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dc.contributor.authorAndrews, John W.,1955-
dc.creatorAndrews, John W.,1955-en_US
dc.date.accessioned2011-11-28T14:06:28Z
dc.date.available2011-11-28T14:06:28Z
dc.date.issued1983en_US
dc.identifier.urihttp://hdl.handle.net/10150/191793
dc.description.abstractChanges in the water content of unsaturated, fractured, crystalline rocks were measured with electrical resistivity and neutron techniques. Boreholes drilled into a quartz monzonite near Lochiel, Arizona were logged periodically from October 1982 through August 1983; and a borehole drilled into a dacitic ash-flow tuff near Superior, Arizona was logged periodically from March 1983 through August 1983. The boreholes, drilled from existing mine tunnels, were situated above the water table and six meters below the surface at the Lochiel site and 80 meters below the surface at the Superior site. The resistivity and neutron data indicate changes in the water content of the quartz monzonite were in response to surface precipitation. The response time was approximately six weeks when the overburden was initially dry. The resistivity and neutron data also correlate with water level data measured in a nearby saturated borehole. Similar trends were not observed at the Superior site. The resistivity and neutron data from Superior indicate the water content of the dacitic ash-flow tuff did not change during this study.
dc.language.isoenen_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.subject.lcshHydrology.en_US
dc.subject.lcshRocks -- Electric properties.en_US
dc.subject.lcshRocks -- Moisture.en_US
dc.subject.lcshRocks -- Testing.en_US
dc.subject.lcshGeology -- Arizona -- Santa Cruz County.en_US
dc.subject.lcshGeology -- Arizona -- Pinal County.en_US
dc.titleWater content of unsaturated, fractured, crystalline rocks from electrical resistivity and neutron loggingen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.contributor.chairEvans, Daniel D.en_US
dc.identifier.oclc213095518en_US
thesis.degree.grantorUniversity of Arizonaen_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineHydrology and Water Resourcesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.nameM.S.en_US
dc.description.notehydrology collectionen_US
refterms.dateFOA2018-06-14T16:20:00Z
html.description.abstractChanges in the water content of unsaturated, fractured, crystalline rocks were measured with electrical resistivity and neutron techniques. Boreholes drilled into a quartz monzonite near Lochiel, Arizona were logged periodically from October 1982 through August 1983; and a borehole drilled into a dacitic ash-flow tuff near Superior, Arizona was logged periodically from March 1983 through August 1983. The boreholes, drilled from existing mine tunnels, were situated above the water table and six meters below the surface at the Lochiel site and 80 meters below the surface at the Superior site. The resistivity and neutron data indicate changes in the water content of the quartz monzonite were in response to surface precipitation. The response time was approximately six weeks when the overburden was initially dry. The resistivity and neutron data also correlate with water level data measured in a nearby saturated borehole. Similar trends were not observed at the Superior site. The resistivity and neutron data from Superior indicate the water content of the dacitic ash-flow tuff did not change during this study.


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