{"xmlId":"9070","NOAAStudyId":"10417","studyName":"Pigmy Basin MD02-2553 Holocene Mineralogical and Geochemical Data","doi":"https://doi.org/10.25921/5ch8-gd93","uuid":"7e7f142c-f104-4eb8-aeba-8441b2532d0e","dataPublisher":"NOAA","contactInfo":{"type":"CONTACT INFORMATION","shortName":"DOC/NOAA/NESDIS/NCEI","longName":"National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce ","address":"325 Broadway, E/NE31","city":"Boulder","state":"CO","postalCode":"80305-3328","country":"USA","dataCenterUrl":"https://www.ncei.noaa.gov/products/paleoclimatology","email":"paleo@noaa.gov","phone":"828-271-4800","fax":null,"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."},"dataType":"PALEOCEANOGRAPHY","investigators":"Montero-Serrano, J.C.; Bout-Roumazeilles, V.; Sionneau, T.; Tribovillard, N.; Bory, A.; Flower, B.P.; Riboulleau, A.; Martinez, P.; Billy, I.","investigatorDetails":[{"firstName":"Jean Carlos","lastName":"Montero-Serrano","initials":"J.C.","orcId":"0000-0001-7896-6284"},{"firstName":"Viviane","lastName":"Bout-Roumazeilles","initials":"V.","orcId":"0000-0001-6917-818X"},{"firstName":"Thomas","lastName":"Sionneau","initials":"T.","orcId":null},{"firstName":"Nicolas","lastName":"Tribovillard","initials":"N.","orcId":"0000-0003-3493-5579"},{"firstName":"Aloys","lastName":"Bory","initials":"A.","orcId":"0000-0002-0251-6372"},{"firstName":"Benjamin","lastName":"Flower","initials":"B.P.","orcId":null},{"firstName":"Armelle","lastName":"Riboulleau","initials":"A.","orcId":"0000-0002-2717-8330"},{"firstName":"Philippe","lastName":"Martinez","initials":"P.","orcId":"0000-0002-9825-2032"},{"firstName":"Isabelle","lastName":"Billy","initials":"I.","orcId":null}],"version":"1.0","funding":[{"fundingAgency":"European Union","fundingGrant":"E06D100913VE"}],"studyNotes":"High-resolution Holocene mineralogical and geochemical data \nfrom core MD02-2553, Pigmy Basin, northern Gulf of Mexico, \nanalyzed for Holocene sediment sourcing in the Mississippi River \ndrainage.  \n\nThe Holocene section of the core MD02-2553 (the upper 359 cm) \nwas studied at high resolution (average sample resolution of ~47 yr) \nfor clay mineralogy and grain size. Inorganic geochemistry was studied \nfor some major elements (K and Ti) at 1 cm resolution (average sample \nresolution of ~28 yr) using the XRF core scanner. Complementarily, \ntrace and rare earth element (REE) concentrations were determined \nat lower resolutions, with average sample resolution of 555 yr.\n\n","onlineResourceLink":"https://www.ncei.noaa.gov/access/paleo-search/study/10417","difMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-ocean-10417.xml","isoMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/iso/xml/noaa-ocean-10417.xml","originalSource":null,"dataTypeInformation":"https://www.ncei.noaa.gov/products/paleoclimatology/paleoceanography","studyCode":null,"scienceKeywords":null,"reconstruction":"N","contributionDate":"2010-09-27","entryId":"noaa-ocean-10417","earliestYearBP":9990,"mostRecentYearBP":140,"earliestYearCE":-8040,"mostRecentYearCE":1810,"publication":[{"author":{"name":"Montero-Serrano, J.C., V. Bout-Roumazeilles, T. Sionneau, N. Tribovillard, A. Bory, B. Flower, A. Riboulleau, P. Martinez, and I. Billy"},"pubYear":2010,"title":"Changes in precipitation regimes over North America during the Holocene as recorded by mineralogy and geochemistry of Gulf of Mexico sediments","journal":"Global and Planetary Change","volume":"74","edition":null,"issue":"3-4","pages":"132-143","reportNumber":null,"citation":"Montero-Serrano, J.C., V. Bout-Roumazeilles, T. Sionneau, N. Tribovillard, A. Bory, B. Flower, A. Riboulleau, P. Martinez, and I. Billy. 2010. Changes in precipitation regimes over North America during the Holocene as recorded by mineralogy and geochemistry of Gulf of Mexico sediments. Global and Planetary Change, 74(3-4), 132-143. doi: 10.1016/j.gloplacha.2010.09.004","type":"publication","identifier":{"type":"doi","id":"10.1016/j.gloplacha.2010.09.004","url":"http://dx.doi.org/10.1016/j.gloplacha.2010.09.004"},"abstract":"Changes in terrigenous-transfer patterns from North America toward the Gulf of Mexico via the Mississippi River during the Holocene were investigated using mineralogical and geochemical records from the northern Gulf of Mexico (Pigmy Basin). Clay mineralogy (smectite/illite+chlorite) and geochemical signatures (K and Ti intensities) indicate fluctuations in the detrital sedimentation during the Holocene in the Pigmy Basin. They likely reflect alternations between at least two dominant terrigenous sources: the smectite-rich NW Mississippi watershed, and the illite- and chlorite-rich Great Lakes province and NE Mississippi watershed. These recurring and rapid modifications of erosional processes over this period suggest changes in the hydrological regime via rainfall patterns. Such a modification during the Holocene is likely linked with the rapid atmospheric reorganization following the final collapse of the Laurentide Ice Sheet. Indeed, mineralogical and geochemical proxies indicate east-to-west migrations of the main detrital source (from the Great Lakes and north-eastern province toward the north-western province) associated with Mississippi River megaflood episodes. These modifications of the main detrital sources likely record migrations of the precipitation belt, which are constrained by atmospheric configuration (Jet Stream, Bermuda High and Intertropical Convergence Zone position) and subtropical oceanic hydrological properties (meridional extension of the Atlantic Warm Pool). In the frame of previously published rainfall patterns over the Caribbean and North America, our results highlight some marked modifications of moisture transfer throughout the Holocene. These changes are interpreted as resulting from two atmospheric configurations that have driven alternately the precipitation distribution over North America for the last 10 ka with an apparent cyclicity of ~2.5 ka. The coherent common cyclicity between Gulf of Mexico detrital parameters and Greenland atmospheric proxies over the Holocene suggests that the initial external forcing was rapidly transferred latitudinally through atmospheric processes.","pubRank":"1"}],"site":[{"NOAASiteId":"37001","siteName":"MD02-2553","siteCode":null,"mappable":"Y","locationName":"Ocean>Atlantic Ocean>North Atlantic Ocean>Gulf Of Mexico","geo":{"geoType":"Feature","geometry":{"type":"POINT","coordinates":["27.1835","-91.4167"]},"properties":{"southernmostLatitude":"27.1835","northernmostLatitude":"27.1835","westernmostLongitude":"-91.4167","easternmostLongitude":"-91.4167","minElevationMeters":"-2259","maxElevationMeters":"-2259"}},"paleoData":[{"dataTableName":"MD02-2553","NOAADataTableId":"19187","earliestYear":9990,"mostRecentYear":140,"timeUnit":"cal yr 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