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Page 5450, results 136226 - 136250

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Antimony deposits of Quetta-Pishin District, Quetta Division, Pakistan
F.L. Klinger, John J. Matzko, S.H. Abbas
1975, Open-File Report 75-161
Vein-type deposits of antimony ore, consisting of stibnite and quartz, are found in the hanging wall of faults cutting slate of probable Miocene age 15 miles northeast of Qila Abdullah in the Quetta-Pishin District. The ore is associated with zones of oxidized slate. Although the known deposits are small, the...
Barite deposits near Khuzdar, Kalat Division, Pakistan
Frederick L. Klinger, Mohammad Iftikhar Ahmad
1975, Open-File Report 75-275
Important deposits of barite are about 6 miles southwest of Khuzdar in a folded belt of Jurassic limestone and shale. The deposits are lenses distributed along a narrow stratigraphic zone more than 4,600 feet long. Wallrocks have been altered by silicification, leaching, and by the introduction and oxidation of iron....
Surface-water availability, Tuscaloosa County, Alabama
Alfred L. Knight, Marvin E. Davis
1975, Open-File Report 75-458
The average annual runoff, about 1,270 mgd (million gallons per day), originating in Tuscaloosa County is equivalent to 20 inches or 0.95 mgd per square mile. The Black Warrior and Sipsey Rivers, the largest streams in the county, have average flows of 5,230 mgd and 580 mgd, respectively, where they...
Analysis of operational plan for Lake Chippewa near Winter, Wisconsin
William R. Krug
1975, Open-File Report 75-487
Historical inflows into Lake Chippewa for 39 years of record were analyzed to determine the possibility of operating the flowage within a 2-foot (0.6-metre) range of stage while maintaining a minimum discharge of 57 cubic feet per second (1.6 cubic metres per second) and limiting the maximum discharge to 7,000...
Titanium minerals in deposits of other minerals
Eric R. Force
1975, Open-File Report 75-34
Titanium minerals in amounts equivalent to a significant portion of present world production are moved but not recovered from mines of other commodities. Resources of this type total in the millions of tons of contained TiO2. Among the possible sources for byproduct titanium are (1) ilnenite and minor rutile detrital...
Configuration of water table and distribution of downward leakage to the Prairie du Chien-Jordan Aquifer in the Minneapolis-Saint Paul metropolitan area, Minnesota
Dana C. Larson-Higdem, S. P. Larson, Ralph F. Norvitch
1975, Open-File Report 75-342
The configuration of the water table as plotted at a contour interval of 20 feet (6 metres) on quadrangle maps (scale 1:2,500) of the Minneapolis-Saint Paul metropolitan area. Control points used for mapping were water levels in wells, lakes and sloughs, and places where topographic contours cross perennial streams. A computer...
An appraisal of groundwater for irrigation in the Appleton area, west-central Minnesota
Steven J. Larson
1975, Open-File Report 75-32
Supplemental irrigation of well-drained sandy soils has prompted an evaluation of ground water in the Appleton area. Glacial drift aquifers are the largest source of ground water. The surficial outwash sand and gravel is the most readily available and a really extensive drift aquifer and underlies much of the sandy...
Stochastic analysis of particle movement over a dune bed
Baum K. Lee, Harvey E. Jobson
1975, Open-File Report 75-358
Stochastic models are available that can be used to predict the transport and dispersion of bed-material sediment particles in an alluvial channel. These models are based on the proposition that the movement of a single bed-material sediment particle consists of a series of steps of random length separated by rest...
Airborne gamma-radiation survey of the Jabel Ishmas Quadrangle, Kingdom of Saudi Arabia
Vincent J. Flanigan
1975, Open-File Report 75-190
An airborne gamma-radiation survey system, which includes digital recording and automatic data processing procedures developed by the U. S. Geological Survey Saudi Arabian Project, is used to collect spectral gamma-radiation data as an aid to regional geologic mapping of pediment areas on the Arabian Shield. The areal extent of rock...
Reconnaissance engineering geology of the Ketchikan area, Alaska, with emphasis on evaluation of earthquake and other geologic hazards
Richard W. Lemke
1975, Open-File Report 75-250
The Alaska earthquake of March 27, 1964, dramatically emphasized the need for engineering geologic studies of urban areas in seismically active regions. A reconnaissance study of the Ketchikan area in southeastern Alaska is part of a program to evaluate earthquake and other geologic hazards in most of the larger Alaska...