{"refrec":{"BRefID":284209,"RR":"<b>Wu, J.; Liu, Z.; Stuut, J-B W.; Zhao, Y.; Schirone, A.; de Lange, G.J.</b> (2017). North-African paleodrainage discharges to the central Mediterranean during the last 18,000 years: A multiproxy characterization. <i>Quat. Sci. Rev. 163</i>: 95-113. <a href=\"http://dx.doi.org/10.1016/j.quascirev.2017.03.015\" target=\"_blank\">dx.doi.org/10.1016/j.quascirev.2017.03.015</a>","BEntID":276233,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Quat. Sci. Rev. 163</i>: 95-113. <a href=\"https://dx.doi.org/10.1016/j.quascirev.2017.03.015\" target=\"_blank\">https://dx.doi.org/10.1016/j.quascirev.2017.03.015</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Wu, J.; Liu, Z.; Stuut, J-B W.; Zhao, Y.; Schirone, A.; de Lange, G.J.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Wu, J. <i>et al.</i>","Englishabstract":"Using elemental geochemistry, clay mineralogy, grain size end-member modeling, and planktonic foraminiferal δ18O, we characterize the provenance of central-Mediterranean sediments over the past 18 ka. The provenance is dust-dominated before and after the African Humid Period (AHP). By contrast, during the AHP (∼11–5 ka), largely concurrent with organic-rich sapropel S1 formation, it is predominantly riverine from North-African sources. Such fluvial supply is suggested to come from paleodrainage networks that were reactivated by intensified monsoon precipitation during the AHP. The supply is characterized by high Mg/Al and smectite contents, and has been accompanied by considerable freshwater influx, as indicated by the enhanced grain size and lighter foraminiferal δ18O. The clay-mineral assemblages in our core and in nearby cores correspond with a provenance from the Libyan-Tunisian margin, mainly via the paleo-river Irharhar. The inferred fluvial discharge is strongest during the late-AHP (∼8–5.5 ka), coinciding with reported enhanced fluvial dynamics and wettest conditions over western Libya and Tunisia/Algeria. This period is not only synchronous with the largest extension of open-water bodies in North Africa and lowest Saharan dust inputs, but also consistent with precipitation records of the West-African monsoon. Moreover, our records show a remarkable correspondence with that of a paleodrainage system towards the Atlantic West-African margin, inferring a common headwater region in the central Saharan mountains, and a similar climate mechanism. Taken together, we suggest a dominant control of North-African humid surfaces on the paleodrainage delivery, modulated by groundwater level, in response to the insolation-driven West-African monsoon precipitation.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"North-African paleodrainage discharges to the central Mediterranean during the last 18,000 years: A multiproxy characterization","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":"Quaternary; Paleoclimatology; North Africa; Inorganic geochemistry; Clay minerals; Grain size end-member modeling; African humid period; Sapropel S1; Provenance; Paleodrainage systems","OtherDescriptors":null,"Notes":null,"AnaPub":2017,"MonPub":null,"DateUpdate":"2017-03-29","DateCreate":"2017-03-28","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000401204200006","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/j.quascirev.2017.03.015"},"refs":null,"anarec":{"AnaID":284209,"PubliDate":2017,"Pagination":"95-113","XtraPublOfAnaID":null,"ISBN":null,"Volume":"163","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. 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