CORRELAÇÃO CRONOESTRATIGRÁFICA DOS DEPÓSITOS QUATERNÁRIOS DO PLANALTO SEDIMENTAR DO ARARIPE: UM ESTUDO DE CASO A PARTIR DOS MATERIAIS ENCONTRADOS NO MUNICÍPIO DE CRATO E BARBALHA – SUL DO CEARÁ
DOI:
https://doi.org/10.51359/2238-6211.2018.238214Abstract
No intuito de compreender a evolução do Planalto Sedimentar do Araripe, Lima (2015) mapeou as áreas de sedimentos quaternários, e aplicou a abordagem morfoestratigráfica associada à datação por Luminescência Opticamente Estimulada (LOE). Com esses dados buscou-se estabelecer uma correlação cronoestratigráfica dos depósitos quaternários, a partir dos materiais encontrados no município de Crato e Barbalha, sul do Ceará. Para isso foram coletadas amostras para granulometria e obtenção das idades pelo método LOE. As informações resultantes permitem concluir que o padrão de sedimentação é, atualmente, o principal fator condicionante da produção de sedimento da área. O preenchimento dos setores côncavos das encostas ao longo do Pleistoceno Superior/início do Holoceno, por meio das perturbações climáticas incididas no equilíbrio geomórfico das superfícies, resultou em superfícies deposicionais cuja morfologia atual é de encosta com certa convexidade e colinas alongadas, caracterizando feições.
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