ANÁLISE CINEMÁTICA MESOSCÓPICA DOS CAVALGAMENTOS DO CINTURÃO ESPINHAÇO NA REGIÃO DE DIAMANTINA, MG

Abstract

MESOSCOPIC KINEMATIC ANALYSIS OF THE THRUSTS OF THE ESPINHAÇO BELT IN THE REGION OF DIAMANTINA, MG. The structural analysis of an outcrop of quartzite belonging to the Diamantina Group, Espinhaço Supergroup, near the town of Diamantina, Minas Gerais allows the interpretation of at least. part of the structural evolution and the characterization of the tectonic style of the western Espinhaço Cordillera. Early intense interlayer slip was followed by the nucleation of WSW-vergent flexural slip folds and developrnent of thrusts. The structures are characteristic of thin-skinned tectonism, under ductile to brittle-ductile conditions and greenschist fácies metamorphism. The temperature effect outlasted that of the deformation.