Hydrogeology of the Sarasota-Port Charlotte area, Florida
R. M. Wolansky
1983, Water-Resources Investigations Report 82-4089
The surficial and intermediate aquifers are the major source of public water supplies in the Sarasota-Port Charlotte, Florida, area because of the relatively poor quality of Floridan aquifer water. The hydrogeologic framework consists of the surficial aquifer, intermediate aquifers (Tamiami-upper Hawthorn and lower Hawthorn-upper Tampa aquifers) and confining beds, Floridan...
Hydrologic and geologic aspects of waste management and disposal; a bibliography of publications by U.S. Geological Survey authors, 1950-81
Elinor H. Handman
1983, Circular 907
References to more than 550 reports, articles, and maps are listed alphabetically by author and are indexed by subject. The subject index includes geographic-area terms. Citations from 69 series are included; series are listed separately. The publications listed report the results of U.S. Geological Survey research and field projects throughout...
Distribution and abundance of molybdenum, tin and tungsten in nonmagnetic and moderately magnetic heavy-mineral-concentrate samples and tin in minus-80-mesh stream-sediment and ash of aquatic-bryophyte samples, Medfra quadrangle, Alaska
H. D. King, D. A. Risoli, R. B. Tripp
1983, Open-File Report 80-811-J
No abstract available....
A seismic study of Yucca Mountain and vicinity, southern Nevada; data report and preliminary results
L.R. Hoffman, W. D. Mooney
1983, Open-File Report 83-588
From 1980 to 1982, the U.S. Geological Survey conducted seismic refraction studies at the Nevada Test Site to aid in an investigation of the regional crustal structure at a possible nuclear waste repository site near Yucca Mountain. Two regionally distributed deployments and one north-south deployment recorded nuclear events. First arrival...
Finite-difference model predictions of the drastic retreat of Columbia Glacier, Alaska
R.A. Bindschadler, Lowell A. Rasmussen
1983, Professional Paper 1258-D
Mineral deposit grade-tonnage models II
D.L. Mosier
Donald A. Singer, editor(s)
1983, Open-File Report 83-902
Man-induced channel adjustment in Tennessee streams
C. H. Robbins, Andrew Simon
1983, Water-Resources Investigations Report 82-4098
Channel modifications in Tennessee, particularly in the western part, have led to large-scale instabilities in the channelized rivers and may have contributed to several bridge failures. These modifications, together with land-use practices, led to downcutting, headward erosion, downstream aggradation, accelerated scour, and bank instabilities. Changes in gradient by channel straightening...
Studies related to the Charleston, South Carolina, earthquake of 1886 — Tectonics and seismicity
David Gottfried, C. S. Annell, G. R. Byerly, Marvin A. Lanphere, Jeffrey D. Phillips, Gregory S. Gohn, Brenda B. Houser, Ray R. Schneider, Hans D. Ackermann, B. R. Yantis, John K. Costain, F. Steve Schilt, Larry Brown, Jack E. Oliver, Sidney Kaufman, Robert Morrison Hamilton, John C. Behrendt, V. James Henry, Kenneth C. Bayer, David L. Daniels, Isidore Zietz, Peter Popenoe, T. M. Chowns, C. T. Williams, Robert E. Dooley, J. Wampler, William P. Dillon, Kim D. Klitgord, Charles K. Paull, Lyle D. McGinnis, James W. Dewey, Arthur C. Tarr, Susan Rhea, Carl M. Wentworth, Marcia Mergner-Keefer, G. A. Bollinger
Gregory S. Gohn, editor(s)
1983, Professional Paper 1313
Since 1973, the U.S. Geological Survey (USGS), with support from the Nuclear Regulatory Commission, has conducted extensive investigations of the tectonic and seismic history of the Charleston, S.C., earthquake zone and surrounding areas. The goal of these investigations has been to discover the cause of the large intraplate Charleston earthquake...
Distribution and abundance of arsenic and bismuth in nonmagnetic and moderately magnetic heavy-mineral-concentrate samples and arsenic in minus-80-mesh stream-sediment and ash of aquatic-bryophyte samples, Medfra quadrangle, Alaska
H. D. King, E.F. Cooley, D. L. Spiesman Jr.
1983, Open-File Report 80-811-K
No abstract available....
Distribution and abundance of copper, lead, and zinc in nonmagnetic and moderately magnetic heavy-mineral-concentrate, minus-80-mesh stream-sediment, and ash of aquatic-bryophyte samples, Medfra quadrangle, Alaska
H. D. King
1983, Open-File Report 80-811-I
Aeromagnetic map of Yucca Mountain and surrounding regions, southwest Nevada
Martin Francis Kane, Robert E. Bracken
1983, Open-File Report 83-616
Magnetic anomalies over Yucca Mountain and surrounding areas are largely caused by variations in magnetic properties and shapes, including structural offsets, of the extensive volcanic units that underlie the region. In a few places the anomalies are caused by intrusions. Correlation between magnetic properties measured from rock samples and those...
Geophysical and geologic studies in southern Mecklenburg County and vicinity, North Carolina and South Carolina
Frederick A. Wilson
1983, Open-File Report 83-93
Geophysical methods consisting of gravity, aeromagnetics and aeroradioactivity have been applied to part of the Charlotte and Carolina slate belts in southern Mecklenburg County and vicinity to help interpret geology, lithology and structure. High aeroradioactivity is associated with potassium-rich granitic plutons, muscovite-rich gneisses, schists, and metavolcanic rocks; positive gravity and...
Oxygen and strontium isotopic studies of basaltic lavas from the Snake River plain, Idaho
William P. Leeman, Joseph F. Whelan
1983, Open-File Report 83-338
The Snake Creek-Williams Canyon pluton of the southern Snake Range crops out over an area of about 30 km2, about 60 km southeast of Ely, Nev. This Jurassic intrusion displays large and systematic chemical and mineralogical zonation over a horizontal distance of 5 km. Major-element variations compare closely with Dalyls...
Distribution and abundance of antimony and mercury in minus-80-mesh stream-sediment and antimony in nonmagnetic and moderately magnetic heavy-mineral-concentrate samples, Medfra quadrangle, Alaska
H. D. King, R. M. O’Leary, D. A. Risoli, D. W. Galland
1983, Open-File Report 80-811-L
No abstract available....
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...
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...
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,...
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...
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
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...
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...
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...
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...
Geophysical methods for locating abandoned wells
Frank C. Frischknecht, L. Muth, R. Grette, T. Buckley, B. Kornegay
1983, Open-File Report 83-702
A preliminary study of the feasibility of using geophysical exploration methods to locate abandoned wells containing steel casing indicated that magnetic methods promise to be effective and that some electrical techniques might be useful as auxiliary methods. Ground magnetic measurements made in the vicinity of several known cased wells yielded...
Preliminary assessment of the geochemistry and mineral favorability of the postorogenic granites of the southeastern Arabian Shield, Kingdom of Saudi Arabia
John S. Stuckless, G. VanTrump, E. H. Christiansen, C. A. Bush, C. M. Bunker, A.J. Bartel
1983, Open-File Report 83-486
Chemical analyses of samples for 19 postorogenic plutons from the southeastern Arabian Shield show that these rocks have average potassium/rubidium ratios (162) and average rubidium/strontium ratios (11.8) characteristic of highly evolved granites. Most of the analyzed samples are peraluminous. Three plutons are physically similar in terms of shape and megascopic...
