Available Exploration Alliance Area: Constancia

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Deposito tipo Skarn Cu-Au(Mo) en la Primera Región de Chile 

The Constancia Project is located in the Region of Tarapacá, 16km southwest of Huara and 30 km northeast of Iquique, close to the Cu-Au Lagarto project (total resources, including the inferred are: 5,497,120 tonnes of 0.742 g/t Au and 0.31% Cu (1.202 AuEq g/t). The area was identified by a review of historical mining works, that expose areas with copper mineralization, in an approximate area of 3km x 1km. With respect to the geology, metamorphosed limestones appear in contact with granodiorites of the Huara intrusive complex. This project has geological mapping, and some surface samples. On the other hand, a total of 2,134 m of drillholes were completed (RC and DDH), high-lighting intercepts of 40 meters with 0.22% CuT and 66m with 180ppm Mo, with pockets of up to 70 meters with grades reaching 3%Cu; Cu is represented by a oxide min-eralization (brochantite-atacamite-crysocolla), in addition to a zone of mixed and sulfides (py-cpy).

Metamorphosed calcareous units (skarn) with thickness greater than 300 meters were intercepted, also present are evaporite horizons (gypsum, anhydrite and epsomite). Observed alteration includes an intense alteration of garnets (grossular> andradite) and a lower content of pyroxenes, calcite and chlorite.

Finally, this project is related to a Cu-Au, Mo skarn sys-tem with additional favorable gravel covered target with potential to intercept additional intrusive related miner-alization, and skarn zones with similar or higher grade, as well as favorable structural target areas that have yet to be explored and tested. 

This project is easily accessible, using the highway that connects Iquique with Alto Hospicio to the sector of Cale-ta Buena. The current area comprises a total of over 1300 hectares, where less than 40% of the hectares have been explored. 


Darryl D. Lindsay, PhD, PGeo
Metal Business Development Director
+56 9 6648 8511

José Dias C.
Metal Business Development Geologist
+56 9 9370 9859

María José Álvarez
Metal Business Development Manager
+56 9 7465 7359


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