Thermal anomalies and the ground-water flow system south of the narrows, upper San Pedro Valley, Arizona
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azu_td_hy_e9791_1987_141_sip1_w.pdf
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azu_td_hy_e9791_1987_141_sip1_w.pdf
Issue Date
1987Keywords
Hydrology.Groundwater -- San Pedro River Valley (Mexico and Ariz.)
Groundwater flow -- San Pedro River Valley (Mexico and Ariz.)
Committee Chair
Davis, S. N.
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The University of Arizona.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.Abstract
Hydrologic conditions in the Upper San Pedro Valley are diverse and vary greatly in quantity and quality. The hydrogeologic system includes a permeable unconfined upper aquifer seperated from a lower aquifer by confining beds in the middle of the valley. Flowing wells are found in the St. David-Benson-Pomerene artesian area. Anomalously high ground-water temperatures down-gradient of this artesian area indicate a possible upward flowing portion of the confined aquifer. Temperature and head data were collected at 31 wells, mostly in the unconfined aquifer. Thermal gradients were measured at 20 wells, and areas of elevated heat flow were found to correspond with a rise in the underlying bedrock elevation. These data tend to support the hypothesis of upward advection of heat in the lower aquifer.Type
Thesis-Reproduction (electronic)text
Degree Name
M.S.Degree Level
mastersDegree Program
Hydrology and Water ResourcesGraduate College