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dc.contributor.authorVanPelt, Derek.
dc.creatorVanPelt, Derek.en_US
dc.date.accessioned2011-11-28T13:52:09Z
dc.date.available2011-11-28T13:52:09Z
dc.date.issued1998en_US
dc.identifier.urihttp://hdl.handle.net/10150/191357
dc.description.abstractA water resources assessment of the Casa Grande Ruins National Monument (CAGR) was conducted using historical and recent data. The data were sorted and analyzed to determine whether the monument grounds have the potential for subsidence, and in particular, differential subsidence. Further research was conducted to ascertain the cause of the loss of the mesquite woodland on the monument grounds in the 1940's. To determine the potential for subsidence at the monument, a subsidence model was constructed based on geology developed from well logs of local wells. The model allowed the water table to fall from the predevelopment level to the present, and to possible future levels. The region of the Casa Grande Ruins National Monument has the potential for subsidence and differential subsidence on a geological basis, should the water table drop sufficiently. The majority of the mesquites on the monument grounds died in the 1940's. This has been attributed to groundwater pumping that lowered the groundwater table, but may also have been caused by drought, loss of a perched aquifer, disruption of overland flow by construction around monument grounds, and construction of the contour dykes at CAGR.
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.lcshWater table -- Arizona -- Casa Grande National Monument.en_US
dc.subject.lcshSubsidences (Earth movements) -- Arizona -- Casa Grande National Monument.en_US
dc.titleAssessing impacts of dropping water table in Casa Grande Ruins National Monumenten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.contributor.chairMaddock, Thomasen_US
dc.identifier.oclc228304832en_US
thesis.degree.grantorUniversity of Arizonaen_US
thesis.degree.levelmastersen_US
dc.contributor.committeememberMacNish, Roberten_US
dc.contributor.committeememberInce, Simonen_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.dateFOA2018-06-04T15:04:07Z
html.description.abstractA water resources assessment of the Casa Grande Ruins National Monument (CAGR) was conducted using historical and recent data. The data were sorted and analyzed to determine whether the monument grounds have the potential for subsidence, and in particular, differential subsidence. Further research was conducted to ascertain the cause of the loss of the mesquite woodland on the monument grounds in the 1940's. To determine the potential for subsidence at the monument, a subsidence model was constructed based on geology developed from well logs of local wells. The model allowed the water table to fall from the predevelopment level to the present, and to possible future levels. The region of the Casa Grande Ruins National Monument has the potential for subsidence and differential subsidence on a geological basis, should the water table drop sufficiently. The majority of the mesquites on the monument grounds died in the 1940's. This has been attributed to groundwater pumping that lowered the groundwater table, but may also have been caused by drought, loss of a perched aquifer, disruption of overland flow by construction around monument grounds, and construction of the contour dykes at CAGR.


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