We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
ANÁLISE TECTÔNICA NA REDE DE DRENAGEM DA MANTIQUEIRA MERIDIONAL E SETENTRIONAL (MG).
- Authors
Pacheco Silva, Felipe
- Abstract
The approach of this research is based on the methodological proposals in tectonic geomorphology, present in the work developed by Keller and Pinter (1996). Tectonic geomorphology seeks to elucidate aspects of the geological history of terrestrial landscapes and how tectonic processes have influenced the framing of the relief. In view of this, the objective of this research is to identify the tectonic efforts in the drainage network of the Mantiqueira mountain range and to evaluate the neotectonic implications in the drainage network of Southern and Northern Mantiqueira. The Caparaó river basin (Northern Mantiqueira) and the Bananal river basin (Southern Mantiqueira) were selected for investigation and application of three geomorphometric indexes: Transverse Symmetry Factor - T (COX, 1994), Hypsometric Integral and Curve - HI (KELLER and PINTER, 1996) and Drainage Basin Asymmetry - AF (HARE and GARDNER, 1985). In general, the selected basins present a distinct configuration of the drainage network, a minor asymmetry was observed in the Caparaó river basin, which presented punctual deformations in the drainage network for the T index; in contrast, the Bananal river basin presented a set of anomalies and asymmetries more pronounced to a picture of more recent deformations, gathering high values of T and AF. In this context, it was possible to register how the drainage of the Meridional segment of the Serra da Mantiqueira has strong links with the efforts coming from the Mesozoic-Cenozoic tectonic reactivation.
- Subjects
MORPHOTECTONICS; WATERSHEDS; GEOMORPHOLOGY; DRAINAGE; NEOTECTONICS; HARES
- Publication
Geo UERJ, 2023, Issue 42, p1
- ISSN
1415-7543
- Publication type
Article
- DOI
10.12957/geouerj.2023.74354