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Report of the Nonmetals Division: Fiscal Year 1942

Description: Report issued by the Bureau of Mines over the operations of the Nonmetals Division during 1942. The work done by the division is discussed. This report includes tables, illustrations, and photographs.
Date: November 1942
Creator: Ralston, Oliver C. & Stern, A. George
Partner: UNT Libraries Government Documents Department
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The Absolute Abundance of the Chromium Isotopes in Some Secondary Minerals

Description: From abstract: "Isotopic assays have been made on the chromium in samples from fourteen different chrominiferous minerals from different geographic and meteoritic sources. The results of the assays indicate that it is not possible to unequivocally state that variations in isotopic compositions have been observed."
Date: 1962
Creator: Svec, Harry J. (Harry John), 1918-; Flesch, G. D. & Capellen, J.
Partner: UNT Libraries Government Documents Department
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Mineral Resources of the Malagasy Republic

Description: Report issued by the U.S. Bureau of Mines discussing mineral resources of the Malagasy Republic. As stated in the introduction, "this survey presents essential data from which a preliminary appraisal of mineral-development potentials can be made and includes minerals not of primary interest to investors" (p. 1). This report includes maps, tables, and illustrations.
Date: 1963
Creator: Murdock, Thomas G.
Partner: UNT Libraries Government Documents Department
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The Manufacture of Sulphuric Acid in the United States

Description: Report issued by the Bureau of Mines over the production of sulfuric acid. As stated in the introduction, "the present bulletin was prepared to cover the main facts in regard to the industry in this country, including a discussion of the supplies of sulfur-bearing raw materials, the situation of the acid plants, the principal points in regard to manufacturing processes, and the uses of the acid" (p. 2). This report includes tables, illustrations, photographs, and a map.
Date: July 1920
Creator: Wells, Arthur Edward & Fogg, Donald E.
Partner: UNT Libraries Government Documents Department
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Metal-residence sites in mine tailings in the Magdalena District, New Mexico, USA

Description: Mineralization in the Kelly Mining Camp is hosted by the Mississippian Kelly Limestone and comprises Zn-Pb skarn, replacement, and vein deposits related to Tertiary intrusive activity. The ore consists of primary (hypogene) sulfide mineralization which has been oxidized near surface to form secondary (supergene) mineralization. A zone of secondary sulfide-enrichment separates the sulfide and oxide ores. Mine tailings in the camp contain primary sulfide, oxide and gangue minerals, secondary (supergene) minerals formed during weathering of the primary ore, and tertiary minerals formed by alteration of hypogene and supergene assemblages after deposition in the tailings impoundment.
Date: May 1, 1996
Creator: Larocque, A. C. L.; Chapin, C. E.; Laughlin, A. W. & Hickmott, D.
Partner: UNT Libraries Government Documents Department
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Dielectric Separation of Minerals

Description: From Introduction: "The Bureau conducted the research described in this bulletin to provide a fundamental understanding of the design and operating characteristics of a dielectric separator."
Date: 1985
Creator: Jordan, C. E. & Sullivan, G. V.
Partner: UNT Libraries Government Documents Department
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An Appraisal of Minerals Availability for 34 Commodities

Description: From Program Overview: "This bulletin summarizes and updates availability information published in individual mineral commodity appraisals since 1979. it also marks achievement, after 15-yr systems and data development history, of a major Bureau goal to build computer-based systems and the necessary staff infrastructure to perform timely, commodity-wide assessments with comparable cost frameworks."
Date: 1987
Creator: United States. Bureau of Mines.
Partner: UNT Libraries Government Documents Department
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Passage of Solid Particles Through Rotary Cylindrical Kilns

Description: Technical paper issued by the Bureau of Mines over studies conducted on rotary kilns. As stated in the introduction, "the object of this study was to determine the factors that influence the rate of progress of crushed materials through a kiln" (p. 1). This paper includes tables, illustrations, and photographs.
Date: 1927
Creator: Sullivan, John D.; Maier, Charles G. & Ralston, Oliver C.
Partner: UNT Libraries Government Documents Department
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Status of ownership of part of the lands on which phosphate-bearing beds outcrop in southwestern Montana and northeastern Idaho

Description: This report and accompanying maps summarize the states of ownership of many phosphate bearing lands in southwestern Montana and Northeastern Idaho. Ownership categories discussed are (1) phosphate rights owned by Federal Government, (2) phosphate rights not owned by Federal Government, and (3) ownership status uncertain."
Date: August 1954
Creator: Willey, Emerson C.; Cressman, Earle Rupert, |d 1923-; Peirce, H. Wesley & Cheney, T. M.
Partner: UNT Libraries Government Documents Department
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Radiation-Induced Decomposition of U(VI) Alteration Phases of UO{sub 2}

Description: U{sup 6+} phases are common alteration products of spent nuclear fuel under oxidizing conditions, and they may potentially incorporate actinides, such as long-lived {sup 239}Pu and {sup 237}Np, delaying their transport to the biosphere. In order to evaluate the ballistic effects of {alpha}-decay events on the stability of the U{sup 6+}-phases, they report, for the first time, the results of ion beam irradiations (1.0 MeV Kr{sup 2+}) for six different structures of U{sup 6+}-phases: uranophane, kasolite, boltwoodite, saleeite, carnotite, and liebigite. The target uranyl-minerals were characterized by powder X-ray diffraction and identification confirmed by SAED in TEM. The TEM observation revealed no initial contamination of uraninite in these U{sup 6+} phases. All of the samples were irradiated with in situ TEM observation using 1.0 MeV Kr{sup 2+} in the IVEM (intermediate-voltage electron microscope) at the IVEM-Tandem Facility of Argonne National Laboratory. The ion flux was 6.3 x 10{sup 11} ions/cm{sup 2}/sec. The specimen temperatures during irradiation were 298 and 673 K, respectively. The Kr{sup 2+}-irradiation decomposed the U{sup 6+}-phases to nanocrystals of UO{sub 2} at doses as low as 0.006 dpa. The cumulative doses for the pure U{sup 6+}-phases, e.g., uranophane, at 0.1 and 1 m.y. are calculated to be 0.009 and 0.09 dpa using SRIM2003. However, with the incorporation of 1 wt.% {sup 239}Pu, the calculated doses reach 0.27 and {approx} 1.00 dpa in ten thousand and one hundred thousand years, respectively. Under oxidizing conditions, multiple cycles of radiation-induced decomposition to UO{sub 2} followed by alteration to U{sup 6}-phases should be further investigated to determine the fate of trace elements that may have been incorporated in the U{sup 6+}-phases.
Date: March 31, 2005
Creator: Utsunomiya, S. & Ewing, R.C.
Partner: UNT Libraries Government Documents Department
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Mineral Resources of Upper Missouri River Basin, Montana: Fort Peck Reservoir to Morony Dam

Description: Report issued by the Bureau of Mines discussing the minerals produced in the Missouri River Basin of Montana. The mineral resources of the area are investigated, analyzed, and presented. This report includes tables, maps, and illustrations.
Date: 1964
Creator: Hubbard, C. R.; Roby, Robert N.; Henkes, W. C. & Biggs, P.
Partner: UNT Libraries Government Documents Department
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