Mapeamento de feições estruturais com aerolevantamento lidar no corpo mineral S11b, serra sul, Província Carajás – PA

Abstract

The present research aims to evaluate the quality of topographic information acquired from an airborne LiDAR system, with regard to its use as a digital geomorphological analysis tool applied for highly complex structural terrains, and to prove whether the technology serves as an alternative way that alleviates obstacles inherent to a presential approach or not. Therefore, the S11B (Serra Sul) mineral body was used as a study target for making digital terrain models using the kriging interpolation technique. The product of the processing allowed, in the office, a three-dimensional visualization of the geometry of the relief and extraction of structural features, especially related to the ferriferous bandings, for study and statistical validation through previous structural mapping works carried out in the region. The result of this work allowed the identification of NE-SW and NW-SE structures equivalents with the information present in the literature and with information collected in the field. Above all, it was discovered the ease of perception of the earthly behavior from the rendering of the modeled from its plane slope directions.