Cretaceous porphyry mainly covered in the Cordillera de la Costa
The Tentacion District is located in the I Region 75km southeast of Iquique and within the Cretaceous belt where there are mineralized porphyry systems like Tovaku (>500Mt @ 0.25% Cu), Antucoya (642Mt @ 0.35% Cu) and Carmen de Andacollo (19 Mt@0,77%Cu). The area was identified by a basic district scale mapping, mainly around covered areas. In an area of 2km by 2km multiple intrusive events were found with porphyritic textures, which are bearers of late magmatic vein stockwork systems with oxidised Cu mineralization and potassic alteration in porphyries, expressed in early veinlets A and B. Approximately 60% the area is covered by alluvial and colluvial material with variable 10 to 70 m thickness. This project has basic geological mapping, surface samples and caliche drill hole data. A total of 9604m of scout drill holes (RC and DDH) were performed, encountering intercepts such as 115 meters with 0.11% CuT and 70ppm of Mo in the Tentacion project, in addition to 200 meters with 0.14% CuT in Susana project, represented by brochantite, chalcanthite, cuprocopiapite oxide mineralization and a mixed zone of sulfides (py-cpy-molybdenite).
Ricardo Gonzalez Montecinos
Exploration and New Metal Business Manager
Two radiometric dates were made in the sector of Susana, with the following results: 145 Ma (U/Pb; zircon) and 140 (+-0,6) Ma (Re/Os; molybdenum). These projects are related to a covered porphyry system (Cu-Mo), with favorable targets to intercept mineralized intrusions with similar or higher grade, as well as favorable structural zones yet to be tested.
This project has easy access, just 65km from Pozo Almonte on highway 5-North. It comprises a total of more than 3000 hectares, where less than 40% of the hectares have been explored.