2019-10-172019-10-172011-09-21ALENCAR, Luiz Daniel Castro de. Geometria e história, cinemática do segmento setentrional da Faixa Paraguai, na região de Cáceres/ MT. Orientador: Roberto Vizeu Lima Pinheiro. 2011. 94 f. Dissertação (Mestrado em Geologia e Geoquímica) - Instituto de Geociências, Universidade Federal do Pará, Belém, 2011. Disponível em: http://repositorio.ufpa.br/jspui/handle/2011/11941. Acesso em:.https://repositorio.ufpa.br/handle/2011/11941The Paraguay Belt, at the southern edge of the Amazonian Craton, represents a set of supracrustal Proterozoic sedimentary subjected to positive tectonic inversion with excellent exposures in the vicinity of the Cáceres region, Mato Grosso, where these rocks are deformed show the context surrounding zones and folds failures. In the study area were identified rocks of the Araras Group: thin limestones and shales (Training Guide) dolomitic breccias (Serra do Quilombo Formation) and sandy dolomites, fine sandstones (Noble Training) Group and the Upper Paraguay River: sandstones and mudstones (Training Raizama ) and conglomerates, sandstones and mudstones (Diamond Formation). These rocks of the regional point of view presented in a set of holomorphic folds at various scales, axes subparallel to show the architecture of this broad curve orogen in map view. In mesoscopic structure that stands out is the sedimentary layering (S0) that show since subhorizontal (5 ° to 8 °) to subvertical (84 ° to 88 °), with dominant dip towards the NE and NW quadrants. Minor folds, metrics, occur occasionally, with axis trims with low to moderate NW to NE, verging from SE to NW. The mineral stretching lineations, when present, have low trims (20 °) to NE. The shortcoming are reversed and oblique directional, with high dips to SW and NW quadrants, which are contained grooves with trims low (14 °) to moderate (36 °) for the SW quadrant, associated with dextral kinematic component in general. The fractures are almost always present with subvertical NW-SE direction. Tension gash type fractures were observed in thin limestone Training Guide. These fractures are common in the regions flanking folds, with asymmetries indicating dextral shear. Hydraulic breccia are observed in the carbonate rocks and apparently concentrated near areas of hinges of folds. Based on the relation between plane-lineation of bedding, the geometry of folds and brittle elements of plot, it is suggested that these rocks were affected by a system of oblique compression, coupled with a directional component dextral taking the block and climbed over the W where the coaxial component shows become predominant. The partition of the deformation is evidenced by the ratio folds and mineral stretching lineation, where there are corridors that have distinct deformational shear components (pure and simple) and alternating field between a component and another. This compartmentalization of the components of pure shear and simple geometric arrangement associated with the observed structures are the main inducer of a table partitioned transpression, dextral kinematics, developed on supracrustal rocks, subjected to an oblique compression. This complexity of structural organization within the range reflects the geometry resulting in an arc or assumed during the Neoproterozoic collisional event.Acesso AbertoGeometria – Mato GrossoCinemáticaDissertaçãoCNPQ::CIENCIAS EXATAS E DA TERRA::GEOCIENCIAS::GEOLOGIAGEOLOGIA