MEGAGEOMORFOLOGIA DO NORDESTE SETENTRIONAL BRASILEIRO
DOI:
https://doi.org/10.51359/2238-6211.2018.238241Abstract
O presente trabalho apresenta uma reconstituição da história da paisagem geomorfológica em grande escala, do ponto de vista espacial e temporal, relativa ao Nordeste setentrional brasileiro. A reconstituição se dá a partir dos recortes estruturais comandados por três episódios da tectônica de placas (orogênese do Atlântida, Orogênese Brasiliana e divisão do Pangea). Isso implica na ocorrência de geoformas diversificadas, como platôs sedimentares, maciços cristalinos e superfícies aplainadas com amplo controle estrutural, as quais resultam da erosão diferencial que atacou a malha estrutural existente. Salienta-se que a morfologia regional não data do Terciário classicamente admitido, sendo bem mais antiga.
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