Análise morfoestrutural da cidade de Manaus (AM)

Abstract

The elaboration of this master thesis constitutes an example of the application of the morph-structure/morph-tectonic concept, that with the neotectonic studies this concept has become a synonymous of the neotectonic activity of a region. The morph tectonic characteristic of the city of Manaus, the relation of the main zones of existing faults and its relation with the formation of the landscape was the main objective of this work. The analysis of the satellite images was developed by means of specific software and the established geologic elements had been exported to a software type SIG (System of Geo-referenced Information) for elaboration of the geomorphologic-tectonic map of the region of the city of Manaus. The geomorphologic analysis was developed mainly under the optics of the tectonic geomorphology being subsidized for the images of satellite and the digital models of rise (MDE). The study and analysis of the relief and the draining they had been basic for the characterization of the geomorphologic spots that had been associated to the structural geologic picture of the region, which allow us determine the tectonic partitioning for area in study. With the extraction of the lineaments in relief and draining images of satellite it was possible to nominate the most striking mapped lineaments in the city of Manaus and to compose the morph structural partitioning these had been related with the zones of faults mapped for Hiss (2005). In this manner it can be concluded that the correlation of the guidelines with the zones of faults shows narrow relation and these morph structural guidelines understand zones of faults that possess the following orientation: a) Normal Faults NE-SW: it fault of the left edge of the River Amazon, Fault of the narrow river of the Educandos, Fault of the narrow river of the Mindú, Fault of the narrow river of Bolivia and fault of the narrow river of the Mariano; b) Normal Faults NW-SE: fault in leftside of Rio Negro, Transversal Faul at Igarapé do Educandos e Fault at Igarapé do Aleixo; c) Trough-the-course Fault E-W: trough-the course fault left in Northern portion of Manaus and through-the-river fault left to Boca do Puraquequara.