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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":"2007-07-01","dataPublisher":"NOAA","dataType":"PALEOCEANOGRAPHY","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/paleoceanography","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-ocean-6414.xml","doi":null,"earliestYearBP":35810,"earliestYearCE":-33860,"entryId":"noaa-ocean-6414","funding":[],"investigators":"Kienast, S.S.; Kienast, M.; Mix, A.C.; Calvert, S.E.; Francois, R.","mostRecentYearBP":1476,"mostRecentYearCE":474,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/6414","originalSource":null,"publication":[{"abstract":"Application of the 230Th normalization method to estimate sediment burial fluxes in six cores from the eastern equatorial Pacific (EEP) reveals that bulk sediment and organic carbon fluxes display a coherent regional pattern during the Holocene that is consistent with modern oceanographic conditions, in contrast with estimates of bulk mass accumulation rates (MARs) derived from core chronologies. Two nearby sites (less than 10 km apart), which have different MARs, show nearly identical 230Th-normalized bulk fluxes. Focusing factors derived from the 230Th data at the foot of the Carnegie Ridge in the Panama Basin are >2 in the Holocene, implying that lateral sediment addition is significant in this part of the basin. New geochemical data and existing literature provide evidence for a hydrothermal source of sediment in the southern part of the Panama Basin and for downslope transport from the top of the Carnegie Ridge. The compilation of core records suggests that sediment focusing is spatially and temporally variable in the EEP. During oxygen isotope stage 2 (OIS 2, from 13ŋ27 ka BP), focusing appears even higher compared to the Holocene at most sites, similar to earlier findings in the eastern and central equatorial Pacific. The magnitude of the glacial increase in focusing factors, however, is strongly dependent on the accuracy of age models. We offer two possible explanations for the increase in glacial focusing compared to the Holocene. The first one is that the apparent increase in lateral sediment redistribution is partly or even largely an artifact of insufficient age control in the EEP, while the second explanation, which assumes that the observed increase is real, involves enhanced deep sea tidal current flow during periods of low sea level stand.","author":null,"citation":"Kienast, S.S., M. Kienast, A.C. Mix, S.E. Calvert, and R. Francois. 2007. Thorium-230 normalized particle flux and sediment focusing in the Panama Basin region during the last 30,000 years. Paleoceanography, 22, PA2213. doi:10.1029/2006PA001357.","edition":null,"identifier":{"id":"10.1029/2006PA001357","type":"doi","url":"http://dx.doi.org/10.1029/2006PA001357"},"issue":null,"journal":"Paleoceanography","pages":null,"pubRank":"1","pubYear":2007,"reportNumber":null,"title":"Thorium-230 normalized particle flux and sediment focusing in the Panama Basin region during the last 30,000 years","type":"publication","volume":"22"}],"reconstruction":"N","scienceKeywords":null,"site":[{"NOAASiteId":"19114","geo":{"geoType":"Feature","geometry":{"coordinates":["-3.62","-83.97"],"type":"POINT"},"properties":{"easternmostLongitude":"-83.97","maxElevationMeters":"-3210","minElevationMeters":"-3210","northernmostLatitude":"-3.62","southernmostLatitude":"-3.62","westernmostLongitude":"-83.97"}},"locationName":"Ocean>Pacific Ocean>Eastern Pacific Ocean","mappable":"Y","paleoData":[{"NOAADataTableId":"9575","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleocean>physical properties","earth science>paleoclimate>paleocean>age control","earth science>paleoclimate>paleocean>lithology","earth science>paleoclimate>paleocean>radiogenic isotope"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/kienast2007","linkText":"kienast2007","urlDescription":"Original Data and Full Metadata","variables":[]},{"NOAAKeywords":["earth science>paleoclimate>paleocean>physical properties","earth science>paleoclimate>paleocean>age control","earth science>paleoclimate>paleocean>radiogenic isotope","earth science>paleoclimate>paleocean>lithology"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/t163-31p-tab.txt","linkText":"t163-31p-tab.txt","urlDescription":"Alternate Format Data","variables":[{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"centimeter","cvWhat":"depth variable>depth"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"radiocarbon year before present","cvWhat":"age variable>age"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>bulk geological material>sediment","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"disintegration per minute per gram","cvWhat":"chemical composition>isotope>single isotope concentration>230Th"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>bulk geological material>sediment","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"disintegration per minute per gram","cvWhat":"chemical composition>isotope>single isotope concentration>232Th"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>bulk geological material>sediment","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"disintegration per minute per gram","cvWhat":"chemical composition>isotope>single isotope concentration>238U"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>bulk geological material>sediment","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"gram per square centimeter per kiloyear","cvWhat":"formation property>formation rate>accumulation rate"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>bulk geological material>sediment","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"weight percent","cvWhat":"chemical composition>element or single-element molecule>carbon>organic carbon"},{"cvAdditionalInfo":"mass accumulation rate","cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>bulk geological material>sediment","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"gram per square centimeter per kiloyear","cvWhat":"chemical composition>element or single-element molecule>carbon>organic carbon"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>bulk geological material>sediment","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"disintegration per minute per gram","cvWhat":"chemical composition>isotope>single isotope concentration>230Th>230Th excess"}]}],"dataTableName":"T163-31P","dataTableNotes":"ME005-24JC: Chronology based on carbonate correlation to core Y69-71P, backed up by radiocarbon dates. 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