@Article{AlvesRoss:2016:InNeEs,
               author = "Alves, Fabio Correa and Rossetti, Dilce de F{\'a}tima",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)}",
                title = "Influ{\^e}ncia neotect{\^o}nica no estabelecimento dos vales dos 
                         rios para{\'{\i}}ba e mamanguape, norte da bacia 
                         para{\'{\i}}ba (pb)",
              journal = "Revista Brasileira de Geomorfologia",
                 year = "2016",
               volume = "17",
               number = "3",
                pages = "517--532",
             keywords = "neotect{\^o}nica, ne{\'o}geno, Pleistoceno Tardio, holoceno.",
             abstract = "Evid{\^e}ncias geol{\'o}gicas e geomorfol{\'o}gicas de 
                         atividade neotect{\^o}nica t{\^e}m sido crescentes em diversas 
                         {\'a}reas do nordeste brasileiro, apesar dessa regi{\~a}o ser 
                         considerada como tectonicamente est{\'a}vel, dada sua 
                         localiza{\c{c}}{\~a}o na margem passiva da placa Sulamericana. 
                         Grande parte desse registro neotect{\^o}nico ocorre na Bacia 
                         Para{\'{\i}}ba, caracterizada por altos e baixos topogr{\'a}fi 
                         cos e por sistemas de drenagem com fei{\c{c}}{\~o}es 
                         an{\^o}malas. Publica{\c{c}}{\~o}es pr{\'e}vias propuseram que 
                         cursos fl uviais terminais desta bacia, como {\'e} o caso dos 
                         rios Para{\'{\i}}ba e Mamanguape, est{\~a}o confi nados a 
                         grabens. Por{\'e}m, faltam dados geol{\'o}gicos e 
                         geomorfol{\'o}gicos que comprovem essa interpreta{\c{c}}{\~a}o. 
                         Este trabalho re{\'u}ne informa{\c{c}}{\~o}es estratigr{\'a}fi 
                         cas de subsuperf{\'{\i}}cie com dados morfoestruturais que 
                         permitem sustentar a hip{\'o}tese de controle neotect{\^o}nico 
                         no desenvolvimento dos cursos terminais dos rios Para{\'{\i}}ba 
                         e Mamanguape. Para isso, a an{\'a}lise morfoestrutural derivada 
                         de produtos de sensoriamento remoto foi integrada com a 
                         correla{\c{c}}{\~a}o estratigr{\'a}fi ca regional com base em 
                         dados de subsuperf{\'{\i}}cie. A an{\'a}lise morfoestrutural 
                         revelou lineamentos compat{\'{\i}}veis com a 
                         orienta{\c{c}}{\~a}o de estruturas tect{\^o}nicas regionais 
                         dominantes no nordeste brasileiro, bem como uma variedade de 
                         anomalias de drenagem. A correla{\c{c}}{\~a}o estratigr{\'a}fi 
                         ca mostrou varia{\c{c}}{\~o}es expressivas nas espessuras dos 
                         estratos sedimentares em curtas dist{\^a}ncias, que s{\~a}o 
                         sugestivas de falhas. Atividades tect{\^o}nicas teriam ocorrido 
                         no Ne{\'o}geno, ou seja, durante a deposi{\c{c}}{\~a}o da 
                         Forma{\c{c}}{\~a}o Barreiras, bem como no Quatern{\'a}rio 
                         tardio, ap{\'o}s a deposi{\c{c}}{\~a}o dos Sedimentos 
                         P{\'o}sBarreiras. Portanto, o mais prov{\'a}vel {\'e} que o 
                         estabelecimento dos vales fl uviais dos rios Para{\'{\i}}ba e 
                         Mamanguape tenha ocorrido em grabens formados por 
                         reativa{\c{c}}{\~o}es de falhas pr{\'e}-existentes no 
                         embasamento pr{\'e}cambriano. ABSTRACT: Geomorphological and 
                         geological evidences of neotectonic activity have increased in 
                         several areas of northeastern Brazil, despite that this region is 
                         regarded as tectonically stable due to its location in the passive 
                         margin of the South American plate. The majority of this 
                         neotectonic record occurs in the Para{\'{\i}}ba Basin, which is 
                         characterized by topographic highs and lows and by drainage 
                         systems with anomalous features. Previous studies have proposed 
                         that terminal rivers in this basin, such as the Mamanguape and 
                         Para{\'{\i}}ba Rivers, are confi ned to grabens. However, there 
                         is still an overall lack of geomorphological and geological data 
                         to support this interpretation. This work integrates subsurface 
                         stratigraphic information and morphostructural data that allow to 
                         support the hypothesis of neotectonic control on the development 
                         of the terminal courses of the Mamanguape and Para{\'{\i}}ba 
                         Rivers. To approach this issue, morphostructural analysis derived 
                         from remote sensing products was integrated with stratigraphic 
                         data. The morphostructural analysis revealed lineaments consistent 
                         with the regional tectonic trends that prevail in northeastern 
                         Brazil, as well as a variety of drainage anomalies. The 
                         stratigraphic correlation showed signifi cant variation in the 
                         thicknesses of the sedimentary strata at short distances 
                         suggestive of faults. Tectonic activity would have occurred during 
                         the deposition of the Barreiras Formation in the Neogene and after 
                         the deposition of the Post-Barreiras Sediments in the late 
                         Quaternary. Therefore, the most likely is that the establishment 
                         of the Para{\'{\i}}ba and Mamanguape river valleys occurred in 
                         grabens formed by reactivation of faults pre-existing in the 
                         Precambrian basement.",
                  doi = "10.20502/rbg.v17i3.996",
                  url = "http://dx.doi.org/10.20502/rbg.v17i3.996",
                 issn = "1519-1540",
                label = "lattes: 0307721738107549 2 AlvesRoss:2016:INNEES",
             language = "pt",
           targetfile = "alves_influencia.pdf",
        urlaccessdate = "28 abr. 2024"
}