**2. Study area**

The Geology of the study area is represented mainly by the alluvial deposits approximately to the south of the La Dulcita, an outcrop of basaltic rocks exist in this area, whose height is approximately 15 m from the ground level (**Figure 2**). In the East, there are outcrops of the Caracol Formation, of the Upper Cretaceous [7] forming hills that protrude from the plains (**Figure 3**). It consists of shales of a greenish color, sometimes very dark gray. In the area of the Villa de Ramos, there is a large granite extension, which has almost a North-South course and constitutes a tectonic pillar that presents mineralization in some areas. In addition, also towards the North of Villa de Ramos, there are outcrops of marine sedimentary rocks [7].

La Dulcita area is located in a tectonic pit where the base must be represented by marine sedimentary rocks and probably basaltic lava flows.
