30 Matching Results

Search Results

Results: 1 - 24 next
open access

Minerals of Colorado: A 100-Year Record

Description: A report about the known facts about the minerals that make up the rocks, soils, and ore deposits of Colorado.
Date: 1961
Creator: Eckel, Edwin B.
Partner: UNT Libraries Government Documents Department
open access

Geochemistry, Mineralogy, and Geochronology of the U.S. Virgin Islands

Description: A report about the geochemical and mineralogic study of the U.S. Virgin Islands indicates the presence of a previously undocumented Sn-Pb and precious metals.
Date: 1994
Creator: Alminas, Henry V.; Foord, Eugene E. & Tucker, Robert E.
Partner: UNT Libraries Government Documents Department
open access

Uranium in Peru

Description: Introduction: From the inception of the effort to utilize atomic energy Perú has been of interest as a possible source of radioactive raw materials because of its great variety and abundance of metals. Because of this and a desire at that time to develop additional supplies of uranium, a cooperative program to search for uranium deposits was initiated in 1953 by the Junta and the USAEC.
Date: January 1, 1962
Creator: Gabelman, John W. & Beard, Raymond R.
Partner: UNT Libraries Government Documents Department
open access

Reconnaissance for Uranium in the Tocopilla area, Province of Antofagasta, Chile

Description: Abstract: In September-October 1958 a six-day reconnaissance in the Tocopilla area, Antofagasta Province, Chile, was made by members of the U.S. Atomic Energy Commission and the Instituto de Investigaciones Geológicas de Chile for the purpose of evaluating reported uranium occurrences.
Date: February 1959
Creator: Bowes, William A.; Knowles, Paul H.; C., Mario Serrano & S., Rudolfo Grüenwald
Partner: UNT Libraries Government Documents Department
open access

Reconnaissance for Uranium in the Chanaral-Taltal area, Provinces of Antofagasta and Atacama, Chile

Description: Abstract: In the Chañaral-Taltal area of northern Chile irregular replacement type iron deposits are especially well developed along a somewhat radioactive lithologic belt in andesite volcanic rocks and Cretaceous dioretic intrusions to the east of the Atacama fault, a prominent shear zone.
Date: December 1961
Creator: Bowes, William A.; Knowles, Paul H.; Moraga B., Aldo & C., Mario Serrano
Partner: UNT Libraries Government Documents Department
open access

Reconnaissance for Uranium in the Arica Area, Province of Tarapaca, Chile

Description: Abstract: In August 1958 two geologists of the Instituto de Investigaciones Geológicas de Chile made a one-week reconnaissance for uranium of the Arica area in northern Chile.
Date: December 1960
Creator: C., Mario Serrano & H., Erik Klohn
Partner: UNT Libraries Government Documents Department
open access

Reconnaissance for Uranium in the San Pedro de Atacama and Laco areas, Province of Antofagasta, Chile

Description: Abstract: A reconnaissance for uranium in and a general geologic study of the San Pedro de Atacama and Laco areas of nothern Chile disclosed no significant radioactivity in the Laco area, but near San Pedro de Atacama slight anomalies were detected in limey silts of the San Pedro formation.
Date: December 1961
Creator: Knowles, Paul H.; Bowes, William A.; C., Mario Serrano & Moraga B., Aldo
Partner: UNT Libraries Government Documents Department
open access

Mineral Resources of the Turtle Mountains Wilderness Study Area, San Bernardino County, California

Description: From abstract: At the request of the U.S. Bureau of Land Management, approximately 105,200 acres of the Turtle Mountains Wilderness Study Area (CDCA-307) were evaluated for mineral resources (known) and resource potential (undiscovered). In this report, the area studied is referred to as "the wilderness study area" or simply "the study area"; any reference to the Turtle Mountain Wilderness Study Area refers only to that part of the wilderness study area for which a mineral survey was requested … more
Date: 1988
Creator: Howard, Keith A.; Nielson, Jane E.; Simpson, Robert W.; Hazlett, Richard W.; Alminas, Henry V.; Nakata, John K. et al.
Partner: UNT Libraries Government Documents Department
open access

Map of the Colorado Plateau Showing Deposits and Groups of Deposits That Have Produced 1,000 Tons or More of Uranium-Vanadium Ore Through December 31, 1953

Description: The following document provides a mineralogical and geological map of the Colorado Plateau providing deposits and groups of deposits that have been found to produce 1,000 tons or more of uranium-vanadium within December 31, 1953.
Date: 1955
Creator: Chew, Randall T., (3d.)
Partner: UNT Libraries Government Documents Department
open access

Map of the Colorado Plateau Showing Deposits and Groups of Deposits that Produced 1,000 Tones or More of Uranium-Vanadium Ore Through December 31, 1953

Description: The following document provides a mineralogical and geological map of the Colorado Plateau providing deposits and groups of deposits that have been found to produce 1,000 tons or more of uranium-vanadium within December 31, 1953.
Date: 1955
Creator: Chew, Randall T., (3d.)
Partner: UNT Libraries Government Documents Department
open access

Molar Volumes and Densities of Minerals

Description: The following report presents tables critically chosen for the "best values" for the density and molar volume of selected mineral compounds. The intent to the selection was not to be inclusive, but to present data for chemically and physically well-defined phases for which the molar volume and/or density was known to the order of 0.2 percent.
Date: July 1962
Creator: Robie, Richard A. & Bethke, Philip M.
Partner: UNT Libraries Government Documents Department
open access

Some Natural Variations in the Relative Abundance of Copper Isotopes

Description: Abstract: "The relative isotopic abundance of copper has been measured in a number of minerals. Suites of samples from Michigan and the Colorado Plateau have been examined to determine if local variations due to isotopic exchange or diffusion could be found. The relative isotopic abundance of copper in specimens from a number of other places was also determined. The variations noted were small but in most cases were felt to be significant because they were larger than the experimental error (0.… more
Date: August 1957
Creator: Walker, Edward C.; Cuttitta, Frank & Senftle, Frank E.
Partner: UNT Libraries Government Documents Department
open access

Identification and Occurrence of Uranium and Vanadium Minerals From the Colorado Plateaus

Description: Abstract: "This report, designed to make available to field geologists and others information on identification and occurrence of uranium minerals of the Colorado Plateaus, contains physical properties, X-ray data, and in some instances results of chemical and spectrographic analysis of 24 uranium and 17 vanadium minerals. Also included is a table giving the optical properties of uranium minerals and a list of locations of mines from which the minerals have been identified."
Date: April 1953
Creator: Weeks, A. D. & Thompson, M. E.
Partner: UNT Libraries Government Documents Department
open access

A Multiple Cone Splitter for Rapid Sampling in the Laboratory

Description: Report explaining a multiple cone sample splitter, which, in one operation, obtains representative sample fractions of 5-50 percent and increases time efficiency compared to conventional methods of sample splitting. Information regarding the machine's description, operation, and accuracy are given as well as a summary.
Date: October 1953
Creator: Kellagher, Richard
Partner: UNT Libraries Government Documents Department
open access

Chromite deposits of Kenai Peninsula, Alaska

Description: This report describes field work and research done in two areas of ultramafic rocks containing chromite deposits are known at the south end of Kenai Peninsula, Alaska. The Red Mountain is the other area covered in this report.
Date: 1942
Creator: Guild, Philip White
Partner: UNT Libraries Government Documents Department
open access

Mineralogy and Geochemistry of a Uraniferous Coal From the Red Desert Area, Sweetwater County, Wyoming

Description: Report discussing the investigation of the mineralogy and geochemistry of some subbituminous uraniferous coal from the Red Desert area of Sweetwater County, Wyoming. Data and discussion from the mineralogic and geochemical studies, Fischer retort assays of a coal sample, and summary and conclusions are included.
Date: August 1953
Creator: Breger, I. A.; Deul, Maurice; Meyrowitz, Robert & Rubinstein, Samuel
Partner: UNT Libraries Government Documents Department
open access

On Metamictic Disintegration of the Zircon Group of Minerals

Description: Report discussing a study regarding the metamictic state of zircon group minerals. This study was aimed at better understanding metamictic alteration. Experimental data and discussion of various metamictic zircons are included.
Date: January 1954
Creator: Kostyleva, E. E.
Partner: UNT Libraries Government Documents Department
open access

Studies of Uranium Minerals: The Status of Billietite and Becquerelite

Description: Report describing studies regarding billietite and becquerelite. Tables with optics of the materials, chemical analyses results, cell constants and specific gravities, and interplanar spacings of the materials are included as well as crystallographic forms of billietite
Date: February 1953
Creator: Frondel, Judith W. & Cuttitta, Frank
Partner: UNT Libraries Government Documents Department
open access

A Nomogram for Obtaining Percent Composition by Weight From Mineral-Grain Counts

Description: Report describing a nomogram for calculating percent composition from mineral-grain counts. From abstract: "A nomogram for calculating percent composition from mineral-grain counts reduces several of the more tedious arithmetical operations to two mechanical ones."
Date: October 1952
Creator: Berman, Robert
Partner: UNT Libraries Government Documents Department
open access

Supergene Alteration of Uranium-Bearing Veins in the United States

Description: The following report is a chapter in a comprehensive report titled "Geology of uranium-bearing vein deposits in the United States", dealing with supergene alteration of uranium-bearing veins. This contains detailed information on tectonic and structural setting, kinds of host rocks, wall-rock alteration, mineralogy, physical characteristics, processes of deposition, and concepts if origin of uraniferous veins.
Date: August 1957
Creator: Walker, George W.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen