{"refrec":{"BRefID":367421,"RR":"<b>Noucoucouk, A.A.; Silva, M.R.; Melo, R.M.; Maia, R.J.A.; Bergue, C.T.; Piovesan, E.K.</b> (2023). Paleoenvironmental significance of benthic Foraminifera and Ostracoda from the late quaternary of the Ceará Basin, Brazilian Equatorial Margin. <i>Brazilian Journal of Geology 53(1)</i>: e20220030. <a href=\"https://dx.doi.org/10.1590/2317-4889202220220030\" target=\"_blank\">https://dx.doi.org/10.1590/2317-4889202220220030</a>","BEntID":365146,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Brazilian Journal of Geology 53(1)</i>: e20220030. <a href=\"https://dx.doi.org/10.1590/2317-4889202220220030\" target=\"_blank\">https://dx.doi.org/10.1590/2317-4889202220220030</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Noucoucouk, A.A.; Silva, M.R.; Melo, R.M.; Maia, R.J.A.; Bergue, C.T.; Piovesan, E.K.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Noucoucouk, A.A. <i>et al.</i>","Englishabstract":"Benthic foraminifera, ostracods and pteropods are reliable paleoenvironmental indicators in Quaternary deposits. However, in the Ceará Basin, on the Brazilian Equatorial Margin, these microfossils are poorly studied. This paper investigates environmental changes during the Pleistocene–Holocene transition in the Icaraí subbasin based on micropaleontological analysis of the core ANP 1011. Seventy-four taxa of benthic foraminifera, represented predominantly by <i>Globocassidulina</i>, <i>Uvigerina</i>, <i>Pyrgo</i> and <i>Melonis</i>, have been identified. The ostracod assemblages are composed mainly by the families Macrocyprididae, Cytheruridae, Trachyleberididae, Pontocyprididae and Krithidae, of which the genus <i>Krithe</i> was the most abundant. The composition of the ostracod assemblages identified in this study area differs somewhat from other regions of the Brazilian Margin. The assemblages of foraminifera and ostracod characterize a typical bathyal paleoenvironment. The occurrence of pteropods and dominance of epifaunal foraminifera taxa, mainly <i>Pyrgo</i> sp. and <i>Miliolinella</i> sp. in the lower portion of the core (Pleistocene), indicates higher phytodetritus input and oxygen concentration. A conspicuous environmental change was observed in the upper portion of the core, which corresponds to the Holocene, where the increase of infaunal foraminifera (e.g., <i>Uvigerina</i>, <i>Globocassidulina</i> and <i>Melonis</i>) suggests reduction in the organic matter input and, probably, increased bacterial density and depletion in dissolved oxygen in the sediment.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Paleoenvironmental significance of benthic Foraminifera and Ostracoda from the late quaternary of the Ceará Basin, Brazilian Equatorial Margin","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":"Pleistocene-Holocene; paleoceanography; bathyal; calcareous microfossils; paleoecology","OtherDescriptors":null,"Notes":null,"AnaPub":2023,"MonPub":null,"DateUpdate":"2023-09-25","DateCreate":"2023-09-25","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:001013085800001","VABBcode":null,"OpenAcc":1,"DOI":"10.1590/2317-4889202220220030"},"refs":null,"anarec":{"AnaID":367421,"PubliDate":2023,"Pagination":"e20220030","XtraPublOfAnaID":null,"ISBN":null,"Volume":"53","Issue":"1","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":264853,"SerRR":"Brazilian Journal of Geology: Sao Paulo.  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