{"refrec":{"BRefID":16079,"RR":"<b>Eisma, D.; Augustinus, P.G.E.F.; Alexander, C.</b> (1991). Recent and subrecent changes in the dispersal of Amazon mud. <i>Neth. J. Sea Res. 28(3)</i>: 181-192","BEntID":16079,"PublicFlag":1,"CheckedFlag":0,"wosflag":null,"vabbflag":null,"RefStringPartII":". <i>Neth. J. Sea Res. 28(3)</i>: 181-192","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Eisma, D.; Augustinus, P.G.E.F.; Alexander, C.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Eisma, D. <i>et al.</i>","Englishabstract":"The dispersal of Amazon mud reaches from the mouth of the Amazon river to the Orinoco delta and to the eastern Caribbean, a distance of more than 1500 km. The present dispersal system has been in existence for at least 10³ years, but the deposition of mud from this system has not been constant during that period. A change from net erosion to net deposition along the Suriname coast between 1947 and 1981 was found to coincide with a shift of the trade winds from a dominantly NE to a more ENE direction from 1959 onward, accompanied by an increase in mean wind velocity. The change to net-deposition can be explained by enhanced longshore transport of suspended matter with simultaneous reduction of erosion by reduction of the onshore wave energy component. The sequence of a recent mud deposit 100-200 years old off the Amazon river mouth separated by a period of non-deposition from an older mud deposit less than 1000 years old, agrees well with indications for a wetter period in the Amazon basin and in the Colombian Andes since about 200 years BP and a wetter period between 500 and 900 y BP. This implies that during wetter periods the suspended-sediment supply from the Amazon (and the Orinoco) was (is) higher.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Recent and subrecent changes in the dispersal of Amazon mud","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":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1991,"MonPub":null,"DateUpdate":"2001-09-17","DateCreate":"2001-08-20","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:A1991HB29400004","VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":16079,"PubliDate":1991,"Pagination":"181-192","XtraPublOfAnaID":null,"ISBN":null,"Volume":"28","Issue":"3","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":44573,"SerRR":"Netherlands Journal of Sea Research. 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