Análise de parametros das formas de leito eólicas da Formação Pedra Pintada a partir de Modelos Virtuais de Afloramento (MVA)

Abstract

The expansion and dissemination of digital surface analysis technology have significantly enhanced the possibilities for geological field data studies, optimizing the descriptions of analogous outcrops and their properties. These techniques provide a viable solution to overcome challenges related to climate, distance, access to areas of interest, financial resources, time availability, personnel, and transportation during fieldwork. This study presents the results obtained using the Virtual Outcrop Model (VOM) for the stratigraphic and structural interpretation of the aeolian outcrop of the Pedra Pintada Formation, located in the Santana da Boa Vista region. Analogous outcrops are of great interest due to their excellent exposure and preservation. Using data from subsurface analogous outcrops addresses logistical issues, enhancing the understanding of the structure, geometry, and facies distribution of the target deposit. These studies can be conducted using computational models (Virtual Outcrop Models - MVA). This method allows for rock reconstruction in a digital platform, enabling perspective analysis. The objective of this work is to interpret and describe the sedimentary patterns of the bedforms present in the Pedra Pintada Formation, such as paleocurrent directions, set thickness analyses, determining their climbing angles, and quantifying bounding surfaces using field data combined with virtual outcrop models (VOM). Based on these data and studies from other authors, a comparative study was conducted using a table and scatter plot created from the obtained measurements, contributing to the understanding of the tectonic context of the Camaquã Basin.