2019-08-292019-08-292010-02SOUZA, Eduardo de Jesus. Geologia da região costeira do Amapá com ênfase na estratigrafia , morfotectônica e geomorfológica. Orientador: Roberto Vizeu Lima Pinheiro. 2010. 119 f. Trabalho de Curso (Bacharelado em Geologia) – Faculdade de Geologia , Instituto de Geociências, Universidade Federal do Pará, Belém, 2010. Disponível em: http://bdm.ufpa.br/jspui/handle/prefix/1711 Acesso em:.http://bdm.ufpa.br/jspui/handle/prefix/1711The present work is based on the study of the archaean-paleoproterozoic basement rocks, sedimentary rocks and also the pleistocenic sediments exposed along the Amapá state coast and surroundings. It is a multidisciplinary study that uses Remote Sensing Analisys, Structural Geology, Sedimentology, Stratigraphy, Geomorphology and Optically Stimulated Luminescence (OSL) Geochonology. The aim of the research is based on the investigation of the possible relationships between the neotectonic effects over the coastal and shallow marine landscape development and the presence of the Foz do Amazonas basin placed along the marine plataform of the Amapa state. The remote sensing analysis showed the presence of three main sets of fractures and lineaments striking NE-SW, N-S and NW-SE. These directions correspond to the structural trends of the main fractures, shear zones, shear bands and lineations observed in the basement rocks. The geomorphologic domains present in the area are closely controlled by the basement faults and shear structures, affecting the drainage and relieve patterns, strongly suggesting a recent to sub-recent tectonic reactivation. The sedimentary studies pointed out the presence of two morphologic units: a sandy terrace and a sandy-muddy terrace with OSL ages from 80.000 to 30.000 years BP, differently from the early mappings that refer to these sediments as Miocene- Pliocene sedimentary rocks of the Barreiras Group. The Pleistocenic history of the coastal Amapa region was strongly affected by glacioeustatic processes and also neotectonic reactivations coeval with isostatic uplift and subsidence that are mostly related to the latter tectonic activities of the adjacent Foz do Amazonas basin.Acesso AbertoEstratigrafiaMorfotectônicaDepósitos PleistocênicosLuminescência Oticamente Estimulada (LOE)CNPQ::CIENCIAS EXATAS E DA TERRA::GEOCIENCIAS::GEOLOGIATrabalho de Curso - Graduação - Monografia