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dc.contributor.advisorMcIntosh, Jennifer C.en_US
dc.contributor.authorBrown, Kyle
dc.creatorBrown, Kyleen_US
dc.date.accessioned2011-12-05T14:17:19Z
dc.date.available2011-12-05T14:17:19Z
dc.date.issued2009en_US
dc.identifier.urihttp://hdl.handle.net/10150/193418
dc.description.abstractThis study uses multiple isotopic (2H, 18O, 13C, 15NNO3, 18ONO3, 87Sr/86Sr) and age tracers (3H, 14C, CFCs), in conjunction with elemental chemistry, to address the following research question: How have present day anthropogenic activities (i.e. surface water irrigation and fertilizer application) and past climatic events (i.e. cataclysmic flooding from glacial Lake Missoula and other modes of discharge from Cordilleran Ice Sheet) impacted the hydrology and geochemistry of the Columbia River Basalt Aquifers (CRBAs) in central Washington? Large-scale irrigated agriculture over the past ~60 years has resulted in the transport of high NO3- irrigation waters moving downward in the oxic CRBAs at rates of several meters per decade with a lack of denitrification. Deeper pristine regional groundwater in the CRBAs is Late Pleistocene in age and likely remnant Cordilleran Ice Sheet-related recharge waters (i.e. glacial Lake Missoula floodwaters).
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.subjectClimate Changeen_US
dc.subjectColumbia River Basaltsen_US
dc.subjectIrrigationen_US
dc.subjectIsotopesen_US
dc.subjectMissoula Floodsen_US
dc.subjectWashingtonen_US
dc.titleThe Effects of Past Climate Change and Recent Agricultural Irrigation Recharge on the Sources, Ages, and Quality of Groundwater in the Columbia River Basalt Aquifers, Columbia Basin, Central Washingtonen_US
dc.typetexten_US
dc.typeElectronic Thesisen_US
dc.contributor.chairMcIntosh, Jennifer C.en_US
dc.identifier.oclc659753459en_US
thesis.degree.grantorUniversity of Arizonaen_US
thesis.degree.levelmastersen_US
dc.contributor.committeememberBaker, Victoren_US
dc.contributor.committeememberLohse, Kathleenen_US
dc.contributor.committeememberFerre, Tyen_US
dc.identifier.proquest10692en_US
thesis.degree.disciplineHydrologyen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.nameM.S.en_US
refterms.dateFOA2018-08-24T17:45:56Z
html.description.abstractThis study uses multiple isotopic (2H, 18O, 13C, 15NNO3, 18ONO3, 87Sr/86Sr) and age tracers (3H, 14C, CFCs), in conjunction with elemental chemistry, to address the following research question: How have present day anthropogenic activities (i.e. surface water irrigation and fertilizer application) and past climatic events (i.e. cataclysmic flooding from glacial Lake Missoula and other modes of discharge from Cordilleran Ice Sheet) impacted the hydrology and geochemistry of the Columbia River Basalt Aquifers (CRBAs) in central Washington? Large-scale irrigated agriculture over the past ~60 years has resulted in the transport of high NO3- irrigation waters moving downward in the oxic CRBAs at rates of several meters per decade with a lack of denitrification. Deeper pristine regional groundwater in the CRBAs is Late Pleistocene in age and likely remnant Cordilleran Ice Sheet-related recharge waters (i.e. glacial Lake Missoula floodwaters).


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