Abstract
This paper evaluated the current hydrodynamic, sedimentologic and geomorphologic processes of the high Parana River channels and its relationships with the quaternary fluvial evolution. The relative data of the quaternary geomorphic history and the current river regimen showed that the river is in a present hydro-geomorphologic disequilibrium. Despite multi-channel configuration, the fluvial system develops an adaptive phase in correspondence with the new hydrologic and neotectonic conditions. However, there is not a classification system in the literature taking into account the current High Parana River
Highlights
This paper evaluated the current hydrodynamic, sedimentologic and geomorphologic processes of the high Parana River channels and its relationships with the quaternary fluvial evolution
Despite multi-channel configuration, the fluvial system develops an adaptive phase in correspondence with the new hydrologic and neotectonic conditions
There is not a classification system in the literature taking into account the current High Parana River
Summary
O presente artigo avalia os atuais processos hidrodinâmicos, sedimentológicos e geomorfológicos dos canais do alto Rio Paraná e seus relacionamentos com sua evolução quaternária. Os dados relativos à história geomórfica quaternária e o regime fluvial corrente mostraram que o rio desenvolve no presente, um desequilíbrio hidro-geomorfológico. A despeito da sua configuração multicanal, o sistema fluvial desenvolve uma trajetória de readaptação às novas condições neotectônicas e hidrológicas atuais. Não se encontra nenhuma classificação na literatura para o atual Rio Paraná. Palavras-chave: Geomorfologia fluvial; Quaternário; Rio Paraná; Equilíbrio fluvial. Geomorphic processes and the fluvial equilibrium stage of the high Parana River, south-center of Brazil
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