Hydrologic and water-quality data for streams and impoundments in the Coteau des Prairies-Upper Minnesota River basin, 1979-84
C.J. Smith, G. A. Payne, L. H. Tornes
1990, Open-File Report 88-84
Water-quality and streamflow data were collected in the Coteau des Prairies region of southwestern Minnesota and eastern South Dakota from 1979- 84. Data were collected to (1) document the water-quality characteristics of streams and impoundments in the Coteau area, (2) predict the impact of proposed impoundments, (3) define the amount...
Geohydrology and simulation of ground-water flow in the carbonate rocks of the Valley Creek basin, eastern Chester County, Pennsylvania
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...
Effects of impoundments on water quality of streams in the Coteau des Prairies: Upper Minnesota River basin
C.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...
Principal facts for gravity stations in the Elko, Steptoe Valley, Coyote Spring Valley, and Sheep Range areas, eastern and southern Nevada
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...
Hydrology of the Floridan aquifer system in east-central Florida
C. H. Tibbals
1990, Professional Paper 1403-E
No abstract available....
Mineral resources of the Elkhorn Wilderness Study Area, Broadwater and Jefferson Counties, Montana
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...
The Sitkoh Bay alkalic plutonic suite: Silurian or older alkalic magmatism on eastern Chichagof Island, southeastern Alaska
A. B. Ford, D. A. Brew, R. A. Loney
1990, Open-File Report 90-297
No abstract available....
Multichannel seismic-reflection data collected in 1982 in the eastern Chukchi Sea
Arthur Grantz, R. W. Sliter, D. M. Mann, S. D. May
1990, Open-File Report 90-273
No abstract available....
Earthquake-induced liquefaction features in the coastal setting of South Carolina and in the fluvial setting of the New Madrid seismic zone
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...
Summary results of the Glens Falls CUSMAP project, New York, Vermont, and New Hampshire
John F. Slack
1990, Bulletin 1887
No abstract available....
The Coalinga, California, earthquake of May 2, 1983
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...
Road guide to volcanic deposits of Mount St. Helens and vicinity, Washington
Michael P. Doukas
1990, Bulletin 1859
Mount St. Helens, the most recently active and most intensively studied Cascades volcano, is in southwestern Washington. The volcano is a superb outdoor laboratory for studying volcanic processes, deposits of observed events, and deposits whose origins are inferred by classic geologic techniques, including analogy to recent deposits. During the past...
Geohydrology and water quality of the Roubidoux Aquifer, northeastern Oklahoma
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...
Regional evaluation of hydrologic factors and effects of pumping, St Peter-Jordan aquifer, Iowa
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...
Analytical results and sample locality map of the nonmagnetic, heavy-mineral-concentrate samples collected from the eastern part of the Lime Hills quadrangle, Alaska
M.J. Malcolm, M. S. Allen, K. E. Slaughter
1990, Open-File Report 90-68
No abstract available....
Hydrologic characteristics of the Great Salt Lake, Utah: 1847-1986
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...
Mineralogical data and sample locality map of nonmagnetic, heavy-mineral-concentrate samples collected from the eastern part of the Lime Hills quadrangle, Alaska
M. S. Allen, K. E. Slaughter
1990, Open-File Report 90-67
No abstract available....
Correlation chart of lower and upper Cretaceous Blackleaf Formation, Lima Peaks area to eastern Pioneer Mountains, southwestern Montana
T. S. Dyman, R. G. Tysdal
1990, Miscellaneous Field Studies Map 2119
No abstract available....
Fractal properties of tremor and gas piston events observed at Kilauea Volcano, Hawaii
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...
Geology, geophysics, and geochronology of the Manson impact structure
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...
An apparent shear zone trending north‐northwest across the Mojave Desert into Owens Valley, eastern California
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...
The late Cenozoic evolution of the Tuolumne River, central Sierra Nevada, California
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,...
The 40Ar/39Ar thermochronology of the eastern Mojave Desert, California, and adjacent western Arizona with implications for the evolution of metamorphic core complexes
D.A. Foster, T.M. Harrison, C. F. Miller, Keith A. Howard
1990, Journal of Geophysical Research B: Solid Earth (95) 20005-20024
Mesozoic thickening and Cenozoic extension resulted in the juxtaposition of upper and middle crustal rocks in the eastern Mojave Desert, southeastern California and western Arizona. The application of 40Ar/39Ar thermochronology to rocks in this region provides information about the timing and nature of thrusting, plutonism, metamorphism, denudation, and detachment faulting. The 40Ar/39Ar...
Forecasting damaging earthquakes in the central and eastern United States
S.P. Nishenko, G. A. Bollinger
1990, Science (249) 1412-1416
Analysis of seismograph network data, earthquake catalogs from 1727 to 1982, and paleoseismic data for the central and eastern United States indicate that the Poisson probability of a damaging earthquake (magnitude ≥ 6.0) occurring during the next 30 years is at a moderate to high level (0.4 to 0.6). When...
The Yucca Mountain project: Another perspective
Isaac J. Winograd
1990, Environmental Science and Technology (24) 1291-1293
No abstract available....
