Genesis and evolution of the Baid al Jimalah tungsten deposit, Kingdom of Saudi Arabia
Robert J. Kamilli
1986, Open-File Report 86-588
The Baid al Jimalah tungsten deposit flat 25°09 N., long 42°41' E.) is a swarm of steeply dipping, sheeted, tungsten-bearing quartz veins. It is spatially, temporally, and genetically associated with a 569 Ma, highly differentiated, porphyritic granite that intrudes late Proterozoic, immature sandstones of the Murdama group. The bulk of the...
A study of rock stresses and engineering geology in quarries of the Barre Granite of Vermont
Thomas C. Nichols Jr.
1986, Bulletin 1593
Strong-motion accelerograms of the Southern California earthquake of July 8, 1986; a quick look
J. Nielson, F. Risavich, M. Salsman, A. Acosta, D. Johnson, E. C. Etheredge, R. Forshee, J.C. Switzer, R.P. Maley
1986, Open-File Report 86-386
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: June 1986
John B. Townshend, J.E. Papp, H.K. Rex, L.Y. Torrence
1986, Open-File Report 86-300-F
Map showing the number of Giardia cysts in water samples from 69 stream sites in the Sierra Nevada, California
Thomas J. Suk, Stephen K. Sorenson, Peter D. Dileanis
1986, Open-File Report 86-404-W
Geology and mineralogy of the Apex germanium-gallium mine, Washington County, Utah
Lawrence R. Bernstein
1986, Bulletin 1577
Platinum-group elements in magnetic concentrates from the Goodnews Bay District, Alaska
Sam Rosenblum, R. R. Carlson, J. M. Nishi, W.C. Overstreet
1986, Bulletin 1660
Mineral resources of the Owens Peak Wilderness study area, Tulare and Kern counties, California
M. F. Diggles, J. G. Frisken, Andrew Griscom, H. A. Pierce, J. D. Causey
1986, Bulletin 1705-A
Effect of bank protection measures, Stehekin River, Chelan County, Washington
L. M. Nelson
1986, Water-Resources Investigations Report 85-4316
An investigation of the lower Stehekin River was conducted to study the effects on flood elevations and velocities from four bank protection and flood prevention measures that are being contemplated as a means of reducing erosional losses of river bank property. These measures are: bank armoring, armored revetment levees, spur...
Low-flow profiles of the upper Ocmulgee and Flint rivers in Georgia
R.F. Carter, E. H. Hopkins, H. Perlman
1986, Water-Resources Investigations Report 86-4176
This report provides low-flow information for use in evaluating the capacity of streams to supply withdrawals or to accept waste loads from potential new industries without exceeding the limits of State water-quality standards. The report is the first phase of a study of all stream basins north of the Fall...
Investigation of the need for discharge adjustments for unsteady flow at selected gaging stations on streams in Tennessee
B.L. Neely, R.H. Bingham
1986, Water-Resources Investigations Report 84-4144
Measured discharges made during rising or falling stages generally require adjustments to refine constant-stage rating curves (stage-discharge relations) for gaged sites. Measurements at 42 gaging stations on Tennessee streams were selected for adjustment. Two methods, generally accepted by the U.S. Geological Survey, were tested: (1) the slope method adjusts the...
Discharge ratings for control gates at Mississippi River lock and dam 12, Bellevue, Iowa
Albert J. Heinitz
1986, Water-Resources Investigations Report 86-4135
The water level of the navigation pools on the Mississippi River are maintained by the operation of tainter and roller gates at the locks and dams. Discharge ratings for the gates on Lock and Dam 12, at Bellevue, Iowa, were developed from current-meter discharge measurements made in the forebays of...
Directions and rates of ground-water movement in the vicinity of Kesterson Reservoir, San Joaquin Valley, California
R.J. Mandle, A.L. Kontis
1986, Water-Resources Investigations Report 86-4196
A three-dimensional groundwater flow model was used to simulate groundwater flow for a 124 sq mi area in the vicinity of Kesterson Reservoir in the San Joaquin Valley, California. Available data were used to calculate a probable range of groundwater flow rates, but calibration and sensitivity analysis were not done...
Potential effects of anticipated coal mining on salinity of the Price, San Rafael, and Green Rivers, Utah
K.L. Lindskov
1986, Water-Resources Investigations Report 86-4019
The impact of anticipated coal mining in Utah on the salinity of the Price, San Rafael, and Green Rivers is to be addressed in the repermitting of existing mines and permitting of new mines. To determine the potential impacts, mathematical models were developed for the Price and San Rafael River...
Traveltime and dispersion of a soluble dye in the South Branch Potomac River, Petersburg to Green Spring, West Virginia
A. R. Jack
1986, Water-Resources Investigations Report 84-4167
Traveltime studies, using rhodamine dyes, were made in 1970 and 1982 on the South Branch Potomac River from Petersburg, West Virginia, to the confluence with the North Branch Potomac River at Green Spring, West Virginia. Flow duration at the time of the studies was approximately 32% in November 1970 and...
Geochemical map of the North Fork John Day River Roadless Area, Grant County, Oregon
James G. Evans
1986, Miscellaneous Field Studies Map 1581-B
The Wilderness Act (Public Law 88-577, September 3, 1964) and related acts require the U.S. Geological Survey and the U.S. Bureau of Mines to survey certain areas on Federal lands to determine their mineral resource potential. Results must be made available to the public and submitted to the President and the...
Flood-depth frequency relations for streams in Alabama
D.A. Olin
1986, Water-Resources Investigations Report 85-4296
Equations were defined for estimating the depth of water for floods having recurrence intervals of 2, 5, 10, 25, 50, 100, and 200 years on rural and urban streams in Alabama. Multiple regression analyses were made using the ' maximum RSQUARE improvement ' procedures. The dependent variable was the flood...
Selenium concentrations in leaf material from Astragalus Oxyphysus (diablo locoweed) and Atriplex Lentiformis (quail bush) in the interior Coast Ranges and the western San Joaquin Valley, California
J. A. Izbicki, T. F. Harms
1986, Water-Resources Investigations Report 86-4066
Leaf material from selenium accumulating plants was collected and analyzed for selenium to obtain a relative indication of selenium concentrations in soils and identify sites suitable for further soil study. Selenium concentrations of 14 samples of leaf material from Astragalus oxyphysus ranged from 0.08 to 3.5 microg/g dry weight and...
Water resources of Lake and Moody counties, South Dakota
D. S. Hansen
1986, Water-Resources Investigations Report 84-4209
The primary sources of surface water in Lake and Moody Counties are the Big Sioux River and its intermittent tributaries, and Lakes Herman, Madison, and Brant. Seasonal variations in streamflow and lake levels are directly related to seasonal variations in precipitation. Dissolved-solids concentration in water from streams and lakes increases...
Hydraulic properties of rock units and chemical quality of water for INEL-1 — A 10,365-foot deep test hole drilled at the Idaho National Engineering Laboratory, Idaho
L. J. Mann
1986, Water-Resources Investigations Report 86-4020
A 10,365-ft deep test hole drilled at the INEL (Idaho National Engineering Laboratory) in southeastern Idaho provided hydraulic information for rock units underlying the Snake River Plain aquifer. Four aquifer tests showed that the hydraulic conductivity decreased with depth--from an average of 0.03 ft/day for the interval from 1,511 to...
Trans-Alaska Lithosphere Investigation; program prospectus
R.A. Page, J.N. Davies
David B. Stone, editor(s)
1986, Circular 984
Evaluation of streams in selected communities for the application of limited-detail study methods for flood-insurance studies
Ernest D. Cobb
1986, Water-Resources Investigations Report 85-4098
The U.S. Geological Survey evaluated 2,349 communities in 1984 for the application of limited-detail flood-insurance study methods, that is, methods with a reduced effort and cost compared to the detailed studies. Limited-detail study methods were found to be appropriate for 1,705 communities, while detailed studies were appropriate for 62 communities...
Shallow ground-water flow, water levels, and quality of water, 1980-84, Cowles Unit, Indiana Dunes National Lakeshore
D.A. Cohen, R. J. Shedlock
1986, Water-Resources Investigations Report 85-4340
The Cowles Unit of Indiana Dunes National Lakeshore in Porter County, northwest Indiana, contains a broad dune-beach complex along the southern shoreline of Lake Michigan and a large wetland, called the Great Marsh, that occupies the lowland between the shoreline dunes and an older dune-beach complex farther inland. These lacustrine...
Geologic map and structure sections of the Simmons Peak Quadrangle, Cochise County, Arizona
Harald Drewes
1986, IMAP 1569
Free-air gravity anomaly map of the Long Island Platform
D. R. Hutchinson, W.D. Leeds, Robin Bell, J. A. Grow
1986, Miscellaneous Field Studies Map 1807
The U.S. Geological Survey (USGS) has collected marine gravity data along the U.S. Atlantic continental margin during the last decade. This map of the Long Island platform combines the data used to make the preliminary free-air gravity anomaly map of the Atlantic continental margin (Grow and others, 1976) with the...
