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dc.contributor.advisorGomez, Francisco Gustavo, 1971-eng
dc.contributor.authorRossman, Nathan R.eng
dc.coverage.spatialMissouri -- Taney Countyeng
dc.coverage.spatialMissouri -- Tumbling Creek Caveeng
dc.date.issued2010eng
dc.date.submitted2010 Springeng
dc.descriptionTitle from PDF of title page (University of Missouri--Columbia, viewed on June 18, 2010).eng
dc.descriptionThe entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file.eng
dc.descriptionThesis advisor: Dr. Francisco Gomez.eng
dc.descriptionM S. University of Missouri--Columbia 2010.eng
dc.description.abstractThe midcontinent of the U.S. is karstified and contains well developed subsurface drainage systems covered by beds of coarse-grained, poorly sorted sediments, resembling those in upland surface streams. Within Tumbling Creek Cave (TCC) in the Ozark Plateau of south-central Missouri, and Bear Cave Hollow (BCH), one of TCC's surface drainage streams, bed load entrainment and transport dynamics of mainly siliciclastic material, was evaluated using hydrological measurements and 670 painted tracer particles. Median surficial sediment grain size in the study reaches ranged from 39 to 71 mm in TCC, and from 24 to 37 mm in BCH with channel slopes ranging from 0.006 to 0.077 in TCC, and from 0.002 to 0.009 in BCH. Preliminary data from surveys of the longitudinal movement of tracers over a 10-month period indicate that minor amounts (0-13.2%) of coarse bed material in TCC are mobilized by relatively low flows (5-28% of bankfull) that recur somewhat frequently (less than 3.1 years). BCH transports a higher percentage of material (0-59.1%) during similar flows (2-29% of bankfull) and frequencies (less than 3.59 years). The use of the Shields (1936) criteria tends to over predict the critical shear stress required for entrainment of the largest mobilized grain sizes, while the empirical equation of Bagnold (1980) performs much better. Thus, the Shields equation may be better suited as a gage for complete mobilization of a grain size class across a reach, while the Bagnold (1980) equation may be better suited for estimating entrainment of grains from patches of the bed.eng
dc.description.bibrefIncludes bibliographical referenceseng
dc.format.extentvii, 117 pageseng
dc.identifier.merlinb7938478xeng
dc.identifier.oclc648993548eng
dc.identifier.urihttp://hdl.handle.net/10355/8080
dc.identifier.urihttps://doi.org/10.32469/10355/8080eng
dc.languageEnglisheng
dc.publisherUniversity of Missouri--Columbiaeng
dc.relation.ispartofcommunityUniversity of Missouri-Columbia. Graduate School. Theses and Dissertations. Theses. 2010 Theseseng
dc.rightsOpenAccess.eng
dc.rights.licenseThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License.
dc.subject.lcshRiver sedimentseng
dc.subject.lcshSediment transporteng
dc.subject.lcshKarst conservationeng
dc.subject.lcshStream ecologyeng
dc.subject.lcshHydrology, Karsteng
dc.titleEntrainment and transport of coarse stream bed material in a fluviokarst watershed, south-central Missouri : a tracer particle studyeng
dc.typeThesiseng
thesis.degree.disciplineGeological sciences (MU)eng
thesis.degree.grantorUniversity of Missouri--Columbiaeng
thesis.degree.levelMasterseng
thesis.degree.nameM.S.eng


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