A preliminary evaluation of the nonfuel mineral potential of Somalia
W.R. Greenwood
1982, Open-File Report 82-788
Additional exploration in Somalia is warranted for a wide variety of metallic and nonmetallic deposits. In Precambrian rocks, deposit types favorable for exploration include: a banded iron formation; platinum-bearing mafic-ultramafic complexes; tin-bearing quartz veins; phosphorite; stratabound base-metal deposits; uranium associated with Precambrian(?) syenite; apatite, molybdenum, and alumina in alkalic rocks;...
Earthquake hazards information dissemination; a study of Charleston, South Carolina
Marjorie R. Greene, Paula L. Gori
1982, Open-File Report 82-233
High-resolution seismic-reflection profiles collected over the Atlantic Upper Continental slope off New Jersey and Georges Bank
D.C. Twichell, N. G. Bailey
1982, Open-File Report 82-595
No abstract available....
Geochemical analyses of rock and stream-sediment samples from the Wild Rogue Wilderness Area, Coos, Curry, and Douglas counties, Oregon
Floyd Gray, J.A. Peterson
1982, Open-File Report 82-186
A presentation and evaluation of the hydrologic information available for the major federal coal lands in seven Eastern States; sources of available information and a plan for future work
David Grason
1982, Open-File Report 82-525
Phase 3 geophysical studies in the Wadi Bidah District, Kingdom of Saudi Arabia
V. J. Flanigan, Hamdy Sadek, C. W. Smith
1982, Open-File Report 82-597
Detailed geophysical measurements have been made in the Rabathan area, Wadi Bidah district, Kingdom of Saudi Arabia, at the site of diamond drill holes RAB-1, -2, and -3; these measurements suggest that the causative source for the anomalous EM (electromagnetic) and SP (self-potential) responses is probably highly conductive zones of...
The lanthanides and yttrium in minerals of the apatite group; a review
Michael Fleischer, Z. S. Altschuler
1982, Open-File Report 82-783
More than 1000 analyses have been tabulated of the distribution of the lanthanides and yttrium in minerals of the apatite group, recalculated to atomic percentages. Average compositions have been calculated for apatites from 14 types of rocks. These show a progressive change of composition from apatites of granitic pegmatites, highest...
Use of geophysical logs in recognizing depositional environments in the Tongue River Member of the Fort Union Formation, Powder River area, Wyoming and Montana
R. M. Flores, J.C. Toth, T.A. Moore
1982, Open-File Report 82-576
The environmental conditions under which rocks in the Paleocene Tongue River Member of the Fort Union Formation were deposited in the Powder River area, Wyoming and Montana, can be determined using geophysical logs with some limitations. It is widely recognized that gamma ray and density logs are useful in identifying...
Ground water for public water supply at Windigo, Isle Royale National Park, Michigan
N.G. Grannemann, F. R. Twenter
1982, Open-File Report 82-567
Three test holes drilled at Windigo in Isle Royale National Park in 1981 indicate that the ophitic basaltic lava flows underlying the area contain little water and cannot be considered a source for public water supply. The holes were 135, 175, and 71 feet deep. One hole yielded about 1...
Field observations and chemical analyses of vegetation, soils and spoil materials, Jarvis Creek preference coal lease, Alaska
L. P. Gough, R. C. Severson, Paul H. Briggs
1982, Open-File Report 82-55
Index of slides of geologic map, mineral occurrence maps, geochemical maps, heavy mineral maps, and mineral resource potential maps, Charlotte 1 degree x 2 degrees quadrangle, North Carolina and South Carolina (CUSMAP Program)
Jacob Eugene Gair
1982, Open-File Report 82-1074-A
Specific conductance and dissolved chloride concentrations of freshwater aquifers and streams in petroleum producing areas in Mississippi
S. J. Kalkhoff
1982, Open-File Report 82-353
Specific conductance and dissolved chloride reconnasissance sampling was conducted in six oil-producing areas of Mississippi during periods of low streamflow in 1980 and 1981. Water samples were collected at 224 ground-water and 190 suface-water sites. Samples from 55 surface-water and 17 ground-water sites contained dissolved chloride concentrations in excess of...
Coal exploratory drilling during 1979 in western Powder River County, Montana
M.A. Kirschbaum, G.A. Correia, M. McPhillips
1982, Open-File Report 82-748
Land subsidence in the San Joaquin Valley, California, as of 1980
R. L. Ireland, J. F. Poland, F. S. Riley
1982, Open-File Report 82-370
Land subsidence due to ground-water overdraft in the San Joaquin Valley began in the mid-1920 's and continued at alarming rates until surface was imported through major canals and aqueducts in the 1950 's and late 1960's. In areas where surface water replaced withdrawal of ground-water, water levels in the...
Ground-water withdrawals and changes in water levels in the Houston District, Texas
R.K. Gabrysch
1982, Open-File Report 82-431
During 1975-79, total withdrawals of ground water in the Houston district decreased by 9.7 percent. This percentage represents a decrease from 505 million gallons per day (22.1 cubic meters per second) during 1975, to 456 million gallons per day (20.0 cubic meters per second) during 1979. The decrease resulted from...
Slides showing preliminary mosaic aeromagnetic and complete Bouguer gravity anomaly maps of the Dillon 1 by 2 degrees Quadrangle, Montana and Idaho
H. E. Kaufmann, W. F. Hanna
1982, Open-File Report 82-604
Characteristics and description of cores from the USGS core hole CRU-1, Parachute Creek Member, Green River Formation, east-central Uinta Basin, Utah
C. W. Keighin
1982, Open-File Report 82-528
Oil-yield, lithologic, and mineral distribution data were determined for cores taken from a 497.7-foot drill hole in the upper part of the Parachute Creek Member of the Eocene Green River Formation. The drill hole, 1050 feet FEL, 700 feet FNL, sec. 3, T. 12 S., R. 24 E., Uintah County,...
Mineral resource potential of the Winchester Roadless Area, Cochise County, Arizona
W. J. Keith, R.A. Martin, T. J. Kreidler
1982, Open-File Report 82-1028
No abstract available....
Slides showing preliminary mosaic magnetic and complete Bouguer gravity anomaly maps of the Butte 1 by 2 degrees Quadrangle, Montana
J. H. Hassemer, W. F. Hanna
1982, Open-File Report 82-603
Lithologic and stratigraphic description of cores of organic-rich shale of Late Devonian and Early Mississippian age in northeastern Kentucky
R.C. Kepferle, J.G. Beard, J.D. Pollock
1982, Open-File Report 82-219
Low-flow characteristics of streams in the Lake Michigan basin, Wisconsin
B. K. Holmstrom
1982, Open-File Report 81-1193
Low-flow characteristics of streams in the Lake Michigan basin are presented. Included are estimates of low-flow frequency at 30 gaging stations, flow duration at 13 gaging stations, and selected low-flow frequency characteristics at 22 low-flow partial-record stations and 123 miscellaneous sites. Equations are provided to estimate low-flow characteristics at sites...
Results of an aquifer test near Lynndyl, Utah
Walter F. Holmes, Dale E. Wilberg
1982, Open-File Report 82-514
An aquifer test was conducted near Lynndyl, Utah, to determine the hydraulic characteristics of a deep artesian aquifer and its associated confining bed. A well completed in the aquifer was pulped continuously for 25 days and measurements of drawdown and recovery were made in 34 observation wells located within a...
Plankton studies in San Francisco Bay; VI, Zooplankton species composition and abundance in the North Bay, 1979-1980
Anne Hutchinson
1982, Open-File Report 82-1003
Data are presented that summarize zooplankton species composition and abundance in North San Francisco Bay during 1979 and 1980. Sampling was conducted once monthly at six stations during 1979 and twice monthly at sixteen stations during 1980. Samples were collected by pump at three depths in the shipping channel and...
Remanent magnetization and magnetic susceptibility of two-oriented cores, Cement oil field, Oklahoma; a reference data set
R.L. Forgey, T.J. Donovan
1982, Open-File Report 82-848
Methodology for stormwater runoff investigation, urban Leon County, Florida
M.A. Franklin
1982, Open-File Report 82-355
The U.S. Geological Survey in cooperation with Leon County is currently (1981) developing a lumped-parameter, rainfall-runoff model for the urban area of the county. Flood information from 16 sites is being collected and will be analyzed to define hydrologic relations useful for estimating magnitude and frequency of discharges in urban...
