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dc.contributor.authorRose, Sethen_US
dc.contributor.authorFullagar, Paul D.en_US
dc.contributor.editorHatcher, Kathryn J.en_US
dc.date.accessioned2013-06-18T09:12:31Z
dc.date.available2013-06-18T09:12:31Z
dc.date.issued2005-04
dc.identifier.urihttp://hdl.handle.net/1853/47787
dc.description.abstractStrontium isotope ratios, strontium ion concentrations, major ion concentrations, and stream discharge were measured within the Middle Oconee River basin upstream of Arcade, Georgia during the period 2003- 2004. Strontium isotope ratios (87Sr/86Sr) in stream base flow were between 0.7126 and 0.7172, considerably higher than rainfall (0.7117) and shallow ground water (0.7120). This indicates that Sr and by inference other weathering products in base flow are derived principally from weathering, rather than ion exchange in the shallow soil zone. Unlike all other parameters, strontium isotope ratios were temporally invariant within a given watershed, independent of seasonal variations with respect to base flow discharge. Strontium isotope ratios were significantly different in all four watersheds and therefore provide the best geochemical “tracer” for base flow. 87Sr/86Sr ratios increased as a function of basin area, independent of Sr ion concentrations, probably as the result of the increased contribution from rubidium-bearing minerals such as K-feldspar, muscovite, and biotite.en_US
dc.description.sponsorshipSponsored by: Georgia Environmental Protection Division U.S. Geological Survey, Georgia Water Science Center U.S. Department of Agriculture, Natural Resources Conservation Service Georgia Institute of Technology, Georgia Water Resources Institute The University of Georgia, Water Resources Facultyen_US
dc.language.isoen_USen_US
dc.publisherGeorgia Institute of Technologyen_US
dc.relation.ispartofseriesGWRI2005. Ground water and coastalen_US
dc.subjectWater resources managementen_US
dc.subjectWeathering productsen_US
dc.subjectStrontium isotopesen_US
dc.titleStrontium isotope ratios in stream base flow within the Georgia Piedmont provinceen_US
dc.typeProceedingsen_US
dc.contributor.corporatenameGeorgia State Universityen_US
dc.contributor.corporatenameUniversity of North Carolina at Chapel Hillen_US
dc.publisher.originalInstitute of Ecology, The University of Georgiaen_US
dc.embargo.termsnullen_US


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