Dissertações em Geofísica (Mestrado) - CPGF/IG
URI Permanente para esta coleçãohttps://repositorio.ufpa.br/handle/2011/4993
O Mestrado Acadêmico pertente a o Programa de Pós-Graduação em Geofísica (CPGF) do Instituto de Geociências (IG) da Universidade Federal do Pará (UFPA).
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Item Acesso aberto (Open Access) Implantação do campo de testes da UFPA para medidas geofísicas(Universidade Federal do Pará, 2013) ALVES, Jerry Williamis Lima; LUIZ, José Gouvêa; http://lattes.cnpq.br/8676530374310847We describe the results obtained during the implementation of the Federal University of Pará test site for geophysical measurements. The work was done in three stages. In the first stage, preliminary studies were accomplished to know the physical background of the area. In the second, artifacts were buried to simulate geophysical anomalies in the measurements. In the third one, new measures were performed to detect anomalies caused by the buried artifacts. Only a part of the artifacts that are scheduled for burial was buried in the site. The buried artifacts are metal pipes, metal drums, and plastic drums. The measures implemented in the first and third stages involved the methods of Electrical Resistivity, Ground Penetrating Radar (GPR), Electromagnetic and Magnetic. The measurements performed in the third stage showed the presence of artifacts in the actual position where they were buried, which turns the area suitable to serve as a training site for geophysical experimental practices.Item Acesso aberto (Open Access) Utilização de medidas elétricas e eletromagnéticas para a prospecção de água subterrânea em Jacundá (Pa)(Universidade Federal do Pará, 2014-02-27) MENDES, Marcelo Fernandes; SILVA, Marcos Welby Correa; http://lattes.cnpq.br/3213216758254128The Jacundá city has a public water system supply in its infancy. From the source surface it is not perennial, small flow and serves less than 20% of the population. Open and shallow tube wells are sources of particular use, limited and seasonal. However, the flow of two deep wells, built in the city, gave evidence that alternative underground water could be a good solution for the local supply. This fact gave rise to a geophysical study to determine the deeper strata permeable. We used nine vertical electrical sounding, whose interpretation acceptd was guided by the geophysical results obtained in a hole. As a result, the models of VES's packets identified two distinct layers resistivity: A package higher, more resistive a total thickness less than 30 meters, was associated with the Itapecuru formation which, is predominantly sandy hydrogeological and weak. And the other, a substrate of low resistivity, it was assumed corresponding to the Codó Formation shales. The interpretation of Slingram data support this result. The hydrogeological potential of this second package is in the shale interbedded sandstone, which may mean the solution for the management of water supply in the city.