Aplicação do método eletromagnético indutivo e estudo litogeoquímico: Mina Primavera, Caçapava do Sul - RS

Abstract

The importance of copper mineral research comes from its wide applicability in several sectors of production, due to its technical characteristics and its usability in daily life, the recognition and incorporation of new cupriferous targets is extremely importante. The Study área, Mina Primavera, is located in the municipality of Caçapava do Sul and is related to the Cuprífera Province of Escudo Sul-rio-grandense. This research aimed to collect, analyze data and identify anomalies related to the mineral occurrence of the Primavera Mine, with the aid of structural measures, inductive electromagnetic geophysical method and geochemical analysis of samples. This work was carried out in three stages: pre-field, in which a bibliographic review was carried out on the area and the methods applied; field stage, which was carried out in 3 days where structural measures of foliation of the outcrop rock were collected, applying the EM inductive geophysical method of EM system and XL model divided into 5 profiles with depths 7.5 and 15 m and sampling chip. Sample of 10 rocks samples distributed over the zone; post-field stage, in which the data obtained in the field were treated, analyzed and finally correlated. This work resulted in the elaboration of a brief description of the geology of the area, stereograms of structural measures, maps of isovalues of Au, Zn, Co, Mo, Ni and Rb and graphs with the apparent conductivities of the 5 geophysical profiles and the elaboration of a map apparent conductivity interpolated by minimal curvature of all geophysical profiles and depths investigated. It was possible to identify a cupriferous occurrence in the entire study area, by the results found from the applied methodologies.