MORPHOLOGICAL AND MORPHOMETRIC ANALYSIS OF THE CASCATA AND TINTO RIVERS SUB-BASINS, NORTHERN COAST OF THE PARAIBA STATE - BRAZIL

da Silva, Ivanildo Costa ✉; Furrier, Max

Spanyol nyelvű Tudományos Szakcikk (Folyóiratcikk)
  • SJR Scopus - Earth-Surface Processes: Q4
Azonosítók
Szakterületek:
    The present study aims to analyze morphological and morphometric parameters of the relief and drainage network in the watersheds of the Cascata and Tinto rivers, in the northern coast of Paraiba State, to detect possible contributions of the geological structure and tectonic activity in its configurations. The analyzes were carried out with the aid of the Digital Terrain Model (DTM) and the altimetry and slope maps, all generated in the SPRING 5.4.3 Software, from data extracted from topographic charts in the 1: 25,000 scale. For the morphometric analysis, the indexes Slope vs Length (SL), Ratio of Valley-Floor width to Valley Height (Vf) and Asymmetric Factor (AF) were applied. Geological interpretations were based on recent geological mappings and their respective technical reports as well as field work. The watershed of the Cascata River presents a sharp tip to the right side, where its most developed tributary canals are located. Its main channel presents an inflection that abruptly modifies its direction from NE-SW to N-S, anomalies interpreted as conclusive signs of the performance of tectonic activity. The watershed of the Rio Tinto offers well-carved channels V-shaped and tilt to the left bank. Its main channel presents inflections that obey the directions of geological faults described in the geological maps used in this work. These facts are evidences of the structural influence and the tectonic activity in the configuration of the relief and the drainage network, which were corroborated by the results obtained with the application of morphometric indices.
    Hivatkozás stílusok: IEEEACMAPAChicagoHarvardCSLMásolásNyomtatás
    2020-08-12 00:05