Recharge properties of the Tucson Basin aquifer as reflected by the distribution of a stable isotope

Persistent Link:
http://hdl.handle.net/10150/191686
Title:
Recharge properties of the Tucson Basin aquifer as reflected by the distribution of a stable isotope
Author:
Gallaher, Bruce Morris.
Issue Date:
1979
Publisher:
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:
The Tucson Basin is southeastern Arizona is a semi-arid alluvial basin. Winter precipitation is derived principally from the Pacific Ocean, and summer precipitation originates mostly from the Gulf of Mexico. Previous investigations have noted that the isotopic composition of the two rainy seasons and of associated floodflows were significantly different. Once infiltrated, the bimodally distributed isotopic waters represent excellent natural tracers for distinguishing seasonal and areal recharge to the groundwater regime. This study examines the distribution of the ratios of ¹⁸0/¹⁶0 in natural waters within the Basin and accounts for that distribution in terms of a possible model of groundwater recharge and circulation. The distribution of the oxygen-18 isotope is hypothesized to be principally a function of the location of groundwater recharge zones, and regional groundwater flow patterns. Active recharge zones are indicated by high isotopic gradients along the perimeter of the Santa Catalina Mountains and along the Santa Cruz River. The gradients also suggest that limited transverse groundwater mixing appears to be occurring within the Tucson Basin Aquifer. On a regional scale, recharge to the Tucson Basin appears to be predominately derived from winter precipitation.
Type:
Thesis-Reproduction (electronic); text
LCSH Subjects:
Hydrology.; Groundwater -- Arizona -- Tucson Basin -- Measurement.; Artificial groundwater recharge -- Arizona -- Tucson Basin.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Hydrology and Water Resources; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Simpson, Eugene S.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleRecharge properties of the Tucson Basin aquifer as reflected by the distribution of a stable isotopeen_US
dc.creatorGallaher, Bruce Morris.en_US
dc.contributor.authorGallaher, Bruce Morris.en_US
dc.date.issued1979en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © 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.description.abstractThe Tucson Basin is southeastern Arizona is a semi-arid alluvial basin. Winter precipitation is derived principally from the Pacific Ocean, and summer precipitation originates mostly from the Gulf of Mexico. Previous investigations have noted that the isotopic composition of the two rainy seasons and of associated floodflows were significantly different. Once infiltrated, the bimodally distributed isotopic waters represent excellent natural tracers for distinguishing seasonal and areal recharge to the groundwater regime. This study examines the distribution of the ratios of ¹⁸0/¹⁶0 in natural waters within the Basin and accounts for that distribution in terms of a possible model of groundwater recharge and circulation. The distribution of the oxygen-18 isotope is hypothesized to be principally a function of the location of groundwater recharge zones, and regional groundwater flow patterns. Active recharge zones are indicated by high isotopic gradients along the perimeter of the Santa Catalina Mountains and along the Santa Cruz River. The gradients also suggest that limited transverse groundwater mixing appears to be occurring within the Tucson Basin Aquifer. On a regional scale, recharge to the Tucson Basin appears to be predominately derived from winter precipitation.en_US
dc.description.notehydrology collectionen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.subject.lcshHydrology.en_US
dc.subject.lcshGroundwater -- Arizona -- Tucson Basin -- Measurement.en_US
dc.subject.lcshArtificial groundwater recharge -- Arizona -- Tucson Basin.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineHydrology and Water Resourcesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.chairSimpson, Eugene S.en_US
dc.contributor.committeememberDavis, Stanley N.en_US
dc.identifier.oclc213275665en_US
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