Processamento e interpretação de dados magnetométricos e gamaespectrométricos aéreos da Região de Morrinhos-Buriti Alegre, Goiás

Abstract

This work is related to geophysical processing and interpretation, from the Morrinhos (SE.22-X-D) and Uberlândia (SE.22-Z-B) cartographic maps areas. The results allow the inference of geological structures, kinematic indicators, correlation of domains (magnetic and radiometric) with geological units and a better understanding of the tectonic system of the region. The main purpose is support the graduate UFG (Universidade Federal de Goiás) geological mapping and opening possibilities to locate mineral resources. The production of the maps was done through data processing, applying methods such as quality control, 2-D interpolation and linear transformation of the data to generate several products: Total Gradient (Amplitude of Analytical Signal), Vertical Derivative, Horizontal Gradient (magnetic) and K, U and Th channels, Total Count and RGB-KThU Ternary Image (radiometric). The interpretation of magnetic data allowed the delimitation of magnetic structures and domains, while the interpretation of radiometric data allowed the delimitation of several radiometric domains correlated with geological characteristics. The correlation with geological information yield final products, which contribute to the knowledge of the areas mapped in the region and help to understand the relations of the anomalies to the local geology.