Análise micromorfológica dos depósitos sedimentares do sítio arqueológico Conjunto Vilas, Tefé (AM)

Abstract

The work presents the results of the geoarcheological analysis of the Conjunto Vilas site, Tefé-AM. As the analysis propose an observation of the object in several scales (archeological site, excavation units and anthropogenic soil components), the data acquired is very diverse, resulting the adoption of a group of techniques. During the fieldworks, it was made pedological, geological and archeological observations that resulted in specific records For the analysis of components of each archeological feature or horizon, it was made a micromorphological analysis of thin sections made from undisturbed samples. The analysis of the thin sections was made with a polarized light microscope. The reached results are divided in scales. In a macro-scale, the environment of the archeological site, it was acquired the stratigrafic register of the fluvial terrace that is substrate of the and the description of tree types of soil inside site and other two in the outside of the Conjunto Vilas. In meso-scale, the units f excavation, it was established some depositional and post-depositional process associated to the archeological horizons and features that has enabled interpretations of formations processes. In micro-scale, or in the micro-contexts observed in thin sections, the compositional and structural data allowed the development of microfacies that was associated with the interpreted processes in meso-scale. Lastly, it is still proposed a model that tries to explain the formation processes of Conjunto Vilas site based on some formulated therories and the data of the research