Aerogeofísica aplicada na interpretação geológica da porção sul do Domínio Rio Maria, folha SC 22-x-c

Abstract

Search area is located on the Santana do Araguaia SC.22-X-C, portion south of the Rio Maria Domain, contained in the Carajás Province, Amazon Craton. Where often academic research are developed, with the objective of promoting the geological knowledge of the region. This research looks to contribute with the same, using techniques of data processing to obtain geological information of the Aerogeophysical data provided by CPRM - National Company of Mineral Production.Using aeromagnetometry data, maps of the Anomalous Magnetic Field, Analytical Signal Amplitude and First Vertical Derivative in which through the visual analysis it was possible to extract the magnetic alignments and define the magnetic domains of the area.Already, through the data of aerogamaespectrometria were produced maps of Total Count, Potassium Channel, Thorium Channel, Uranium Channel, RGB and CMY ternary compositions that provided data for classification of the area into 09 different classes. By integrating the data of magnetic alignments, magnetic domains and gamma-spectrometric classes, it was possible to make the lithogeophysical map, delimiting 06 different units and information about the structural standard of the area and information on the boundaries between the current Rio Maria and Santana do Araguaia Domains.