Estimativa preliminar de recurso mineral para depósito de ouro

Abstract

The Iron Quadrangle (QF) in Minas Gerais, Brazil, represents an important Brazilian mineral province, with world-class deposits of substances such as gold and iron. Gold deposits were discovered in the 17th century, but until nowadays surface excavations and underground galleries developed by the “bandeirantes” still have been identified and have become research and exploration targets. One of these targets, whose location will not be disclosed, was drilled and a geological model of mineralization was developed using geological-structural mapping data, description and chemical analyses of diamond drilling. A preliminary estimate of mineral resources was made using Leapfrog Geo/Edge. The total gold resources for this area were estimated at 62,660.86 ounces with a grade of 0.53 g/t. Because it is in the early stages of research, with few drilling data (6600m and partially sampled), a classification of this resource estimate was made for illustrative purposes. The deposit has a large proportion of its contents close to the surface, favorable geology and great potential for increasing resources, since the ore body still opens laterally and at depth.