Análise da Rede de Drenagem na Bacia do Ribeirão dos Rodrigues: Anomalias, Índice RDE e Perfil Longitudinal (Analysis of Network Drainage on Watershed of Rodrigues River: Anomalies, Stream-Gradient Index and Longitudinal Stream Profile)
DOI:
https://doi.org/10.26848/rbgf.v7.3.p442-457Abstract
O desenvolvimento do relevo, assim como a espacialização dos cursos fluviais estão condicionados a diferentes fatores, no entanto aspectos relacionados à litologia e estrutura exercem grande influência no controle de uma bacia hidrográfica. Ao analisar a rede de drenagem de uma bacia hidrográfica a dinâmica geomorfológica quaternária do relevo pode ser interpretada sob o enfoque da Neotectônica, uma vez que os rios reagem a qualquer alteração no nível de base mesmo aqueles mais tênues característicos de áreas intraplaca. Sendo assim, técnicas de análise morfométricas fornecem importantes subsídios para estudos nesta perspectiva; neste sentido, o objetivo deste trabalho foi analisar a relação dos valores do índice RDE e dos padrões no Perfil Longitudinais com as anomalias de drenagem encontradas na bacia hidrográfica do Ribeirão dos Rodrigues, Serra dos Lopes-SP, a fim de entende os controles impostos sobre a drenagem. Foram aplicadas as técnicas mencionadas em três rios da bacia citada, sendo: o Ribeirão dos Rodrigues, o Córrego do Tanquinho e o Córrego do Sítio Velho. Os dois primeiros compreendem a transição entre litologias distintas e são seccionados pela Zona de Cisalhamento de Taxaquara e apresentaram diversos setores com valores altos do RDE e anomalias do Perfil Longitudinal; o ultimo rio está inteiramente no setor sedimentar da bacia e não tem influência direta da ZCTT, no entanto apresentou valores altos de RDE e anomalias no Perfil Longitudinal. A abordagem sistêmica norteou a integração das variáveis e análise dos resultados obtidos.
A B S T R A C T
The development of relief, as well as the spatial distribution are conditioned on different factors, however aspects related to lithology and structure have a great influence on the control of a watershed. The Quaternary geomorphological dynamics of relief can be interpreted trough concepts of neotectonic, focusing on the study of the waterways in a watershed, since the rivers react to some change in the base level, even the most subtle, characteristic of areas intraplate. Thus, measurement techniques provide important data for studies in this perspective, in this sense, the aim of this study was to analyze the relationship of the Stream Gradient-Index values and standard of Longitudinal Stream Profile with the drainage anomalies found in the Basin of Rodrigues River, Serra dos Lopes-SP, to identify neotectonics dynamics in the area. Were applied such techniques in three rivers in the basin mentioned: Rodrigues river, Tanquinho stream and Sítio Velho stream. The first two comprise the transition between different lithologies and are divided by Shear Zone Taxaquara and presented several sectors with high values of RDE and anomalies of the Longitudinal Stream Profile, the third river is entirely in the sector of sedimentary basin and has no direct influence of ZCTT, nevertheless also has shown high values of stream-gradient index and anomalies in longitudinal stream profile. The systemic approach guided the integration of variables and results analyzed.
Keywords: Neotectonics, Morphometric Analysis; Watershed; Drainage Anomalies
Downloads
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2014 André de Oliveira Souza, Emerson Martins Arruda
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors who publish with Revista Brasileira de Geografia Física agree to the following terms:
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under the Creative Commons Attribution 4.0 International (CC BY 4.0) license that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
Authors are permitted to make their work available online before or during the editorial process, on academic social networks, digital repositories, or preprint servers. After publication in Revista Brasileira de Geografia Física, authors are expected to update the preprint or postprint versions on the platforms where they were originally made available, providing a link to the final published version and any other relevant information, with proper recognition of authorship and the initial publication in this journal.
You are free to:
Share — copy and redistribute the material in any medium or format for any purpose, even commercially.
Adapt — remix, transform, and build upon the material for any purpose, even commercially.
The licensor cannot revoke these freedoms as long as you follow the license terms.
Under the following terms:
Attribution — You must give appropriate credit , provide a link to the license, and indicate if changes were made . You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
