Interpretación genética de un yacimiento aurífero-cuprífero en la franja metalogenética Nazca - Ocoña para definir la continuidad de la mineralización económica en profundidad

Abstract

The present investigation focuses on the Mirian and Ñusta veins of the Los Incas mine, located in the Las Trancas valley - Nazca, which by not having textural mineragraphic studies, nor thermometry, cannot determine the possibilities of deepening the economic mineral. However, there are recent investigations in Central Asia and Brazil on fluid inclusions where it is detailed that reservoir forming fluid comes from magmatic sources, in the same way there are studies in the analysis unit directed to the metallurgical process of the mineral. The investigated veins are framed in the rocks of the Lower Guaneros formation, which does not present significant deformations, but does present three fault systems through which the hydrothermal solutions flow, which later precipitated and formed the mineralized nails. The geological investigations of the present study are based on the observations made in the field, geological mapping, systematic sampling of mineralized nails, the analysis of the mineragraphic content, the microthermometry studies and the execution of diamond drilling. The mineralized nails have an inclined behavior (60°) with economic minerals such as microcrystalline aggregates intergrown with gangue minerals, where biphasic IF was identified. Finally, if you wish to continue with underground geological exploration, do so by executing inclined shafts with a 2.4 m x 2.1 m section and 50º inclination, called exploration work, since you would be losing $797 per linear meter of progress.