http://hdl.handle.net/11422/55 2026-04-16T05:18:37Z 2026-04-16T05:18:37Z Matos, Claudia Sá Rego http://hdl.handle.net/11422/29031 2026-04-09T03:00:14Z 2015-09-18T00:00:00Z

Title: Análise micromorfológica dos depósitos sedimentares do sítio arqueológico Conjunto Vilas, Tefé (AM) Author(s)/Inventor(s): Matos, Claudia Sá Rego Advisor: Ramos, Renato Rodriguez Cabral 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 Publisher: Universidade Federal do Rio de Janeiro Type: Dissertação

2015-09-18T00:00:00Z Ávila, Ciro Alexandre http://hdl.handle.net/11422/5755 2023-12-21T03:05:26Z 1992-08-01T00:00:00Z

Title: Geologia, petrografia e geoquímica das rochas plutônicas precambrianas (unidade metadiorítica Ibitutinga e unidade metatrondhjemítica Caburu) intrusivas nas rochas do greenstone Belt Barbacena, São João del Rei, Minas Gerais Author(s)/Inventor(s): Ávila, Ciro Alexandre Advisor: Pires, Fernando Roberto Mendes Abstract: In the southeastern portion of the São Francisco Craton, located between São João Del Rey and Ritápolis cities (Minas Gerai, State) an area of nearly 180 km² of rocks of the Barbacena Greenstone Belt (metaultramafic and amphibolitic rocks, and schists) and associated mafic to felsic plutonic intrusives was mapped. The Granodioritic – Granitic Unit comprises granites, quartz monnzodiorJtes and granodiorites, previously vaguely described in the litera.ture as granite. The parental magmas for this rock unit are interpretated as the most. Possible source of the K-rich solutions responsible for the metasomatic transtormations of the rocks of Ibitutinga Metadioritic Unit and the Caburu Metatrondhjemitic Unil. Publisher: Universidade Federal do Rio de Janeiro Type: Dissertação

1992-08-01T00:00:00Z Gaglianone, Paulo César http://hdl.handle.net/11422/5523 2023-12-21T03:05:42Z 1971-01-01T00:00:00Z

Title: Geologia e tectônica do intervalo Serra do Engenho Novo - Sumaré, no Estado da Guanabara Author(s)/Inventor(s): Gaglianone, Paulo César Advisor: Costa, Luis Alfredo Moutinho da Abstract: During the course of the present work, are reported some comparative field data, with statistic analysis from serra do Engenho Novo, Sumaré and Borem in Guanabara State. The metasedimentary rocks of the region belonging to the precambrian are widely distributed. They comprise a considerable porttion of the "Fundamental Complex" as gneisses and migmatites and a younger granitic intrusion om the ocidental margin of serra do Engenho Novo. They have been affected by different degrees of fpldings and the diagrams (s-pole and frequence of linear structures) show the effect of interference by superposed foldings. The overall relationship suggest that the structure of serra do Engenho Novo is different from the other areas and they are very complex. Publisher: Universidade Federal do Rio de Janeiro Type: Dissertação

1971-01-01T00:00:00Z Sobreira, Frederico Garcia http://hdl.handle.net/11422/3835 2023-12-21T03:05:27Z 1989-01-01T00:00:00Z

Title: Estudo das encostas ocupadas desordenadamente na cidade do Rio de Janeiro: a favela do Vidigal Author(s)/Inventor(s): Sobreira, Frederico Garcia Advisor: Barroso, Josué Alves Abstract: The disordered development, the economic conditions of the population, historical factors as well as the lack of suitable areas for occupation have led to a chaotic framework of the urban structure in Rio de Janeiro. Abrupt hills and swampy areas have been gradually occupied by the low income people who try to solve their prompt livin and transportation problems. As a consequence, natural problems which exist in such areas have become more serious with even the risk of life of the population. This work presents a contribuition to the geological-geothecnical study thecnique of disordered occupied slopes (favelas). A versatile character of the metodological directive is due to unequal conditions in each one of such places. A map of soil use has been obtained from a detailed geological-geothecnical mapping (1:2.000 scale) from a declivity map and from local existing problems. This map purposes to give directions and to organize the occupation by indicating urbanizable, partly urbanizable, risk and preservation areas. The locality choosen for such study was the "favela do Vidigal", at the "Dois Irmãos" hill, south zone of the Rio de Janeiro city. Due to several existing technical situations and the kinds of occupation, this area has provided a general application work. Publisher: Universidade Federal do Rio de Janeiro Type: Dissertação

1989-01-01T00:00:00Z