{"refrec":{"BRefID":247009,"RR":"<b>Fagel, N.; Not, C; Gueibe, J.; Mattielli, N.; Bazhenova, E</b> (2014). Late Quaternary evolution of sediment provenances in the Central Arctic Ocean: mineral assemblage, trace element composition and Nd and Pb isotope fingerprints of detrital fraction from the Northern Mendeleev Ridge. <i>Quat. Sci. Rev. 92</i>: 140-154. <a href=\"https://dx.doi.org/10.1016/j.quascirev.2013.12.011\" target=\"_blank\">https://dx.doi.org/10.1016/j.quascirev.2013.12.011</a>","BEntID":238709,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Quat. Sci. Rev. 92</i>: 140-154. <a href=\"https://dx.doi.org/10.1016/j.quascirev.2013.12.011\" target=\"_blank\">https://dx.doi.org/10.1016/j.quascirev.2013.12.011</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Fagel, N.; Not, C; Gueibe, J.; Mattielli, N.; Bazhenova, E","OrigTitleTranslFlag":0,"Authorstringtrunc":"Fagel, N. <i>et al.</i>","Englishabstract":"Mineral assemblage, trace element content and Nd and Pb isotope signatures were analysed on the fine fraction (<20 mu m) of sedimentary records from the Northern Mendeleev Ridge in the Central Arctic Ocean. Our aim was to identify the detrital particle provenance and to interpret the changes over the past similar to 250 ka in the relative contribution of the different source-areas in relation to paleoenvironmental conditions. The clay mineral assemblage and the Nd and Pb isotope signatures depict systematic changes over the Late Quaternary. The bulk mineralogy exhibits increases in the relative contribution of carbonate minerals vs. silicates in interglacial/deglacial intervals. In glacial intervals, the mineral assemblage of the <20 gm fraction is characterised by an enrichment in kaolinite, counterbalanced by a decrease in illite. The Nd and Pb isotope signatures of <20 mu m fraction are interpreted using a three end-member mixing model, involving crustal supplies from North America and Canada, from the Siberian margin and some from volcanic material. A compilation of geochemical signatures of geological terraines surrounding the Arctic Ocean allowed each end-member to be assigned a representative signature, averaging the signal of the eroded terraines. The Suspended Particulate Matter (SPM) of the MacKenzie River represents an average signature of the sedimentary supplies delivered from the North American platform and Canadian margin. The SPM of the Lena River reflects the mean sedimentary signature of the Siberian platform. The Okhotsh-Chukotka province from the Eastern border of Siberia is identified as the most probable volcanic source. Late Quaternary evolution of the estimated relative contribution of the three end-members confirms that the sediment provenances in the Central Arctic Ocean remain close to the current conditions during past interglacials/deglacials MIS1-3, MIS5/TII and MIS7/TIII. In contrast, glacial conditions (MIS4 and MIS6) record minimum supplies from the American margin, associated with increased volcanic contribution, to the Mendeleev Ridge core location suggesting a different sea-ice circulation associated with a low sea-level and reduced shelf area.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Late Quaternary evolution of sediment provenances in the Central Arctic Ocean: mineral assemblage, trace element composition and Nd and Pb isotope fingerprints of detrital fraction from the Northern Mendeleev Ridge","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Arctic Ocean; Sediment; Mineral assemblage; Trace element composition;Radiogenic isotope; Late Quaternary; Paleoceanography","OtherDescriptors":null,"Notes":null,"AnaPub":2014,"MonPub":null,"DateUpdate":"2019-06-26","DateCreate":"2015-05-21","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000337198400010","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/j.quascirev.2013.12.011"},"refs":null,"anarec":{"AnaID":247009,"PubliDate":2014,"Pagination":"140-154","XtraPublOfAnaID":null,"ISBN":null,"Volume":"92","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":45667,"SerRR":"Quaternary Science Reviews. Pergamon Press: Oxford; New York.  ISSN 0277-3791; e-ISSN 1873-457X","StandardTitleSer":"Quaternary Science Reviews","ISSN":"0277-3791","AbbrevSer":"Quat. Sci. Rev.","StandardTitleMon":null,"StartPage":140,"Pages":15,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":null,"othpubs":null,"ownerships":null,"authors":[{"AutName":"Fagel","Firstname":"Nathalie","Initials":"N.","Affiliation":"UR. 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