Reorganization of the drainage network based on morphostructural controls in passive margins

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Autor(es): dc.contributorFederal University of Alfenas (UNIFAL-MG)-
Autor(es): dc.contributorQueens College - City University of New York (CUNY)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorScience and Technology of Southern Minas Gerais (IFSULDEMINAS)-
Autor(es): dc.contributorUniversidade Federal do Rio de Janeiro (UFRJ)-
Autor(es): dc.creatorCruz, Beatriz Liara da-
Autor(es): dc.creatorArchanjo, Raissa Eduarda da Silva-
Autor(es): dc.creatorSilva, Renato Villela Mafra Alves da-
Autor(es): dc.creatorSantana, Derielsen Brandão-
Autor(es): dc.creatorRios, Guilherme da Silva-
Autor(es): dc.creatorMoreira, Vinícius Borges-
Autor(es): dc.creatorOliveira, Thomaz Alvisi de-
Autor(es): dc.creatorFernandes, Nelson Ferreira-
Autor(es): dc.creatorMincato, Ronaldo Luiz-
Autor(es): dc.creatorRubira, Felipe Gomes-
Data de aceite: dc.date.accessioned2025-08-21T17:55:56Z-
Data de disponibilização: dc.date.available2025-08-21T17:55:56Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2025-06-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.geomorph.2025.109693-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/301441-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/301441-
Descrição: dc.descriptionThe reorganization of drainage network and divide migration are fundamental to assessing the influence of tectonics, lithology, climate, base-level changes, and erosional processes on fluvial landscape evolution. However, most studies focus on tectonically active regions, leaving gaps in the understanding of these processes in intraplate settings. In South America, drainage reorganization along passive margin escarpments that drain inland under humid conditions remains poorly explored. The lack of comparative analyses between Neoproterozoic mobile belts and cratons in tectonically quiescent areas highlights the need for a comprehensive approach. In this context, this study investigates the evolution of drainage network and divide migration in a diverse morphostructural setting, considering tectonic legacies in intraplate zones. Using the Upper and Middle Grande River basin in Brazil as a study area, we applied classic morphometric parameters, identified knickpoints, analyzed longitudinal profiles, calculated normalized steepness index (ksn), and assessed drainage divide stability using the χ index. The results indicate that drainage reorganization and topographic rejuvenation are common in tectonically quiescent regions of the Brazilian Atlantic margin due to morphostructural controls and tectonic reactivations. Drainage networks of sub-basins within mobile belts exhibit greater instability than those in cratonic areas. Substrate resistance plays a key role in differential erosion and influences knickpoint formation and distribution. Although the knickpoints of resistant rocks slow down the propagation of erosional waves, differential lithologic resistance, layer inclination, and thickness result in varying degrees of persistence and long-term transient instabilities. These conditions drive river captures, drainage divide rejuvenation, and adjustments in erosional-depositional patterns.-
Descrição: dc.descriptionGraduate Program in Geography Federal University of Alfenas (UNIFAL-MG)-
Descrição: dc.descriptionSchool of Earth and Environmental Sciences Queens College - City University of New York (CUNY)-
Descrição: dc.descriptionGraduate Program in Environmental Sciences Federal University of Alfenas (UNIFAL-MG)-
Descrição: dc.descriptionInstitute of Geosciences and Exact Sciences São Paulo State University (UNESP)-
Descrição: dc.descriptionFederal Institute of Education Science and Technology of Southern Minas Gerais (IFSULDEMINAS)-
Descrição: dc.descriptionDepartment of Geography Federal University of Rio de Janeiro (UFRJ)-
Descrição: dc.descriptionInstitute of Natural Sciences Federal University of Alfenas (UNIFAL-MG)-
Descrição: dc.descriptionInstitute of Geosciences and Exact Sciences São Paulo State University (UNESP)-
Idioma: dc.languageen-
Relação: dc.relationGeomorphology-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectDivide migration-
Palavras-chave: dc.subjectFluvial erosion-
Palavras-chave: dc.subjectSteady state-
Palavras-chave: dc.subjectTransience-
Título: dc.titleReorganization of the drainage network based on morphostructural controls in passive margins-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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