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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 1 to 10 of 311 (0.029 seconds)Spelling suggestions: "subject:"lima county"" "subject:"lima bounty""
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GEOLOGY OF THE SOUTH COMOBABI MOUNTAINS AND KO VAYA HILLS, PIMA COUNTY, ARIZONABryner, Leonid, 1914- January 1958 (has links)
No description available.
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| 2 |
A petrographic and geochemical study of Silver Bell and Pima mining districts, Pima County, ArizonaMauger, Richard L. (Richard Leroy), 1936- January 1966 (has links)
No description available.
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| 3 |
The geology and ore deposits of the Helmet Peak area, Pima County, ArizonaMayuga, Manuel Nieva, 1917- January 1942 (has links)
No description available.
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| 4 |
The mineralogy of the Mildren and Steppe mining districts, Pima County, ArizonaWilliams, Sidney Arthur, 1933- January 1962 (has links)
No description available.
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| 5 |
Irish Potato Growing in the Irrigated Valleys of Pima CountyBrown, C. B. 10 1900 (has links)
This item was digitized as part of the Million Books Project led by Carnegie Mellon University and supported by grants from the National Science Foundation (NSF). Cornell University coordinated the participation of land-grant and agricultural libraries in providing historical agricultural information for the digitization project; the University of Arizona Libraries, the College of Agriculture and Life Sciences, and the Office of Arid Lands Studies collaborated in the selection and provision of material for the digitization project.
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| 6 |
The petrography of the Twin Hills, Pima County, ArizonaCochran, Horace Merle, 1892- January 1914 (has links)
No description available.
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| 7 |
Geology of the Montana mine area, Empire Mountains, ArizonaSopp, George Patrick, 1914- January 1940 (has links)
No description available.
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| 8 |
Geology of a portion of the Coyote-Quinlan complex, Pima county, ArizonaWargo, Joseph George, 1930- January 1954 (has links)
No description available.
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| 9 |
Geology of the Agua Verde hills, Pima county, ArizonaKerns, John Robert, 1930- January 1958 (has links)
No description available.
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| 10 |
Supergene mineralogy and processes in the San Xavier mine area, Pima County, ArizonaArnold, Leavitt Clark, 1940- January 1964 (has links)
This is a study of the supergene mineralogy of the San Xavier West mine located in the Pima mining district, Pima County, Arizona. The number and composition of secondary species collected are found to be closely related to the relative amounts of the various primary minerals and to the manner in which they were emplaced in the host rock. Supergene mineral species were selected that appeared to be in equilibrium with their environment, and certain assumptions are made concerning the stability fields of these minerals. The equilibrium conditions in most cases can be narrowed and often closely defined by combining the stability fields of several secondary minerals. On this basis, two acid environments and one alkaline environment are found to exist and are separable on the basis of mineralogy. The fields of chalcanthite and melanterite define a highly acid environment while those of goslarite and malachite define an environment of lower acidity. The association of calcite, rosasite, hemimorphite, and malachite indicate an alkaline environment. The acidity of the environments is principally determined by the amount of pyrite present, and pH may be lower than 3 if pyrite is abundant and reactive carbonate material lacking. Also, knowledge of stability relations allowed the history of enrichment and subsequent oxidation to be followed in a case where a transitional species has been removed from reaction by inclusions with gypsum.
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