According to the assessment done by Danderfer (2006), the area where are currently located several properties owned by Minera Cordillera del Viento could be described as “an area of great importance for the exploration of metals” (Ag-Au-Pb-Zn).
After such definitions, Minera Cordillera del Viento S.A., presented to the Province Mining Authority a proposal of exploratory works for the mines in these areas.
Such works are summarized in the working plan designed by Casé (2007), which proposed to define new explorations within the limits of the properties of the mines called “Raza Fuerte“ and “Don Carlo“. The suggestion of focusing the exploration in the mentioned deposits is based on the fact that both properties, apart from presenting favorable geological and structural conditions,
are virtually surrounded by the explorations made by MAGSA. The mentioned working plan, includes the following important observations:
“The area occupied by the properties of both mines corresponds to the southern sector of the stratabound barite deposit Arroyo Nuevo. It is a fault area in which at least two important fractures meet, which limit the barite mineralization and at the same time they are associated to the intrusion of stocks in dacitic veins. When the mine Arroyo Nuevo was exploited, the sector was object of permanent exploration in order to detect the continuity of the barite mantle, both from the outside and inside of the mine, with not very promising results in most cases. Probably those results of greater interests were the ones obtained by Minera Andes, apparently intersecting horizons with some disseminated mineralization of gold in sediments. The isolated encounters of barite, both in Raza Fuerte and Don Carlos, do not rule out the possibility of finding other barite mineralizations in the sector.
In agreement with the results of the petrocalcographic report and to the geological and structural conditions, the area of the mines Raza Fuerte and Don Carlos could correspond to an important fracture area that favored the circulation of hydrothermal fluids. Barite and basic metals deposits could be associated to this fact, as well as the presence of gold and other metallic elements. The area of most prospective interest is located between two regional fractures to the south of the mine Arroyo Nuevo, indicated in the attached map as FS1 and FS2.
The later seems to correspond with the main area of delivery and circulation of hydrothermal fluids responsible for the formation of breccias and silica porous bodies (silica vuggy).
The area of both deposits has prospective interest since the analyzed rocks could correspond in a first approximation to a favorable environment for the formation of sub-volcanic deposits of gold and basic metals associated to barite.
Taking this fact into account, it is considered that the exploration of the area must continue with a more detailed mapping focused in the described area, geochemical sampling and survey of present structures and alterations.“
The sampling done by Danderfer (2006) shows that the silication sectors with presence of sulfides could be extended to the north of the selected by Casé (2007), which could expand the prospective possibilities of the site. Considering the limited amount of samples available to evaluate the potential of the area covered by the properties owned by Minera Cordillera del Viento (which all together sum up approximately 900 hectares), the works proposed in both reports would contribute to define the most interesting sites to do further explorations.
The situation of this area is quite similar to the situation in Yeguas hill, with the significant difference that a larger legal covering of the properties of Minera Cordillera del Viento in the area grants better possibilities to place within them new exploratory works and surveys without interfering with the existing mining rights in the environment.