2019-02-152019-02-152016-10-17SILVA, Larissa Silva e. Contribuição ao conhecimento das formações Barreiras Pirabas utilizando-se ferramentas da análise estrutural com vistas à aplicação em hidrogeologia. Orientador: Francisco de Assis Matos de Abreu. 2016. 109 f. Dissertação (Mestrado em Geologia e Geoquímica) – Instituto de Geociências, Universidade Federal do Pará, Belém, 2016. Disponível em: http://repositorio.ufpa.br/jspui/handle/2011/10626. Acesso em:.https://repositorio.ufpa.br/handle/2011/10626The existence of hydraulic connection between Barreiras and Pirabas aquifers systems in the northeast area of the State of Pará, more specifically in the metropolitan region of Belém - RMB has been raised, a few years ago, by different authors from the application of various analytical techniques. This work presents further contribution to this theme, that has been aggregated to the data and to the information obtained from the use of structural analysis tools, to understand the groundwater flow mechanism and recharge conditions, which takes place in area under consideration. The work was performed from the databases on existing wells in private and public agencies. The performed structural analysis considered the geometric-kinematic elements present in the mentioned water systems and it advanced in the knowledge of the tectonic processes that have led to the conformation of the geometric arrangement present in the area, considered essentially as neotectonic. It was found that the development of brittle tectonic structures, especially holes, printed on regional rocks that enclose the water systems, leading to spatial composition of morpho-structural blocks arrangements horsts and grabens limited preferably by the NE and SW discontinuities resulting from the interaction of normal faults with strike-slip faults. The boundaries of these blocks, always marked by failures allow the interconnection of the movement of water from aquifers of different spatial positions systems, sustained by the principle of communicating vessels, the elapsing the mixture of water contained in each one of them individually. So it is impossible to keep the model advocated by several authors in the literature of regional aquifer confinement. On the other hand, the development of potentiometric maps and flow in regions of sedimentary rocks, where it is called homogeneous media, as this case is of the RMB cannot be done without considering the structural analysis, geometry and kinematics, otherwise it would be misunderstood in the preparation of such results and mistaken hydrogeological interpretation. Thus, it is necessary to review the methodologies for the preparation of these important instruments in order to obtain more precise results on the flow mechanisms, recharge and discharge of water systems which has been developed and answered in this work.Acesso AbertoAnálise estrutural (Engenharia)HidrogeologiaConexão hidráulicaSistemas Aquíferos Barreiras e PirabasDissertaçãoCNPQ::CIENCIAS EXATAS E DA TERRA::GEOCIENCIAS::GEOLOGIA::HIDROGEOLOGIAANÁLISE FACIOLÓGICA, ESTRATIGRÁFICA E DE PROVENIENCIAGEOLOGIA