a comprehensive investigation of Green Bay funded by the U.S. Environmental Protection Agency, Great Lakes National Program Office. The U.S. Geological...
A. B. Ford, D. A. Brew, R. A. Loney
1990, Open-File Report 90-297
No abstract available....
Scott C. Christenson, David L. Parkhurst, Roy W. Fairchild
1990, Open-File Report 90-570
The Roubidoux aquifer is an important source of freshwater for public supplies, commerce, industry, and rural water districts in northeastern Oklahoma. Ground-water withdrawals from the aquifer in 1981 were estimated to be 4.8 million gallons per day, of which about 90 percent was withdrawn in Ottawa County. Wells drilled at...
G. N. Delin
1990, Water-Resources Investigations Report 88-4124
Confined-drift aquifers in six aquifer zones identified in a 1,300-square-mile area of west-central Minnesota near Brooten and Belgrade range in thickness from 5 to 110 feet. Transmissivities generally range from 500 to 10,000 feet squared per day, and theoretical well yields generally range from 100 to 900 gallons per minute. Regional...
R. A. Sloto
1990, Water-Resources Investigations Report 89-4169
Sixty-eight percent of the 22.6-square-mile Valley Creek basin is underlain by Cambrian and Ordovician limestone and dolomite. Ground water flows through a network of interconnected secondary openings; primary porosity is virtually nonexistent. Some of these openings have been enlarged by solution. Secondary porosity and permeability exhibit great spatial variability, and...
Arthur Grantz, R. W. Sliter, D. M. Mann, S. D. May
1990, Open-File Report 90-273
No abstract available....
C. H. Tibbals
1990, Professional Paper 1403-E
No abstract available....
Michael J. Rymer, William L. Ellsworth, editor(s)
1990, Professional Paper 1487
At 2342 G.m.t. May 2, 1983, a magnitude (ML) 6.7 earthquake occurred about 12 km northeast of the town of Coalinga, approximately halfway between Los Angeles and San Francisco. The shock was felt from Los Angeles to 200 km north of Sacramento and as far east as Las Vegas. Unlike...
D.L. Berger, D. H. Schaefer, E. A. Frick
1990, Open-File Report 89-30
Principal facts for 537 gravity stations in the carbonate-rock province of eastern and southern Nevada are tabulated and presented. The gravity data were collected in support of groundwater studies in several valleys. The study areas include the Elko area, northern Steptoe Valley, Coyote Spring Valley, and the western Sheep Range...
C. A. Kaehler
1990, Water-Resources Investigations Report 89-4162
Sediments that fill the Albuquerque-Belen basin in central New Mexico comprise an aquifer that supplies water to approximately one-third the population of the State. Analysis of driller 's logs and geophysical logs indicate that an area of fine-grained deposits generally underlies the west-central part of the basin. Coarse-grained deposits are...
Jane R. Eggleston, M. Devereux Carter, James C. Cobb
1990, Circular 1055
Coal accounts for a major portion of our Nation's energy supply in projections for the future. A demonstrated reserve base of more than 475 billion short tons, as the Department of Energy currently estimates, indicates that, on the basis of today's rate of consumption, the United States has enough coal...
T. S. Dyman, R. G. Tysdal
1990, Miscellaneous Field Studies Map 2119
No abstract available....
B. Chouet, H. R. Shaw
1990, Journal of Geophysical Research (96) 10177-10189
Studies the fractal properties of shallow volcanic tremor and gas piston events associated with magma degassing at Kilauea Volcano, Hawaii, using data from two dense short-baseline arrays of seismographs deployed near the active crater of Puu Oo on the east rift of the volcano. The existence of a categorically stable...
Jack B. Hartung, Michael J. Kunk, R. R. Anderson
1990, GSA Special Papers (247) 207-221
A problem with the impact hypothesis for the Cretaceous/Tertiary (K/T) mass extinction is the apparent absence of an identifiable impact site. The Manson impact structure is a candidate site because of its size (the largest such structure recognized in the United States); in addition, the largest and most abundant shocked...
James C. Savage, Michael Lisowski, W.H. Prescott
1990, Geophysical Research Letters (17) 2113-2116
Strain rates measured at four geodetic networks in eastern California situated between northern Owens Valley and the Transverse Ranges along a small circle drawn about the Pacific‐North America pole of rotation are remarkably consistent. Each exhibits 0.14 μrad/yr simple right‐lateral engineering‐shear‐strain accumulation across the local vertical plane tangent to the...
N.K. Huber
1990, GSA Bulletin (102) 102-115
Erosional remnants of volcanic rock deposited in a lO-m.y.-old channel of the Tuolumne River permit its partial reconstruction. Projection of the reconstructed channel west to the Central Valley and east to the range crest, together with several assumptions about the position of the hinge line and changes in channel gradient,...