{"refrec":{"BRefID":382930,"RR":"<b>Vanderstraeten, A.; Mattielli, N.; Laruelle, G.G.; Gili, S.; Bory, A.; Gabrielli, P.; Boxho, S.; Tison, J.-L.; Bonneville, S.</b> (2023). Identifying the provenance and quantifying the contribution of dust sources in EPICA Dronning Maud Land ice core (Antarctica) over the last deglaciation (7-27 kyr BP): A high-resolution, quantitative record from a new Rare Earth Element mixing model. <i>Sci. Total Environ. 881</i>: 163450. <a href=\"https://dx.doi.org/10.1016/j.scitotenv.2023.163450\" target=\"_blank\">https://dx.doi.org/10.1016/j.scitotenv.2023.163450</a>","BEntID":380672,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Sci. Total Environ. 881</i>: 163450. <a href=\"https://dx.doi.org/10.1016/j.scitotenv.2023.163450\" target=\"_blank\">https://dx.doi.org/10.1016/j.scitotenv.2023.163450</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Vanderstraeten, A.; Mattielli, N.; Laruelle, G.G.; Gili, S.; Bory, A.; Gabrielli, P.; Boxho, S.; Tison, J.-L.; Bonneville, S.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Vanderstraeten, A. <i>et al.</i>","Englishabstract":"Antarctic ice cores have revealed the interplay between dust and climate in the Southern Hemisphere. Yet, so far, no continuous record of dust provenance has been established through the last deglaciation. Here, using a new database of 207 Rare Earth Element (REE) patterns measured in dust and sediments/soils from well-known potential source areas (PSA) of the Southern Hemisphere, we developed a statistical model combining those inputs to provide the best fit to the REE patterns measured in EPICA Dronning Maud Land (EDML) ice core (E. Antarctica). Out of 398 samples measured in the EDML core, 386 samples have been un-mixed with statistical significance. Combined with the total atmospheric deposition, we quantified the dust flux from each PSA to EDML between 7 and 27 kyr BP. Our results reveal that the dust composition was relatively uniform up until 14.5 kyr BP despite a large drop in atmospheric deposition at -18 kyr with a large contribution from Patagonia yielding -68 % of total dust deposition. The remaining dust was supplied from Australia (14-15 %), Southern Africa (-9 %), New Zealand (-3-4 %) and Puna-Altiplano (-2-3 %). The most striking change occurred -14.5 kyr BP when Patagonia dropped below 50 % on average while low-latitude PSA increased their contributions to 21-23 % for Southern Africa, 13-21 % for Australia and - 4-10 % for PunaAltiplano. We argue that this shift is linked to long-lasting changes in the hydrology of Patagonian rivers and to sudden acceleration of the submersion of Patagonian shelf at 14.5 kyr BP, highlighting a relationship between dust composi-tion and eustatic sea level. Early Holocene dust composition is highly variable, with Patagonian contribution being still prevalent, at-50 % on average. Provided a good coverage of local and distal PSA, our statistical model based on REE pattern offers a straightforward and cost-effective method to trace dust source in ice cores.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Identifying the provenance and quantifying the contribution of dust sources in EPICA Dronning Maud Land ice core (Antarctica) over the last deglaciation (7-27 kyr BP): A high-resolution, quantitative record from a new Rare Earth Element mixing model","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-02 01:32:23.133475","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Dust provenance; Antarctica; EDML; Ice core; REE","OtherDescriptors":null,"Notes":null,"AnaPub":2023,"MonPub":null,"DateUpdate":"2024-02-19","DateCreate":"2024-02-16","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000986506400001","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/j.scitotenv.2023.163450"},"refs":null,"anarec":{"AnaID":382930,"PubliDate":2023,"Pagination":"163450","XtraPublOfAnaID":null,"ISBN":null,"Volume":"881","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43780,"SerRR":"Science of the Total Environment. Elsevier: Amsterdam.  ISSN 0048-9697; e-ISSN 1879-1026","StandardTitleSer":"Science of the Total Environment","ISSN":"0048-9697","AbbrevSer":"Sci. 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