Probability of one or more M ≥7 earthquakes in southern California in 30 years
James C. Savage
1994, Geophysical Research Letters (21) 313-315
Eight earthquakes of magnitude greater than or equal to seven have occurred in southern California in the past 200 years. If one assumes that such events are the product of a Poisson process, the probability of one or more earthquakes of magnitude seven or larger in southern...
Data for four drill holes, Mount Margaret copper-molybdenum-gold deposit, Skamania County, Washington
M.A. Chaffee
1994, Open-File Report 94-2-B
Field trip guide to the southern East Humboldt Range and northern Currie Hills, Northeast Nevada; age and style of attenuation faults in Permian and Triassic rocks
C.H. Thorman, W. E. Brooks
1994, Open-File Report 94-439
Irrigation water supply and demand data for 1976, 1980, and 1984 for the western San Joaquin Valley, California
W. E. Templin, T.C. Haltom
1994, Open-File Report 94-335
This report presents the irrigation water supply and demand data for 1976, 1980, and 1984 for 32 water districts in the western San Joaquin Valley, California. Data are provided for each water district or each of the three years if the data were available. The complete data base is given...
Geodetic slip rate for the eastern California shear zone and the recurrence time of Mojave desert earthquakes
J. Sauber, W. Thatcher, S.C. Solomon, M. Lisowski
1994, Nature (367) 264-266
Where the San Andreas fault passes along the southwestern margin of the Mojave desert, it exhibits a large change in trend, and the deformation associated with the Pacific/North American plate boundary is distributed broadly over a complex shear zone. The importance of understanding the partitioning of strain across this region,...
A comparison of change detection methods using multispectral scanner data
Paul M. Seevers, Brenda K. Jones, Zhicheng Qiu, Yutong Liu
1994, Open-File Report 93-355
Change detection methods were investigated as a cooperative activity between the U.S. Geological Survey and the National Bureau of Surveying and Mapping, People's Republic of China. Subtraction of band 2, band 3, normalized difference vegetation index, and tasseled cap bands 1 and 2 data from two multispectral scanner images were...
Hydrogeology and aquifer test of the San Andres-Glorieta aquifer on the southwest part of the Zuni Indian Reservation, Cibola County, New Mexico
T. M. Crouch
1994, Water-Resources Investigations Report 94-4033
A large-yield aquifer test of the confined San Andres-Glorieta aquifer was conducted in 1988 to estimate aquifer properties and evaluate the potential effects of large-scale development on the aquifer by pumping from a cave-fracture system on the southwest part of the Zuni Indian Reservation. The San Andres-Glorieta aquifer underlies...
Geologic map of the Milligan Mountain quadrangle, Catron County, New Mexico
James Clifford Ratte, William C. McIntosh, Dana Bove
1994, Geologic Quadrangle 1736
Out-of-print maps
Water Resources Division, U.S. Geological Survey
1994, Fact Sheet 034-94
Recent exploration and development of geothermal energy resources in the Escalante desert region, Southwestern Utah
Robert E. Blackett, Howard P. Ross
1994, Bulletin. Geothermal Resources Council (23) 3-20
Development of geothermal resources in southwest Utah's Sevier thermal area continued in the early 1990s with expansion of existing power-generation facilities. Completion of the Bud L. Bonnett geothermal power plant at the Cove Fort-Sulphurdale geothermal area brought total power generation capacity of the facility to 13.5 MWe (gross). At Cove...
Review of literature on the testing of point-velocity current meters
K.G. Thibodeaux
1994, Open-File Report 94-123
The U.S. Geological Survey is in the process of evaluating point-velocity current meters. As part of this evaluation process, a review of the literature pertaining to the testing of point-velocity current meters was conducted. A listing of current-meter testing found in the literature was compiled and is grouped according to...
Hydrogeology and hydrologic system of Pinal Creek Basin, Gila County, Arizona
C.C. Neaville, J. G. Brown
1994, Water-Resources Investigations Report 93-4212
Acidic water that contains elevated concentrations of metals has contaminated a stream and alluvial aquifer in a mining district near Globe, Arizona. The contaminated aquifer is a narrow layer of unconsolidated alluvium along Miami Wash and Pinal Creek. The alluvium overlies basin fill, which extends throughout most of the...
Relationships between 222Rn dissolved in ground water supplies and indoor 222Rn concentrations in some Colorado front range houses
P. F. Folger, P. Nyberg, R. B. Wanty, E. Poeter
1994, Health Physics (67) 245-253
Indoor 222Rn concentrations were measured in 37 houses with alpha track detectors placed in water-use rooms near water sources (bathrooms, laundry rooms, and kitchens) and in non-water-use living rooms, dining rooms, and bedrooms away from water sources. Results show that relative contributions of 222Rn to indoor air from water use...
Prediction of long-term salinity in San Francisco Bay during drought conditions
R.J. Uncles, D. H. Peterson, D.R. Cayan
1994, Conference Paper, Proceedings of an International Society of Geographer and Engineers
No abstract available....
Effects of flow duration on local scour at bridge piers in New York
Gerard K. Butch, Richard Lumia
1994, Conference Paper, Proceedings - National Conference on Hydraulic Engineering
The relation of local scour to the duration of high flows and other hydraulic properties is being studied at 31 bridge sites in New York State. Clear-water scour is common at most of the sites, and local-scour holes that formed during prolonged high flows did not refill during flow recessions....
Quaternary stratigraphy and paleoceanography of the Canada Basin, western Arctic Ocean
Richard Z. Poore, S. E. Ishman, R. L. Phillips, D. H. McNeil
1994, Bulletin 2080
Surface-water-quality assessment of the upper Illinois River Basin in Illinois, Indiana, and Wisconsin; data on agricultural organic compounds, nutrients, and sediment in water, 1988-90
D. J. Sullivan, P. J. Terrio
1994, Open-File Report 93-421
This report describes the sampling design and methods and presents data collected to determine the distribution of agricultural organic compounds, nutrients, and sediment in selected areas of the upper Illinois River Basin as part of the National Water-Quality Assessment program. Four stations in small watersheds (two urban, two agricultural) were...
Stratigraphic evidence of desertification in the west-central Great Plains within the past 1000 yr
R.F. Madole
1994, Geology (22) 483-486
Stratigraphic and geomorphic relations, archeological data, and eight radiocarbon ages at five widely scattered localities in northeastern Colorado indicate that eolian sand was mobilized over broad areas within the past 1000 yr. The mobilization began after 1 ka, was episodic, and ended at...
Shorebirds in western North America: Late 1800s to late 1900s
Gary W. Page, Robert E. Gill Jr.
Joseph R. Jehl Jr., Ned K. Johnson, editor(s)
1994, Book chapter, A century of avifaunal change in western North America (Studies in Avian Biology no. 15)
Only anecdotal information is available to assess whether populations of the 47 shorebird species that breed or winter west of the Rocky Mountains changed in size or distribution during the past century. Unregulated hunting from 1870 to 1927 reduced populations of several species, at least temporarily, and was a factor...
Problems with indirect determinations of peak streamflows in steep, desert stream channels
Patrick A. Glancy, Rhea P. Williams
1994, Conference Paper, Proceedings - National Conference on Hydraulic Engineering
Many peak streamflow values used in flood analyses for desert areas are derived using the Manning equation. Data used in the equation are collected after the flow has subsided, and peak flow is thereby determined indirectly. Most measurement problems and associated errors in peak-flow determinations result from (1) channel erosion...
Sources of dissolved salts in the central Murray Basin, Australia
B.F. Jones, J.S. Hanor, W.R. Evans
1994, Chemical Geology (111) 135-154
Large areas of the Australian continent contain scattered saline lakes underlain by shallow saline groundwaters of regional extent and debated origin. The normative salt composition of subsurface pore fluids extracted by squeezing cores collected during deep drilling at Piangil West 2 in the central Murray Basin in southeastern Australia, and...
Preliminary geologic map of the Snow Gulch quadrangle, Humboldt and Lander counties, Nevada
T. G. Theodore, B.L. Murchey, R. A. Hanger, E. E. Strong, R. T. Ashinhurst
1994, Open-File Report 94-436
No abstract available....
Geoenvironmental models of mineral deposits, and geology-based mineral-environmental assessments of public lands
G.S. Plumlee, K. S. Smith, W. H. Ficklin
1994, Open-File Report 94-203
Determination of alachlor and its sulfonic acid metabolite in water by solid-phase extraction and enzyme-linked immunosorbent assay
D.S. Aga, E.M. Thurman, M.L. Pomes
1994, Analytical Chemistry (66) 1495-1499
No abstract available. ...
Routine processing of seismic hypocentral data using personal computers
T.L. Murray
1994, Open-File Report 94-170-A
