3D Modeling of structural controlled ore-shoots in a high sulfidation epithermal deposit Guanaco, Northern Chile

LÓPEZ, LUCIANO; JOVIC SEBASTIAN M; PERMUY VIDAL CONRADO; GUIDO DIEGO M; GALINA, MATIAS

Salta

Congreso; 15th Quadriennial IAGOD; 2018

IAGOD

El Guanaco mine is a high sulfidation epithermal deposit located in the Paleocene - Lower Eocene metallogeneticbelt. The deposit is characterized by sub-parallel ledges and veins system formed by vuggy silica and quartz andenargite veins, located in regional ENE-WSW structural trends. The structures have a very discontinuous vein morphologywith an important internal segmentation defined by ENE-WSW, E-W, WNW-ESE directions (Fig. 1A). The structuralanalysis of this deposit, both the tectonic environment and particularly the structural control at deposit scale andmineralized structures, allows us to recognize the different segmentations within trends of structures, defining thesizes, horizontal and vertical continuity, and degree of connection between segments of different orientations, as wellas determining the orientations with greater permeability and greater development of mineralized structures and oreshoots (Fig. 1B), thus generating an optimization in the exploration of this type of structures.