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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 231 to 240 of 462 (0.121 seconds)Spelling suggestions: "subject:"lines anda mineral resources."" "subject:"lines ando mineral resources.""
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Reconnaissance geology of the Mississippian Leadville limestone and implications for mineralization controls, Fulford mining district, Eagle County, ColoradoRichards, Billy D January 2011 (has links)
Typescript (photocopy). / Digitized by Kansas State University Libraries
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| 232 |
Geologic and economic study of ultramafic complexes of the coast of Guerrero, MexicoDelgado-Argote, Luis Alberto, 1953- January 1986 (has links)
No description available.
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| 233 |
Geology and geochemistry of Proterozoic volcanic rocks bearing massive sulfide ore deposits, Bagdad, ArizonaRobison, Lori Carol, 1955- January 1987 (has links)
No description available.
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| 234 |
Ore controls of the San Xavier mine, Pima County, ArizonaWilson, Clyde August, 1932- January 1960 (has links)
No description available.
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| 235 |
The geology and mineralization of the Sedimentary Hills Area, Pima County, ArizonaBennett, Paul J. (Paul Jerome), 1934- January 1957 (has links)
No description available.
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| 236 |
The geology and mineralization of the Northern Plomosa District, La Paz County, ArizonaDuncan, John Towner, 1960- January 1990 (has links)
No description available.
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| 237 |
The secondary dispersion of tungsten in some southern Arizona tungsten districtsFredericksen, Rick Stewart, 1949- January 1974 (has links)
No description available.
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| 238 |
Economic geology of the Alamos Mining District, Sonora, MexicoVazquez Perez, Adalberto, 1944- January 1975 (has links)
No description available.
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| 239 |
A comparison of churn and diamond drilling in the Quijotoa mining district, Pima county, ArizonaArozena, Joe de January 1917 (has links)
No description available.
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| 240 |
Cloning, Sequencing and Partial Characterization of the Accessory Gene Region of Plasmid pTC-F14 isolated from the Biomining Bacterium Acidithiobacillus caldus f.Goldschmidt, Gunther Karl 03 1900 (has links)
Thesis (MSc (Microbiology))--University of Stellenbosch, 2005. / Plasmid pTC-F14 is a 14.2kb promiscuous, broad-host range IncQ-like mobilizable plasmid isolated from Acidithiobacillus caldus f. At. caldus is a member of a consortium of bacteria (along with Acidithiobacillus ferrooxidans and Leptospirilum ferrooxidans) that is used industrially for decomposing metal sulphide ores and concentrates at temperatures of 40ºC or below which is now a well-established industrial process to recover metals from certain copper, uranium and gold-bearing minerals or mineral concentrates. These biomining microbes are usually obligately acidophilic, autotrophic, usually aerobic iron- or sulphur-oxidizing chemolithotrophic bacteria. Their remarkable physiology allows them to inhabit an ecological niche that is largely inorganic and differs from those environments populated by the more commonly studied non-acidophilic heterotrophic bacteria. At. caldus, is a moderately thermophilic (45 to 50ºC), highly acidophilic (pH1.5 to 2.5) sulphur-oxidizing bacterium, and its role as one of the major players in the industrial decomposition of metal sulphide ores has become evident in recent years. At. caldus f from which pTC-F14 was isolated was found to be one of two dominant organisms in a bacterial consortium undergoing pilot-scale testing for the commercial extraction of nickel from ores.
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