Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Results

165901 results.

Alternate formats: RIS file of the first 3000 search results  |  Download all results as CSV | TSV | Excel  |  RSS feed based on this search  |  JSON version of this page of results

Page 5464, results 136576 - 136600

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Reconnaissance of the geology and ore mineralization in part of the Chagai District, Pakistan
Raymond H. Nagell
1975, Open-File Report 75-550
The Chagai District of the Quetta Division is in the northwestern part of Pakistan. Igneous activity during the Himalayan orogeny included the extrusion of horizontally layered andesites of the Cretaceous Sinjrani Volcanic Group, emplacement of monzonitic stocks of the Cretaceous Chagai intrusions, and the extrusion of flows and tuffs of the...
Sulfur, fluorspar, magnesite, and aluminous chromite in Pakistan
Raymond H. Nagell
1975, Open-File Report 75-496
Reports and analyses on elemental sulfur, fluorspar, magnesite, and aluminous chromite were reviewed for the purpose of identifying and categorizing the known deposits, and to indicate those which seem to merit further study on the basis of available information. General conclusions drawn from the study are: (1) Although aluminous chromite...
Geology of the Midnite uranium mine, Stevens County, Washington; a preliminary report
J. Thomas Nash, Norman J. Lehrman
1975, Open-File Report 75-402
The Midnite mine is one of only two mines in the United States currently producing uranium from discordant deposits in crystalline host rocks. Ore bodies are in metamorphosed steeply dipping Precambrian pelitic and calcareous rocks of a roof pendant adjacent to a Cretaceous(?) porphyritic quartz monzonite pluton. Production during 14...
Physical factors determining the fraction of stored energy recoverable from hydrothermal convection systems and conduction-dominated areas
Manuel Nathenson
1975, Open-File Report 75-525
This report contains background analyses for the estimates of Nathenson and Muffler (1975) of geothermal resources in hydrothermal convection systems and conduction-dominated areas. The first section discusses heat and fluid recharge potential of geothermal reservoirs. The second section analyzes the physical factors that determine the fraction of stored energy obtainable...
Some reservoir engineering calculations for the vapor-dominated system at Larderello, Italy
Manuel Nathenson
1975, Open-File Report 75-142
Various reservoir properties are calculated for the Larderello vapor-dominated system using available published data. Bottom-hole flowing properties are calculated from measured wellhead data. Whereas wellhead temperatures measured at a particular time tend to change systematically with changes in flow and pressure, calculated bottom-hole temperatures tend to be constant for two...
Water availability of Washington County, Alabama
John G. Newton, Jerald F. McCain, James D. Turner
1975, Open-File Report 75-476
Large quantities of ground water and surface water are available in Washington County. Major sources of ground water are the Gosport Sand and Lisbon Formation undifferentiated, the Miocene Series undifferentiated, and alluvium and low terrace deposits. The Miocene, the most productive source of ground water, will yield 0.5 to 1.0...
Preliminary hydrogeologic appraisal of selected hydrothermal systems in northern and central Nevada
F. H. Olmsted, P.A. Glancy, J. R. Harrill, F. E. Rush, A. S. Van Denburgh
1975, Open-File Report 75-56
Several hydrothermal systems in northern and central Nevada were explored in a hydrogeologic reconnaissance. The systems studied comprise those at Stillwater and Soda Lakes-Upsal Hogback in the Carson Desert, Gerlach, Fly Ranch-Granite Range, and Double Hot Springs in the Black Rock Desert, Brady's Hot Springs, Leach Hot Springs in Grass...
Experimental results of atomic absorption analyses for indium and thallium in 803 nonmagnetic concentrates from Alaska
William C. Overstreet, George L. Crenshaw, Arthur E. Hubert, Sam Rosenblum, Ricke J. Smith
1975, Open-File Report 75-253
The development in the U.S. Geological Survey of rapid methods for the determination by atomic absorption spectrophotometry of indium and thallium at limits of detection as low as 0.2 ppm each in geologic materials affords great advantages over spectrographic methods in studies concerned with values at or near the crustal...
Environmental tritium in the Edwards Aquifer, central Texas 1963-71
Frederick Joseph Pearson, Paul L. Rettman, T.A. Wyerman
1975, Open-File Report 74-362
Tritium concentrations of samples from 50 wells and springs in the Edwards aquifer in the San Antonio area of Texas have been analysed. Tritium now in the aquifer is partly natural cosmic ray produced tritium, but most is tritium produced by atmospheric thermonuclear tests in the 1950's and early 1960's....
Petrography of University of Washington dredge samples for the central Chukchi Sea
Jeremy B. Platt
1975, Open-File Report 75-269
Twenty thin sections of rocks dredged from the central Chukchi Sea have been examined petrographically and compared with some onshore rocks in northern Alaska. Of these, 16 are sandstones, three are highly CaCO3-rich silts and carbonate rocks, and one is an olivine-magnetite-rich basalt. Eight of the sandstones have been point-counted...
Cedar Creek at Cedartown, Georgia-- floodflow characteristics at bridge site of Georgia Avenue relocation (supplement to open-file report 75-46)
McGlone Price
1975, Open-File Report 75-332
The May 1974 U.S. Geological Survey open-file report 75-46, "Cedar Creek at Cedartown, Georgia, Floodflow Characteristics at Georgia Avenue, Relocation and Canal Street Extension," prepared at the request of the Georgia Department of Transportation, described the hydraulic characteristics of the Georgia Avenue relocation as constructed in April 1974, and evaluated...