Mineral resource potential map of the Benton Range Roadless Area, Mono County, California
James L. Donahoe, Edwin D. McKee, Richard L. Rains, Donald J. Barnes, Harry W. Campbell, David K. Denton Jr., Stephen R. Iverson, Rodney E. Jeske, Scott A. Stebbins
1983, Miscellaneous Field Studies Map 1317-C
Tungsten-bearing rocks in the Benton Range Roadless Area occur in tactite lenses within the Paleozoic metasedimentary units that surround and are intruded by Triassic granodiorite of the Benton Range. High anomalous tungsten values were found in the southern part of the study area. Quartz-vein deposits with copper, lead, zinc, and...
Computer program modifications of Open-file report 82-1065; a comprehensive system for interpreting seismic-refraction and arrival-time data using interactive computer methods
Hans D. Ackermann, Leroy W. Pankratz, Danny A. Dansereau
1983, Open-File Report 83-604
The computer programs published in Open-File Report 82-1065, A comprehensive system for interpreting seismic-refraction arrival-time data using interactive computer methods (Ackermann, Pankratz, and Dansereau, 1982), have been modified to run on a mini-computer. The new version uses approximately 1/10 of the memory of the initial version, is more efficient and...
Montana; basic data for thermal springs and wells as recorded in Geotherm
James D. Bliss
1983, Open-File Report 83-432
Changes in ground-water withdrawals, water levels, and quality of water occurred in the artesian aquifers of the Sevier Desert, Utah during 1963-81. Ground-water withdrawals increased from an average of 9,500 acre-feet (11.7 cubic hectometers) per year between 1951 and 1963 to an average of 27,500 acre-feet (33.9 cubic hectometers) per...
Application of Gauss algorithm and Monte Carlo simulation to the identification of aquifer parameters
Timothy J. Durbin
1983, Open-File Report 81-688
The Gauss optimization technique can be used to identify the parameters of a model of a groundwater system for which the parameter identification problem is formulated as a least squares comparison between the response of the prototype and the response of the model. Unavoidable uncertainty in the true stress on...
Geohydrology and model analysis of the stream-aquifer system along the Arkansas River in Kearny and Finney counties, southwestern Kansas
L. E. Dunlap, Richard J. Lindgren, C. G. Sauer
1983, Open-File Report 83-222
A study was made, in cooperation with the Division of Water Resources, Kansas State Board of Agriculture, to determine geohydrologic conditions in an area comprising nearly 850,000 acres along the Arkansas River valley in Kearny and Finney Counties, southwestern Kansas. The Arkansas River meanders atop and interacts hydraulically with the...
Effects of sanitary sewers on ground-water levels and streams in Nassau and Suffolk Counties, New York, part 1: Geohydrology, modeling strategy, and regional evaluation
T. E. Reilly, H. T. Buxton, O.L. Franke, R. L. Wait
1983, Water-Resources Investigations Report 82-4045
A computer simulation of Long Island 's regional groundwater system has been used to evaluate the effects that new-installed sewers will have on ground-water levels. Results indicate maximum water-table decliners of as much as up to 18 feet in central Nassau County and about 9 feet in Suffolk County. Total...
Front-tracking model for convective transport in flowing ground water
S. P. Garabedian, Leonard F. Konikow
1983, Water-Resources Investigations Report 83-4034
A finite-difference numerical model that simulates the convective transport of water or tracer particles through porous media is described. It can be applied to one- or two-dimensional problems involving either steady-state or transient flow. The model tracks representative water or tracer particles, initially located along specified lines, as they move...
Determination of dissolved aluminum in water samples
A.A. Afifi
1983, Water-Resources Investigations Report 82-4018
A technique has been modified for determination of a wide range of concentrations of dissolved aluminum (Al) in water and has been tested. In this technique, aluminum is complexed with 8-hydroxyquinoline at pH 8.3 to minimize interferences, then extracted with methyl isobutyl ketone (MIBK). The extract is analyzed colorimetrically at...
A simple Bouguer gravity anomaly map of southwestern Saudi Arabia and an initial interpretation
M. E. Gettings
1983, Open-File Report 83-789
Approximately 2,200 gravity stations on a 10-km2 grid were used to construct a simple Bouguer gravity anomaly map at 1:2,000,000 scale along a 150-km-wide by 850-km-long strip of the Arabian Peninsula from Sanam, southwest of Ar Riyad, through the Farasan Islands and including offshore islands, the coastal plain, and the...
Ground-water resources in the Hood Basin, Oregon
Stephen J. Grady
1983, Water-Resources Investigations Report 81-1108
The Hood Basin, an area of 1,035 square miles in north-central Oregon, includes the drainage basins of all tributaries of the Columbia River between Eagle Creek and Fifteenmile Creek. The physical characteristics and climate of the basin are diverse. The Wasco subarea, in the eastern half of the basin, has...
A Flood model for the Tug Fork basin, Kentucky, Virginia, and West Virginia
W.H. Doyle, P.B. Curwick, K.M. Flynn
1983, Water-Resources Investigations Report 83-4014
Assessment of gray whale feeding grounds and sea floor interaction in the northeastern Bering Sea
C.H. Nelson, K.R. Johnson, John H. Barber
1983, Open-File Report 83-727
A dense ampeliscid amphipod community in Chirikov Basin and around St. Lawrence Island in the northeastern Bering Sea has been outlined by summarizing biological studies, analyzing bioturbation in sediment samples, and examining sea floor photos and videotapes. The amphipod population is associated with a homogeneous, relict fine-grained sand body 0.10-1.5...
Summary of workshops concerning regional seismic source zones of parts of the conterminous United States, convened by the U.S. Geological Survey, 1979-1980, Golden, Colorado
P.C. Thenhaus, F. A. McKeown, R.C. Bucknam, D. C. Ross, R.E. Anderson, W. P. Irwin, D. P. Russ, W.H. Diment
Paul C. Thenhaus, editor(s)
1983, Circular 898
Workshops were convened by the U.S. Geological Survey to obtain the latest information and concepts relative to defining seismic source zones for five regions of the United States. The zones, with some modifications, have been used in preparation of new national probabilistic ground motion hazard maps by the U.S. Geological...
Mineral deposit grade-tonnage models
Dan L. Mosier
Donald A. Singer, editor(s)
1983, Open-File Report 83-623
Hydrogeologic evaluation of selected stratified-drift deposits in Connecticut
S. J. Grady, E. H. Handman
1983, Water-Resources Investigations Report 83-4010
Test borings at 28 sites and seismic-refraction profiles at 16 sites provide data on the saturated thickness and grain-size characteristics of stratified-drift deposits in five areas of Connecticut. These data, together with information on the areal extent of the deposits and their proximity to sources of induced recharge, can be...
Petroleum and mineral resources of Antarctica
Karel Kovar
John Charles Behrendt, editor(s)
1983, Circular 909
No known petroleum or mineral resources occur in Antarctica. The data on these subjects have been collected, mainly since the IGY (International Geophysical Year), 1957-58, as a part of other research carried out by geologists and geophysicists from a number of countries. Specific resource-related studies have not been made. Wright...
Water quality of Lake Arlington on Village Creek, north-central Texas; 1973 to 1981
Freeman L. Andrews, Willard J. Gibbons
1983, Water-Resources Investigations Report 83-4196
Water in Lake Arlington on Village Creek in north-central Texas had volume-weighted average concentrations of less than 240 milligrams per liter of dissolved solids, less than 30 milligrams per liter of dissolved chloride, and less than 40 milligrams per liter of dissolved sulfate between January 29, 1973, and August 20,...
Estimation of nonpoint sources of phosphorus for lakes in the Puget Sound region, Washington
Robert J. Gilliom
1983, Open-File Report 82-161
Control of eutrophication of lakes in watersheds undergoing development is facilitated by estimates of the amounts of phosphorus (P) that reach the lakes from areas under various types of land use. Using a mass-balance model, the writer calculated P loadings from present-day P concentrations measured in lake water and from...
Ground-water contamination at Wurtsmith Air Force Base, Michigan
J. R. Stark, T. R. Cummings, F. R. Twenter
1983, Water-Resources Investigations Report 83-4002
A sand and gravel aquifer of glacial origin underlies Wurtsmith Air Force Base in northeastern lower Michigan. The aquifer overlies a thick clay layer at an average depth of 65 feet. The water table is about 10 feet below land surface in the western part of the Base and about...
Hypermag: An interactive, two-dimensional gravity and magnetic modeling program
R. W. Saltus, Richard J. Blakely
1983, Open-File Report 83-241
No abstract available. ...
Appraisal of water-quality conditions, lower Black River, Windsor County, Vermont
K. W. Toppin
1983, Water-Resources Investigations Report 82-4116
Six hydroelectric power dams are planned along a 22-mile reach of the lower Black River in southeastern Windsor County, Vermont. Data were collected at 10 stations, during water years 1977-81, to appraise quality conditions before construction. Average specific conductance of Black River is 101 micromhos indicating low concentrations of dissolved...
Hydrologic conditions in the Wheatland Flats area, Platte County, Wyoming
M. A. Crist
1983, Water-Resources Investigations Report 83-4047
The area includes about 260 square miles in central Platte County that consists of Wheatland Flats and a border region. Wheatland Flats is an area of about 100 square miles that is bounded by Chugwater Creek on the east, the Laramie River on the north, and Sybille Creek on the...
Computer program and data listing for two-dimensional ground-water model for Laramie County, Wyoming
M. A. Crist
1983, Water-Resources Investigations Report 83-4137
This is a supplement to the report, ' Effect of pumpage on ground-water levels as modeled in Laramie County, Wyoming, ' published as U.S. Geological Survey Water-Resources Investigations Open-File Report 80-1104. The computer program and data used to model ground-water conditions in post-Cretaceous rocks in Laramie County are listed. (USGS)...
Geophysical investigations of the Umm ar Rummf copper prospect, Al Qunfudhah Quadrangle, Kingdom of Saudi Arabia
Hamdy S. Sadek, H. Richard Blank
1983, Open-File Report 83-298
The Umm ar Rummf copper prospect, located about 30 km east of Al Qunfudhah, Kingdom of Saudi Arabia, consists of zones of malachite disseminations and fracture fillings in outcrops of north-trending impure quartzite of the Bahah group. Systematic Crone electromagnetic and self-potential surveys indicate that weakly conductive tabular bodies having...
Time-domain electromagnetic tests in the Wadi Bidah District, Kingdom of Saudi Arabia
Vincent J. Flanigan, Hamdy Sadek, Bruce Smith, C. L. Tippens
1983, Open-File Report 83-613
A time-domain electromagnetic (TDEM) method was tested in two areas of mineralization in Precambrian rocks in the Wadi Bidah district, Kingdom of Saudi Arabia. Transient-decay voltages in profile mode were measured across the Sha'ab at Tare and Rabathan prospects by use of three transmitterreceiver loop configurations. At the Sha'ab at...
