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The Amazon Basin occurs an area of approximately 500.000km 2 covering part of the states of Para and Amazonas. The region studied is located in the southwest portion of the basin and contains sedimentary rocks of the Fanerozoic cover and the basement in the Amazon Central Province. This work based on literature studies, interpretation of orbital images and description of outcrops along the Tapajos River, near the city of Itaituba (PA). Structural analysis consisted of multiscale analysis and integration of images analysis (recognition of morphotectonics features in images SRTM, using data from aeromagnetometria) and using data from the field to determine structural framework and define the stages of post-paleozoic strain that hit the area. From the data of failures and systems of joints, shear zones, slickenside and steps found in outcrops, were developed the structural and kinematic analysis. The application of the method of Turner resulted in the position of paleostress. The results indicate at least 3 stages of strain active at the end of the Paleozoic. The first phase (F1) has dextral kinematic and structure frontal position N60-70E, for maximum stress ( σ 1), allows the compressive deformation, although in a transcurrent context, correlated to the orogeny responsible for the formation of Pangea at the end of Permian. Phase F2, characterized by the presence of normal faults of NE direction coincident with the positioned dikes in the region, may be related to magmatism Penatecaua. Phase F3 be related to a system composed of the combined structures N50-70W (sinistral) and N60-70E (dextral) with direction of σ 1 E-W. Only this phase appears to have affected the cenozoic rocks of Solimoes Formation, and probably is related to the spread of strains of Andean subduction.

Registro da deformação pós-paleozóica na Bacia do Amazonas, região de Itaituba (PA)