{"NOAAStudyId":"11930","contactInfo":{"address":"325 Broadway, E/NE31","city":"Boulder","constraints":"Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site.","country":"USA","dataCenterUrl":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data","email":"paleo@noaa.gov","fax":"303-497-6513","longName":"National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce ","phone":"303-497-6280","postalCode":"80305-3328","shortName":"DOC/NOAA/NESDIS/NCEI","state":"CO","type":"CONTACT INFORMATION"},"contributionDate":"2011-08-31","dataPublisher":"NOAA","dataType":"ICE CORES","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/ice-core","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-icecore-11930.xml","doi":null,"earliestYearBP":217050,"earliestYearCE":-215100,"entryId":"noaa-icecore-11930","funding":[{"fundingAgency":"Australian Research Council  ","fundingGrant":"DP0345625"},{"fundingAgency":"Marie Curie Fellowship","fundingGrant":"MIF1-CT-2006-039529"},{"fundingAgency":"Australian Antarctic  Science Advisory Committee","fundingGrant":"1092, 2334"}],"investigators":"Vallelonga, P.; Gabrielli, P.; Balliana, E.; Wegner, A.; Delmonte, B.; Turetta, C.; Burton, G.; Vanhaecke, F.; Rosman, K.J.R.; Hong, S.; Boutron, C.F.; Cescon, P.; Barbante, C.","mostRecentYearBP":2010,"mostRecentYearCE":-60,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/11930","originalSource":null,"publication":[{"abstract":"A record of Pb isotopic compositions and Pb and Ba concentrations \r\nare presented for the EPICA Dome C ice core covering the past 220 ky, \r\nindicating the characteristics of dust and volcanic Pb deposition \r\nin central East Antarctica. Lead isotopic compositions are also \r\nreported in a suite of soil and loess samples from the Southern \r\nHemisphere (Australia, Southern Africa, Southern South America, \r\nNew Zealand, Antarctica) in order to evaluate the provenance \r\nof dust present in Antarctic ice. Lead isotopic compositions in \r\nDome C ice support the contention that Southern South America \r\nwas an important source of dust in Antarctica during the last \r\ntwo glacial maxima, and furthermore suggest occasional dust \r\ncontributions from local Antarctic sources. The isotopic signature \r\nof Pb in Antarctic ice is altered by the presence of volcanic Pb, \r\ninhibiting the evaluation of glacial-interglacial changes in dust \r\nsources and the evaluation of Australia as a source of dust \r\nto Antarctica. Consequently, an accurate evaluation of the \r\npredominant source(s) of Antarctic dust can only be obtained \r\nfrom glacial maxima, when dust-Pb concentrations were greatest. \r\nThese data confirm that volcanic Pb is present throughout \r\nAntarctica and is emitted in a physical phase that is free \r\nfrom Ba, while dust Pb is transported within a matrix \r\ncontaining Ba and other crustal elements.\r\n\r\n\r\n","author":null,"citation":"Vallelonga, P., P. Gabrielli, E. Balliana, A. Wegner, B. Delmonte, \r\nC. Turetta, G. Burton, F. Vanhaecke, K.J.R. Rosman, S. Hong, \r\nC.F. Boutron, P. Cescon, and C. Barbante. 2010. \r\nLead isotopic compositions in the EPICA Dome C ice core \r\nand Southern Hemisphere Potential Source Areas. \r\nQuaternary Science Reviews, Vol. 29, Issues 1-2, pp. 247-255,\r\nJanuary 2010.  doi:10.1016/j.quascirev.2009.06.019 \r\n(EPICA publication no. 226)\r\n\r\n","edition":null,"identifier":{"id":"10.1016/j.quascirev.2009.06.019 ","type":"doi","url":"http://dx.doi.org/10.1016/j.quascirev.2009.06.019 "},"issue":null,"journal":"Quaternary Science Reviews","pages":null,"pubRank":"1","pubYear":2010,"reportNumber":null,"title":"Lead isotopic compositions in the EPICA Dome C ice core  and Southern Hemisphere Potential Source Areas","type":"publication","volume":null}],"reconstruction":"N","scienceKeywords":null,"site":[{"NOAASiteId":"19998","geo":{"geoType":"Feature","geometry":{"coordinates":["-75.1","123.4"],"type":"POINT"},"properties":{"easternmostLongitude":"123.4","maxElevationMeters":"3240","minElevationMeters":"3240","northernmostLatitude":"-75.1","southernmostLatitude":"-75.1","westernmostLongitude":"123.4"}},"locationName":"Continent>Antarctica","mappable":"Y","paleoData":[{"NOAADataTableId":"20250","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>ice core>chemistry"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/epica_domec/edc2010pb-ba.txt","linkText":"edc2010pb-ba.txt","urlDescription":"Data","variables":[{"cvAdditionalInfo":null,"cvDataType":"ICE CORES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"calendar kiloyear before present","cvWhat":"age variable>age>ice age"},{"cvAdditionalInfo":null,"cvDataType":"ICE CORES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"hydrologic material>bulk ice","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil SMOW","cvWhat":"chemical composition>isotope>isotope ratio>delta 2H"},{"cvAdditionalInfo":null,"cvDataType":"ICE CORES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"hydrologic material>bulk ice","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"dimensionless","cvWhat":"chemical composition>isotope>isotope ratio>206Pb/207Pb"},{"cvAdditionalInfo":null,"cvDataType":"ICE CORES","cvDetail":null,"cvError":"95% confidence interval margin of error","cvFormat":"Numeric","cvMaterial":"hydrologic material>bulk ice","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"dimensionless","cvWhat":"chemical composition>isotope>isotope ratio>206Pb/207Pb"},{"cvAdditionalInfo":null,"cvDataType":"ICE CORES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"hydrologic material>bulk ice","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"dimensionless","cvWhat":"chemical composition>isotope>isotope ratio>208Pb/207Pb"},{"cvAdditionalInfo":null,"cvDataType":"ICE CORES","cvDetail":null,"cvError":"95% confidence interval margin of error","cvFormat":"Numeric","cvMaterial":"hydrologic material>bulk ice","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"dimensionless","cvWhat":"chemical composition>isotope>isotope ratio>208Pb/207Pb"},{"cvAdditionalInfo":null,"cvDataType":"ICE CORES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"hydrologic material>bulk ice","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"dimensionless","cvWhat":"chemical composition>isotope>isotope ratio>206Pb/204Pb"},{"cvAdditionalInfo":null,"cvDataType":"ICE CORES","cvDetail":null,"cvError":"95% confidence interval margin of error","cvFormat":"Numeric","cvMaterial":"hydrologic material>bulk ice","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"dimensionless","cvWhat":"chemical composition>isotope>isotope ratio>206Pb/204Pb"},{"cvAdditionalInfo":null,"cvDataType":"ICE CORES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"hydrologic material>bulk ice","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"picogram per gram","cvWhat":"chemical composition>element or single-element molecule>lead"},{"cvAdditionalInfo":null,"cvDataType":"ICE CORES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"hydrologic material>bulk ice","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"picogram per gram","cvWhat":"chemical composition>element or single-element molecule>barium"},{"cvAdditionalInfo":null,"cvDataType":"ICE CORES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"hydrologic material>bulk ice","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"dimensionless","cvWhat":"chemical composition>element or compound ratio>lead/barium"},{"cvAdditionalInfo":null,"cvDataType":"ICE CORES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"meter","cvWhat":"depth variable>depth"}]},{"NOAAKeywords":["earth science>paleoclimate>ice core>chemistry"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/epica_domec/edc2010pb-ba.xls","linkText":"edc2010pb-ba.xls","urlDescription":"Data","variables":[]}],"dataTableName":"EDCPbBa","dataTableNotes":null,"earliestYear":217050,"earliestYearBP":217050,"earliestYearCE":-215100,"mostRecentYear":2010,"mostRecentYearBP":2010,"mostRecentYearCE":-60,"species":[],"timeUnit":"cal yr BP"}],"siteName":"EPICA Dome C"}],"studyCode":null,"studyName":"EPICA Dome C 217KYr Lead Isotope and Barium Data","studyNotes":"EPICA Dome C, Antarctica ice core Pb and Ba concentrations, \nand Pb isotope ratios, for the period 217 - 2 KYrBP. \n\nSample ages calculated according to EDC3 chronology reported by \nParrenin et al. Climate of the Past Discussions, 2007, 3(2), pp.575-606. \ndD values from Jouzel et al. Science, 2007, v.317, pp.793-796. \n","version":"1.0","xmlId":"10033"}