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dc.contributor.advisorDavid McGee.en_US
dc.contributor.authorFujimori, Jessica E. (Jessica Eileen)en_US
dc.contributor.otherMassachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences.en_US
dc.coverage.spatialls-----en_US
dc.date.accessioned2014-10-08T15:21:16Z
dc.date.available2014-10-08T15:21:16Z
dc.date.copyright2010en_US
dc.date.issued2014en_US
dc.identifier.urihttp://hdl.handle.net/1721.1/90663
dc.descriptionThesis: S.B., Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, June 2014.en_US
dc.description"May 12, 2014." Cataloged from PDF version of thesis.en_US
dc.descriptionIncludes bibliographical references (page 20).en_US
dc.description.abstractWe measured IRD fluxes from 22-5 ka BP in two sediment cores from the Scotia Sea using two different methods. The first, commonly used method, uses the linear sedimentation rate (LSR), dry bulk density, and weight percent of IRD in the sample. The second uses ²³⁰ThTh normalization, which has been proposed as an improved way to determine sediment fluxes in sites with significant lateral redistribution. We found that IRD fluxes calculated using the LSR produced a chronology in closer agreement with prior studies than those calculated using ²³⁰ThTh normalization. Based on the differences in records between the two cores, we conclude that IRD flux records more likely provide information about local ice sheet dynamics than about ice sheet behavior as a whole. IRD flux records may be influenced by differences in local sediment focusing, currents, and distance from the ice sheet.en_US
dc.description.statementofresponsibilityby Jessica E. Fujimori.en_US
dc.format.extent20 pagesen_US
dc.language.isoengen_US
dc.publisherMassachusetts Institute of Technologyen_US
dc.rightsM.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.en_US
dc.rights.urihttp://dspace.mit.edu/handle/1721.1/7582en_US
dc.subjectEarth, Atmospheric, and Planetary Sciences.en_US
dc.titleIce-rafted debris in the Southern Ocean : potential uses and limitations of ²³⁰Th-normalized fluxesen_US
dc.title.alternativePotential uses and limitations of ²³⁰Th-normalized fluxesen_US
dc.typeThesisen_US
dc.description.degreeS.B.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences.en_US
dc.identifier.oclc890404668en_US


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