Navegando por Assunto "Amazon river"
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Item Acesso aberto (Open Access) Métodos de processamento de sísmica rasa em fundos submersos no baixo curso do rio Amazonas(Universidade Federal do Pará, 2014-12-02) WATANABE, Fábio Kiyoshi; PINHEIRO, Roberto Vizeu Lima; http://lattes.cnpq.br/3251836412904734; ROLLNIC, Marcelo; http://lattes.cnpq.br/6585442266149471The study area is located on northeast region of Pará state, it includes the Pará river, Tocantins river’s outfall and Marajó bay. The study is restricted to Amazon estuarine complex, characterized by coastal lowland regions which have been formed during the Holocene marine transgression which flooded vales of rivers. This work aims to improve the knowledge about the shallow seismic methods in the Amazon, specifically on tributary rivers, applying the X-STAR 3200-XS system. The work’s focus is to enable ways to process the information from this geophysical acquisition system, little used in the region, applying methods of treatment in seismic profiles where it’s possible to perceive the horizontal continuity’s distribution and a better morphological identification, besides that is also important locate the depth of acoustic basement. This work intents to present a methodological proposal to investigate the sedimentary unconsolidated covers deposited in submerged areas of different amazonian environments. From these data a processing flow in the region will be made to explain some aspects, related mainly to its limiters, besides more suitable criteria to a better data acquisition.