Integração e análise de dados aerogamaespectrométricos, aeromagnetométricos e SRTM como ferramenta de suporte no mapeamento geológico em área do Terreno Granito-Greenstone de Rio Maria, região de Xinguara

Abstract

This paper aims to present the results obtained by the integration and analysis of geophysical data and Digital Elevation Model (DEM) images as an important tool in geological mapping in an area located in the Rio Maria Granite-Greenstone Terrane (RMGGT), in the Central Amazonian Province (Tassinari & Macambira, 2004) or Carajás Province (Santos, 2003), southeastern Amazonian Craton, Xinguara area, southeastern Pará. The aerogammaspectrometric and aeromagnetometric data used for this study were acquired by the Brazil-Canada Geophysical Project (PGBC) and the digital elevation images by the Shuttle Radar Topographic Mission (SRTM). The integration and analysis of these data showed to be very useful for geological mapping, specially to distinguish the different lithologies and help to select key areas for more detailed verification during the field mapping. At the end of this study, it was elaborated a geological map for the selected area.