THE EVALUATION OF SUPERGENE COPPER DEPOSITS FOR IN SITU LEACHING.
dc.contributor.advisor | Peters, William C. | en_US |
dc.contributor.author | HACKMAN, DAVID BRENT. | |
dc.creator | HACKMAN, DAVID BRENT. | en_US |
dc.date.accessioned | 2011-10-31T17:09:50Z | |
dc.date.available | 2011-10-31T17:09:50Z | |
dc.date.issued | 1982 | en_US |
dc.identifier.uri | http://hdl.handle.net/10150/184492 | |
dc.description.abstract | Copper from dump, heap, and in situ leaching accounts for about 15% of United States copper production. In situ leaching is the least understood and most difficult to evaluate of these leaching methods. Several types of supergene copper deposits are derived from porphyry copper systems depending on the geologic and climatic factors involved in the formation of a deposit. The geologic and climatic factors involved in the formation of a deposit. The geologic evaluation of a deposit should provide most of the basic information required to access a deposit for in situ leaching. Metallurgical testing can determine the leachability and acid consumption of the ore as well as the need for an oxidizing agent through the use of agitation and column leaching tests. The location of the deposit with respect to the water table determines the type of ground preparation required. Hydraulic fracturing can be used for deposits below the water table and blasting or caving can be used for deposits above the water table. Fluid flow through the deposit depends on the method of application, the permeability of the deposit, and the method of egress from the deposit. The leaching of a copper "oxide" deposit depends on the strength and volume of sulfuric acid which reaches the ore. The leaching of a copper sulfide deposit depends on an oxidant as well as sulfuric acid reaching the ore. | |
dc.language.iso | en | en_US |
dc.publisher | The University of Arizona. | en_US |
dc.rights | Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author. | en_US |
dc.subject | Copper mines and mining -- Arizona. | en_US |
dc.subject | Copper mines and mining -- Mexico -- Sonora (State) | en_US |
dc.subject | Copper ores -- Arizona. | en_US |
dc.subject | Copper ores -- Mexico -- Sonora (State) | en_US |
dc.subject | Leaching. | en_US |
dc.title | THE EVALUATION OF SUPERGENE COPPER DEPOSITS FOR IN SITU LEACHING. | en_US |
dc.type | text | en_US |
dc.type | Dissertation-Reproduction (electronic) | en_US |
dc.identifier.oclc | 682947868 | en_US |
thesis.degree.grantor | University of Arizona | en_US |
thesis.degree.level | doctoral | en_US |
dc.contributor.committeemember | Rieber, Michael | en_US |
dc.contributor.committeemember | Glass, Charles E. | en_US |
dc.contributor.committeemember | Harris, DeVerle P. | en_US |
dc.contributor.committeemember | Harshbarger, John W. | en_US |
dc.identifier.proquest | 8227353 | en_US |
thesis.degree.discipline | Mining and Geological Engineering | en_US |
thesis.degree.discipline | Graduate College | en_US |
thesis.degree.name | Ph.D. | en_US |
dc.description.note | This item was digitized from a paper original and/or a microfilm copy. If you need higher-resolution images for any content in this item, please contact us at repository@u.library.arizona.edu. | |
dc.description.admin-note | Original file replaced with corrected file April 2023. | |
refterms.dateFOA | 2018-06-27T15:07:53Z | |
html.description.abstract | Copper from dump, heap, and in situ leaching accounts for about 15% of United States copper production. In situ leaching is the least understood and most difficult to evaluate of these leaching methods. Several types of supergene copper deposits are derived from porphyry copper systems depending on the geologic and climatic factors involved in the formation of a deposit. The geologic and climatic factors involved in the formation of a deposit. The geologic evaluation of a deposit should provide most of the basic information required to access a deposit for in situ leaching. Metallurgical testing can determine the leachability and acid consumption of the ore as well as the need for an oxidizing agent through the use of agitation and column leaching tests. The location of the deposit with respect to the water table determines the type of ground preparation required. Hydraulic fracturing can be used for deposits below the water table and blasting or caving can be used for deposits above the water table. Fluid flow through the deposit depends on the method of application, the permeability of the deposit, and the method of egress from the deposit. The leaching of a copper "oxide" deposit depends on the strength and volume of sulfuric acid which reaches the ore. The leaching of a copper sulfide deposit depends on an oxidant as well as sulfuric acid reaching the ore. |