Utilização de métodos geoelétricos para a identificação de alvos promissores na pesquisa mineral de cobre, estudo de caso na região de Canaã dos Carajás - PA

Abstract

The advance of geophysical instruments has transformed and streamlined mineral research, making it possible to identify potential orebodies, increasing the assertiveness of research area and thus enabling the delineation of orebodies and structures, consequently, reducing costs with direct research methods. Thus, this work aims to use geoelectrical methods that can assist in the location and delineation of copper mineralizations in license N0. 854,855/1996 of the, located in the north of the municipality of Canaã dos Carajás. In order to be successful in locating and delimiting these orebodies, extensive bibliographic research was needed regarding the regional and local geology of the target area, crossing of information on soil geochemistry, in addition to 15 acquisitions of electrical tomographs, totaling 9000 meters of investigation by the method of resistivity and induced polarization using dipole-dipole arrays and polo-dipole, which resulted in 15 2D pseudo-sections that were analyzed and interpreted, resulting in the identification of a promising Cu ore-mineral occurrence area in addition to drilling planning that will guide the next steps of mineral research.