Vertical temperature and chemical gradients in groundwater in the Tucson Basin, Arizona

Persistent Link:
http://hdl.handle.net/10150/191622
Title:
Vertical temperature and chemical gradients in groundwater in the Tucson Basin, Arizona
Author:
Mburu, Samuel Gathuru,1945-
Issue Date:
1975
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:
A study of vertical temperature and chemical gradients in groundwater was conducted, primarily to determine whether or not temperature gradients could be used as an index of vertical mixing in well bores and, hence, as a guide in the interpretation of point samples taken at various depths for chemical analysis. Measurements of temperature variation with depth in well bores were made with a pre-calibrated thermistor. Water samples were taken with point samplers at specific depths. Graphical comparisons of profiles of temperature, electrical conductivity, and bicarbonate and chloride contents indicate agreement with the assumed hypotheses of vertical flow and/or mixing in well bores for 50% of the wells sampled. Anomalies were found in the chemical gradients. Incomplete chemical analysis was noted as an important factor of the chemical anomalies. The water chemistry was relatively uniform and the variation with depth was not pronounced. pH studies indicated that the water is in, or close to, equilibrium with respect to calcite in most of the wells. The water is predominantly of sodium or calcium bicarbonate type in irrigation water class C2-S1. It was preliminarily concluded that vertical temperature gradients can be used as a guide in the interpretation of the chemistry of samples taken at various depths in a well bore.
Type:
Thesis-Reproduction (electronic); text
LCSH Subjects:
Hydrology.; Groundwater -- Research -- Arizona -- Tucson.
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.titleVertical temperature and chemical gradients in groundwater in the Tucson Basin, Arizonaen_US
dc.creatorMburu, Samuel Gathuru,1945-en_US
dc.contributor.authorMburu, Samuel Gathuru,1945-en_US
dc.date.issued1975en_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.abstractA study of vertical temperature and chemical gradients in groundwater was conducted, primarily to determine whether or not temperature gradients could be used as an index of vertical mixing in well bores and, hence, as a guide in the interpretation of point samples taken at various depths for chemical analysis. Measurements of temperature variation with depth in well bores were made with a pre-calibrated thermistor. Water samples were taken with point samplers at specific depths. Graphical comparisons of profiles of temperature, electrical conductivity, and bicarbonate and chloride contents indicate agreement with the assumed hypotheses of vertical flow and/or mixing in well bores for 50% of the wells sampled. Anomalies were found in the chemical gradients. Incomplete chemical analysis was noted as an important factor of the chemical anomalies. The water chemistry was relatively uniform and the variation with depth was not pronounced. pH studies indicated that the water is in, or close to, equilibrium with respect to calcite in most of the wells. The water is predominantly of sodium or calcium bicarbonate type in irrigation water class C2-S1. It was preliminarily concluded that vertical temperature gradients can be used as a guide in the interpretation of the chemistry of samples taken at various depths in a well bore.en_US
dc.description.notehydrology collectionen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.subject.lcshHydrology.en_US
dc.subject.lcshGroundwater -- Research -- Arizona -- Tucson.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.identifier.oclc212907012en_US
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