Neotectônica atuante na região do Baixo Rio Sergipe

• Autor(a) principal: Siqueira, João Batista
• Data de Publicação: 2017
• Outros Autores: Silveira, Vitor Emmanuel Paes
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da Universidade Federal do Ceará (UFC)
• Texto Completo: http://www.repositorio.ufc.br/handle/riufc/39337
• topic: Neotectônica; Reativação de Falhas; Formação Barreiras; Neotectonics; Barreiras Formation; Fault Reactivation

In the Sergipe River Basin, in the Coastal region of the homonymous State, the Barreiras Formation is deposited on rocks of the Sergipe Sub-Basin, the Cretaceous, and the Sergipana, Neoproterozoic Fold Strip. This work shows the structures originated due to Neotecnics active in the Barreiras Formation, and its relations with the tectonic framework of the Sergipana Fold Strip. The activities were developed in stages, which involved bibliographical revision, tracing of photolinements from the drainage in the geomatic software, statistical analysis in the spring and interpretation. The basement photolinements with NE trends should relate to normal faults, and the NW direction trends with transfer faults. Faults and fractures measured with orientation N10E to NNW would be related to normal faults approximately N-S of the initial opening stage of the Sergipe- Alagoas Basin. The orthogonality between the NE and NW faults can be interpreted as a result ofthe alternating direction between the sub-horizontal tensors c2 and o3.