Technical Report Archive & Image Library (TRAIL) - 43 Matching Results

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The Asbestos Industry

Description: Report issued by the Bureau of Mines over the production and use of asbestos. Descriptions of the different types of asbestos are discussed. Its applications are also discussed. This report includes tables, illustrations, and photographs.
Date: 1955
Creator: Bowles, Oliver
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Coal Industry of Brazil: Part 2. Technology of Mining and Preparation

Description: Report issued by the Bureau of Mines discussing the coal industry in Brazil. An emphasis is placed on the technological advancements of mining and preparation of coal. This report includes tables, maps, illustrations, and photographs.
Date: 1951
Creator: Good, John E.; Abreu, Alvaro & Fraser, Thomas
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Coals of Chile

Description: From Introduction: "The purpose of this investigation was to determine whether the coal from beds mined in the Schwager and Lota mines will produce metallurgical coke suitable for use in the blast furnaces at the proposed steel plant at Conception, and whether the quality of the lower-rank coals from other areas in Chile, especially those in Magallanes, where the large coal reserves of Chile appear to exist; can be improved by processing."
Date: 1948
Creator: Toenges, Albert L.; Kelly, Leon W.; Davis, J. D.; Reynolds, D. A.; Fraser, Thomas; Crentz, W. L. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Geology and Mineral Deposits of the Venezuelan Guayana Shield

Description: Abstract: The U.S. Geological Survey and the Corporación Venezolana de Guayana, Técnica Minera, C.A., conducted a cooperative mapping, exploration, and mineral resource estimation study in Venezuela from 1987 to 1992. The work was conducted in the Venezuelan Guayana Shield, an Archean to Early and Middle Proterozoic craton in southern and eastern Venezuela of almost 415,000 km2 that is mostly covered by jungle and savanna. Results obtained from this project contribute a new understanding of the… more
Date: 1995
Creator: Sidder, Gary B.; García Gerdes, Andrés E. & Stoeser, J. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Magnesite Deposits of Central Ceará, Brazil

Description: From introduction: The purpose of this study was to investigate the quantity and quality of [Central Ceara, Brazil] magnesite, and the writer concludes that this group of deposits constitutes one of the major reserves of high-grade magnesite in the Western Hemisphere. The ore could be used in the production of any commercial grade of magnesia with little or no beneficiation. Soil and alluvial overburden is thin between widespread outcrops, so all the deposits could be mined from open pits.
Date: 1950
Creator: Bodenlos, Alfred J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Radioactive Manganese Occurrences in the Lower Rio Itapicurú Valley, Bahia, Brazil

Description: From abstract: Radioactive manganese deposits have been found in two swamps and at one locality on the northeast bank of the Rio Itapicuru near Mosquete, municipio of Itapicuru, State of Bahia, Brazil. The occurrences are related to warm springs and consist of surficial manganiferous sinter and of sandstone impregnated with manganese.
Date: April 1958
Creator: Haynes, Donald D.; Mau, Henry & White, Max Gregg
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Radioactive Source Materials in Los Estados Unidos de Venezuela

Description: From Abstract: "This report summarizes data available on radioactive source materials in Los Estados Unidos de Venezuela accumulated by geologists of the Dirección Técnica de Geología and antecedent agencies prior to June 1951, and by the writers from June to November 1951."
Date: February 1953
Creator: Wyant, Donald G. & Sharp, William N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reconnaissance for Radioactive Minerals in the Southern Part of Brazil

Description: From introduction: This report describes the results of reconnaissance for radioactivity of rocks, exclusive of coal, in the States of Rio de Janeiro, Sao Paulo, Parana, Santa Catarina and Rio Grande do Sul during the years 195 through 1956. Reports on reconnaissance and detailed studies of uraniferous coal are being prepared for publication. This report concerns work performed by the Brazilian National Nuclear Energy Commission and the United States Geological Survey (on behalf of the United S… more
Date: January 1957
Creator: Pierson, Charles Thomas; Haynes, Donald D. & Ribeiro Filho, Evaristo
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reconnaissance for Uranium in the Antofagasta Area, Province of Antofagasta, Chile

Description: Abstract: The Antofagasta area, in the Province of Antofagasta, Chile, was investigated in September and August 1958 by two field parties of the U.S. Atomic Energy Commission and the Instituto de Investigaciones Geológicas de Chile, who were working under a cooperative agreement between the teo governments. the purpose of the investigation was to examine the area for the possible occurrence of commercial deposits of uranium.
Date: April 1961
Creator: Knowles, Paul H.; Bowes, William A.; C., Mario Serrano & S., Rudolfo Grüenwald
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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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
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reconnaissance for Uranium in the Coal of São Paulo, Santa Catarina, and Rio Grande do Sul, Brazil

Description: Abstract: Uranium-bearing coal and carbonaceous shale .of the Rio Bonito formation of Pennsylvanian age have been found in the States of Sao Paulo, Santa Catarina, and Rio Grande do Sul, Brazil. The uranium oxide content of the samples collected in the State of Sao Paulo ranges from 0.001 percent to 0.082 percent. The samples collected in Santa Catarina averaged about 0.002 percent uranium oxide; those collected in Rio Grande do Sul, about 0.003 percent uranium oxide. Since the field and labora… more
Date: January 1958
Creator: Haynes, Donald D.; Pierson, Charles T. & White, Max G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reconnaissance for Uranium in the Colimapu Formation, Chile

Description: Discussing Laboratory and field studies that show that the geologic history and environment of the Colimapu formation of central Chile differed considerably from those of the uranium-bearing Diamantiano formation of Argentina with which the Upper Colimapu has been correlated.
Date: October 1962
Creator: Bowes, William A.; Knowles, Paul H.; Brito, Aldo Moraga; H., Erik Klohn & C., Mario Serrano
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reconnaissance for Uranium in the Copiapo Area, Province of Atacama, Chile

Description: Abstract: The area was examined for a period of about two weeks during October and November 1958 by geologists of the U.S. Atomic Energy Commission and the Instituto de Investigaciones Geológicas de Chile for the purpose of evaluating known uranium occurrences and determining the overall potential of the region for uranium.
Date: June 1962
Creator: Bowes, William A.; Knowles, Paul H.; C., Mario Serrano & S., Rudolfo Grüenwald
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reconnaissance for Uranium in the Cuzco-Anta Area, Department of Cuzco, Peru

Description: Introduction: The specific purpose of the work was to learn whether the selenium indicated by the presence of Astragalus g. was uniformly distributed in one or more formations, i.e., probably syngenetic, or whether it was spatially and, therefore genetically, related to alteration.
Date: March 1959
Creator: Gabelman, John W. & Jordán O., Victor
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reconnaissance for Uranium in the Elqui-Vicuña area, Province of Coquimbo, Chile

Description: Abstract: The Elqui-Vicuna area, Coquimbo province, Chile, was selected for uranium reconnaissance on the basis of two known uranium occurrences and favorable area-wide geologic indications of the possible presence of uranium in commercial quantities.
Date: September 1958
Creator: Bowes, William A.; Knowles, Paul H.; C., Mario Serrano & H., Erik Klohn
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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