Aspectos fisiográficos, sedimentológicos e estruturais do fundo marinho em uma área da porção central da bacia do Espírito Santo

• Ano de defesa: 2012
• Autor(a) principal: Tschiedel, Flávio Eduardo
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal do Espírito Santo; BR; Mestrado em Oceanografia Ambiental; UFES; Programa de Pós-Graduação em Oceanografia Ambiental
• Palavras-chave em Português: Geological oceanography; Seabed; Integration of geological and geophysical data; Espírito Santo basin; Oceanografia geológica; Fundo marinho; Integração de dados geológicos e geofísicos; Bacia do Espírito Santo; Geologia submarina; Fundo do mar - Sondagem; Fundo oceânico; Bacias sedimentares; Ciências Ambientais; 55
• Link de acesso: http://repositorio.ufes.br/handle/10/2060

The development of industrial activity in the state of Espírito Santo (Brazil) in recent years has been highlighted in offshore regions. The government agency that controls the activities of oil exploration and production in sedimentary basins in Brazil requires, for activities offshore, the geological knowledge of the seabed as well as geological structures related to it that may cause geological and environmental risk in the future. Engineering works in these areas are related to the development of the activity of exploration and production of oil primarily. The lack of knowledge of buried geological features and geological aspects of the seabed may hinder or impede the execution of projects in this activity due to unforeseen peculiarities. This work includes the identification of physiographic features of the seabed in the Continental Shelf and Slope areas in the Espírito Santo sedimentary basin. The area is about 45km away from the coast, adjacent the Doce River mouth. In order to reach the target, this study uses various analysis tools (2D and 3D seismic, high resolution seismic, seabed samples and wells) aiming at identifying seabed characteristics, involving structural and sedimentological aspects. It also presents a brief discussion about the applicability of the use of geophysical methods in this study, and a comparison of the uses of geophysical methods and their ability to identify the physiographic features of the seabed in the area of this project. At the end a predictive map of physiographic characteristics of the seabed is presented, identifying areas of salt influence and geological faults, channels and others. The area was subdivided into three regions, taking into account the predominance of physiographic features and geological risks they present.