O Parque Nacional Serra da Capivara com suas caracterÃsticas geomorfológicas peculiares faz deste sÃtio um importante foco de estudo. Suas caracterÃsticas geomorfológicas são herdadas do resultado de um tipo de clima muito mais úmido com o atual, além das atividades tectônicas cujo entendimento pormenorizado ainda se encontra distante, pois gerou uma série de esforços nas rochas sedimentares da Bacia do ParnaÃba, o que resultou num intrigado sistema de diaclases de direções variadas e de importância relevante na evolução e configuração atual do relevo. A identificação das diaclases abre um novo caminho para o entendimento do relevo ruiniforme, muito comum nas bordas sul e sudeste do parque, que é gerado pela tendência de infiltração das águas pluviais nessas diaclases, o que acentua o processo erosivo e esculpe formas peculiares. O fator tectônico, muitas vezes renegado ou subestimado na configuração do relevo brasileiro, começa a aflorar de maneira conspÃcua na comunidade geomorfológica brasileira e muitas das explicações sobre o modelado produzidas entre os anos de 1960 a 1990 começam a ser revistos sobre essa nova óptica.
The Serra da Capivara National Park with their peculiar geomorphological characteristics also make it an important focus of studies, once the refief of the area was the scene of activities done by the pre-historical populations who lived there and who registered the most varied daily activities through rupestral paintings. The geomorphological characteristics of the park are inherited from both a kind of much more humid climate, which lasted until approximately 10 thousand years ago, and from the tectonic activities, whose detailed explanation is far from being understood, for they generated a series of efforts in the sedimentary rocks of the Basin of ParnaÃba that resulted in an intriguing system of fractures in various directions, often truncated, of relevant importance for the evolution and current configuration of the relief. The easy visualization of these fractures, through satellite images, aerial photographs, and field work, open a new path for understanding the ruiniform relief, which are common on the southern and south-eastern edges of the park and generated by the tendency of rainwater which percolated these fractures, causing accentuated processes of erosion and sculpting peculiar forms of incredible beauty that fascinate tourists and researchers from various parts of Brazil and the world. The tectonic factor, too often overlooked and underestimated in the configuration of Brazilian relief,begins to emerge so conspicuously in the Brazilian geomorphology community and much of the understanding about patterned produced in the years of 1960 to 1990 are being revised under this new optics.
