Search Results

open access

An Apparatus for the Study of Thermoluminescence from Minerals

Description: This report discusses an apparatus that has been constructed to record the thermoluminescence of a mineral in the form of a powder or a single crystal at temperatures from -100 C to +400 C.
Date: July 1957
Creator: Ashby, G. E. & Kellagher, R. C.
Partner: UNT Libraries Government Documents Department
open access

Determination of Thorium in the Parts Per Million Range in Rocks

Description: Abstract: "A procedure for the determination of thorium in the concentration range of 0.2 to 10 parts per million ThO2 in felsic or mafic rocks. Thorium is extracted by mesityl oxide and purified by iodate precipitation from nitric acid medium containing tartaric acid and hydrogen peroxide. The thorium is determined spectrophotometrically with thoron from meso-tartaric acid medium."
Date: July 1957
Creator: Levine, Harry & Grimaldi, Frank S.
Partner: UNT Libraries Government Documents Department
open access

Geologic Investigations of Radioactive Deposits

Description: The following report is a statement of the Geological Survey's progress on the investigation of the fundamental geology, mineralogy, and geochemistry of uranium and other radioactive materials with the intention of discovering and delimiting areas favorable for the future production of uranium and other radioactive ores. This report covers the period from December 1, 1956 to May 31, 1957.
Date: July 1957
Creator: Geological Survey (U.S.)
Partner: UNT Libraries Government Documents Department
open access

Mineralogy, Internal Structural and Textural Characteristics, and Paragenesis of Uranium-Bearing Veins in the United States

Description: From introduction: The purpose of this paper is to summarize and review some of the recent mineralogic information relevant to uranium-bearing veins in the United States, as well as to describe some of the reported mineralogic associations and the modes of occurrence of the uranium minerals in vein deposits.
Date: July 1957
Creator: Walker, George Walton & Adams, John W.
Partner: UNT Libraries Government Documents Department
open access

Mineralogy, Internal Structural and Textural Characteristics, and Paragenesis of Uranium-Bearing Veins in the United States

Description: The following report summarizes and reviews some of the recent [1957] mineralogic information relevant to uranium-bearing veins in the United States, as well as describing some of the reported mineralogic associations and the modes of occurrence of the uranium minerals in vein deposits. This paper is a chapter of a larger and more comprehensive report entitled, "Geology of Uranium-Bearing Vein Deposits in the United States".
Date: July 1957
Creator: Walker, George W. & Adams, John W.
Partner: UNT Libraries Government Documents Department
open access

Petrographic Study of Sandstone of the Inyan Kara Group (Cretaceous) and Associated Rocks in the Black Hills, Wyoming and South Dakota

Description: The following report covers the Petrographic study of Early Cretaceous age sandstone beds in the Fall River formation and the Fuson-Lakota formations, as well as Late Jurassic age beds in the underlying Unkpapa and Morrison formations along the western side of the Black Hills.
Date: July 1957
Creator: Bergenback, R. E.; Chisholm, W. A. & Mapel, W. J.
Partner: UNT Libraries Government Documents Department
open access

Age Determinations on New Hampshire Granites

Description: From abstract: "Age determinations by the Larsen method are reported for the four Paleozoic plutonic series of New Hampshire."
Date: July 1955
Creator: Lyons, J. B.; Gottfried, D.; Smith, W. L.; Jaffe, H. W. & Waring, C. L.
Partner: UNT Libraries Government Documents Department
open access

Coffinite, a Uranous Silicate With Hydroxyl Substitution: A New Mineral

Description: Report discussing the properties of coffinite, a uranous silicate mineral. Coffinite was newly discovered at the time of this report's publication.
Date: July 1955
Creator: Stieff, L. R.; Stern, T. W. & Sherwood, A. M.
Partner: UNT Libraries Government Documents Department
open access

Selected Annotated Bibliography and Index Map of Thorium and Rare-Earth Deposits in the United States and Alaska

Description: Introduction: Thorium and rare-earth metals have come into strategic importance in this country in the last few years with the potential use of thorium in the production of atomic power and the development of new uses for the rare earths in the aircraft industry.
Date: July 1955
Creator: Buck, Katharine L.
Partner: UNT Libraries Government Documents Department
open access

Selected Annotated Bibliography and Index Map of Thorium and Rare-Earth Deposits in the United States and Alaska

Description: Report providing a bibliography and index map for thorium occurrences and rare-earth deposits throughout the United States. The introduction contains information on these deposits' uses, the industry surrounding these deposits and its problems, and ore deposits.
Date: July 1955
Creator: Buck, Katharine L.
Partner: UNT Libraries Government Documents Department
open access

An Application of Spectrographic Microphotometric Scanning

Description: A report about a previously published semiquantitative spectrographic method that was modified by applying microphotometric scanning of the spectrograms in such a way that the operator was free to do other work during a large part of the scanning time.
Date: July 1954
Creator: Waring, C. L.; Frank, Mona & Sherwood, A. M.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen